The Experts below are selected from a list of 132 Experts worldwide ranked by ideXlab platform
ワン イェ クイ - One of the best experts on this subject based on the ideXlab platform.
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decoded Picture Buffer operation for video coding
2014Co-Authors: ラマスブラモニアン アダルシュ クリシュナン, チェン イン, ワン イェ クイAbstract:And it is divided decoded Picture Buffer (DPB) into a plurality of sub-DPB, one or more of the at least one receiving the indication of the sub-DPB size for sub-DPB for multiple operations points of the multi-layer video coding process it and a method for decoding video data and a allocating a memory space for a plurality of sub-DPB based on at least one instruction for. .BACKGROUND 9
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multiresolution decoded Picture Buffer management for multi layer video coding
2014Co-Authors: チェン イン, ワン イェ クイAbstract:This disclosure describes various methods and techniques for the decoded Picture Buffer (DPB) Administration when you require several decoding layer components having different resolutions are stored. In one example, a method of coding video data, and decoding the video data to generate a plurality of decoded layers components, and storing the decoded layer components into one or more sub-units of the DPB, one or comprising and performing DPB management process for a plurality of sub-units, wherein, DPB management process, are separately managed for each of one or more sub-unit.
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sequence level flag for sub Picture level coding Picture Buffer parameters
2013Co-Authors: ワン イェ クイAbstract:Video coding device, such as a video encoder or decoder, in either in decoder unit (DU) Picture timing Supplemental Enhancement information associated with (SEI) message or sub-Picture timing SEI message, DU access unit (AU) It may be configured to decode the sequence level flag for determining the presence of one or more sub-Picture level coding Picture Buffer (CPB) parameters for. Coding device, based on the sequence level flag from the Picture timing SEI message or sub-Picture timing SEI message, it is also possible to decode the one or more sub-Picture level CPB parameters.
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coded Picture Buffer arrival and the nominal removal time of video coding
2013Co-Authors: ワン イェ クイAbstract:Video coding device, such as a video decoder, the decoder unit (DU) regardless of the value of the syntax element that defines whether an entire AU, both the access unit level and sub-Picture level, the access unit (AU) It may be configured to derive at least one of the coded Picture Buffer (CPB) arrival time and CPB nominal removal time. Video coding device further based at least in part on one of the CPB arrival time and CPB nominal removal time, to determine the removal time of AU, based at least in part on the removal time, decodes the video data of AU It may be configured to.
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access unit independent coded Picture Buffer removal time of video coding
2013Co-Authors: ワン イェ クイAbstract:Video coding device, such as a video encoder or video decoder, coding the duration between the access unit (AU) first decoding unit (DU) and encoding Picture Buffer and the second DU (CPB) removal time in it can be configured to, wherein the second DU, in decoding order, and after the first DU, is in the same AU in the first DU. Video coding device, based at least on the encoding duration, it is possible to further determine the removal time of the DU. Coding device may also be coded sub-Picture timing Supplemental Enhancement Information (SEI) message associated with the first DU. Video coding device can at least partially based on the sub-Picture timing SEI message, to further determine the removal time of the DU.
Tae-jun Jung - One of the best experts on this subject based on the ideXlab platform.
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An Efficient DPB Design Scheme for Scalable Multi-view Video Coding Using GPB Mechanism
Journal of Broadcast Engineering, 2015Co-Authors: Tae-jun Jung, Myung Pil KoAbstract:본 논문에서는 효율적인 스케일러블 다시점 비디오 부호화를 수행하기 위해 필요한 참조화면 재순서화, 마킹 프로세스, 참조픽처 리스트 구성을 포함하는 DPB (Decoded Picture Buffer) 작동을 위한 새로운 설계 방법을 제안한다. 다양한 실험 결과를 통해서 제안된 방법에 의해 스케일러블 다시점 비디오 부호화에 있어서 개선된 압축효율을 얻을 수 있고 BD-Rate 및 BD-PSNR 측면에서 향상된 비디오 화질을 얻을 수 있음을 확인한다.
