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Video analysis method and video analysis device

A video analysis and motion vector technology, applied in the field of image processing, can solve the problems of low detection accuracy of moving objects and inability to analyze the video monitoring mode, etc., and achieve improved moving object detection and tracking methods, enhanced tracking effects, and high real-time performance Effect

Active Publication Date: 2019-02-19
FUJITSU LTD
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  • Claims
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Problems solved by technology

[0004] In view of this, the present invention provides a video analysis method, a video analysis device and electronic equipment, to at least solve the problems that the existing video analysis technology cannot analyze the monitoring mode of the video and the detection accuracy of the moving object is low

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  • Video analysis method and video analysis device
  • Video analysis method and video analysis device

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Embodiment Construction

[0022] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.

[0024] The invention obtains the motion vector data and the gray level average value of each macroblock in the current coded frame from video coding, and can define the size of the macroblock according to the actual application. The small...

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Abstract

The invention provides a video analysis method and a video analysis apparatus. The video analysis method comprises the following steps: obtaining motion vector data and a grayscale mean value of each macro-block in a current coding frame; according to the motion vector data and the grayscale mean value, determining a monitoring mode of a video; when the monitoring mode is a stable mode, detecting a motion object in the video and / or obtaining a motion locus of the motion object in the video; and when the monitoring mode is an unstable mode, detecting a reason of instability. According to the invention, the state of a lens is analyzed by use of the motion vector data and the grayscale mean value of each macro-block, and specific operation is executed according to the state of the lens, such that the intelligence of a monitoring system is improved, the motion object is repaired, and the detection precision is improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular, to a video analysis method and a video analysis device. Background technique [0002] Intelligent analysis technology is an important part of video surveillance system. According to the system structure, this part can be implemented in the front-end equipment in the form of hardware, or in the back-end application in the form of software solutions. When implemented on front-end equipment, additional hardware resources (such as dedicated chips or processors) need to be added to perform high computing loads, because most video codec chips can only complete encoding and decoding tasks; when used on back-end services When embedding a software solution, it may face some technical problems such as transmission delay and channel noise, and even, for a very large surveillance system, it may bring a heavy burden to the back-end service and network capacity. [0003] Secon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/176H04N19/513H04N19/543H04N7/18
Inventor 王琪
Owner FUJITSU LTD
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