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Video image anti-shake method, apparatus and device and storage medium

A video image, anti-shake technology, applied in the direction of image communication, TV, color TV, etc., can solve the problems of time-consuming, complex algorithms, and inability to be practically applied, and achieve the effect of improving efficiency, real-time performance, and improving accuracy

Active Publication Date: 2019-01-11
SHENZHEN WENYAO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many excellent anti-shake algorithms, such as optical flow method, etc., but these algorithms are often too complicated, and it will be seriously time-consuming to implement on embedded devices such as mobile phones, and cannot be practically applied.

Method used

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  • Video image anti-shake method, apparatus and device and storage medium
  • Video image anti-shake method, apparatus and device and storage medium
  • Video image anti-shake method, apparatus and device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 It is a flow chart of the video image stabilization method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of video image stabilization before HDR synthesis. The method can be performed by a video image stabilization device. The device It can be implemented in the form of software and / or hardware, and can be configured in electronic equipment, such as an intelligent terminal equipped with a camera device. see figure 1 , the video image stabilization method provided in this embodiment includes:

[0029] S110. Extract feature points according to preset rules within the entire range of the first frame image, and determine a first feature region of the first frame image according to the feature points.

[0030] Wherein, the first frame image refers to the previous frame image of the two adjacent frame images in the video image, the second frame image refers to the next frame image of the two adjacent frame images ...

Embodiment 2

[0044] figure 2 It is a flow chart of a video image stabilization method provided by Embodiment 2 of the present invention. This embodiment is further optimized on the basis of the foregoing embodiments. see figure 2 , the video image stabilization method provided in this embodiment includes:

[0045] S210. Extract feature points at equal intervals in rows and columns within the entire image of the first frame of image, and determine a first feature region of the first frame of image according to the feature points.

[0046] Exemplarily, for an image with an aspect ratio of 3000*4000, one pixel can be extracted every 40 rows and every 15 columns, and the set of these extracted pixels is the first feature area.

[0047] S220. Within a preset error range, extract a plurality of candidate feature regions corresponding to the first feature region from the second frame image.

[0048] Exemplarily, it is assumed that the feature points of the first frame image are extracted at...

Embodiment 3

[0061] image 3 It is a schematic structural diagram of a video image stabilization device provided in Embodiment 3 of the present invention. The video image anti-shake device provided by the embodiment of the present invention can execute the video image anti-shake method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

[0062] see image 3 The video image stabilization device provided in this embodiment includes: a first feature area acquisition module 10, a second feature area acquisition module 20, an offset calculation module 30, and a compensation module 40, wherein:

[0063] The first feature area acquisition module 10 is configured to extract feature points within the entire image of the first frame image according to preset rules, and determine the first feature area of ​​the first frame image according to the feature points.

[0064] The second feature area acquisition mo...

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Abstract

The present invention discloses a video image anti-shake method, apparatus and device and a storage medium, and relates to the field of digital image processing. The method comprises the steps of: extracting feature points according to a preset rule in a total graph range of a first image, and determining a first feature area of the first image according to the feature points; in a second image adjacent to the first image, calculating a second feature area being similar to the first feature area; calculating the offset of the second image relative to the first image according to the first feature area and the second feature area; and performing compensation for the second image according to the offset. The video image anti-shake method, apparatus and device and the storage medium improve the precision of the feature selection and effectively improve the efficiency and the timeliness of the system.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of digital image processing, and in particular, to a video image stabilization method, device, device, and storage medium. Background technique [0002] In image and video processing work, it is often encountered that jitter causes image or video frame-to-frame pixel misalignment, etc., which degrades image or video quality, such as in the HDR (High-Dynamic Range, high-dynamic range image) process of taking pictures In the process, it is usually necessary to combine multiple frames of pictures with different exposure values ​​into one frame. Due to the shaking of hands when taking pictures, it will inevitably cause ghosting and other phenomena. For another example, when holding a camera with a mobile phone, due to shaking hands, the final shot video may feel shaking when played. Therefore, in order to improve image or video quality, we need to compensate the jitter deviation between tw...

Claims

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Application Information

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IPC IPC(8): H04N5/232
CPCH04N23/6811
Inventor 蒋焘
Owner SHENZHEN WENYAO ELECTRONICS TECH CO LTD
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