├── .gitattributes ├── README.md ├── calcOrientation.m ├── calcSpeed.m ├── coordInsideMask.m ├── drawEllipse.m ├── falldetection.m ├── findOrChg.m ├── fitellipse.m ├── images ├── flowchart.png ├── mask.png ├── mhi.png ├── original.png └── shape.png ├── initializeFallObj.m ├── license.md ├── maskInsideBBox.m ├── modifyMask.m ├── updateCheckPosFalls.m └── videos └── video.mp4 /.gitattributes: -------------------------------------------------------------------------------- 1 | # Auto detect text files and perform LF normalization 2 | * text=auto 3 | 4 | # Custom for Visual Studio 5 | *.cs diff=csharp 6 | 7 | # Standard to msysgit 8 | *.doc diff=astextplain 9 | *.DOC diff=astextplain 10 | *.docx diff=astextplain 11 | *.DOCX diff=astextplain 12 | *.dot diff=astextplain 13 | *.DOT diff=astextplain 14 | *.pdf diff=astextplain 15 | *.PDF diff=astextplain 16 | *.rtf diff=astextplain 17 | *.RTF diff=astextplain 18 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Fall-Detection 2 | Detect humans falling on the ground from a CCTV camera feed and limit the physical damage to the person by alerting the hospital authorities. 3 | 4 | Introduction 5 | ------------ 6 | Elderly people tend to slip and fall in homes and remain unattended for a long time. 7 | If the affected person is not treated immediately, serious health issues including brain injuries occur. 8 | The proposed solution automatically detects humans falling, through cameras installed in homes, and sends notification to family members and hospital authorities. 9 | 10 | Requirements 11 | ------------ 12 | MATLAB R2013a 13 | 14 | Usage 15 | ----- 16 | 17 | ####Installation 18 | 19 | 1. Download zip 20 | 2. Unzip 21 | 3. Open falldetection.m in MATLAB 22 | 23 | ####MATLAB command line 24 | ```matlab 25 | falldetection ; 26 | ``` 27 | ####Example 28 | ```matlab 29 | falldetection video.mp4; 30 | ``` 31 | 32 | Output 33 | ------ 34 | ###Working 35 | [![Working](https://s4.postimg.org/49t4relod/giphy.gif)](https://postimg.org/image/qlqxksks9/) 36 | 37 | ###Original video frame 38 | [![Original video frame](https://s3.postimg.org/esn2yx6eb/original.png)](https://postimg.org/image/5kuui7zbz/) 39 | 40 | ###Human segemented image 41 | [![Human segemented image](https://s3.postimg.org/3m989kdgz/mask.png)](https://postimg.org/image/yt7vdh1db/) 42 | 43 | ###Motion History Image (MHI) 44 | [![Motion History Image](https://s3.postimg.org/vqsn37f1v/mhi.png)](https://postimg.org/image/rhnx11bsf/) 45 | 46 | ###Human shape 47 | [![Human shape](https://s4.postimg.org/576uymvyl/shape.png)](https://postimg.org/image/xk2cp3hop/) 48 | 49 | ###Fall Detected Notification 50 | [![Fall Detected Notification](https://s3.postimg.org/6aagwho5f/fall.jpg)](https://postimg.org/image/tbr228nsv/) 51 | 52 | YouTube Demo Video Link 53 | ------------------ 54 | Demo of the project 55 | 56 | Youtube Video: Human Fall Detection 59 | 60 | Flowchart 61 | --------- 62 | [![Flowchart](https://s4.postimg.org/lfue0o4fh/Page_4_Image_27.png)](https://postimg.org/image/8og7u5und/) 63 | 64 | Note 65 | ---- 66 | * Live transmission from the camera to the software is not supported. Instead, the data from the camera is first stored and then processed. 