1

Reviewed-on: #3

README.md

@@ -75,4 +75,7 @@ make -j$(nproc)
 1. 检查相机是否正确连接
 2. 确认MindVision相机驱动是否正确安装
 3. 验证相机ID是否正确
-4. 检查权限（可能需要将用户添加到video组）
+4. 检查权限（可能需要将用户添加到video组）
+
+## MindVision-SDK
+`Linux`: >**wget https://www.mindvision.com.cn/wp-content/uploads/2023/08/linuxSDK_V2.1.0.37.tar.gz**

inc/ArmorDetector.h

@@ -23,6 +23,23 @@ struct ArmorPlate {
     double confidence;
     std::pair<LightBar, LightBar> pair;
     std::vector<cv::Point2f> corners_2d;  // Can be computed later for 3D pose
+
+    // Function to get bounding rectangle of the armor plate
+    cv::Rect2d getBoundingRect() const {
+        if (corners_2d.size() >= 4) {
+            cv::Point2f min_pt = corners_2d[0];
+            cv::Point2f max_pt = corners_2d[0];
+            for (const auto& pt : corners_2d) {
+                min_pt.x = std::min(min_pt.x, pt.x);
+                min_pt.y = std::min(min_pt.y, pt.y);
+                max_pt.x = std::max(max_pt.x, pt.x);
+                max_pt.y = std::max(max_pt.y, pt.y);
+            }
+            return cv::Rect2d(min_pt.x, min_pt.y, max_pt.x - min_pt.x, max_pt.y - min_pt.y);
+        }
+        // Fallback: use center and a fixed size
+        return cv::Rect2d(center.x - 30, center.y - 15, 60, 30);
+    }
 };
 
 class ArmorDetector {

inc/MindVisionCamera.h

@@ -12,13 +12,15 @@ extern "C" {
 
 class MindVisionCamera {
 public:
-    int camera_handle;      // MindVision SDK中的相机句柄
+    CameraHandle camera_handle;     // MindVision SDk中的相机句柄
     bool is_opened;
     std::string target_color;
     int width;
     int height;
     int fps;
     unsigned char* g_pRgbBuffer; // 处理后数据缓存区
+    tSdkCameraCapbility capability;  // 相机能力信息
+    tSdkImageResolution image_resolution;  // 分辨率信息
 
     MindVisionCamera(int cam_id = 0, const std::string& target_color = "red");
     ~MindVisionCamera();
@@ -29,6 +31,10 @@ public:
     void release();
     bool switch_color(const std::string& target_color);
 
+    int get_width() const { return width; }
+    int get_height() const { return height; }
+    bool set_resolution(int width, int height);
+
 private:
     void set_camera_parameters();
     bool initialize_camera(int cam_id);

inc/config.h

@@ -36,6 +36,9 @@ const float ARMOR_ANGLE_DIFF_THRESHOLD = 15.0f * CV_PI / 180.0f; // Armor light
 const float KF_PROCESS_NOISE = 0.02f;       // Process noise covariance
 const float KF_MEASUREMENT_NOISE = 0.5f;    // Measurement noise covariance
 
+// Focal length in pixels (from camera calibration)
+const double FOCAL_PIXAL = 600.0;  // This should match your actual camera calibration
+
 // TTL communication settings
 const int TTL_BAUDRATE = 115200;
 

src/MindVisionCamera.cpp

@@ -59,21 +59,19 @@ bool MindVisionCamera::initialize_camera(int cam_id) {
     }
     
     // 获取相机能力
-    tSdkCameraCapbility capability;
     iStatus = CameraGetCapability(camera_handle, &capability);
     if (iStatus != CAMERA_STATUS_SUCCESS) {
         std::cerr << "Failed to get camera capability! Error code: " << iStatus << std::endl;
         return false;
     }
-    
-    // 让SDK进入工作模式 - 根据原始OpenCv项目，应该在设置格式前调用
-    CameraPlay(camera_handle);
 
     // 设置输出格式 - 保持与原始工作项目一致，直接设置为BGR8格式
     CameraSetIspOutFormat(camera_handle, CAMERA_MEDIA_TYPE_BGR8);
 
