要在OpenCV中進行運動員追蹤和性能分析,可以使用OpenCV的目標檢測和跟蹤功能來實現。以下是一些步驟和示例代碼,以展示如何在OpenCV中實現運動員追蹤和性能分析:
import cv2
import numpy as np
video_path = 'path/to/video.mp4'
cap = cv2.VideoCapture(video_path)
# 使用Boosting算法進行目標檢測和跟蹤
tracker = cv2.TrackerBoosting_create()
while True:
ret, frame = cap.read()
if not ret:
break
# 初始化目標位置
if init_bb is not None:
success, box = tracker.update(frame)
if success:
(x, y, w, h) = [int(v) for v in box]
cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 255, 0), 2)
else:
cv2.putText(frame, "Tracking failure detected", (100,80), cv2.FONT_HERSHEY_SIMPLEX, 0.75,(0,0,255),2)
cv2.imshow('Frame', frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
# 計算性能指標
recall = tp / (tp + fn)
precision = tp / (tp + fp)
f1_score = 2 * (precision * recall) / (precision + recall)
print('Recall:', recall)
print('Precision:', precision)
print('F1 Score:', f1_score)
以上是一個簡單的示例代碼,用于在OpenCV中實現運動員追蹤和性能分析。您可以根據需要調整代碼和參數,以滿足您的具體需求。