├── .editorconfig ├── .gitignore ├── .vscode ├── c_cpp_properties.json ├── launch.json ├── settings.json └── tasks.json ├── CITATION.cff ├── CMakeLists.txt ├── LICENSE ├── README.md ├── build_benchmark.sh ├── build_debug.sh ├── build_release.sh └── src ├── inference.cpp ├── person_detector.cpp └── person_detector.hpp /.editorconfig: -------------------------------------------------------------------------------- 1 | [*] 2 | cpp_indent_braces=false 3 | cpp_indent_multi_line_relative_to=innermost_parenthesis 4 | cpp_indent_within_parentheses=indent 5 | cpp_indent_preserve_within_parentheses=false 6 | cpp_indent_case_labels=false 7 | cpp_indent_case_contents=true 8 | cpp_indent_case_contents_when_block=false 9 | cpp_indent_lambda_braces_when_parameter=true 10 | cpp_indent_goto_labels=one_left 11 | cpp_indent_preprocessor=leftmost_column 12 | cpp_indent_access_specifiers=false 13 | cpp_indent_namespace_contents=true 14 | cpp_indent_preserve_comments=false 15 | cpp_new_line_before_open_brace_namespace=ignore 16 | cpp_new_line_before_open_brace_type=ignore 17 | cpp_new_line_before_open_brace_function=ignore 18 | cpp_new_line_before_open_brace_block=ignore 19 | cpp_new_line_before_open_brace_lambda=ignore 20 | cpp_new_line_scope_braces_on_separate_lines=false 21 | cpp_new_line_close_brace_same_line_empty_type=false 22 | cpp_new_line_close_brace_same_line_empty_function=false 23 | cpp_new_line_before_catch=true 24 | cpp_new_line_before_else=true 25 | cpp_new_line_before_while_in_do_while=false 26 | cpp_space_before_function_open_parenthesis=remove 27 | cpp_space_within_parameter_list_parentheses=false 28 | cpp_space_between_empty_parameter_list_parentheses=false 29 | cpp_space_after_keywords_in_control_flow_statements=true 30 | cpp_space_within_control_flow_statement_parentheses=false 31 | cpp_space_before_lambda_open_parenthesis=false 32 | cpp_space_within_cast_parentheses=false 33 | cpp_space_after_cast_close_parenthesis=false 34 | cpp_space_within_expression_parentheses=false 35 | cpp_space_before_block_open_brace=true 36 | cpp_space_between_empty_braces=false 37 | cpp_space_before_initializer_list_open_brace=false 38 | cpp_space_within_initializer_list_braces=true 39 | cpp_space_preserve_in_initializer_list=true 40 | cpp_space_before_open_square_bracket=false 41 | cpp_space_within_square_brackets=false 42 | cpp_space_before_empty_square_brackets=false 43 | cpp_space_between_empty_square_brackets=false 44 | cpp_space_group_square_brackets=true 45 | cpp_space_within_lambda_brackets=false 46 | cpp_space_between_empty_lambda_brackets=false 47 | cpp_space_before_comma=false 48 | cpp_space_after_comma=true 49 | cpp_space_remove_around_member_operators=true 50 | cpp_space_before_inheritance_colon=true 51 | cpp_space_before_constructor_colon=true 52 | cpp_space_remove_before_semicolon=true 53 | cpp_space_after_semicolon=false 54 | cpp_space_remove_around_unary_operator=true 55 | cpp_space_around_binary_operator=insert 56 | cpp_space_around_assignment_operator=insert 57 | cpp_space_pointer_reference_alignment=left 58 | cpp_space_around_ternary_operator=insert 59 | cpp_wrap_preserve_blocks=one_liners 60 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Prerequisites 2 | *.d 3 | 4 | # Compiled Object files 5 | *.slo 