+     // 让SDK进入工作模式 - 根据原始OpenCv项目，应该在设置格式前调用
+    CameraPlay(camera_handle);
+
     // 获取并设置分辨率为 640x480
-    tSdkImageResolution image_resolution;
     int status = CameraGetImageResolution(camera_handle, &image_resolution);
     std::cout << "Default resolution query returned: " << status << std::endl;
 
@@ -166,6 +164,18 @@ bool MindVisionCamera::read_frame(cv::Mat& frame) {
 
     // 获取一帧数据
     if (CameraGetImageBuffer(camera_handle, &sFrameInfo, &pbyBuffer, 1000) == CAMERA_STATUS_SUCCESS) {
+        // 直接使用CameraGetImageBufferEx获取处理后的RGB数据，提高效率
+        INT width, height;
+        unsigned char* pData = CameraGetImageBufferEx(camera_handle, &width, &height, 2000);
+        if(pData != NULL) {
+            // 创建OpenCV Mat对象，直接使用获取的数据
+            cv::Mat temp_mat(height, width, CV_8UC3, pData);
+            frame = temp_mat.clone(); // clone()确保数据被复制，而不是共享指针
+
+            // CameraGetImageBufferEx方式不需要手动释放缓冲区
+            return true;
+        }
+        
         // 使用全局缓冲区处理图像数据 - 与原始项目一致
         int status = CameraImageProcess(camera_handle, pbyBuffer, g_pRgbBuffer, &sFrameInfo);
         if (status != CAMERA_STATUS_SUCCESS) {
@@ -192,6 +202,38 @@ bool MindVisionCamera::read_frame_with_color_filter(cv::Mat& frame, cv::Mat& raw
         return false;
     }
 
+     // 尝试使用CameraGetImageBufferEx方式获取图像
+    INT width, height;
+    unsigned char* pData = CameraGetImageBufferEx(camera_handle, &width, &height, 2000);
+    if(pData != NULL) {
+        // 创建OpenCV Mat对象，直接使用获取的数据
+        cv::Mat original_img(height, width, CV_8UC3, pData);
+        frame = original_img.clone(); // clone()确保数据被复制，而不是共享指针
+
+        // 创建HSV图像用于颜色过滤
+        cv::Mat hsv_img;
+        cv::cvtColor(frame, hsv_img, cv::COLOR_BGR2HSV);
+
+        // 根据颜色创建原始掩码
+        if (target_color == "red") {
+            // Red color range in HSV
+            cv::Mat mask1, mask2;
+            cv::inRange(hsv_img, cv::Scalar(0, 43, 49), cv::Scalar(25, 255, 255), mask1);
+            cv::inRange(hsv_img, cv::Scalar(156, 46, 49), cv::Scalar(180, 255, 255), mask2);
+            raw_mask = mask1 | mask2;
+        } else if (target_color == "blue") {
+            // Blue color range in HSV
+            cv::inRange(hsv_img, cv::Scalar(83, 200, 44), cv::Scalar(130, 255, 255), raw_mask);
+        } else {
+            raw_mask = cv::Mat::zeros(hsv_img.size(), CV_8UC1);
+        }
+
+        // CameraGetImageBufferEx方式不需要手动释放缓冲区
+        return true;
+    }
+
+    // 如果CameraGetImageBufferEx失败，回退到原来的方式
+
     tSdkFrameHead sFrameInfo;
     BYTE* pbyBuffer;
 
@@ -239,11 +281,16 @@ bool MindVisionCamera::read_frame_with_color_filter(cv::Mat& frame, cv::Mat& raw
 }
 
 void MindVisionCamera::release() {
-    if (camera_handle >= 0) {
+    if (camera_handle != 0) {
         // 停止采集，不管is_opened状态如何都尝试释放
+        CameraPause(camera_handle);
         CameraUnInit(camera_handle);
         camera_handle = -1;
     }
+    if(g_pRgbBuffer) {
+        free(g_pRgbBuffer);
+        g_pRgbBuffer = nullptr;
+    }
     is_opened = false;
 }
 
