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A Pedestrian Re-Identification Method Based on Batch Block Occlusion Network

A pedestrian, network technology, applied in the field of computer vision, can solve problems such as increasing the complexity of the problem

Active Publication Date: 2022-08-02
深圳万知达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method based on pose positioning usually requires additional pose estimation and semantic information, which increases the complexity of the problem. Therefore, it is necessary to invent a batch block occlusion network to improve these problems

Method used

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  • A Pedestrian Re-Identification Method Based on Batch Block Occlusion Network
  • A Pedestrian Re-Identification Method Based on Batch Block Occlusion Network
  • A Pedestrian Re-Identification Method Based on Batch Block Occlusion Network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A pedestrian re-identification method based on batch block occlusion network, comprising the following steps:

[0046] 1) Diversity: The images in the known pedestrian re-identification datasets Market-1501 and DukeMTMC-reID are divided into training datasets and test datasets. Market-1501 and DukeMTMC-reID are two large-scale pedestrian re-identification domains. General dataset, Market-1501 dataset contains 1501 identities observed from 6 camera viewpoints, contains 12936 training images detected by DPM of 751 persons and 19732 testing images of 750 persons; DukeMTMC-reID dataset There are 16,522 training images of 702 people and 17,661 test images of 702 people. They correspond to 1,404 different people, and the image sizes are different. Therefore, in this example, the training data set includes 29,458 images, and the test data set includes 37,393 images;

[0047] 2) Preprocessing: All images in the training data set and the test data set are cropped to a uniform si...

Embodiment 2

[0075] In step 2), k=32, and the remaining steps are the same as in Example 1.

[0076] The method of embodiment 1 is used below to compare the performance with existing methods, and the comparison results are as follows:

[0077] Table 1. Comparison of the effect of the method in this example and the existing pedestrian re-identification methods

[0078]

[0079] Table 2. Data comparison of global branch and feature deletion branch on Market-1501

[0080]

[0081] Among them, Baseline contains the global branch, BDB contains the global branch + Part 1 branch, and the method in this example contains the global branch + Part 1 branch + Part 2 branch.

[0082] It can be seen from the experimental results that the method in this example effectively improves the recognition accuracy of the network.

[0083] The experimental results of Example 1 and Example 2 are compared on Market-1501, such as Figure 4 As shown, when part=1, the learning feature of the occlusion module ...

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Abstract

The invention discloses a pedestrian re-identification method based on a batch block occlusion network, comprising the following steps: 1) diversity; 2) preprocessing; 3) pre-training; 4) input; 5) constructing a batch block occlusion module ; 6) Build a batch block occlusion network model; 7) Train a pedestrian re-identification network model; 8) Calculate the total training loss; 9) Test; 10) Compare feature distances; 11) Complete re-identification. This method has strong identification ability and improves the performance of the re-identification method.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a pedestrian re-identification method based on a batch block occlusion network. Background technique [0002] Pedestrian re-identification is designed to solve the problem of pedestrian identity recognition in cross-camera scenes, that is, re-identification of pedestrians in different monitoring scenes, which belongs to a branch of image retrieval. Pedestrian re-identification is widely used in intelligent security, unmanned supermarkets, human-computer interaction, album clustering and other fields. Pedestrian re-identification has become a hot topic in the field of computer vision with both research value and challenge due to the large changes in the resolution of pedestrian images, non-uniform shooting angles, poor lighting conditions, large environmental changes, and constant changes in pedestrian poses. and difficult issues. At present, the research work in the fie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V40/20G06V10/764G06V10/82G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06V40/23G06N3/047G06N3/045G06F18/2415G06F18/241
Inventor 张灿龙常松雨李志欣
Owner 深圳万知达科技有限公司