A criminal suspect tracking method, device and storage medium based on on-site shoe prints
A technology for suspects and shoe prints, applied to devices and storage media, in the field of criminal suspect tracking methods based on on-site shoe prints, can solve problems such as low efficiency
Active Publication Date: 2022-03-04
CHINESE PEOPLE'S PUBLIC SECURITY UNIVERSITY
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Problems solved by technology
[0006] In view of this, the present invention proposes a method and device for tracking criminal suspects based on on-site shoe prints to overcome the problem of inefficiency caused by manual screening of on-site shoe prints to shoe models and then to pedestrians in the prior art
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[0042] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0043] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related Other details are not relevant to the invention.
[0044] It sho...
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This application provides a method, device and storage medium for tracking criminal suspects based on on-site shoe prints. The method includes: shoe type identification step: using the shoe prints at the scene of the case to determine the suspect's corresponding shoe type; The shoe type matching the suspect’s corresponding shoe type is automatically retrieved from the monitoring video data around the scene during the investigation period, and the result set is output according to the matching degree; the shoe type recognition steps include: inputting the suspect’s on-site shoe print image; combining the input image with the shoe print Compare the shoe print images in the training sample database to determine the suspect’s corresponding shoe type; the video retrieval steps include: inputting the surveillance video data around the scene and the determined image of the suspect’s corresponding shoe type, setting the screening period; automatically detecting and segmenting The pedestrian’s shoe images in the surveillance video data around the scene during the screening period form a temporary database; the input image of the suspect’s corresponding shoe type is compared with the shoe image in the temporary database, and the suspect’s video collection is obtained based on the matching degree.
Description
technical field [0001] The present application relates to the technical field of criminal investigation, in particular to the technology of suspect tracking and traceability in the field of criminal investigation, especially to a method, device and storage medium for tracking criminal suspects based on on-site shoe prints. Background technique [0002] In the 1960s, Chinese public security experts summed up a set of footprint-based criminal investigation techniques. On the basis of long-term practice, public security criminal investigation expert Ma Yulin found that: affected by factors such as human physiological structure and gait and exercise habits, the footprints of different pedestrians are generally different from each other. Taking advantage of this characteristic of footprints, Ma Yulin summed up a set of footwork tracking technology in 1959, "from prints to shadows, from shadows to prints, and people to prints", which can be inferred based on the footprint informat...
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IPC IPC(8): G06F16/73G06V10/774G06V10/74G06K9/62G06N3/04
CPCG06F16/73G06N3/045G06F18/22G06F18/214
Inventor 唐云祁
Owner CHINESE PEOPLE'S PUBLIC SECURITY UNIVERSITY