The invention provides a way to check the accuracy of video analysis systems, particularly for identifying specific events in recorded camera footage, like a virtual line crossing. It automatically finds instances where the video analysis system's determination doesn't match the actual situation, then displays a still image from that moment. A user can then interact with this image to view the detailed analysis results for that specific time.
Why it matters: Filed before the widespread deployment of advanced AI for video analytics. The increasing sophistication and deployment of AI-driven event detection in video makes systematic evaluation tools like this invention more critical for ensuring accuracy.
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