@@ -259,4 +306,30 @@ bool MindVisionCamera::switch_color(const std::string& new_color) {
         return set_cam_params(); // 返回set_cam_params的结果
     }
     return false;
+}
+
+bool MindVisionCamera::set_resolution(int width, int height){
+    if (!is_opened) {
+        return false;
+    }
+
+    tSdkImageResolution res;
+    int status = CameraGetImageResolution(camera_handle, &res);
+
+    res.iIndex = 0xFF;
+    res.iWidth = width;
+    res.iHeight = height;
+    res.iWidthFOV = capability.sResolutionRange.iWidthMax;
+    res.iHeightFOV =  capability.sResolutionRange.iHeightMax;
+    res.iHOffsetFOV = 0;
+    res.iVOffsetFOV = 0;
+
+    status = CameraSetImageResolution(camera_handle, &res);
+    if (status == CAMERA_STATUS_SUCCESS) {
+        this->width = width;
+        this->height = height;
+        image_resolution = res;
+        return true;
+    }
+    return false;
 }

src/MindVisionMain.cpp

@@ -1,3 +1,4 @@
+#include <cstdlib>
 #include <iostream>
 #include <string>
 #include <vector>
@@ -5,8 +6,9 @@
 #include <thread>
 #include <memory>
 #include <unistd.h>
-
+#include <math.h>
 #include <opencv2/opencv.hpp>
+#include <opencv2/tracking.hpp>
 
 #include "config.h"
 #include "MindVisionCamera.h"  // 使用MindVision相机
@@ -20,48 +22,64 @@
 // Function to output control data to TTL device (with enable control)
 void output_control_data(const cv::Point2f* ballistic_point,
                         const std::string& target_color,
-                        int frame_counter,
                         TTLCommunicator* ttl_communicator,
                         const cv::Point2f& img_center,
                         bool use_ttl) {
-    // Only send data when TTL is enabled, meets frame interval, and has valid target
-    if (use_ttl && frame_counter % 5 == 0 && ballistic_point != nullptr) {
+    // Only send data when TTL is enabled and has valid target
+    if (use_ttl && ballistic_point != nullptr) {
         std::ostringstream send_str;
 
         // Calculate offset (based on actual image center)
-        int ballistic_offset_x = static_cast<int>(ballistic_point->x - img_center.x);
-        int ballistic_offset_y = static_cast<int>(img_center.y - ballistic_point->y);
+        int ballistic_offset_yaw = 1.9*-static_cast<int>(ballistic_point->x - img_center.x);
+        if ( abs(ballistic_offset_yaw) > 320){
+            ballistic_offset_yaw = ( ballistic_offset_yaw / abs( ballistic_offset_yaw ) ) * 220 ;
+        }
+        int ballistic_offset_pitch = 1.9*-static_cast<int>(img_center.y - ballistic_point->y);
+        if ( abs(ballistic_offset_pitch) > 180 ) {
+            ballistic_offset_pitch = ( ballistic_offset_pitch / abs( ballistic_offset_pitch ) ) * 180*1.9 ;
+        }
 
         // Color simplification mapping
         std::string simplified_color = target_color;
         if (target_color == "red") simplified_color = "r";
         else if (target_color == "blue") simplified_color = "b";
 
-        // Construct send string
-        send_str << "s " << simplified_color << " " << std::to_string(ballistic_offset_x) << " " << std::to_string(ballistic_offset_y) << "\n";
+        // Construct send string (original format)
+        send_str << "#s " << simplified_color << " " << std::to_string(ballistic_offset_yaw) << " " << std::to_string(ballistic_offset_pitch) << "*\n";
 
         // Send data
         if (ttl_communicator != nullptr) {
             ttl_communicator->send_data(send_str.str());
-
         }else{
             std::cerr << "Error: TTLCommunicator is a null pointer!" << std::endl;
         }
     }
 }
 