67 | * The video feed should be saved in '..\Fall-Detection\Video' folder. 68 | * The notification is sent to the user through an app installed on the phone. The apk file is not included in this repository. 69 | 70 | Reference Paper 71 | --------------- 72 | C.Rougier,J.MeunierFall,A.Arnaud and J.Rousseau. Detection from Human Shape and Motion History using Video Surveillance. *Proceedings of the 21st International Conference on Advanced Information Networking and Applications Workshops*,2007. 73 | 74 | License 75 | ------- 76 | [![License](https://s3.postimg.org/5h9joly3n/license.png)](https://postimg.org/image/g43cu168v/) 77 | 78 | 79 | 80 | -------------------------------------------------------------------------------- /calcOrientation.m: -------------------------------------------------------------------------------- 1 | function orientation = calcOrientation(ellipse,noiseYxmin) 2 | 3 | theta = radtodeg(ellipse(5)); 4 | t = linspace(-4,4); 5 | NoiseLevel = 0; 6 | x = ellipse(3) * cos(t); 7 | y = ellipse(4) * sin(t); 8 | nx = x*cos(ellipse(5))-y*sin(ellipse(5)) + ellipse(1) + randn(size(t))*NoiseLevel; 9 | ny = x*sin(ellipse(5))+y*cos(ellipse(5)) + ellipse(2) + randn(size(t))*NoiseLevel; 10 | xminpos = nx == min(nx); 11 | yxmin = ny(xminpos); 12 | rx = max(nx)-ellipse(1); 13 | ry = max(ny)-ellipse(2); 14 | if (yxmin <= ellipse(2)) || ((yxmin <= ellipse(2)+1) && (rx > ry) && ((theta <= noiseYxmin && theta >= 0) || (theta <= (noiseYxmin-90) && theta >= -90))) 15 | if theta >= 0 && theta <= 90 16 | orientation = theta; 17 | elseif theta+90 >= 0 && theta+90 <= 90 18 | orientation = theta+90; 19 | elseif theta+180 >= 0 && theta+180 <= 90 20 | orientation = theta+180; 21 | end 22 | else 23 | if theta >= 90 && theta <= 180 24 | orientation = theta; 25 | elseif theta+90 >= 90 && theta+90 <= 180 26 | orientation = theta+90; 27 | elseif theta+180 >= 90 && theta+180 <= 180 28 | orientation = theta+180; 29 | end 30 | end 31 | end 32 | 33 | 34 | -------------------------------------------------------------------------------- /calcSpeed.m: -------------------------------------------------------------------------------- 1 | function [mhimage,speed] = calcSpeed(mhimage,fgBBox,tmhi) 2 | 3 | %updating motion history image(mhimg) 4 | mhimage = max(zeros(size(mhimage)),mhimage-1); 5 | mhimage(fgBBox==true) = tmhi; 6 | 7 | %co-effecient of mhi for speed 8 | speed = sum(sum(mhimage))/(sum(sum(fgBBox))*tmhi); 9 | 10 | end -------------------------------------------------------------------------------- /coordInsideMask.m: -------------------------------------------------------------------------------- 1 | function [xcoord,ycoord] = coordInsideMask(fgMask,box) 2 | 3 | y1 = box(2);y2 = box(2)+box(4);x1 = box(1);x2 = box(1)+box(3); 4 | if box(2)+box(4)> size(fgMask,1) 5 | y2 = size(fgMask,1); 6 | end 7 | if box(1)+box(3)> size(fgMask,2) 8 | x2 = size(fgMask,2); 9 | end 10 | 11 | 12 | vec = find(fgMask==1); 13 | rowsz = size(fgMask,1); 14 | rows = mod(vec-1,rowsz)+1; 15 | cols = double(((vec-1)/rowsz)+1); 16 | 17 | boxpos = find(cols < x2 & cols > x1 & rows < y2 & rows > y1); 18 | xcoord = cols(boxpos); 19 | ycoord = rows(boxpos); 20 | 21 | -------------------------------------------------------------------------------- /drawEllipse.m: -------------------------------------------------------------------------------- 1 | function drawEllipse(Cx,Cy,Rx,Ry,Rotation) 2 | 3 | % Create an ellipse 4 | t = linspace(-4,4); 5 | 6 | NoiseLevel = 0; 7 | x = Rx * cos(t); 8 | y = Ry * sin(t); 9 | nx = x*cos(Rotation)-y*sin(Rotation) + Cx + randn(size(t))*NoiseLevel; 10 | ny = x*sin(Rotation)+y*cos(Rotation) + Cy + randn(size(t))*NoiseLevel; 11 | 12 | % Show the window 13 | hold on; 14 | plot(nx,ny,'r-'); 15 | plot(Cx,Cy,'go','MarkerSize',2,'LineWidth',2); 16 | hold off; 17 | return 18 | end -------------------------------------------------------------------------------- /falldetection.m: -------------------------------------------------------------------------------- 1 | function [] = falldetection(vidname) 2 | 3 | % finding path where all files in the program are stored 4 | [path,name,ext] = fileparts(mfilename('fullpath')); 5 | 6 | % reading the video 7 | vid = vision.VideoFileReader(sprintf('%s\\videos\\%s',path,vidname)); 8 | 9 | % initializing foreground and blob detectors 10 | detector = vision.ForegroundDetector(... 11 | 'NumTrainingFrames',10,'NumGaussians',5,... 12 | 'MinimumBackgroundRatio', 0.7,'InitialVariance',0.05,... 13 | 'LearningRate',0.0002); 14 | blob = vision.BlobAnalysis(... 15 | 'CentroidOutputPort', true, 'AreaOutputPort', true, ... 16 | 'BoundingBoxOutputPort', true, ... 17 | 'MinimumBlobAreaSource', 'Property', 'MinimumBlobArea', 500); 18 | 19 | %duration of mhi (or) max. value of mhi (or) no of frames taken into acc. for mhi 20 | tmhi = 15; 21 | 22 | %strel parameters 23 | strelType = 'square'; 24 | strelSize = 5; 25 | 26 | %tolerance while find coordinate of y at min. x in counding ellipse 27 | %tolerance for yxmin <= Cy+1 in degrees 28 | noiseYxmin = 3; 29 | 30 | %resize Parameter (fraction of input frame) 31 | resizeFactor = 0.25; 32 | 33 | % Fall Detection Parameters 34 | %threshold for detecting high motion 35 | thresMotion = 1.8; 36 | %threshold speed for concluding fall 37 | thSpeed = 2; 38 | %threshold orientation change for concluding fall 39 | thOrChg = 15; 40 | %threshold area change for concluding fall 41 | thAreaChg = 15; 42 | %no of frames that form a fall sequence 43 | noFrFallSeq = 5; 44 | 45 | %object that contains possible fall sequences 46 | %object contains ->speed , ->noFrames, ->avgOrChg, ->avgAreaChg 47 | %noFrames - no. of frames that have been taken into acc. till now 48 | posFalls = struct([]); 49 | 50 | prevOr = []; 51 | 52 | frameNo = 0; 53 | while ~isDone(vid) 54 | pause(0.0001); 55 | frame = step(vid); 56 | frameNo = frameNo+1; 57 | %resizing original frame 58 | %frame = imresize(frame,resizeFactor); 59 | 60 | %assigning initial value to motion history image 61 | if frameNo == 1 62 | mhimage = zeros(size(frame,1),size(frame,2)); 63 | end 64 | 65 | %detecting foreground mask 66 | fgMask = step(detector,frame); 67 | %modifying mask to close gaps and fill holes 68 | fgClose = modifyMask(fgMask,strelType,strelSize); 69 | 70 | %finding largest blob 71 | [area,centroid,box] = step(blob,fgClose); 72 | pos = find(area==max(area)); 73 | box = box(pos,:); 