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Head detection method and device and head detection and category judgment method and device

A head detection and category judgment technology, applied in the field of pattern recognition and computer vision, can solve the problems of false detection and high false detection rate, and achieve the effect of reducing the false detection rate and improving the accuracy.

Inactive Publication Date: 2010-09-08
SONY CORP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of method has good reliability, and it also has a good detection ability for irregular heads in complex backgrounds, but for objects with similar head shapes, this type of method often causes false detection
Therefore, for head detection in complex environments, the false detection rate of this type of method tends to be relatively high

Method used

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  • Head detection method and device and head detection and category judgment method and device
  • Head detection method and device and head detection and category judgment method and device
  • Head detection method and device and head detection and category judgment method and device

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Embodiment Construction

[0030] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made during the development of any such actual implementation in order to achieve the developer’s specific goals, for example, compliance with system and business-related constraints, and these The restriction conditions may vary depending on the implementation. In addition, it should also be understood that although the development work may be very complicated and time-consuming, for those skilled in the art who benefit from the present disclosure, such development work is only a routine task.

[0031] Here, it should be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or proc...

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Abstract

The invention discloses a head detection method and a device, which is used for detecting head images from input original images, as well as a head detection and category judgment method and a device, which is used for detecting head images from input original images and carrying out category judgment. By using the embodiment of the invention, region of interest (ROI) images which are not the head images obviously are quickly removed from the original images by a first-level head detection based on TGF characteristics and then head images are selected from the rest ROI images by a second-level head detection based on shape characteristics. In addition, if required, confirmation and category judgment can be further carried out on the ROI images which are head images based on results of two levels of head detections to distinguish front / profile / back head images or even non-head images which are detected as head images by mistake. The invention can secure low omission rate, improve accuracy of head detection and reduce false detection rate.

Description

Technical field [0001] The present invention generally relates to the field of pattern recognition and computer vision technology, and in particular to a method for detecting the head included in it from images and videos (and further classifying the head detection results as needed), Equipment and / or system. Background technique [0002] In various existing video surveillance systems and / or methods, the main target is to detect moving objects. However, this system and / or method has two obvious drawbacks. One drawback is that it is only suitable for the detection of moving objects. When a person in a static state appears in the video, or the person in the video has been in a static state for a period of time, it will not be possible to ensure that the monitoring target is correctly detected. Another flaw lies in the need to deal with the problem of physical deformation. The human body is a typical non-rigid body. Therefore, human body detection inevitably has to face deformat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 李亮吴伟国
Owner SONY CORP
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