6 | *.lo 7 | *.o 8 | *.obj 9 | 10 | # Precompiled Headers 11 | *.gch 12 | *.pch 13 | 14 | # Compiled Dynamic libraries 15 | *.so 16 | *.dylib 17 | *.dll 18 | 19 | # Fortran module files 20 | *.mod 21 | *.smod 22 | 23 | # Compiled Static libraries 24 | *.lai 25 | *.la 26 | *.a 27 | *.lib 28 | 29 | # Executables 30 | *.exe 31 | *.out 32 | *.app 33 | 34 | # Build directory 35 | /build/ 36 | 37 | # CMake generated files 38 | CMakeFiles/ 39 | CMakeCache.txt 40 | cmake_install.cmake 41 | Makefile 42 | 43 | # Compiled object files, libraries, and executables 44 | *.slo 45 | *.lo 46 | *.o 47 | *.obj 48 | *.so 49 | *.dylib 50 | *.dll 51 | *.exe 52 | 53 | # .vscode/ 54 | .idea/ 55 | *.user 56 | 57 | # models are here 58 | public/ 59 | 60 | .env 61 | .DS_Store -------------------------------------------------------------------------------- /.vscode/c_cpp_properties.json: -------------------------------------------------------------------------------- 1 | { 2 | "configurations": [ 3 | { 4 | "name": "Mac", 5 | "includePath": [ 6 | "${workspaceFolder}/**", 7 | "/usr/local/include", 8 | "/opt/homebrew/Cellar/opencv/4.10.0_4/include/opencv4", 9 | "/opt/homebrew/Cellar/openvino/2024.3.0/include" 10 | ], 11 | "defines": [], 12 | "macFrameworkPath": [ 13 | "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks" 14 | ], 15 | "cStandard": "c17", 16 | "cppStandard": "c++20", 17 | "intelliSenseMode": "macos-clang-arm64" 18 | }, 19 | { 20 | "name": "Debian", 21 | "includePath": [ 22 | "${workspaceFolder}/**", 23 | "/usr/include", 24 | "/usr/local/include", 25 | "/usr/include/opencv4", 26 | "/opt/intel/openvino_2023/runtime/include" 27 | ], 28 | "defines": [], 29 | "cStandard": "c17", 30 | "cppStandard": "c++20", 31 | "intelliSenseMode": "linux-gcc-x64", 32 | "compilerPath": "/usr/bin/g++" 33 | } 34 | ], 35 | "version": 4 36 | } 37 | -------------------------------------------------------------------------------- /.vscode/launch.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "0.2.0", 3 | "configurations": [ 4 | { 5 | "name": "Debug yolov3-tiny-openvino", 6 | "type": "lldb", 7 | "request": "launch", 8 | "program": "${workspaceFolder}/build/yolov3-tiny-openvino", 9 | "args": [ 10 | "/Users/jedrzej/Documents/code/yolov3-tiny-openvino/public/yolo-v3-tiny-onnx/tiny-yolov3-11.onnx", 11 | "/Users/jedrzej/Downloads/yolov3-test-image.jpg" 12 | ], 13 | "cwd": "${workspaceFolder}/build", 14 | "preLaunchTask": "CMake Build", 15 | "env": { 16 | "DYLD_LIBRARY_PATH": "/opt/homebrew/Cellar/opencv/4.10.0_4/lib:/opt/homebrew/Cellar/openvino/2024.3.0/lib:${env:DYLD_LIBRARY_PATH}" 17 | }, 18 | "console": "integratedTerminal" 19 | } 20 | ] 21 | } 22 | -------------------------------------------------------------------------------- /.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "files.associations": { 3 | "__bit_reference": "cpp", 4 | "__config": "cpp", 5 | "__hash_table": "cpp", 6 | "__locale": "cpp", 7 | "__node_handle": "cpp", 8 | "__split_buffer": "cpp", 9 | "__threading_support": "cpp", 10 | "__verbose_abort": "cpp", 11 | "array": "cpp", 12 | "bitset": "cpp", 13 | "cctype": "cpp", 14 | "charconv": "cpp", 15 | "clocale": "cpp", 16 | "cmath": "cpp", 17 | "complex": "cpp", 18 | "condition_variable": "cpp", 19 | "cstdarg": "cpp", 20 | "cstddef": "cpp", 21 | "cstdint": "cpp", 22 | "cstdio": "cpp", 23 | "cstdlib": "cpp", 24 | "cstring": "cpp", 25 | "ctime": "cpp", 26 | "cwchar": "cpp", 27 | "cwctype": "cpp", 28 | "deque": "cpp", 29 | "execution": "cpp", 30 | "initializer_list": "cpp", 31 | "iomanip": "cpp", 32 | "ios": "cpp", 33 | "iosfwd": "cpp", 34 | "iostream": "cpp", 35 | "istream": "cpp", 36 | "limits": "cpp", 37 | "locale": "cpp", 38 | "mutex": "cpp", 39 | "new": "cpp", 40 | "numbers": "cpp", 41 | "optional": "cpp", 42 | "ostream": "cpp", 43 | "queue": "cpp", 44 | "ratio": "cpp", 45 | "semaphore": "cpp", 46 | "span": "cpp", 47 | "sstream": "cpp", 48 | "stack": "cpp", 49 | "stdexcept": "cpp", 50 | "streambuf": "cpp", 51 | "string": "cpp", 52 | "string_view": "cpp", 53 | "tuple": "cpp", 54 | "typeinfo": "cpp", 55 | "unordered_map": "cpp", 56 | "variant": "cpp", 57 | "vector": "cpp", 58 | "atomic": "cpp", 59 | "bit": "cpp", 60 | "*.tcc": "cpp", 61 | "compare": "cpp", 62 | "concepts": "cpp", 63 | "exception": "cpp", 64 | "algorithm": "cpp", 65 | "iterator": "cpp", 66 | "memory": "cpp", 67 | "memory_resource": "cpp", 68 | "random": "cpp", 69 | "system_error": "cpp", 70 | "type_traits": "cpp", 71 | "utility": "cpp", 72 | "format": "cpp", 73 | "text_encoding": "cpp", 74 | "__tree": "cpp", 75 | "list": "cpp", 76 | "map": "cpp", 77 | "set": "cpp", 78 | "unordered_set": "cpp", 79 | "codecvt": "cpp", 80 | "fstream": "cpp", 81 | "typeindex": "cpp", 82 | "functional": "cpp", 83 | "chrono": "cpp" 84 | } 85 | } 86 | -------------------------------------------------------------------------------- /.vscode/tasks.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "2.0.0", 3 | "tasks": [ 4 | { 5 | "type": "shell", 6 | "label": "CMake Configure", 7 | "command": "cmake", 8 | "args": ["-B", "${workspaceFolder}/build", "-DCMAKE_BUILD_TYPE=Debug"], 9 | "options": { 10 | "cwd": "${workspaceFolder}" 11 | }, 12 | "problemMatcher": ["$gcc"], 13 | "detail": "CMake configure task" 14 | }, 15 | { 16 | "type": "shell", 17 | "label": "CMake Build", 18 | "command": "cmake", 19 | "args": [ 20 | "--build", 21 | "${workspaceFolder}/build", 22 | "--config", 23 | "Debug", 24 | "--", 25 | "-j4" 26 | ], 27 | "options": { 28 | "cwd": "${workspaceFolder}" 29 | }, 30 | "problemMatcher": ["$gcc"], 31 | "group": { 32 | "kind": "build", 33 | "isDefault": true 34 | }, 35 | "detail": "CMake template build task" 36 | }, 37 | { 38 | "type": "shell", 39 | "label": "Run executable", 40 | "command": "${workspaceFolder}/build/yolov3-tiny-openvino", 41 | "options": { 42 | "cwd": "${workspaceFolder}/build" 43 | }, 44 | "problemMatcher": [], 45 | "detail": "Run the built executable" 46 | } 47 | ] 48 | } 49 | -------------------------------------------------------------------------------- /CITATION.cff: -------------------------------------------------------------------------------- 1 | cff-version: 1.2.0 2 | message: "If you use this software in your research, please cite it as below." 