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An Effective CU Size Decision Method for HEVC Encoders
IEEE Transactions on Multimedia, 2013The emerging high efficiency video coding standard (HEVC) adopts the quadtree-structured coding unit (CU). Each CU allows recursive splitting into four equal sub-CUs. At each depth level (CU size), the test model of HEVC (HM) performs motion estimation (ME) with different sizes including 2N × 2N, 2N × N, N × 2N and N × N.
Xinpeng Zhang +2 more
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A Spatiotemporal Content-Based CU Size Decision Algorithm for HEVC
IEEE Transactions on Broadcasting, 2020The high efficiency video coding (HEVC) standard provides superior efficiency for encoding and improves the compression ratio by almost 50% compared with previous video coding standards, such as advanced video coding (AVC). However, more intensive computation complexity is introduced by implementing the flexible quad tree-structured coding model.
Yao-Tsung Kuo +2 more
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A Fast CU Size Decision Algorithm for HEVC
IEEE Transactions on Circuits and Systems for Video Technology, 2015High Efficiency Video Coding (HEVC) employs a coding unit (CU), prediction unit (PU), and transform unit (TU) based on the quadtree coding tree unit (CTU) structure to improve coding efficiency. However, the computational complexity increases greatly because the rate-distortion (RD) optimization process should be performed for all CUs, PUs, and TUs to ...
Jaeho Lee +3 more
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Early Intra CU Size Decision for Versatile Video Coding Based on a Tunable Decision Model
IEEE Transactions on Broadcasting, 2021Versatile video coding (VVC) further improves video coding gain by introducing a new Quad-tree (QT) with nested multi-type tree (QTMT) partition structure, which includes QT partition, horizontal and vertical binary-tree (BT) partition, and horizontal and vertical ternary-tree (TT) partition.
Yue Li 0016 +5 more
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An effective CU size decision method for quality scalability in SHVC
Multimedia Tools and Applications, 2016The Scalable extension of the High Efficiency Video Coding (known as SHVC) combines the high compression efficiency with the possibility of encoding different resolutions of the same encoded video in a single bitstream. However, this is accompanied with a high computational complexity.
Xiaoni Li +4 more
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A Fast CU Size Decision Algorithm for the HEVC Intra Encoder
IEEE Transactions on Circuits and Systems for Video Technology, 2015Intra coding plays a crucial role in the High Efficiency Video Coding (HEVC) standard. It provides the higher coding efficiency than the previous standard, H.264/Advanced Video Coding. The block partitioning in HEVC supports quad-tree-based coding unit (CU) structure from size $64 \times 64$ to $8 \times 8$ .
Biao Min, Ray C. C. Cheung
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Fast CU size decision and PU mode decision algorithm in HEVC intra coding
2015 IEEE International Conference on Image Processing (ICIP), 2015High Efficiency Video Coding (HEVC) is a new video compression standard for high resolution video content, which only needs 50% bit rate of the H.264/AVC at the same perceptual quality. However, high computational complexity increases dramatically for adopting quad-tree structured Coding Unit (CU).
Xiwu Shang +3 more
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CART-based fast CU size decision and mode decision algorithm for 3D-HEVC
Signal, Image and Video Processing, 2018Despite three-dimensional high efficiency video coding (3D-HEVC) has a good performance of 3D video coding and synthesized views, the recursive splitting process of the largest coding unit (LCU) and the best mode deciding process caused huge computational complexity.
Ruihai Jing +5 more
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Fast intra coding based on CU size decision and direction mode decision for HEVC
Multimedia Tools and Applications, 2017High Efficiency Video Coding (HEVC) adopts a quad-tree structured coding unit (CU) and more prediction unit (PU) modes are used in all CU depth levels. These improvements bring better coding performance, but the exhaustive search process for optimal CU and PU selection causes higher computational complexity than earlier standards.
Yue Ma +3 more
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Accelerated CU decision based on enlarged CU sizes for HEVC UHD videos
2016 IEEE International Conference on Signal and Image Processing (ICSIP), 2016High Efficiency Video Coding (HEVC) is the latest video coding standard and has achieved 50% better compression performance compared to prior video standards competing with (2K, 4K, and 8K) video resolutions. HEVC adopts flexible quad-tree structure, resulting 60% of inter prediction complexity.
Malik Asfandyar +2 more
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