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Create analyze_video
Browse files- analyze_video +50 -0
analyze_video
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def analyze_video(video_path):
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frames = extract_frames(video_path)
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ball_positions = []
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impact_frame_idx = None
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impact_zone = "unknown"
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for i, frame in enumerate(frames):
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mask = detect_objects_with_model(frame)
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# Very simple segmentation logic
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ball_mask = mask[0] > 0.5 # channel 0 for ball
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pad_mask = mask[1] > 0.5 if mask.ndim > 2 else None # channel 1 for pad
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# Detect ball center
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contours, _ = cv2.findContours(ball_mask.astype(np.uint8), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
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if contours:
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largest = max(contours, key=cv2.contourArea)
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M = cv2.moments(largest)
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if M['m00'] != 0:
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cx = int(M['m10']/M['m00'])
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cy = int(M['m01']/M['m00'])
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ball_positions.append((i, cx, cy))
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# Detect pad hit (optional logic: ball near pad area)
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if pad_mask is not None and contours:
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overlap = np.logical_and(ball_mask, pad_mask).sum()
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if overlap > 10: # simple overlap threshold
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impact_frame_idx = i
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impact_zone = "pad"
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break
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# Run trajectory prediction if ball was detected
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trajectory = predict_trajectory(ball_positions)
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# Predict outcome
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decision = "OUT" if trajectory_hits_stumps(trajectory) and impact_zone == "pad" else "NOT OUT"
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# Visualize
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result_path = draw_visuals(frames, ball_positions, trajectory, impact_frame_idx, decision)
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return result_path, decision
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def trajectory_hits_stumps(trajectory):
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# Simple rule-based check (assuming stumps are around x=300 to 340 px for now)
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for (x, y) in trajectory:
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if 300 < x < 340 and y < 480: # ball projected height intersects stump zone
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return True
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return False
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