System, apparatus and method for implementing video monitoring regional occlusion

A video monitoring and regional technology, applied in closed-circuit television systems, televisions, electrical components, etc., can solve the problem of low reliability of regional occlusion

Inactive Publication Date: 2009-07-22
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] It can be seen that the area occlusion reliability of existing video surveillance is not high

Method used

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  • System, apparatus and method for implementing video monitoring regional occlusion
  • System, apparatus and method for implementing video monitoring regional occlusion
  • System, apparatus and method for implementing video monitoring regional occlusion

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Embodiment Construction

[0062] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0063] In this embodiment, according to the angle and / or focal length of the simulated lens, and the shape of the occluded area in the preset image, the position of each edge point of the occluded area in the image is determined. In this way, when the angle of the simulated lens and / or When the focal length changes, the position of each edge point of the determined occlusion area will naturally change accordingly, so as to realize the dynamic adjustment of the horizontal and / or vertical ratio of the occlusion area in the field of view of the simulated lens.

[0064] Moreover, in this embodiment, a corresponding occlusion pattern, or mask, is generated according to the determined position of each edge point of the occlusion area, and then the generated oc...

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Abstract

The invention discloses a system, a device and a method for implementing video monitoring zone occlusion, and a device for presenting the video monitoring zone occlusion. The invention determines each edge point position of the occlusion zone in an image according to a simulating lens angle and/or focal distance, and the occlusion zone shape in a pre-setting image, so as to realize a dynamic regulation to a proportion of the occlusion zone in the simulating lens visual field; then generates corresponding occlusion graphs according to each edge point position of the occlusion zone and overlays the graphs in the image, and enables the occlusion zone of the image to be screened by the occlusion graphs. Moreover, a multimedia chip also generates corresponding occlusion graphs according to colors expressing the occlusion graphs, and/or transparency, and/or fuzzification degree, and/or word collocation information displayed in the occlusion zone, so as to make the occlusion zone of the image to implement various occlusion effects.

Description

technical field [0001] The invention relates to video surveillance technology, in particular to a system for realizing video surveillance area occlusion, a device for realizing video surveillance area occlusion, a device for presenting video surveillance area occlusion, and a method for realizing video surveillance area occlusion. Background technique [0002] With the advancement of technology, video surveillance has been increasingly used in various fields. However, for video surveillance in some fields, there may be a need to protect personal privacy, which requires the camera not only to be able to capture images, but also to have an area blocking function that can block specific areas of the monitoring target in the image. Wherein, the cameras referred to in this article are all digital cameras. [0003] Specifically, in order to capture and output images, the existing camera first needs to collect the analog image signal obtained by its analog lens to obtain the first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N7/26
Inventor 柳文凭
Owner VIMICRO CORP
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