-void set_camera_resolution(MindVisionCamera& , int width, int height) {
+void set_camera_resolution(MindVisionCamera& camera, int width, int height) {
     // The resolution is set during camera initialization in MindVision
     // We need to implement a method in MindVisionCamera to change resolution
     // For now, we'll just log the intended change
-    std::cout << "Setting camera resolution to: " << width << "x" << height << std::endl;
+   if (camera.set_resolution(width, height)){
+        std::cout << "Successfully set camera resolution to: " << width << "x" << height << std::endl;
+   } else {
+        std::cerr << "Failed to set camera resolution to: " << width << "x" << height << std::endl;
+   }
 }
 
 int main(int /*argc*/, char* /*argv*/[]) {
+    static int Numbe = 0;
     std::string target_color = "red";
     int cam_id = 0;
-    cv::Size default_resolution(640, 480);
-    bool use_ttl = true; // Set to false to disable TTL communication
+    cv::Size default_resolution(640, 480); // Changed to 640x480 for consistency with SJTU project
+    bool use_ttl = false; // Set to false to disable TTL communication
+
+
+    if (Numbe == 0) {
+        // 执行 shell 命令（注意安全风险！）
+        std::system("sudo chmod 777 /dev/tty*");
+        Numbe++;
+    }
 
     // Define optional resolution list (adjust based on camera support)
     std::vector<cv::Size> resolutions = {
@@ -117,6 +135,13 @@ int main(int /*argc*/, char* /*argv*/[]) {
     KalmanFilter kalman_tracker;
     Visualizer visualizer;
 
+    // Initialize KCF tracker
+    cv::Ptr<cv::Tracker> tracker = cv::TrackerKCF::create();
+    bool is_tracking = false;
+    cv::Rect2d tracking_roi;
+    int tracking_frame_count = 0;
+    const int MAX_TRACKING_FRAMES = 100; // Maximum frames to track before returning to search
+
     int frame_counter = 0; // Counter to control output frequency
     int max_consecutive_predicts = 20; // Maximum consecutive prediction times
     int consecutive_predicts = 0; // Current consecutive prediction count
@@ -125,6 +150,7 @@ int main(int /*argc*/, char* /*argv*/[]) {
     try {
         while (true) {
             // 使用新的颜色过滤方法同时获取图像和原始掩码
+
             cv::Mat raw_mask;
             if (!camera.read_frame_with_color_filter(frame, raw_mask, target_color)) {
                 std::cout << "Cannot read from MindVision camera, exiting!，HERERER" << std::endl;
@@ -142,30 +168,90 @@ int main(int /*argc*/, char* /*argv*/[]) {
             cv::Mat color_only_frame;
             frame.copyTo(color_only_frame, raw_mask);
 
-            // Armor plate detection
+            // Initialize tracking center
+            cv::Point2f* tracking_center = nullptr;
+            std::unique_ptr<cv::Point2f> tracking_point = nullptr;
+
+            if (is_tracking) {
+                // Update tracker
+                bool success = tracker->update(frame, tracking_roi);
+                if (success && tracking_roi.area() > 0) {
+                    // Calculate center of tracked ROI
+                    tracking_point = std::make_unique<cv::Point2f>(
+                        tracking_roi.x + tracking_roi.width / 2.0f,
+                        tracking_roi.y + tracking_roi.height / 2.0f
+                    );
+                    tracking_center = tracking_point.get();
+                    tracking_frame_count++;
+
+                    // If tracking for too long or detection is available, search for armor again
+                    if (tracking_frame_count > MAX_TRACKING_FRAMES) {
+                        is_tracking = false;
+                        tracking_frame_count = 0;
+                    }
+                } else {
+                    // Tracking failed, return to detection mode
+                    is_tracking = false;
+                    tracking_frame_count = 0;
+                }
+            }
+
+            // Armor plate detection - only when not tracking or need to verify tracking
             std::vector<LightBar> valid_light_bars;
             std::vector<ArmorPlate> armor_plates;
-            detector.detect(mask, target_color, valid_light_bars, armor_plates);
+
+            if (!is_tracking || tracking_frame_count % 10 == 0) { // Detect every 10 frames when tracking
+                detector.detect(mask, target_color, valid_light_bars, armor_plates);
+            }
 
             // Kalman filter tracking (modified part: get target speed)
-            cv::Point2f* current_center = nullptr;
+            cv::Point2f* detection_center = nullptr;
             if (!armor_plates.empty()) {
-                current_center = &(armor_plates[0].center);
+                detection_center = &(armor_plates[0].center);
             }
 
             // Use smart pointer for safer memory management
             std::unique_ptr<cv::Point2f> predicted_center = nullptr;
 
