Fish-eye camera-based human detection system

A human body detection and camera technology, applied in image enhancement, image data processing, instruments, etc., can solve problems such as fisheye image deformation, achieve the effects of improving system efficiency, network transmission efficiency, and computing time

Inactive Publication Date: 2010-10-13
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the severe deformation of fisheye images and the fact that fisheye cameras are generally installed on the ceiling, the research on human detection and automatic human search based on fisheye cameras is still a blank

Method used

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  • Fish-eye camera-based human detection system
  • Fish-eye camera-based human detection system
  • Fish-eye camera-based human detection system

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Embodiment Construction

[0024] The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are implemented on the premise of the technical solutions of the present invention, and detailed implementation methods and processes are given, but the protection scope of the present invention is not limited to the following examples.

[0025] Such as figure 1 Shown, the present invention is made of following device:

[0026] The photographic device 201 includes a fisheye camera installed on the ceiling, which is composed of a CCD or C-MOS camera, and the viewing angle of the lens is 180 degrees. The pictures taken by the photographic device are transmitted to the signal processing device 203 . The picture taken by the photographing device may be, for example, a color picture with a size of 604*604.

[0027] The storage device 202 is composed of storage elements such as ROM and RAM, and is co...

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Abstract

The invention discloses an automatic monitoring system which uses one camera to realize large extent monitoring and has no dead corner. In the system, a photographic device transmits the shot picture to a signal processing device; a storage device is connected with the signal processing device, the storage device stores background image and head candidate area in an image storage part according to the command of the signal processing device and also stores a classifier for judging whether a human body exists in the image, in a classifier storage part; a result output device is connected with the signal processing device; and when the system detects a person exists, a monitor is used to display the image, send an abnormal signal and transmit the image to the user side. The system adopts a fish-eye camera with the visible angle of 180 degrees to realize the human detection to the fish-eye image. By using the invention, the human body in the fish-eye image can be correctly detected, all the human areas in the video image can be determined, the human areas can be rectified to form two-dimensional images, and the two-dimensional images can be displayed in a display device and sent to the user side.

Description

technical field [0001] This invention relates to a device for automatically detecting pedestrians, cutting pedestrian areas, and transmitting the areas during the video monitoring process, and belongs to the fields of image processing, pattern recognition, and video monitoring. Background technique [0002] Human detection has many important applications in the field of computer vision, such as driver assistance systems, video surveillance, image retrieval, robotics and advanced human-computer interaction, etc. In intelligent video surveillance, automatically searching for human bodies in a scene is regarded as the first preprocessing step for understanding human activities. [0003] On the other hand, with the development of lens and sensor technology, wide-angle cameras with a larger field of view have been developed. The viewing angle of these wide-angle cameras can exceed 180 degrees. They are also called fisheye cameras. When the viewing angle exceeds 180 degrees, they...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T5/00
Inventor 袁雪魏学业宋永瑞
Owner BEIJING JIAOTONG UNIV
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