1, video restore:

The camera directly shoots video, which will be deformed according to the different light and position, and it needs to be restored before it can be recognized.

2, video positioning:

After restoring the video, due to the huge video library, it is necessary to locate the video first and narrow the search range.

3. Video search:

According to the content and positioning of video recovery, a specific search is carried out.

The overall difficulty is very large and easy to make mistakes. In contrast, it is much easier for the camera to obtain the original video file by remote cracking and then search.