公开(公告)号：US10609386B2

公开(公告)日：2020-03-31

申请号：US16262862

申请日：2019-01-30

申请人： Velos Media, LLC

发明人： Yukinobu Yasugi

IPC分类号： H04N11/02 ,  H04N19/159 ,  H04N19/176 ,  H04N19/147 ,  H04N19/196 ,  H04N19/11 ,  H04N19/463 ,  H04N19/593 ,  H04N19/50 ,  H04N19/105 ,  H04N19/46

摘要： A coding device and a decoding device are configured to include an estimated prediction mode deciding section (122a) including: a reference block selecting section (1223a) for selecting a reference block for use in estimating an intra-prediction mode for a subject block; an estimating number deciding section (1222a) for deciding an estimating number of estimated values to be estimated for the intra-prediction mode; and an estimated prediction mode deriving section (1221a) for estimating, based on a reference block, the estimating number of estimated values of the prediction mode.

公开(公告)号：US10542285B2

公开(公告)日：2020-01-21

申请号：US16032637

申请日：2018-07-11

申请人： Velos Media, LLC

发明人： Ye-Kui Wang ,  Ying Chen

IPC分类号： H04N7/12 ,  H04N19/58 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/463 ,  H04N19/174 ,  H04N19/50

摘要： Techniques are described related to output and removal of decoded pictures from a decoded picture buffer (DPB). The example techniques may remove a decoded picture from the DPB prior to coding a current picture. For instance, the example techniques may remove the decoded picture if that decoded picture is not identified in the reference picture set of the current picture.

公开(公告)号：US10484708B2

公开(公告)日：2019-11-19

申请号：US16135900

申请日：2018-09-19

申请人： Velos Media, LLC

发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu

IPC分类号： H04N7/12 ,  H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/61 ,  H04N19/463 ,  H04N19/65 ,  H04N19/577

摘要： An image coding method bitstream includes: determining a maximum number of a merging candidate which is a combination of a prediction direction, a motion vector, and a reference picture index for use in coding of a current block; deriving a first merging candidate; determining whether or not a total number of the first merging candidate is smaller than the maximum number; deriving a second merging candidate when it is determined that the total number of the first merging candidate is smaller than the maximum number; selecting a merging candidate for use in the coding of the current block from the first merging candidate and the second merging candidate; and coding, using the maximum number, an index for identifying the selected merging candidate, and attaching the coded index to the bitstream.

公开(公告)号：US10456635B2

公开(公告)日：2019-10-29

申请号：US15803992

申请日：2017-11-06

申请人： VELOS MEDIA, LLC

发明人： Rickard Sjöberg ,  Clinton Priddle

IPC分类号： A63B53/04 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/91 ,  H04N19/174 ,  H04N19/182 ,  H04N19/30 ,  H04N19/31 ,  H04N19/33 ,  H04N19/196 ,  H04N19/436 ,  A63B60/54

摘要： A picture with multiple slices is encoded by generating a coded slice representation for each of the slices. A slice flag is set to a first value for the first slice in the picture and corresponding slice flags of the remaining slices are set to a second defined value. A respective slice address is generated for each remaining slice to enable identification of the slice start position within the picture for the slice. A coded picture representation of the picture comprises the coded slice representations, the slice addresses and the slice flags. The slice flags enable differentiation between slices for which slice addresses are required and the slice per picture for which no slice address is needed to identify its slice start position.

公开(公告)号：US10368070B2

公开(公告)日：2019-07-30

申请号：US15656048

申请日：2017-07-21

申请人： Velos Media, LLC

发明人： Kazushi Sato

IPC分类号： G06K9/00 ,  H04N19/124 ,  G06T9/00 ,  H04N19/176 ,  H04N19/70 ,  H04N19/172 ,  H04N19/122 ,  H04N19/61 ,  H04N19/463 ,  H04N19/126 ,  H04N19/115 ,  H04N19/129 ,  H04N7/52 ,  H04N19/615 ,  H04N19/177 ,  H04N19/82 ,  H04N19/18

摘要： An image processing device includes a buffer for receiving encoded image data, and a processor to execute instructions that cause the processor to: decode the encoded image data from the buffer to generate quantized transform coefficient data; inversely quantize the quantized transform coefficient data using a 32×32 quantization matrix to generate predicted error data, the 32×32 quantization matrix includes a duplicate of at least one of two elements adjacent to each other from an 8×8 quantization matrix; and combine the predicted error data with a predicted image to generate decoded image data.