74 | 75 | speed = [];orientation = [];area = []; 76 | if ~isempty(box) 77 | %fgBBox - the mask after inside bouding box 78 | %removing cordinates outside bounding box 79 | fgBBox = maskInsideBBox(fgClose,box); 80 | [mhimage,speed] = calcSpeed(mhimage,fgBBox,tmhi); 81 | if speed >= thresMotion 82 | posFalls = initializeFallObj(posFalls,size(posFalls,2)+1); 83 | end 84 | 85 | filledCannyMask = logical(edge(fgBBox,'Roberts')); 86 | [xcoord,ycoord] = coordInsideMask(filledCannyMask,box); 87 | ellipse = fitellipse(xcoord,ycoord); 88 | if ~isempty(ellipse) 89 | orientation = calcOrientation(ellipse,noiseYxmin); 90 | area = pi*ellipse(3)*ellipse(4); 91 | 92 | %output 93 | subplot(1,4,1); 94 | imshow(frame); 95 | title(sprintf('Original Video\nFrame no - %d',frameNo),'FontSize',20); 96 | subplot(1,4,2); 97 | imshow(fgMask); 98 | title(sprintf('Human detection\nFrame no - %d',frameNo),'FontSize',20); 99 | subplot(1,4,3); 100 | imshow(uint8((mhimage*255)/tmhi)); 101 | title(sprintf('Motion History Image\nSpeed - %f',speed),'FontSize',20); 102 | subplot(1,4,4); 103 | imshow(filledCannyMask); 104 | drawEllipse(ellipse(1),ellipse(2),ellipse(3),ellipse(4),ellipse(5)); 105 | title(sprintf('Shape of body\nOrientation - %f',orientation),'FontSize',20); 106 | else 107 | %output 108 | subplot(1,4,1); 109 | imshow(frame); 110 | title(sprintf('Original Video\nFrame no - %d',frameNo),'FontSize',20); 111 | subplot(1,4,2); 112 | imshow(fgMask); 113 | title(sprintf('Human detection\nFrame no - %d',frameNo),'FontSize',20); 114 | subplot(1,4,3); 115 | imshow(uint8((mhimage*255)/tmhi)); 116 | title(sprintf('Motion History Image\nSpeed - '),'FontSize',20); 117 | subplot(1,4,4); 118 | imshow(filledCannyMask); 119 | title(sprintf('Shape of body\nOrientation - ')); 120 | end 121 | else 122 | %output 123 | subplot(1,4,1); 124 | imshow(frame); 125 | title(sprintf('Original Video\nFrame no - %d',frameNo),'FontSize',20); 126 | subplot(1,4,2); 127 | imshow(fgMask); 128 | title(sprintf('Human detection\nFrame no - %d',frameNo),'FontSize',20); 129 | subplot(1,4,3); 130 | imshow(uint8((mhimage*255)/tmhi)); 131 | title(sprintf('Motion History Image\nSpeed - '),'FontSize',20); 132 | subplot(1,4,4); 133 | imshow(zeros(size(fgMask))); 134 | title(sprintf('Shape of body\nOrientation - %f',orientation),'FontSize',20); 135 | end 136 | 137 | %no possible fall sequences 138 | if isempty(posFalls) 139 | if ~isempty(orientation) && ~isempty(area) 140 | prevOr = orientation; 141 | prevArea = area; 142 | else 143 | %do not increment last changed frame number 144 | end 145 | continue; 146 | end 147 | 148 | %no object is found in foreground mask 149 | if isempty(speed) || isempty(orientation) || isempty(area) 150 | % speed,orientation change, area change have to assigned a certain 151 | % value 152 | posFalls = struct([]); 153 | %do not increment last changed frame number 154 | continue; 155 | end 156 | 157 | if isempty(prevOr) 158 | orChg = 0; 159 | areaChg = 0; 160 | else 161 | orChg = findOrChg(orientation,prevOr); 162 | areaChg = 20;%have to find it. 163 | end 164 | prevOr = orientation; 165 | prevArea = area; 166 | [fallDetected,posFalls] = updateCheckPosFalls(posFalls,size(posFalls,2),noFrFallSeq,orChg,areaChg,speed,thOrChg,thAreaChg,thSpeed); 