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Vehicle-mounted video image stabilization method

A vehicle-mounted video and image stabilization technology, which is applied in the field of video processing, can solve problems such as large errors in image stabilization technology, achieve smooth motion trajectory, improve the quality of vehicle-mounted video, and facilitate post-processing effects

Active Publication Date: 2017-11-17
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a vehicle-mounted video image stabilization method to solve the problem of large errors in existing image stabilization technologies

Method used

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  • Vehicle-mounted video image stabilization method

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Embodiment Construction

[0026] The embodiment of the present application provides a vehicle-mounted video image stabilization method, which is completed based on the VS2013 platform and Opencv2.4.9 library functions. see figure 1 , is a schematic flow chart of a vehicle-mounted video image stabilization method provided in the embodiment of the present application, as shown in figure 1 As shown, it specifically includes the following steps:

[0027] Step S110: Extract feature points in the video frame sequence.

[0028] Specifically, the on-board video collected by the acquisition device is first converted into a continuous video frame sequence, and then the video frame sequence is sequentially processed by grayscale processing and Gaussian denoising processing, and then feature extraction is performed on two adjacent frames of pictures. Get some feature points on the picture respectively. For example, two adjacent frames of pictures are F 0 and F 1 , choose F 1 is the current frame, F 0 as the...

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Abstract

The application discloses a vehicle-mounted video image stabilization method. The method comprises: extracting feature points in a video frame sequence; matching each two adjacent frames of feature points in the video frame sequence to obtain a set of matched feature point pairs; calculating a matrix parameter of a camera motion model; calculating a horizontal average motion vector of horizontal displacement A and a vertical average motion vector of vertical displacement; calculating a to-be-filtered horizontal motion vector according to the horizontal average motion vector and calculating a to-be-filtered vertical motion vector according to the vertical average motion vector; and carrying out motion compensation on the video frame sequence by using the a to-be-filtered horizontal motion vector and the to-be-filtered vertical motion vector. Therefore, random jittering between successive frames in a video frame sequence is compensated; horizontal and vertical movements occurring during a video shooting process are suppressed; the moving track of the video frame sequence after image stabilization becomes smooth; the vehicle-mounted video quality is improved; and the post processing of the vehicle-mounted video is realized smoothly.

Description

technical field [0001] The present application relates to the technical field of video processing, in particular to a vehicle-mounted video image stabilization method. Background technique [0002] With the wide application of camera systems in photoelectric reconnaissance, handheld mobile devices and surveillance systems, people have higher and higher requirements for the clarity and stability of the captured images. Due to external interference (strong wind, road bumps, etc.), the modern vehicle camera system makes the captured video sequence shift, rotate or even randomly shake in all directions. This kind of video not only has poor visual effect, but also causes video surveillance personnel Fatigue will affect its judgment on observation events, and it will also cause difficulties in the post-processing of image plane information. [0003] The processing of on-board video is mainly electronic image stabilization, and the algorithm of electronic image stabilization inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
CPCH04N23/681H04N23/68
Inventor 翟少磊武明虎席自强曹敏于辉魏龄朱全聪
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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