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ICCE - Design schemes for scalable multi-view video coding using GPB
2015 IEEE International Conference on Consumer Electronics (ICCE), 2015Co-Authors: Tae-jun JungAbstract:In this paper, we propose novel design schemes for the operation of Decoded Picture Buffer (DPB) including reference Picture re-ordering, marking process, and reference Picture list construction to perform an efficient scalable multi-view video coding. Extensive simulations show that the proposed method can provide advanced compression efficiency and improved video quality measured in terms of BD-Rate and BD-PSNR for the scalable multi-view video coding.
Jinshun Huang - One of the best experts on this subject based on the ideXlab platform.
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decoder Picture Buffer reduction based effective reference frame selection algorithm for multiview video coding
Visual Communications and Image Processing, 2011Co-Authors: Jinshun HuangAbstract:To achieve compression efficiency for multi-view video coding (MVC), Joint Video Team (JVT) uses the hierarchical B Picture (HBP) coding structure which based on MPEG-4 AVC/H.264 codec. The HBP structure develops a new compression tool inter-view prediction to reduce residual of the data in motion estimation. However, the exhaustive search for inter-view and temporal prediction coding by all reference frames will cause the encoder to take high computational time and large decoded Picture Buffer size. To solve above problems, this paper proposes an effective reference frame selection algorithm for motion estimation in MVC prediction coding. The proposed algorithm uses the relationship of between the motion degrees and its prediction direction to select the prediction reference frame in inter-view or temporal domain. The proposed architecture can save the Buffer requirement in decoder, because of the decoded Buffer only stores the MBs in the referenced region. The experimental results show that the encoding time for the main-view and the auxiliary-view are saved up to 33.56%, and 51.24%, respectively. The decoded Picture Buffer reduces to 47%. The proposed method not only achieves the low computational complexity but also reduces the decoded Buffer size while maintain high quality.
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VCIP - Decoder Picture Buffer reduction based effective reference frame selection algorithm for multiview video coding
2011 Visual Communications and Image Processing (VCIP), 2011Co-Authors: Jinshun HuangAbstract:To achieve compression efficiency for multi-view video coding (MVC), Joint Video Team (JVT) uses the hierarchical B Picture (HBP) coding structure which based on MPEG-4 AVC/H.264 codec. The HBP structure develops a new compression tool inter-view prediction to reduce residual of the data in motion estimation. However, the exhaustive search for inter-view and temporal prediction coding by all reference frames will cause the encoder to take high computational time and large decoded Picture Buffer size. To solve above problems, this paper proposes an effective reference frame selection algorithm for motion estimation in MVC prediction coding. The proposed algorithm uses the relationship of between the motion degrees and its prediction direction to select the prediction reference frame in inter-view or temporal domain. The proposed architecture can save the Buffer requirement in decoder, because of the decoded Buffer only stores the MBs in the referenced region. The experimental results show that the encoding time for the main-view and the auxiliary-view are saved up to 33.56%, and 51.24%, respectively. The decoded Picture Buffer reduces to 47%. The proposed method not only achieves the low computational complexity but also reduces the decoded Buffer size while maintain high quality.
チェン イン - One of the best experts on this subject based on the ideXlab platform.
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decoded Picture Buffer operation for video coding
2014Co-Authors: ラマスブラモニアン アダルシュ クリシュナン, チェン イン, ワン イェ クイAbstract:And it is divided decoded Picture Buffer (DPB) into a plurality of sub-DPB, one or more of the at least one receiving the indication of the sub-DPB size for sub-DPB for multiple operations points of the multi-layer video coding process it and a method for decoding video data and a allocating a memory space for a plurality of sub-DPB based on at least one instruction for. .BACKGROUND 9
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multiresolution decoded Picture Buffer management for multi layer video coding
2014Co-Authors: チェン イン, ワン イェ クイAbstract:This disclosure describes various methods and techniques for the decoded Picture Buffer (DPB) Administration when you require several decoding layer components having different resolutions are stored. In one example, a method of coding video data, and decoding the video data to generate a plurality of decoded layers components, and storing the decoded layer components into one or more sub-units of the DPB, one or comprising and performing DPB management process for a plurality of sub-units, wherein, DPB management process, are separately managed for each of one or more sub-unit.
