Method of capturing human face by jointly using panoramic camera and multiple snapshot cameras

A panoramic camera and video camera technology, applied in the field of computer information, can solve the problems of inability to use face recognition, regardless of the direction of travel, etc., to achieve the effect of improving the success rate and reliable face images

Active Publication Date: 2018-08-17
北京天睿空间科技股份有限公司
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Problems solved by technology

[0003] The most popular existing video surveillance method is based on the single gun camera-multi-ball camera linkage space modeling method. The panoramic video is obtained through a single gun camera, and the nearest dome camera is called to shoot the target image according to the monitoring needs. The defect is that only the target is considered Although the head image of the person target can be captured without considering the direction of travel, it is likely to be the side of the face or even the back of the head, which cannot be used for subsequent face recognition

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  • Method of capturing human face by jointly using panoramic camera and multiple snapshot cameras
  • Method of capturing human face by jointly using panoramic camera and multiple snapshot cameras
  • Method of capturing human face by jointly using panoramic camera and multiple snapshot cameras

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[0030] Below in conjunction with the accompanying drawings, the present invention will be further described by taking the panorama camera adopting a bolt camera and the snap camera adopting a dome camera as examples.

[0031] Such as Figure 1-7 As shown, the method for capturing faces in a large scene provided by the present invention needs to complete three major steps of speed dome linkage, target tracking, and face detection and capture: calibrate the latitude and longitude of the speed dome and calibrate the PTZ effective coverage of the speed dome in the monitoring scene, and use The coordinate mapping table establishes a mapping relationship with the camera coordinate system for shooting panoramic videos; then uses multi-target tracking of panoramic videos to analyze the trajectory of the selected target in the scene; finally selects the target person to be photographed, and analyzes the target according to the trajectory of the target Drive the dome camera in front of ...

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Abstract

The invention relates to a method of capturing a human face by jointly using a panoramic camera and multiple snapshot cameras. According to the method, the panoramic camera acquires a panoramic videoof a monitored area, a moving direction of a related figure target in the panoramic video is analyzed, the snapshot camera in front of moving direction of the related figure target is driven to take pictures of the face of the figure target so as to acquire a human face image of the figure target applicable to human face identification, a human face skin color area and a lip skin color area are identified in the taken human face pictures according to a clustering feature of skin color pixels, so as to determine human face deflection degree in the human face picture to select a best human faceimage. The method can acquire human face images suitable for human face identification, greatly improves success rate of human face capturing and human face information integrity, and provides more effective and reliable human face images for human face identification based on video monitor.

Description

technical field [0001] The invention relates to a method for synchronously capturing human faces by using a panoramic camera and a plurality of capturing cameras, and belongs to the field of computer information technology, especially video monitoring technology. Background technique [0002] As an important means of modern security management, video surveillance has been widely used in densely populated or important places such as government agencies, banks, and stations. In recent years, with the continuous development of computer technology, the video surveillance system is changing to the direction of intelligence. By arranging several cameras for video shooting and corresponding video data processing of the monitoring scene, a panoramic video can be obtained, and it can be shot for the person target that needs to be monitored. [0003] The most popular existing video surveillance method is based on the single gun camera-multi-ball camera linkage space modeling method. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
CPCH04N23/611
Inventor 李飞郑文涛王国夫
Owner 北京天睿空间科技股份有限公司
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