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Motion-compensation-and-block-based video compressed sensing processing method

A motion compensation and processing method technology, applied in the fields of digital video signal modification, electrical components, image communication, etc., can solve the problems of multiple redundant information, aggravated storage and computational complexity, etc. The effect of video compression

Inactive Publication Date: 2016-10-05
袁琳琳
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Problems solved by technology

However, in order to improve the reconstruction quality of key frames, this method will generate more redundant information and increase the complexity of storage and calculation.

Method used

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  • Motion-compensation-and-block-based video compressed sensing processing method

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Embodiment Construction

[0063] This specific embodiment adopts following technical scheme: its processing method is:

[0064] 1. Block image residual frame reconstruction theory:

[0065] Suppose there are two consecutive video frames: the current frame and its previous frame (reference frame) X ref . Suppose the reference frame X ref The reconstruction has been completed, and there is only a corresponding random observation value Y for the current frame X. First, the CS image reconstruction method based on smooth projection Landweber is used to reconstruct the observed value Y of the current frame to obtain an approximate reconstructed value Obviously, this image reconstruction method does not apply temporal and spatial correlation information between consecutive frames.

[0066] A BCS-SPL video compression and reconstruction method based on motion compensation (MEMC-BCS-SPL for short) is designed. First, learn from the concept of image segmentation, divide the current frame X image into sever...

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Abstract

The invention discloses a motion-compensation-and-block-based video compressed sensing (CS) processing method, and relates to the technical field of a video compressed sensing technology. The processing method comprises the steps: 1) a block image residual error frame reconstruction method; 2) a block CS image residual error frame reconstruction algorithm; and 3) a reference frame method based on bidirectional reconstruction. The motion-compensation-and-block-based video compressed sensing processing method uses a motion-estimation algorithm to analyze the motion vector and the residual error data between video frames, and takes the residual error data between video frames to replace the video frames as the compression reconstruction object, so that the video compression ratio is greatly improved. At the same time, the motion-compensation-and-block-based video compressed sensing processing method mainly utilizes a forward / backward bidirectional reconstruction idea and is supplemented by a dynamic adaptive selection reconstruction algorithm, and automatically operates different video reconstruction algorithms according to the exchanging speed of the video content, so that the calculation complexity and the reconstruction time during the video reconstruction process can be effectively reduced.

Description

Technical field: [0001] The invention relates to a processing method of video compression perception based on motion compensation and block, and belongs to the technical field of video compression perception. Background technique: [0002] Image and video compression technology has always been the focus of research in the field of computer image coding, and plays a decisive role in the storage, transmission and acquisition of images and videos. In recent years, image and video compression technology research based on compressed sensing (CS) has received more and more attention. Compressed sensing theory points out that if a signal has a sparse representation in a certain transform domain, it can be compressed and reconstructed accurately in a manner far below the Nyquist standard. This advantage makes CS theory attract the attention of many research fields, and has achieved encouraging research results in many applied science fields, such as: compression and reconstruction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/51H04N19/513
Inventor 袁琳琳
Owner 袁琳琳
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