US 10,123,029 B2Granted

Method and apparatus for processing video

AssigneeChips & Media, Inc

InventorsWook Je Jeong, Min Yong Jeon, Dong Jin Park

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Abstract

Provided is an apparatus for processing a video. The apparatus for processing a video includes an image receiving module that is configured to receive encoded data, a filtering module that is configured to filter an image frame reconstructed from the encoded image, a block dividing module to divide the filtered image frame into a predetermined block dividing unit, a compression module to compress each of the plurality of blocks, to package the compressed plurality of blocks into a predetermined packaging unit, and to generate lookup table information corresponding to each of the packaged block, a frame buffer memory that is configured to record the packaged data, a first decompression module that is configured to perform first decompression of one or more of the recorded blocks corresponding to a particular frame for motion compensating by using the lookup table information, and a converter that is configured to decompress the recorded blocks to output sequentially by using the lookup table information.

Claims14

Dependent claims

A video processing apparatus for processing motion compensation of a plurality of frames, the video processing apparatus comprising:

an image receiver receiving encoded data;
a filter filtering an image frame reconstructed from the encoded data;
a block divider dividing a reference frame into a plurality of blocks in a predetermined block dividing unit, wherein the reference frame is obtained from the image frame and is transmitted to process the motion compensation module of the plurality of frames;
a compression processor selectively compressing each of the plurality of blocks, which is received from the block divider, in a lossless compression manner on a basis of reduction or non-reduction of bandwidths with respect to a frame buffer memory that contains the reference frame, —packaging the plurality of blocks in a unit of a burst group, wherein a size of the burst group corresponds to a burst length of the frame buffer memory, and generating lookup table information corresponding to each of the plurality of blocks;
the frame buffer memory recording the plurality of blocks, which is packaged, and the lookup table information, and providing the reference frame for the motion compensation by using the plurality of blocks and the lookup table information;
a first decompression processor performing a random access first decompression to one or more of the plurality of blocks corresponding to a particular frame for the motion compensation by using the lookup table information;
a converter sequentially decompressing and outputting the plurality of blocks in a different manner from the first decompression processor by using the lookup table information,
a second decompression processor sequentially decompressing the plurality of blocks;
and
a line buffer temporarily storing the plurality of blocks, which is sequentially decompressed and outputting the same in a raster direction,
wherein the first decompression processor manages the lookup table information by a cache memory.

8 more elements

A video processing method for processing motion compensation of a plurality of frames, the method comprising:

receiving an encoded image;
filtering an image frame reconstructed from the encoded image;
dividing a reference frame into a plurality of blocks in a predetermined block dividing unit;
selectively compressing each of the plurality of blocks in a lossless compression manner on a basis of reduction or non-reduction of bandwidths with respect to a frame buffer memory that contains the reference frame;
packaging the plurality of blocks into in a unit of a burst group, wherein a size of the burst group corresponds to a burst length of the frame buffer memory;
generating lookup table information corresponding to each of the plurality of blocks;
recording the plurality of blocks, which is packaged, and the lookup table information;
providing the reference frame for the motion compensation by using the plurality of blocks and the lookup table information;
performing a random access first decompression to one or more of the plurality of blocks corresponding to a particular frame for the motion compensation by using the lookup table information;
and
sequentially performing second decompression to the plurality of blocks by using the lookup table information,
wherein the step of the second decompression comprises:
sequentially decompressing the recorded blocks;
temporarily storing the plurality of blocks, which is sequentially decompressed;
and
outputting the same in raster scan order, and
wherein the step of the first decompression comprises managing the lookup table information by using a cache memory.

14 more elements

A non-transitory computer readable medium storing a program causing a computer to execute a video processing method, the video processing method for processing motion compensation of a plurality of frames comprising:

receiving an encoded image;
filtering an image frame reconstructed from the encoded image;
dividing a reference frame into a plurality of blocks in a predetermined block dividing unit;
selectively compressing each of the plurality of blocks in a lossless compression manner on a basis of reduction or non-reduction of bandwidths with respect to a frame buffer memory that contains the reference frame;
packaging the plurality of blocks into in a unit of a burst group, wherein a size of the burst group corresponds to a burst length of the frame buffer memory;
generating lookup table information corresponding to each of the plurality of blocks;
recording the plurality of blocks, which is packaged, and the lookup table information;
providing the reference frame for the motion compensation by using the plurality of blocks and the lookup table information;
performing a random access first decompression to one or more of the plurality of blocks corresponding to a particular frame for the motion compensation by using the lookup table information;
and
sequentially performing second decompression to the plurality of blocks by using the lookup table information,
wherein the step of the second decompression comprises:
sequentially decompressing the recorded blocks;
temporarily storing the plurality of blocks, which is sequentially decompressed;
and
outputting the same in raster scan order, and
wherein the step of the first decompression comprises managing the lookup table information by using a cache memory.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/841,321Filed 31 Aug 2015 · continuation
Priority: 2 Apr 2013
Published: US 2016/0057440 A125 Feb 2016
Granted: 6 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04N 19/44
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals: decoders specially adapted therefor, e.g. video…
H04N 19/117
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: filters, e.g. for pre-processing or…
H04N 19/124
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: quantisation
H04N 19/13
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: adaptive entropy coding, e.g. adaptive…

Family

Application61/807,663Us provisional application · filed 2 Apr 2013
PCT/KR2013/007104Parent of this continuation · filed 6 Aug 2013
US 2016/0057440 A1Pre-grant publication · published 25 Feb 2016
US 10,123,029 B2This patent

From the US filing history. Foreign family members aren’t listed.

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