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Image processing method and equipment

A technology of image resolution and encoding method, which is applied in the field of image processing methods and equipment, can solve the problems of video sequence impact, bandwidth waste, etc., and achieve the effects of improving clarity, reducing network bandwidth occupancy, and reducing encoding bit rate

Inactive Publication Date: 2014-04-02
HUAWEI TECH CO LTD
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Problems solved by technology

However, in the existing motion detection, when motion is detected, whether it is the resolution switching mode or the bit rate switching mode, it will have an impact on the overall video sequence, resulting in a waste of bandwidth

Method used

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  • Image processing method and equipment
  • Image processing method and equipment
  • Image processing method and equipment

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0039] First, an image processing method in the motion detection process provided by the present invention is introduced.

[0040] see figure 1 , the flow of an embodiment of an image processing method provided by the present invention may specifically include:

[0041] Step 101. Acquire a first region in a video frame that requires motion detection.

[0042] In this step, the area in the video frame that requires motion detection is acquired, and in order to distinguish this area from the remaining areas in the video frame, ...

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Abstract

The embodiment of the invention discloses an image processing method and image processing equipment. The method comprises the steps of acquiring a first area needing to be subjected to motion detection in a video frame; when motion occurs, performing region of interest (ROI) coding for improving image resolution of the first area without changing the coding manner of the remaining area in the video frame; after the motion detection is finished, continuously adopting the coding manner of the remaining area to code the first area. The method and the equipment disclosed by the embodiment of the invention can be used for reducing network bandwidth occupancy rate in the process of performing motion detection on video images.

Description

technical field [0001] The invention relates to the technical field of image data processing, in particular to an image processing method and device. Background technique [0002] Motion detection is an image processing technology that performs motion detection on a certain area or some areas in the video frame sequence collected by video surveillance and provides an alarm function. [0003] In the prior art, the video encoding process based on motion detection is as follows: [0004] First, select the video area that requires motion detection; [0005] Then, motion detection is performed based on the video area; there are many methods of motion detection, such as: motion detection based on video stream differences, and motion detection based on background modeling. [0006] Once motion is detected in the area, in order to improve the definition of the video, it is necessary to increase the resolution of the video capture, or increase the bit rate of the encoded video, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/142H04N19/167H04N19/124
Inventor 李旭张春晓
Owner HUAWEI TECH CO LTD
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