New CAVLC design for lossless intra coding

Efficient residual coding algorithm based on Hadamard transform in lossless H.264/AVC

“…Hence, it can be used to improve coding efficiency in lossless H.264/AVC. Several studies [9][10][11][12][13][14][15][16][17][18] have been investigated for improving lossless H.264/AVC without using any transforms. Nam and Sim [9] proposed an additional pixel-wise prediction mode to supplement the original intra modes in H.264/AVC.…”

“…The entropy coding methods, context-based adaptive variable length coding (CAVLC) and context-based adaptive binary arithmetic coding (CABAC), were originally designed for lossy coding and are not appropriate for lossless coding in H.264/AVC. Hence, based on the statistical differences of residual data in lossy and lossless coding, Heo et al proposed improved CAVLC coding schemes [11][12][13][14] and improved CABAC coding schemes [15] for lossless H.264/AVC. Lee et al [16] proposed a new intra prediction scheme to partition the 4 × 4 block and apply different prediction directions depending on the block properties.…”

“…Several studies [9–18] have been investigated for improving lossless H.264/AVC without using any transforms. Nam and Sim [9] proposed an additional pixel‐wise prediction mode to supplement the original intra modes in H.264/AVC.…”

Novel CAVLC design for secondary SP-frame

“…In this paper, an modified approach is exploited by re-designing the entropy coding flow specifically for SSP-frame to improve the coding performance. The perspective is inspired by [11], in which J. Heo proposed a new CAVLC scheme for lossless intra coding.…”