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CE7-related: TCQ with high throughput coefficient coding
Abstract
Trellis coded quantization (TCQ) together with a coupled coefficient coding scheme was proposed in [1]. It may degrade CABAC throughput compared with the coefficient coding in HEVC or the current JEM design. To improve the throughput and maintain most of the gain reported in CE7 [2], this contribution proposes a modified TCQ with a coupled coefficient coding scheme. The simulation results show -3.98% AI, -2.58% RA, and -1.80% LDB BD-rate reduction compared with VTM-1.0 anchor, and -1.99% AI, -1.37% RA, and -0.98% LDB BD-rate reduction compared with BMS-1.0.
JVET-K0319 CE7-related: TCQ with high throughput coefficient coding [J. Dong, M. Coban, M. Karczewicz (Qualcomm)]
This is another proposed variation of TCQ (a.k.a. dependent quantization). This was trying to combine the JEM coefficient coding with TCQ. Detailed presentation was not requested, although the proponent may wish to include it in the planned CE.
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Decisions
This is another proposed variation of TCQ (a.k.a. dependent quantization). This was trying to combine the JEM coefficient coding with TCQ. Detailed presentation was not requested, although the proponent may wish to include it in the planned CE.
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