Adaptive coefficient scanning for video coding

Y Ye, M Karczewicz - US Patent 8,488,668, 2013 - Google Patents
PREDICTIONMODE, PARTITION SIZE AND MOTION WECTORS adjustment to the scan
order can be made in order to better ensure that non-Zero coefficients are grouped together …

Improved H. 264 intra coding based on bi-directional intra prediction, directional transform, and adaptive coefficient scanning

Y Ye, M Karczewicz - 2008 15th IEEE International Conference …, 2008 - ieeexplore.ieee.org
In this paper, a novel intra coding scheme is proposed. The proposed scheme improves H.
264 intra coding from three aspects: 1) H. 264 intra prediction is enhanced with additional bi …

Improved video compression efficiency through flexible unit representation and corresponding extension of coding tools

WJ Han, J Min, IK Kim, E Alshina… - … on Circuits and …, 2010 - ieeexplore.ieee.org
This paper proposes a novel video compression scheme based on a highly flexible
hierarchy of unit representation which includes three block concepts: coding unit (CU) …

Separable directional transforms

Y Ye, M Karczewicz - US Patent 8,619,853, 2013 - Google Patents
This disclosure describes techniques for transforming residual blocks of video data. In
particular, a plurality of different transforms selectively applied to the residual blocks based …

Adaptive coefficient scanning in video coding

Y Ye, M Karczewicz - US Patent 8,571,104, 2013 - Google Patents
Related US Application Dat e pplication Uata Primary Examiner—Gregory Sefcheck (60)
Provisional application No. 61/030,443, filed on Feb.(74) Attorney, Agent, or Firm—Todd E …

Coding of transform coefficients for video coding

JS Rojals, RL Joshi, M Karczewicz - US Patent 10,499,059, 2019 - Google Patents
This disclosure describes techniques for coding transform coefficients associated with a
block of residual video data in a video coding process. Aspects of this disclosure include the …

Separable directional transforms

Y Ye, M Karczewicz - US Patent 9,578,331, 2017 - Google Patents
This disclosure describes techniques for transforming residual blocks of video data. In
particular, a plurality of different transforms selectively applied to the residual blocks based …

Adaptive coding of video block prediction mode

Y Ye, M Karczewicz - US Patent 8,428,133, 2013 - Google Patents
This disclosure describes techniques for coding of header information of video blocks. In
particular, the techniques of this disclosure select one of a plurality of prediction modes for …

Multiple predictor sets for intra-frame coding

L Liu - US Patent 8,588,303, 2013 - Google Patents
An apparatus comprising a processor configured to receive a current block of an image,
select an optimal prediction mode of a plurality of prediction modes for the current block …

Separately coding the position of a last significant coefficient of a video block in video coding

JS Rojals, RL Joshi, M Karczewicz - US Patent 8,976,861, 2015 - Google Patents
US PATENT DOCUMENTS FOREIGN PATENT DOCUMENTS 5,583,657 A 12/1996 Jeong
5,631,744 A 5, 1997 Takeuchi et al. EP 2182732 A1 5, 2010 5,818,877. A 10/1998 Tsai et al …