Shape-adaptive DCT for generic coding of video

Sikora, Thomas; Makai, B.

doi:10.1109/76.350781

Cited by 204 publications

(93 citation statements)

References 5 publications

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“…In [3], a transform in the spirit of Shape Adaptive DCT (SA-DCT [4]) was developed to represent trapezoidal blocks. The idea is to perform two passes of 1D-DCT, along diagonals and rows.…”

Section: Introductionmentioning

confidence: 99%

Trapezoidal block split using orthogonal C2 transforms for HEVC video coding

Dvir

Allouche

Drezner

et al. 2017

2017 25th European Signal Processing Conference (EUSIPCO)

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Abstract-We present an extension for HEVC intra-frame coding with trapezoidal splits and orthogonal transforms. A block can be split into two 180-degrees rotationally-symmetric (C2) trapezoidal parts, each coded separately using standard DCT implementation. We also introduce part-to-part prediction from a diagonal edge. The optimal trapezoidal split of a quad tree block is selected in a rate-distortion sense. We achieved 0.8% reduction in BD-rate over HEVC in standard test conditions for intra coding.

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“…In [3], a transform in the spirit of Shape Adaptive DCT (SA-DCT [4]) was developed to represent trapezoidal blocks. The idea is to perform two passes of 1D-DCT, along diagonals and rows.…”

Section: Introductionmentioning

confidence: 99%

Trapezoidal block split using orthogonal C2 transforms for HEVC video coding

Dvir

Allouche

Drezner

et al. 2017

2017 25th European Signal Processing Conference (EUSIPCO)

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show abstract

“…It tackles the problem of region-based image coding based on shapeadaptive DCT (SA-DCT) [16], which shows the serious blocking effects at low bit rates. They also propose a color image coding algorithm based on a shape-adaptive all phase biorthogonal transform (SA-APBT).…”

mentioning

confidence: 99%

Advanced Communications and Artificial Intelligence, and Introduction of the JIPS AWARD 2016

2017

J Inf Process Syst

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“…MPEG-4 uses the SA-DCT to support objectbased video texture encoding, which in turn allows object manipulation as well as giving improved compression efficiency [1]. The SA-DCT is more complex compared to the 8x8 DCT in terms of hardware implementation due to the wider range of basis functions and extra data re-alignment steps.…”

Section: Introductionmentioning

confidence: 99%