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Pedestrian detection method and device

A pedestrian detection and pedestrian technology, which is applied in the field of image processing, can solve the problem of high false detection rate, and achieve the effect of reducing the missed detection rate, improving real-time performance, and reducing the false detection rate.

Inactive Publication Date: 2011-09-28
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

[0003] The invention provides a pedestrian detection method and device to solve the technical problem of high false detection rate in the prior art

Method used

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  • Pedestrian detection method and device
  • Pedestrian detection method and device

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Embodiment 1

[0051] Further, this embodiment also includes the step of tracking the pedestrian area further positioned in S15, Figure 5 It is a flowchart of a pedestrian detection method according to another embodiment of the present invention, please refer to Figure 5 :

[0052] Steps S11 to S15 are the same as above. After the SVM classifier further locates the pedestrian area in S15, the obtained pedestrian area is displayed to the user, and S16 is executed.

[0053] S16. Track the pedestrian area obtained by further positioning, and perform the following steps: expand the pedestrian area obtained by further positioning according to a set size or ratio;

[0054] When extracting the region of interest from the next frame image, the area corresponding to the enlarged pedestrian area in the next frame image and the image block to be detected selected from the next frame image frame according to the image block cycle detection order are taken as the sense area of ​​interest.

[0055]Fo...

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Abstract

The invention discloses a pedestrian detection method and a pedestrian detection device. The method comprises the following steps of: collecting a pedestrian image, preprocessing the image, and extracting a region of interest from the preprocessed image; pre-positioning a pedestrian region in the region of interest by adopting an Adaboost cascade classifier; and positioning the pedestrian region in the pedestrian region pre-positioned by the Adaboost cascade classifier by adopting a support vector machine (SVM). By the technical scheme, the technical problem that the fallout ratio in the prior art is high.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a pedestrian detection method and device. Background technique [0002] With the development of electronic technology, pedestrian detection technology based on image or video has gradually replaced traditional infrared or radar methods. Pedestrian detection technology based on image or video has higher reliability, convenience and low cost and is more and more popular. Attention, the existing pedestrian detection technology based on image or video generally uses Adaboost cascade classifier to detect pedestrians. Although this pedestrian detection technology has achieved good results compared with traditional pedestrian detection technology, it has a high false detection rate. Shortcomings. Contents of the invention [0003] The invention provides a pedestrian detection method and device, which solves the technical problem of high false detection rate in the pr...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
Inventor 程如中赵勇王新安许家尧邢文峰吕少亭
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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