167 | if fallDetected == true 168 | 169 | subplot(1,4,1); 170 | imshow(frame); 171 | title(sprintf('Original Video\nFrame no - %d',frameNo),'FontSize',20); 172 | subplot(1,4,2); 173 | imshow(fgMask); 174 | title(sprintf('FALL DETECTED\n'),'FontSize',50); 175 | subplot(1,4,3); 176 | imshow(uint8((mhimage*255)/tmhi)); 177 | title(sprintf('Motion History Image\nSpeed - %f',speed),'FontSize',20); 178 | subplot(1,4,4); 179 | imshow(filledCannyMask); 180 | title(sprintf('Shape of body\nOrientation - %f',orientation),'FontSize',20); 181 | pause(2); 182 | end 183 | end 184 | 185 | % C:\Users\lenovo\Desktop\programs\matlab\FallDetection>"C:\Program Files\MATLAB\R2013a\bin\matlab.exe" -nodisplay -nosplash -nodesktop -r "falldetection video.mp4"; 186 | -------------------------------------------------------------------------------- /findOrChg.m: -------------------------------------------------------------------------------- 1 | function orChg = findOrChg(orientation,prevOr) 2 | 3 | orChg = orientation-prevOr; 4 | if orChg >= 90 5 | orChg = orChg-180; 6 | elseif orChg <= -90 7 | orChg = orChg+180; 8 | end 9 | 10 | end -------------------------------------------------------------------------------- /fitellipse.m: -------------------------------------------------------------------------------- 1 | % 2 | function a = fitellipse(X,Y) 3 | 4 | % FITELLIPSE Least-squares fit of ellipse to 2D points. 5 | % A = FITELLIPSE(X,Y) returns the parameters of the best-fit 6 | % ellipse to 2D points (X,Y). 7 | % The returned vector A contains the center, radii, and orientation 8 | % of the ellipse, stored as (Cx, Cy, Rx, Ry, theta_radians) 9 | % 10 | % Authors: Andrew Fitzgibbon, Maurizio Pilu, Bob Fisher 11 | % Reference: "Direct Least Squares Fitting of Ellipses", IEEE T-PAMI, 1999 12 | % 13 | % @Article{Fitzgibbon99, 14 | % author = "Fitzgibbon, A.~W.and Pilu, M. and Fisher, R.~B.", 15 | % title = "Direct least-squares fitting of ellipses", 16 | % journal = pami, 17 | % year = 1999, 18 | % volume = 21, 19 | % number = 5, 20 | % month = may, 21 | % pages = "476--480" 22 | % } 23 | % 24 | % This is a more bulletproof version than that in the paper, incorporating 25 | % scaling to reduce roundoff error, correction of behaviour when the input 26 | % data are on a perfect hyperbola, and returns the geometric parameters 27 | % of the ellipse, rather than the coefficients of the quadratic form. 28 | % 29 | % Example: Run fitellipse without any arguments to get a demo 30 | if nargin == 0 31 | % Create an ellipse 32 | t = linspace(0,2); 33 | 34 | Rx = 300; 35 | Ry = 200; 36 | Cx = 250; 37 | Cy = 150; 38 | Rotation = .4; % Radians 39 | 40 | NoiseLevel = .5; % Will add Gaussian noise of this std.dev. to points 41 | 42 | x = Rx * cos(t); 43 | y = Ry * sin(t); 44 | nx = x*cos(Rotation)-y*sin(Rotation) + Cx + randn(size(t))*NoiseLevel; 45 | ny = x*sin(Rotation)+y*cos(Rotation) + Cy + randn(size(t))*NoiseLevel; 46 | 47 | % Clear figure 48 | clf 49 | % Draw it 50 | plot(nx,ny,'o'); 51 | % Show the window 52 | figure(gcf) 53 | % Fit it 54 | params = fitellipse(nx,ny); 55 | % Note it may return (Rotation - pi/2) and swapped radii, this is fine. 56 | Given = round([Cx Cy Rx Ry Rotation*180]); 57 | Returned = round(params.