Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A video decoder and video decoding technology, applied in digital video signal modification, electrical components, image communication, etc., can solve the problems of large chip area and power consumption, long development cycle, etc., and achieve the effect of reducing module development
Active Publication Date: 2014-08-20
浙江杭海新城控股集团有限公司
View PDF8 Cites 19 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
It can solve the shortcomings of long development cycle and large chip area and power consumption of multi-protocol video decoders in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0057] see figure 1 , is a video decoding method according to an embodiment of the present invention. In this embodiment, the method includes:
[0058] S101. Transform the transformation unit and the prediction unit obtained after decoding the compressed video stream into an M×M residual block and an M×M prediction block, where M=16, 8 or 4.
[0059] Specifically, on the video encoder side, when the video encoder performs HEVC protocol, VP9 protocol or AVS2.0 prot...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a video decoding method which comprises the steps that a converting unit and a prediction unit obtained after video compression bitstream decoding are converted into M * M residual blocks and M * M prediction blocks respectively, wherein M is equal to 16 or 8 or 4, a video compression bitstream comprises one of an HEVC bitstream, a VP9 bitstream and an AVS2.0 bitstream; according to the residual blocks and the prediction blocks, reestablished image blocks are obtained; and the reestablished image blocks are subjected to filtering, and decoding reestablished images are obtained. The invention further discloses a video decoder. Module development of the multi-protocol video decoder is lowered, and the area and the power consumption of the video decoder are lowered.
Description
technical field [0001] The invention relates to the field of image processing, in particular to a video decoding method and a video decoder. Background technique [0002] Video compression technology is widely used in Internet, TV broadcasting, storage media and communication and other fields. Since the MPEG (Motion Pictures Experts Group) standard was established in 1993, after years of inheritance and development, a large number of video compression formats coexist. So far, a commercial video decoder needs to support at least a dozen video compression formats, such as MPEG-1, MPEG-2, MPEG-4, H.263, H.264, H.265, Real8, Real9, VC1 , AVSP2, VP8, VP9 and DIVX etc. This has brought serious challenges to the video decoder, especially the rise of smart devices, which has put forward strict requirements on the area and power consumption of the hardware video decoder. [0003] Protocols before 2013, such as (MPEG-1, MPEG-2, MPEG-4, H.263, H.264, Real8, Real9, VC1, AVSP2, VP8, V...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more