3 | authors: 4 | - family-names: "Maczan" 5 | given-names: "Jędrzej Paweł" 6 | orcid: "https://orcid.org/0000-0003-1741-6064" 7 | title: "yolov3-tiny-openvino - High performance human detector" 8 | date-released: 2024-08-07 9 | url: "https://github.com/jmaczan/yolov3-tiny-openvino" 10 | -------------------------------------------------------------------------------- /CMakeLists.txt: -------------------------------------------------------------------------------- 1 | cmake_minimum_required(VERSION 3.10) 2 | project(yolov3-tiny-openvino) 3 | 4 | if(NOT CMAKE_BUILD_TYPE) 5 | set(CMAKE_BUILD_TYPE Debug) 6 | endif() 7 | 8 | message(STATUS "Build type: ${CMAKE_BUILD_TYPE}") 9 | 10 | find_program(CCACHE_PROGRAM ccache) 11 | if(CCACHE_PROGRAM) 12 | set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}") 13 | endif() 14 | 15 | set(CMAKE_CXX_STANDARD 20) 16 | set(CMAKE_CXX_STANDARD_REQUIRED ON) 17 | 18 | 19 | # Set optimization flags 20 | if(APPLE) 21 | execute_process(COMMAND sysctl -n machdep.cpu.brand_string 22 | OUTPUT_VARIABLE CPU_BRAND 23 | OUTPUT_STRIP_TRAILING_WHITESPACE) 24 | if(CPU_BRAND MATCHES "Apple M([0-9]+)") 25 | string(REGEX REPLACE ".*Apple M([0-9]+).*" "\\1" APPLE_SILICON_GEN "${CPU_BRAND}") 26 | set(ARCH_FLAGS "-mcpu=apple-m${APPLE_SILICON_GEN}") 27 | message(STATUS "Detected Apple Silicon M${APPLE_SILICON_GEN}") 28 | else() 29 | set(ARCH_FLAGS "-march=native -mtune=native") 30 | endif() 31 | elseif(UNIX AND NOT APPLE) 32 | set(ARCH_FLAGS "-march=native -mtune=native") 33 | elseif(WIN32) 34 | message(STATUS "Detected Windows") 35 | set(ARCH_FLAGS "") # TODO 36 | else() 37 | message(STATUS "Unknown operating system") 38 | set(ARCH_FLAGS "-march=native -mtune=native") 39 | endif() 40 | 41 | 42 | # For Debug 43 | set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g") 44 | add_compile_definitions($<$:DEBUG_BUILD>) 45 | 46 | # For Benchmark 47 | set(CMAKE_CXX_FLAGS_BENCHMARK "-O3 -DNDEBUG -DBENCHMARK_BUILD ${ARCH_FLAGS}") 48 | 49 | # For Release 50 | set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -DNDEBUG ${ARCH_FLAGS}") 51 | 52 | 53 | # OpenVINO 54 | if(APPLE) 55 | set(OpenVINO_DIR "/opt/homebrew/Cellar/openvino/2024.3.0/lib/cmake") 56 | elseif(UNIX AND NOT APPLE) 57 | set(OpenVINO_DIR "/opt/intel/openvino_2023.3.0/runtime/cmake") 58 | endif() 59 | 60 | find_package(OpenVINO REQUIRED) 61 | 62 | 63 | # OpenCV 64 | find_package(OpenCV REQUIRED) 65 | include_directories(${OpenCV_INCLUDE_DIRS}) 66 | 67 | if(APPLE) 68 | include_directories(${OpenVINO_INCLUDE_DIRS}) 69 | elseif(UNIX AND NOT APPLE) 70 | include_directories("/usr/local/include/opencv4") 71 | endif() 72 | 73 | 74 | add_executable(yolov3-tiny-openvino src/inference.cpp src/person_detector.cpp) 75 | 76 | target_link_libraries(yolov3-tiny-openvino PRIVATE openvino::runtime ${OpenCV_LIBS}) 77 | 78 | file(COPY ${CMAKE_SOURCE_DIR}/src/person_detector.hpp DESTINATION ${CMAKE_BINARY_DIR}) -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC 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But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # yolov3-tiny-openvino 2 | 3 | High performance human detector using YOLOv3-tiny with OpenVINO and OpenCV in C++ 4 | 5 | ## Build 6 | 7 | ```sh 8 | chmod +x build_release.sh 9 | ./build_release.sh 10 | ``` 11 | 12 | Output path is `build/yolov3-tiny-openvino` 13 | 14 | ## Run 15 | 16 | Download onnx model from here https://docs.openvino.ai/2022.3/omz_models_model_yolo_v3_tiny_onnx.html 17 | 18 | ```sh 19 | cd build && ./yolov3-tiny-openvino [compile_target] 20 | ``` 21 | 22 | ## Performance 