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A video jitter detection method, terminal device and storage medium

A technology of video jitter and detection method, which is applied in the field of image processing, can solve the problems of poor accuracy of the grayscale projection method, and achieve the effects of good real-time performance, good resistance, and small amount of calculation

Active Publication Date: 2020-06-02
ROPEOK TECHNOLOGY GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem of poor accuracy of the grayscale projection method, a video jitter detection method, terminal equipment and storage medium of the present invention calculate the displacement by performing grayscale projection in subregions, and judge according to the number of subregions that generate displacement Face-changing jitter

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  • A video jitter detection method, terminal device and storage medium
  • A video jitter detection method, terminal device and storage medium
  • A video jitter detection method, terminal device and storage medium

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Embodiment 1

[0053] Embodiment 1 of the present invention provides a video shake detection method, such as figure 1 As shown, it is a schematic flow chart of the video shake detection method described in the embodiment of the present invention, and the method may include the following steps:

[0054] S1: Select two consecutive frames of images from the video stream, and convert the two frames of images to grayscale space. In this embodiment, to convert from color space to grayscale space, the color space includes YUV and RGB, etc. .

[0055] S2: Divide the image into P×Q sub-regions of the same size, such as figure 2 As shown, in this embodiment, the image is divided into 2×2=4 sub-areas of the same size, which are respectively upper left, upper right, sitting down, and lower right sub-areas. Further, for the convenience of subsequent calculation of area displacement, When dividing the sub-regions, indent a predetermined number of pixels from the periphery of the image, and in this embo...

Embodiment 2

[0094] The present invention also provides a video shake detection terminal device, including a memory, a processor, and a computer program stored in the memory and operable on the processor, and the present invention is realized when the processor executes the computer program Steps in the above method embodiment of Embodiment 1.

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Abstract

The invention relates to a video jitter detection method, a terminal device and a storage medium. The method comprises the following steps: S1, two adjacent frames of images are converted to grayscalespace; S2, the image is divided to multiple sub areas; S3, the actual displacement of each sub area relative to the two frames of images is calculated respectively; S4, interference from a moving object is eliminated through standard deviation calculation, and the number n of sub areas actually generating displacement is determined; S5, the jitter value between two frames is calculated; S6, stepsS1 to S5 are repeated, the jitter value between each two frames of images in L frames of images is calculated respectively, and the general jitter value KL of the L frames of images is set to be thesum of the jitter values between each two frames of images in the L frames of images; and S7, whether the KL is larger than a jitter threshold H is judged, if yes, jitter is generated, or otherwise, jitter is not generated. In comparison with methods such as an optical flow method and feature point matching, the calculation amount is smaller, the real-time performance is good, and excellent resistance against interference such as a moving object in a picture is achieved.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to a method for detecting video shaking, a terminal device and a storage medium. Background technique [0002] In recent years, video surveillance has been stimulated and driven by factors such as security projects and the rapid growth of video surveillance demand in various industries, and has achieved rapid development, and the entire market has expanded rapidly. If the monitoring system wants to play its due role, the quality of the transmitted video must be guaranteed, and the monitoring system needs to be operated and maintained. With the continuous development and expansion of the monitoring market, the number of front-end monitoring cameras is increasing, and the workload of manual operation and maintenance is increasing, and the cost is also increasing. Therefore, how to improve the efficiency of the operation and maintenance of the video surveillance system and redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
CPCG06T7/0002G06T2207/10016G06T2207/20021G06T2207/30232
Inventor 杨子扬苏松志蔡国榕
Owner ROPEOK TECHNOLOGY GROUP CO LTD