An object-based multi-view video fractal coding compression and decompression method

A multi-view video and fractal coding technology, which is applied in the fields of digital video signal modification, electrical components, image communication, etc., can solve the problem of extracting video objects without accurate segmentation of video, and achieve the effect of reducing matching time and improving search speed.
CN102970529BInactive Publication Date: 2016-02-17南京合检兴智能科技有限公司 +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南京合检兴智能科技有限公司
Publication Date
2016-02-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a multi-viewpoint video fractal coding compressing and uncompressing method based on objects and belongs to the technical field of three-dimensional video coding. A large amount of data of a multi-viewpoint three-dimensional video is compressed efficiently to be stored and transmitted. In a coding process, an interested object in a video is obtained through an automatic partition method and compressed and coded through fast disparity estimation and a method of combining pentagon motion estimation forecast and fractal codes, and data redundancy is effectively reduced. A forecast structure K-L-C-R-S specific to a video of five viewpoints of K, L, C, R and S is provided, namely viewpoints R and L are forecasted through a viewpoint C, the viewpoints S and K are forecasted through the viewpoints R and L respectively, and initial frames of the five viewpoints all use I frame. Decoding viewpoint sequences are the same, and loop filtering is used for removing a blocking effect. Under the condition that a good video decoding quality is obtained, coding speed and compression ratio are greatly increased, high flexibility is obtained, and a foundation is laid for real-time application for multi-viewpoint video coding.
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Description

Technical field:

[0001] The invention belongs to the field of three-dimensional video compression coding, relates to compression coding of multi-viewpoint video, lays a foundation for the real-time application of three-dimensional stereoscopic video coding, and further improves the performance of fractal-based multi-viewpoint stereoscopic video compression coding. Background technique:

[0002] Fractal theory was first applied to image compression, and affine transformation was used for compression coding, which greatly improved the coding efficiency and became the mainstream method in fractal image coding. In recent years, some scholars and researchers have applied the method of fractal image compression to the compression of video sequences. Among them, see the most classic and influential ones (C.S.Kim, R.C.Kim, S.U.Lee. Fractalcodingofvideosequenceusingcircularpredictionmappingandnoncontractiveinterframemapping[J].IEEETransactionsonImageProcessing,1998,7(4):601-605.). T...

Claims

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