23 | 24 | Lenovo ThinkPad x230 8GB, Debian 12, 6.1.0-23-amd64: 25 | 26 | - Detection: 0.32s 27 | 28 | Macbook Air M2 16GB, macOS 14.6.1: 29 | 30 | - Detection: 0.15s 31 | 32 | ### Useful resources 33 | 34 | - https://docs.openvino.ai/2024/learn-openvino/openvino-samples/hello-nv12-input-classification.html 35 | - https://docs.openvino.ai/2022.3/omz_models_model_yolo_v3_tiny_onnx.html 36 | - https://docs.opencv.org/4.x/d3/d63/classcv_1_1Mat.html 37 | - https://docs.openvino.ai/2024/api/c_cpp_api/group__ov__runtime__cpp__api.html#_CPPv4N2ov6TensorE 38 | - https://docs.openvino.ai/2024/openvino-workflow/running-inference/integrate-openvino-with-your-application.html 39 | - https://github.com/openvinotoolkit/open_model_zoo/blob/master/models/public/yolo-v3-tiny-onnx/README.md 40 | 41 | 42 | ## Cite 43 | If you use this software in your research, please use the following citation: 44 | 45 | ```bibtex 46 | @software{Maczan_yolov3tinyopenvino_2024, 47 | author = {Maczan, Jędrzej Paweł}, 48 | title = {{yolov3-tiny-openvino - High performance human detector}}, 49 | url = {https://github.com/jmaczan/yolov3-tiny-openvino}, 50 | year = {2024}, 51 | publisher = {GitHub} 52 | } 53 | ``` 54 | 55 | 56 | ### License 57 | 58 | GPL-3.0 license 59 | 60 | Jędrzej Maczan, 2024 61 | -------------------------------------------------------------------------------- /build_benchmark.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | mkdir -p build && cd build 3 | cmake .. -DCMAKE_BUILD_TYPE=Benchmark 4 | cmake --build . --config Benchmark -------------------------------------------------------------------------------- /build_debug.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | mkdir -p build && cd build 3 | cmake .. -DCMAKE_BUILD_TYPE=Debug 4 | cmake --build . --config Debug -------------------------------------------------------------------------------- /build_release.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | mkdir -p build && cd build 3 | cmake .. -DCMAKE_BUILD_TYPE=Release 4 | cmake --build . --config Release -------------------------------------------------------------------------------- /src/inference.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include "person_detector.hpp" 3 | #if defined(DEBUG_BUILD) || defined(BENCHMARK_BUILD) 4 | #include 5 | #endif 6 | #ifdef BENCHMARK_BUILD 7 | #include 8 | #endif 9 | 10 | int main(int argc, char* argv[]) 11 | { 12 | if (argc < 3) 13 | { 14 | std::cerr << "Usage: " << argv[0] << " [compile_target]" << std::endl; 15 | std::exit(EXIT_FAILURE); 16 | } 17 | 18 | const std::string model_path{ argv[1] }; 19 | const std::string image_path{ argv[2] }; 20 | const std::string compile_target{ argc == 4 ? argv[3] : "AUTO" }; 21 | 22 | person_detector::PersonDetector detector = person_detector::PersonDetector(model_path, compile_target); 23 | 24 | #ifdef DEBUG_BUILD 25 | auto start_timer = std::chrono::high_resolution_clock::now(); 26 | #endif 27 | 28 | #ifdef BENCHMARK_BUILD 29 | std::vector execution_times; 30 | const int iterations = 100; 31 | for (int i = 0; i < iterations; ++i) { 32 | auto start_timer = std::chrono::high_resolution_clock::now(); 33 | #endif 34 | detector.detect(image_path); 35 | #ifdef BENCHMARK_BUILD 36 | auto end_timer = std::chrono::high_resolution_clock::now(); 37 | std::chrono::duration duration = end_timer - start_timer; 38 | execution_times.push_back(duration.count()); 39 | } 40 | double max_time = *std::max_element(execution_times.begin(), execution_times.end()); 41 | double min_time = *std::min_element(execution_times.begin(), execution_times.end()); 42 | double median_time = execution_times[iterations / 2]; // ofc needs a sorted vector 43 | double average_time = std::accumulate(execution_times.begin(), execution_times.end(), 0.0) / iterations; 44 | std::cout << "Execution time statistics (ms)" << " over " << iterations << " iterations:" << std::endl; 45 | std::cout << " Min: " << min_time << std::endl; 46 | std::cout << " Max: " << max_time << std::endl; 47 | std::cout << " Median: " << median_time << std::endl; 48 | std::cout << " Average: " << average_time << std::endl; 49 | #endif 50 | #ifdef DEBUG_BUILD 51 | auto end_timer = std::chrono::high_resolution_clock::now(); 52 | std::cout << "It took " << std::chrono::duration_cast>(end_timer - start_timer) << " seconds to run detection on an image" << std::endl; 53 | #endif 54 | } -------------------------------------------------------------------------------- /src/person_detector.cpp: -------------------------------------------------------------------------------- 1 | #include "person_detector.hpp" 2 | #include 3 | #include 4 | #include 5 | #include 6 | 7 | constexpr float CONFIDENCE_THRESHOLD = 0.5; 8 | constexpr int PERSON_CLASS_ID = 0; 9 | constexpr int YOLO_INPUT_DIMENSIONS = 416; 10 | constexpr int YOLO_INPUT_DIMENSIONS_SQUARE = YOLO_INPUT_DIMENSIONS * YOLO_INPUT_DIMENSIONS; 11 | constexpr int YOLO_INPUT_CHANNELS = 3; 12 | constexpr size_t YOLO_INPUT_CHANNELS_SIZE_T = 3; 13 | constexpr size_t YOLO_INPUT_DIMENSIONS_SIZE_T = 416; 14 | constexpr float SCALE_FACTOR = 1.0f / 255.0f; 15 | const ov::Tensor image_shape_tensor = ov::Tensor(ov::element::f32, { 1, 2 }, std::vector{YOLO_INPUT_DIMENSIONS_SIZE_T, YOLO_INPUT_CHANNELS_SIZE_T}.data()); 16 | 17 | namespace person_detector { 18 | PersonDetector::PersonDetector(const std::string& model_path, const std::string& compile_target) : core_(), compile_target_(compile_target) { 19 | try { 20 | model_ = core_.read_model(model_path); 21 | compiled_model_ = core_.compile_model(model_, compile_target, { 22 | ov::hint::performance_mode(ov::hint::PerformanceMode::LATENCY), 23 | }); 24 | infer_request_ = compiled_model_.create_infer_request(); 25 | } 26 | catch (const std::exception& e) { 27 | throw std::runtime_error("Error initializing PersonDetector: " + std::string(e.what())); 28 | } 29 | } 30 | 31 | void PersonDetector::detect(const std::string& image_path) { 32 | try { 33 | input_tensor_ = preprocess_input(image_path); 34 | infer_request_.set_tensor("input_1", input_tensor_); 35 | infer_request_.set_tensor("image_shape", image_shape_tensor); 36 | 37 | infer_request_.start_async(); 38 | infer_request_.wait(); 39 | 40 | process_outputs(); 41 | } 42 | catch (const std::exception& e) { 43 | throw std::runtime_error("Error with detection: " + std::string(e.what())); 44 | } 45 | } 46 | 47 | ov::Tensor PersonDetector::preprocess_input(const std::string& image_path) const { 48 | static cv::Mat resized_image(YOLO_INPUT_DIMENSIONS, YOLO_INPUT_DIMENSIONS, CV_8UC3); 