*[1 1 1 1 180]); 58 | 59 | % Draw the returned ellipse 60 | t = linspace(0,pi*2); 61 | x = params(3) * cos(t); 62 | y = params(4) * sin(t); 63 | nx = x*cos(params(5))-y*sin(params(5)) + params(1); 64 | ny = x*sin(params(5))+y*cos(params(5)) + params(2); 65 | hold on 66 | plot(nx,ny,'r-') 67 | 68 | return 69 | end 70 | 71 | % normalize data 72 | mx = mean(X); 73 | my = mean(Y); 74 | sx = (max(X)-min(X))/2; 75 | sy = (max(Y)-min(Y))/2; 76 | 77 | x = (X-mx)/sx; 78 | y = (Y-my)/sy; 79 | 80 | % Force to column vectors 81 | x = x(:); 82 | y = y(:); 83 | 84 | % Build design matrix 85 | D = [ x.*x x.*y y.*y x y ones(size(x)) ]; 86 | 87 | % Build scatter matrix 88 | S = D'*D; 89 | 90 | % Build 6x6 constraint matrix 91 | C(6,6) = 0; C(1,3) = -2; C(2,2) = 1; C(3,1) = -2; 92 | 93 | % Solve eigensystem 94 | if 0 95 | % Old way, numerically unstable if not implemented in matlab 96 | [gevec, geval] = eig(S,C); 97 | 98 | % Find the negative eigenvalue 99 | I = find(real(diag(geval)) < 1e-8 & ~isinf(diag(geval))); 100 | 101 | % Extract eigenvector corresponding to negative eigenvalue 102 | A = real(gevec(:,I)); 103 | else 104 | % New way, numerically stabler in C [gevec, geval] = eig(S,C); 105 | 106 | % Break into blocks 107 | tmpA = S(1:3,1:3); 108 | tmpB = S(1:3,4:6); 109 | tmpC = S(4:6,4:6); 110 | tmpD = C(1:3,1:3); 111 | tmpE = inv(tmpC)*tmpB'; 112 | 113 | % Return if tmpE contains nan 114 | if sum(sum(isnan(tmpE))) ~= 0 115 | a = []; 116 | return; 117 | end 118 | [evec_x, eval_x] = eig(inv(tmpD) * (tmpA - tmpB*tmpE)); 119 | 120 | % Find the positive (as det(tmpD) < 0) eigenvalue 121 | I = find(real(diag(eval_x)) < 1e-8 & ~isinf(diag(eval_x))); 122 | 123 | % Extract eigenvector corresponding to negative eigenvalue 124 | A = real(evec_x(:,I)); 125 | 126 | % Recover the bottom half... 127 | evec_y = -tmpE * A; 128 | A = [A; evec_y]; 129 | end 130 | 131 | % unnormalize 132 | par = [ 133 | A(1)*sy*sy, ... 134 | A(2)*sx*sy, ... 135 | A(3)*sx*sx, ... 136 | -2*A(1)*sy*sy*mx - A(2)*sx*sy*my + A(4)*sx*sy*sy, ... 137 | -A(2)*sx*sy*mx - 2*A(3)*sx*sx*my + A(5)*sx*sx*sy, ... 138 | A(1)*sy*sy*mx*mx + A(2)*sx*sy*mx*my + A(3)*sx*sx*my*my ... 139 | - A(4)*sx*sy*sy*mx - A(5)*sx*sx*sy*my ... 140 | + A(6)*sx*sx*sy*sy ... 141 | ]'; 142 | 143 | % Convert to geometric radii, and centers 144 | 145 | thetarad = 0.5*atan2(par(2),par(1) - par(3)); 146 | cost = cos(thetarad); 147 | sint = sin(thetarad); 148 | sin_squared = sint.*sint; 149 | cos_squared = cost.*cost; 150 | cos_sin = sint .* cost; 151 | 152 | Ao = par(6); 153 | Au = par(4) .* cost + par(5) .* sint; 154 | Av = - par(4) .* sint + par(5) .* cost; 155 | Auu = par(1) .* cos_squared + par(3) .* sin_squared + par(2) .* cos_sin; 156 | Avv = par(1) .* sin_squared + par(3) .* cos_squared - par(2) .* cos_sin; 157 | 158 | % ROTATED = [Ao Au Av Auu Avv] 159 | 160 | tuCentre = - Au./(2.*Auu); 161 | tvCentre = - Av./(2.*Avv); 162 | wCentre = Ao - Auu.*tuCentre.*tuCentre - Avv.*tvCentre.*tvCentre; 163 | 164 | uCentre = tuCentre .* cost - tvCentre .* sint; 165 | vCentre = tuCentre .* sint + tvCentre .