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Variable TU size is one of the key contributors to significant coding improvements in HEVC over traditional video coding standards. Residual quadtree is employed in HEVC to allow flexibility in TU partitioning while minimizing overhead bits. Flexibility in TU size also increases complexity in encoder dramatically. This paper described implicit transform unit partitioning which is employed in HEVC...
Traditionally, block-based motion estimation (ME) searches for the best motion vector (MV) for one block at a time based upon a pre-defined ME cost. The ME cost is often a function of the best MV and its predictor (MVP). In H.264/AVC, MVP of a block is calculated from MVs of its neighboring blocks in the past. Therefore, the ME decision of a current block is affected by the neighboring blocks in the...
H.264IMPEG-4 AVC allows multiple reference frames and multiple partition types to improve the coding performance at the expense of much higher computation complexity. This paper proposes a fast motion estimation (ME) algorithm to reduce search complexity for this demanding configuration. Our experimental results show that the partition type which gives the lowest matching cost for the reference frame...
This paper presents a joint coding scheme for multi-program video transmission in which the channel capacity is distributed among programs according to their content complexities. The program-dependent bit allocation is achieved by using the same quantization parameter for all the programs at each frame. The joint coding implements a joint rate control which controls the sum of the bit rates for all...
This paper presents a joint coding scheme for multiprogram video transmission in which the channel capacity is distributed among the programs according to the program complexities.
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