49 | static std::vector raw_input_image(YOLO_INPUT_DIMENSIONS_SQUARE * YOLO_INPUT_CHANNELS); // RGB 50 | 51 | cv::Mat image = cv::imread(image_path, cv::IMREAD_COLOR); // BGR 52 | 53 | if (image.empty()) { 54 | throw std::runtime_error("Can't read image from " + image_path); 55 | } 56 | 57 | cv::resize(image, resized_image, resized_image.size(), 0, 0, cv::INTER_LINEAR); 58 | 59 | cv::parallel_for_(cv::Range(0, YOLO_INPUT_DIMENSIONS), [&](const cv::Range& range) { 60 | for (int r = range.start; r < range.end; ++r) { 61 | for (int c = 0; c < YOLO_INPUT_DIMENSIONS; ++c) { 62 | const cv::Vec3b& pixel = resized_image.at(r, c); 63 | int idx = r * YOLO_INPUT_DIMENSIONS + c; 64 | raw_input_image[idx] = pixel[2] * SCALE_FACTOR; 65 | raw_input_image[idx + YOLO_INPUT_DIMENSIONS_SQUARE] = pixel[1] * SCALE_FACTOR; 66 | raw_input_image[idx + 2 * YOLO_INPUT_DIMENSIONS_SQUARE] = pixel[0] * SCALE_FACTOR; 67 | } 68 | } 69 | }); 70 | 71 | return ov::Tensor(ov::element::f32, { 1, YOLO_INPUT_CHANNELS_SIZE_T, YOLO_INPUT_DIMENSIONS_SIZE_T, YOLO_INPUT_DIMENSIONS_SIZE_T }, raw_input_image.data()); 72 | } 73 | 74 | void PersonDetector::process_outputs() { 75 | boxes_tensor_ = infer_request_.get_tensor("yolonms_layer_1"); 76 | scores_tensor_ = infer_request_.get_tensor("yolonms_layer_1:1"); 77 | indices_tensor_ = infer_request_.get_tensor("yolonms_layer_1:2"); 78 | 79 | const float* scores_data = scores_tensor_.data(); 80 | const int32_t* indices_data = indices_tensor_.data(); 81 | 82 | size_t num_candidates = boxes_tensor_.get_shape()[1]; 83 | size_t num_detections = indices_tensor_.get_shape()[1]; 84 | 85 | bool person_detected = false; 86 | 87 | for (size_t i = 0; i < num_detections; ++i) { 88 | int class_idx = indices_data[i * 3 + 1]; 89 | int box_idx = indices_data[i * 3 + 2]; 90 | 91 | if (class_idx == PERSON_CLASS_ID) { 92 | float confidence = scores_data[class_idx * num_candidates + box_idx]; 93 | std::cout << "Confidence: " << confidence << std::endl; 94 | if (confidence > CONFIDENCE_THRESHOLD) { 95 | std::cout << "Person detected" << std::endl; 96 | person_detected = true; 97 | return; 98 | } 99 | } 100 | } 101 | 102 | std::cout << "No person detected" << std::endl; 103 | } 104 | } -------------------------------------------------------------------------------- /src/person_detector.hpp: -------------------------------------------------------------------------------- 1 | #ifndef PERSON_DETECTOR_HPP 2 | #define PERSON_DETECTOR_HPP 3 | 4 | #include 5 | #include 6 | 7 | namespace person_detector { 8 | 9 | class PersonDetector { 10 | public: 11 | PersonDetector(const std::string& model_path, const std::string& compile_target = "AUTO"); 12 | void detect(const std::string& image_path); 13 | 14 | private: 15 | ov::Core core_; 16 | std::shared_ptr model_; 17 | ov::CompiledModel compiled_model_; 18 | ov::InferRequest infer_request_; 19 | std::string compile_target_; 20 | 21 | ov::Tensor input_tensor_; 22 | ov::Tensor boxes_tensor_; 23 | ov::Tensor scores_tensor_; 24 | ov::Tensor indices_tensor_; 25 | 26 | ov::Tensor preprocess_input(const std::string& image_path) const; 27 | void process_outputs(); 28 | }; 29 | 30 | } 31 | 32 | #endif --------------------------------------------------------------------------------