* cost; 166 | 167 | Ru = -wCentre./Auu; 168 | Rv = -wCentre./Avv; 169 | 170 | Ru = sqrt(abs(Ru)).*sign(Ru); 171 | Rv = sqrt(abs(Rv)).*sign(Rv); 172 | 173 | a = [uCentre, vCentre, Ru, Rv, thetarad]; -------------------------------------------------------------------------------- /images/flowchart.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/harishrithish7/Fall-Detection/a7f7d59cd2220aed3cb110ed075523fcfd8a1c9c/images/flowchart.png -------------------------------------------------------------------------------- /images/mask.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/harishrithish7/Fall-Detection/a7f7d59cd2220aed3cb110ed075523fcfd8a1c9c/images/mask.png -------------------------------------------------------------------------------- /images/mhi.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/harishrithish7/Fall-Detection/a7f7d59cd2220aed3cb110ed075523fcfd8a1c9c/images/mhi.png -------------------------------------------------------------------------------- /images/original.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/harishrithish7/Fall-Detection/a7f7d59cd2220aed3cb110ed075523fcfd8a1c9c/images/original.png -------------------------------------------------------------------------------- /images/shape.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/harishrithish7/Fall-Detection/a7f7d59cd2220aed3cb110ed075523fcfd8a1c9c/images/shape.png -------------------------------------------------------------------------------- /initializeFallObj.m: -------------------------------------------------------------------------------- 1 | function posFalls = initializeFallObj(posFalls,noPosFalls) 2 | posFalls(noPosFalls).noFrames = 0; 3 | posFalls(noPosFalls).avgOrChg = 0; 4 | posFalls(noPosFalls).avgAreaChg = 0; 5 | posFalls(noPosFalls).speed = 0; 6 | end -------------------------------------------------------------------------------- /license.md: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Patents. 472 | 473 | A "contributor" is a copyright holder who authorizes use under this 474 | License of the Program or a work on which the Program is based. The 475 | work thus licensed is called the contributor's "contributor version". 476 | 477 | A contributor's "essential patent claims" are all patent claims 478 | owned or controlled by the contributor, whether already acquired or 479 | hereafter acquired, that would be infringed by some manner, permitted 480 | by this License, of making, using, or selling its contributor version, 481 | but do not include claims that would be infringed only as a 482 | consequence of further modification of the contributor version. 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You may not convey a covered 525 | work if you are a party to an arrangement with a third party that is 526 | in the business of distributing software, under which you make payment 527 | to the third party based on the extent of your activity of conveying 528 | the work, and under which the third party grants, to any of the 529 | parties who would receive the covered work from you, a discriminatory 530 | patent license (a) in connection with copies of the covered work 531 | conveyed by you (or copies made from those copies), or (b) primarily 532 | for and in connection with specific products or compilations that 533 | contain the covered work, unless you entered into that arrangement, 534 | or that patent license was granted, prior to 28 March 2007. 