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Pedestrian Retrieval Method Based on Bidirectional Sorting

A pedestrian and two-way technology, applied in image analysis, instrumentation, computing, etc., can solve problems such as inaccurate retrieval results and differences in appearance features, and achieve accurate pedestrian retrieval results and robust pedestrian appearance changes

Active Publication Date: 2016-01-20
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in the actual video surveillance environment, different cameras have different viewing angles, lighting, color differences and other factors, resulting in significant differences in the appearance characteristics of the same pedestrian under multiple cameras, which makes the retrieval results inaccurate

Method used

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  • Pedestrian Retrieval Method Based on Bidirectional Sorting
  • Pedestrian Retrieval Method Based on Bidirectional Sorting
  • Pedestrian Retrieval Method Based on Bidirectional Sorting

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Embodiment Construction

[0028] The pedestrian retrieval method based on two-way sorting in the present invention, firstly, perform initial sorting on the set of pedestrians to be measured through feature extraction and scale learning of pedestrian objects; The two-way content similarity and neighbor similarity of the two-way content similarity; finally, according to the two-way content similarity and neighbor similarity rearrange each pedestrian in the test pedestrian set.

[0029] In the present invention, the pedestrian p to be queried is the pedestrian object captured by the camera A, the pedestrian object to be tested is the pedestrian object captured by the camera B, and the pedestrian objects captured by the camera B constitute the pedestrian object to be measured. The present invention is to find the same pedestrian object as the pedestrian p to be queried from the pedestrian objects photographed by the camera B.

[0030] figure 1 For the method flow chart of the present invention, below will...

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Abstract

The invention discloses a pedestrian retrieval method based on bidirectional sequencing, belonging to the technical field of monitoring video retrieval. According to the method, firstly, the initial sequencing of a people set to be tested is carried out through feature extraction and scale learning of a pedestrian object, then each row of people in the people set to be tested is reversely inquired, the bidirectional content similarity and neighbor similarity of pedestrian to be inquired and pedestrian to be tested are calculated, and finally each pedestrian to be tested in the people set is rearranged according to the bidirectional content similarity and the neighbor similarity. According to the method, a two-way matching idea is introduced, the pedestrian is rearranged through the content and neighbor similarities, a more accurate pedestrian retrieval result can be obtained, and the pedestrian appearance change caused by the environmental change is more robust.

Description

technical field [0001] The invention belongs to the technical field of surveillance video retrieval, in particular to a pedestrian retrieval method based on bidirectional sorting. Background technique [0002] Surveillance video pedestrian retrieval is a technique for matching specific pedestrian objects under multiple cameras with non-overlapping illuminated areas. In the actual video investigation, investigators mainly use the moving pictures and trajectories of the same pedestrian object to quickly lock, check and track the suspected target. The traditional video investigation mode of manual browsing requires a lot of manpower and time, and it is easy to delay the time to solve the case. Pedestrian re-identification technology facilitates video investigators to quickly and accurately discover the moving pictures and trajectories of suspected targets, which is of great significance for the public security department to improve the detection rate and maintain the safety of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
Inventor 胡瑞敏冷清明梁超王亦民陈军张华
Owner WUHAN UNIV
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