-            if (current_center != nullptr) {
+            // Priority: detection -> tracking -> Kalman prediction
+            if (detection_center != nullptr) {
                 // Has detection result: update Kalman filter, reset consecutive prediction count
-                kalman_tracker.update(*current_center);
+                kalman_tracker.update(*detection_center);
                 predicted_center = std::make_unique<cv::Point2f>(kalman_tracker.predict());
 
-                // Get velocity from the Kalman filter
-                target_speed = cv::Point2f(0.0f, 0.0f); // Kalman filter in OpenCV doesn't directly expose velocity
+                // Start tracking if successfully detected
+                if (!is_tracking && !armor_plates.empty()) {
+                    cv::Rect2d armor_rect = cv::boundingRect(std::vector<cv::Point2f>{
+                        armor_plates[0].corners_2d[0],
+                        armor_plates[0].corners_2d[1],
+                        armor_plates[0].corners_2d[2],
+                        armor_plates[0].corners_2d[3]
+                    });
+                    // Expand the bounding box slightly for better tracking
+                    cv::Rect2d expanded_rect = cv::Rect2d(
+                        armor_rect.x - armor_rect.width * 0.1,
+                        armor_rect.y - armor_rect.height * 0.1,
+                        armor_rect.width * 1.2,
+                        armor_rect.height * 1.2
+                    );
+                    // Ensure the rectangle is within frame bounds
+                    expanded_rect = expanded_rect & cv::Rect2d(0, 0, frame.cols, frame.rows);
+
+                    tracker = cv::TrackerKCF::create(); // Create new tracker instance
+                    tracker->init(frame, expanded_rect);
+                    tracking_roi = expanded_rect;
+                    is_tracking = true;
+                    tracking_frame_count = 0;
+                }
+
+                consecutive_predicts = 0;
+            } else if (is_tracking && tracking_center != nullptr) {
+                // Use tracking result
+                kalman_tracker.update(*tracking_center);
+                predicted_center = std::make_unique<cv::Point2f>(kalman_tracker.predict());
                 consecutive_predicts = 0;
             } else {
-                // No detection result: only use Kalman prediction, limit consecutive predictions
+                // No detection or tracking result: only use Kalman prediction, limit consecutive predictions
                 consecutive_predicts++;
                 if (consecutive_predicts < max_consecutive_predicts) {
                     cv::Point2f temp_pred = kalman_tracker.predict();
@@ -179,11 +265,14 @@ int main(int /*argc*/, char* /*argv*/[]) {
             }
 
             // Determine display center
-            cv::Point2f* display_center = current_center;
+            cv::Point2f* display_center = detection_center; // Give priority to detection results
+            if (display_center == nullptr && is_tracking && tracking_center != nullptr) {
+                display_center = tracking_center;
+            }
             if (display_center == nullptr && predicted_center != nullptr) {
                 display_center = predicted_center.get();
             }
-            bool is_predicted = (display_center != nullptr) && (current_center == nullptr);
+            bool is_predicted = (display_center != nullptr) && (detection_center == nullptr && (!is_tracking || tracking_center == nullptr));
 
             // Calculate ballistic prediction point
             cv::Point2f* ballistic_point = ballistic_predictor.predict_ballistic_point(
@@ -197,16 +286,21 @@ int main(int /*argc*/, char* /*argv*/[]) {
             if (!armor_plates.empty()) {
                 visualizer.draw_armor_plate(frame, armor_plates[0]);
             }
+            // Draw tracking rectangle if tracking
+            if (is_tracking) {
+                cv::rectangle(frame, tracking_roi, cv::Scalar(0, 255, 0), 2);
+            }
             visualizer.draw_offset_text(frame, display_center, target_color, is_predicted);
             visualizer.draw_ballistic_point(frame, ballistic_point);
 
             // Output control data to TTL (passing use_ttl to control whether to send)
-            output_control_data(display_center, target_color, frame_counter, ttl, img_center, use_ttl);
+            // Now sending on every frame for smoother control
+            output_control_data(display_center, target_color, ttl, img_center, use_ttl);
 
             // Display windows
-            cv::imshow("Armor Detection", frame);
             cv::imshow(target_color + " Mask", mask);
             cv::imshow(target_color + " Only", color_only_frame);
+            cv::imshow("Armor Detection", frame);
 
             // Exit on 'q' key press
             if (cv::waitKey(1) == 'q') {