535 | 536 | Nothing in this License shall be construed as excluding or limiting 537 | any implied license or other defenses to infringement that may 538 | otherwise be available to you under applicable patent law. 539 | 540 | 12. No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /maskInsideBBox.m: -------------------------------------------------------------------------------- 1 | function fgMask = maskInsideBBox(fgMask,box) 2 | fgMask(:,1:box(1)-1) = 0; 3 | fgMask(:,box(1)+box(3)+1:end) = 0; 4 | fgMask(1:box(2)-1,:) = 0; 5 | fgMask(box(2)+box(4)+1:end,:) = 0; 6 | end -------------------------------------------------------------------------------- /modifyMask.m: -------------------------------------------------------------------------------- 1 | function fgClose = modifyMask(fgMask,strelType,strelSize) 2 | 3 | %finding foregorund mask, filling holes and closing gaps 4 | 5 | fgFill = imfill(fgMask,'holes'); 6 | fgClose = imclose(fgFill,strel(strelType,strelSize)); 7 | 8 | end -------------------------------------------------------------------------------- /updateCheckPosFalls.m: -------------------------------------------------------------------------------- 1 | function [fallDetected,posFalls] = updateCheckPosFalls(posFalls,noPosFalls,noFrFallSeq,orChg,areaChg,speed,thOrChg,thAreaChg,thSpeed) 2 | nxtPosFallNo = 0; 3 | nxtPosFalls = struct([]); 4 | fallDetected = false; 5 | for posFallInd=1:noPosFalls 6 | posFalls(posFallInd).avgOrChg = ((posFalls(posFallInd).avgOrChg*posFalls(posFallInd).noFrames)+orChg)... 7 | /(posFalls(posFallInd).noFrames+1); 8 | posFalls(posFallInd).avgAreaChg = ((posFalls(posFallInd).avgAreaChg*posFalls(posFallInd).noFrames)+areaChg)... 9 | /(posFalls(posFallInd).noFrames+1); 10 | posFalls(posFallInd).speed = ((posFalls(posFallInd).speed*posFalls(posFallInd).noFrames)+speed)... 11 | /(posFalls(posFallInd).noFrames+1); 12 | posFalls(posFallInd).noFrames = posFalls(posFallInd).noFrames+1; 13 | 14 | if posFalls(posFallInd).noFrames == noFrFallSeq 15 | %check if fall is detected or not 16 | if ((abs(posFalls(posFallInd).avgOrChg) >= thOrChg && ... 17 | abs(posFalls(posFallInd).avgAreaChg) >= thAreaChg) && posFalls(posFallInd).speed >= thSpeed) 18 | %send notification 19 | fallDetected = true; 20 | sprintf('Fall Detected') 21 | %making next possible falls empty 22 | nxtPosFalls = struct([]); 23 | nxtPosFallNo = 0; 24 | break; 25 | end 26 | else 27 | nxtPosFallNo = nxtPosFallNo+1; 28 | if isempty(nxtPosFalls) 29 | nxtPosFalls = posFalls(posFallInd); 30 | else 31 | nxtPosFalls(nxtPosFallNo) = posFalls(posFallInd); 32 | end 33 | end 34 | end 35 | 36 | posFalls = nxtPosFalls; 37 | end -------------------------------------------------------------------------------- /videos/video.mp4: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/harishrithish7/Fall-Detection/a7f7d59cd2220aed3cb110ed075523fcfd8a1c9c/videos/video.mp4 --------------------------------------------------------------------------------