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A shooting method and device for monitoring

A technology for monitoring camera and monitoring area, applied in the field of monitoring camera method and device

Active Publication Date: 2008-10-15
中星智能系统技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the object of the present invention is to provide a monitoring camera method and device, so that the monitoring camera device can judge whether there is a moving object according to the result of the motion detection, thereby automatically adjusting the working clock frequency of the image acquisition module to solve the problem when there is no motion. The problem that the image acquisition module still works at normal speed in the presence of objects

Method used

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  • A shooting method and device for monitoring
  • A shooting method and device for monitoring
  • A shooting method and device for monitoring

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Embodiment Construction

[0028] The core idea of ​​the present invention is: when the monitoring camera device works in a normal state, when there is no moving object in the monitoring area for a certain period of time, it enters the power saving state, and takes and outputs image sequences at a lower working clock frequency; the monitoring camera device When working in the power-saving state, once a moving object appears in the monitoring area, the working clock frequency of the image acquisition module will be restored to the normal working state immediately, and the image sequence will be captured and output at the normal working clock frequency.

[0029] Below in conjunction with accompanying drawing, specifically illustrate the workflow of the present invention:

[0030] In step 301, the camera works in a normal state and outputs 30 frames of images in CIF format per second.

[0031] The image acquisition module in this embodiment is a camera, and the image format output by the camera is a CIF fo...

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Abstract

This invention discloses a camera monitoring method including: obtaining image sequences with a certain working clock frequencies, carrying out motion detection to the image, analyzing the detection result, switching working clock frequency based on analysis result to obtain image sequences with a new working clock frequency. This invention also discloses a camera monitor device including an image obtaining module, a motion detection module, an analysis module and a working clock frequency regulation module, which solves the problem of still working normally without motion objects and is widely used in camera-monitoring devices.

Description

technical field [0001] The invention relates to the field of video surveillance, in particular to a surveillance camera method and device. technical background [0002] Existing surveillance camera devices generally shoot and output video image sequences at a fixed rate, for example outputting 25 or 30 frames of images per second. These video image sequences can be transmitted to a TV monitor for display, or saved on tape and other media. [0003] But in many cases, such as the video images captured by the monitoring camera device of the building security system at night, most of the time there is no moving target. In this case, it is completely unnecessary for the monitoring camera device to capture, transmit and store video image sequences at a fixed rate, because this will cause a lot of waste in power consumption, transmission bandwidth, storage space, etc. [0004] There are also monitoring camera devices with automatic wake-up function now. The camera works normally ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N7/18G06T7/20
Inventor 王浩俞青
Owner 中星智能系统技术有限公司