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advanced decoded Picture Buffer in video coding dpb random access by management
2012Co-Authors: チェン イン, ワン イェ クイ, チェン ジャンレAbstract:As an example, a technique for decoding video data, comprising: receiving a bitstream comprising one or more Pictures of the coded video sequence (CVS), by decoding order, not instantaneous decoding refresh (IDR) Picture and decoding the first Picture is a random access point (RAP) Picture, by decoding based at least one other Picture comes after the first Picture by decoding order, the first Picture is decoded including the door. As another example, techniques for encoding video data, and generating a bit stream including one or more Pictures of CVS, the first Picture by the decoding order is not the IDR Picture RAP a Picture, and it corresponds to the previous Picture associated with the first Picture, and a avoiding the inclusion of at least one other Picture other than the first Picture in the bitstream.
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reference Picture signaling and decoded Picture Buffer management
2012Co-Authors: チェン イン, ワン イェ クイAbstract:For techniques related to the implementation of the random access starting from the random access point Picture not instantaneous decoder refresh Picture, described. Several techniques are also related to the reduction of the amount of information signaled for long reference Picture of the reference Picture set. Additional techniques, such as deleting a decoded Picture based on temporal identification value, also relates to a decoded Picture Buffer management.
Bruhanth Mallik - One of the best experts on this subject based on the ideXlab platform.
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Mixed-resolution HEVC based multiview video codec for low bitrate transmission
Multimedia Tools and Applications, 2019Co-Authors: Bruhanth Mallik, Akbar Sheikh-akbari, Ah-lian KorAbstract:There has been increasing demand for multiview video transmission over band limited channel over past years and various techniques have been proposed to fulfil this need. In this paper, a High Efficiency Video Codec (HEVC) based spatial resolution scaling type of mixed resolution coding model, MRHEVC-MVC, for frame interleaved multiview videos is presented. However, enabling the HEVC to encode video with different frame resolutions is a challenge due to the coding tree partitioning used by the codec. This has been overcome by super-imposing the low resolution replica of each full resolution frame on their respective decoded Picture Buffer and setting the remaining space of the frame Buffer to zero. The codec’s reference frames structure is designed to efficiently encode frame interleaved multiview videos using a HEVC based mixed resolution codec. The proposed MRHEVC-MVC codec has been tested against the standard multiview extension of high efficiency video codec (MV-HEVC) for “Balloon”, “Newspaper1”, “Undo_Dancer”, “Kendo” and ““Poznan_Street” standard multiview video sequences. Results show that the proposed codec gives significantly higher coding performance to that of the MV-HEVC codec at low bitrate both subjectively and objectively.
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HEVC based mixed-resolution stereo video coding for low bitrate transmission
2017 IEEE International Conference on Imaging Systems and Techniques (IST), 2017Co-Authors: Bruhanth Mallik, Akbar Sheikh AkbariAbstract:This paper presents a mixed resolution stereo video coding model for High Efficiency Video Codec (HEVC). The challenging aspects of mixed resolution video coding are enabling the codec to encode frames with different frame resolution/size and using decoded Pictures having different frame resolution/size for referencing. These challenges are further enlarged when implemented using HEVC, since the incoming video frames are subdivided into coding tree units. The ingenuity of the proposed codec's design, is that the information in intermediate frames are down-sampled and yet the frames can retain the original resolution. To enable random access to full resolution decoded frame in the decoded Picture Buffer as reference frame a downsampled version of the decoded full resolution frame is used. The test video sequences were coded using the proposed codec and standard MV-HEVC. Results show that the proposed codec gives a significantly higher coding performance over the MV-HEVC codec.