公开(公告)号：US10341662B2

公开(公告)日：2019-07-02

申请号：US14996547

申请日：2016-01-15

申请人： Velos Media, LLC

发明人： Kiran Misra ,  Christopher A. Segall

IPC分类号： H04N19/13 ,  H04N19/196 ,  H04N19/184 ,  H04N19/46 ,  H04N19/129 ,  H04N19/174 ,  H04N19/436 ,  H04N19/105 ,  H04N19/124 ,  H04N19/159 ,  H04N19/51 ,  H04N19/61 ,  H04N19/86

摘要： Aspects of the present invention are related to systems and methods for initialization of entropy encoders and decoders.

公开(公告)号：US10271070B2

公开(公告)日：2019-04-23

申请号：US15192027

申请日：2016-06-24

申请人： Velos Media, LLC

发明人： Ohji Nakagami ,  Kazushi Sato ,  Yoichi Yagasaki

IPC分类号： G06K9/36 ,  H04N19/86 ,  H04N19/117 ,  H04N19/124 ,  H04N19/14 ,  H04N19/157 ,  H04N19/80 ,  H04N19/176

摘要： There is provided an image processing system and an image processing method able to suppress block distortion in the case of decoding image data encoded in unit of blocks. A controlling unit selects a filtering content to be applied to the block image data based on the encoding types of the block image data to be filtered, and a filtering unit applies filtering to the block image data to be processed according to the filtering content selected by the controlling unit.

公开(公告)号：US10250875B2

公开(公告)日：2019-04-02

申请号：US15645797

申请日：2017-07-10

申请人： VELOS MEDIA, LLC

发明人： Sachin G. Deshpande ,  Christopher A. Segall

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/105 ,  H04N19/70 ,  H04N19/46 ,  H04N19/573 ,  H04N19/58 ,  H04N19/503 ,  H04N19/159 ,  H04N19/172 ,  H04N19/44 ,  H04N19/577

摘要： A system for decoding a video bitstream includes receiving a reference picture set associated with a frame including a set of reference picture identifiers. The reference picture set identifies one or more reference pictures to be used for inter-prediction of the frame based upon its associated least significant bits of a picture order count based upon the reference picture identifiers. The one or more reference pictures is a second or greater previous frame to the frame having the matching reference picture identifier.

公开(公告)号：US10225581B2

公开(公告)日：2019-03-05

申请号：US15899792

申请日：2018-02-20

申请人： Velos Media, LLC

发明人： Peisong Chen ,  Marta Karczewicz ,  Yan Ye

IPC分类号： G01R31/08 ,  G06F11/00 ,  H04J1/16 ,  H04N19/70 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/103 ,  H04N19/44

摘要： Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16×16 pixels. In one example, an apparatus includes a video encoder configured to encode a coded unit comprising a plurality of video blocks, wherein at least one of the plurality of video blocks comprises a size of more than 16×16 pixels and to generate syntax information for the coded unit that includes a maximum size value, wherein the maximum size value indicates a size of a largest one of the plurality of video blocks in the coded unit. The syntax information may also include a minimum size value. In this manner, the encoder may indicate to a decoder the proper syntax decoder to apply to the coded unit.

公开(公告)号：US10148960B2

公开(公告)日：2018-12-04

申请号：US15252824

申请日：2016-08-31

申请人： SONY CORPORATION

发明人： Jun Xu ,  Kazushi Sato ,  Ehsan Maani

IPC分类号： H04N7/26 ,  H04N19/124 ,  H04N19/70 ,  H04N19/149 ,  H04N19/126 ,  H04N19/186 ,  H04N19/176 ,  H04N19/147 ,  H04N19/61 ,  H04N19/174 ,  H04N19/13 ,  H04N19/159 ,  H04N19/80 ,  H04N19/436 ,  H04N19/172

摘要： The quantization parameters (QP) for Chroma are extended up to and more preferably to the same range as Luma QP (e.g., 0 to 51). Previous, values of Chroma QP only extended up to 39. Techniques are provided for determining extended Chroma QP values (e.g., for Cr and Cb) based on the Luma QP and picture level chroma offsets. In one preferred embodiment, slice level offsets are added making the method particularly well-suited for slice level parallel processing. The extension of Chroma QP enhances functionality, flexibility and friendliness of the High Efficiency Video Coding (HEVC) standard for various applications.