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Motion detection system and method

A technology of motion detection and movement, applied in the field of motion detection, can solve the problems of reducing the amount of detection calculation, long search calculation time in the whole area, and consuming hardware resources, so as to save calculation and memory, improve detection efficiency and tracking accuracy Effect

Pending Publication Date: 2021-04-16
博流智能科技(南京)有限公司
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Problems solved by technology

The traditional full search (full search) operation takes a long time and consumes hardware resources, so many fast algorithms have been proposed to greatly reduce the amount of detection calculations

Method used

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  • Motion detection system and method

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Embodiment Construction

[0027] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0029] The description in this part is only for several typical embodiments, and the present invention is not limited to the scope of the description of the embodiments. The mutual replacement of the same or similar prior art means and some technical features in the embodiments is also within the scope of the description and protection of the present invention.

[0030] The description of the steps in each embodiment in the specification is only for convenience of description, and the imple...

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Abstract

The invention discloses a motion detection system and method. The motion detection system comprises a video frame reduction module, a first motion detection module and a second motion detection module, the video frame reduction module is used for performing image reduction on a set video frame of the video data; and for the set video frame, obtaining at least two shrunk images with different resolutions; the first motion detection module is used for performing motion detection through a set reduced image in the video data to obtain a motion vector; and the second motion detection module is used for performing motion detection on an image with higher resolution by taking a position specified by the amplified motion vector as an initial position. According to the motion detection system and method provided by the invention, the operation and memory can be saved, the moving object can be better detected, and the detection efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of motion detection, relates to a motion detection system, in particular to a motion detection system and method based on video data. Background technique [0002] Motion detection is a part of video coding that requires high computation and bandwidth. Usually, the input frame is compared with the reference frame, and the most similar block is found in the reference frame to determine the motion vector of the block. The traditional full search (full search) operation takes a long time and consumes hardware resources, so many fast algorithms have been proposed to greatly reduce the amount of detection calculations. [0003] One of the motion detection algorithms is the Hierarchy motion detection method; in this method, the original resolution image is first down-sampled (or down-scaled) into one or several images of different resolutions; starting from the lowest resolution, in The motion detection on the i...

Claims

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Application Information

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IPC IPC(8): H04N19/142H04N19/59
Inventor 李韦磬
Owner 博流智能科技(南京)有限公司
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