公开(公告)号：US10418002B2

公开(公告)日：2019-09-17

申请号：US15786240

申请日：2017-10-17

Applicant: MEDIATEK INC.

Inventor： Ping Chao ,  Ting-An Lin ,  Tung-Hsing Wu ,  Kung-Tsun Yang ,  Wan-Yu Chen ,  Chuang-Chi Chiou ,  Ping-yao Wang ,  Wei-Gen Wu ,  Hsin-Hao Chung ,  Chih-Ming Wang ,  Han-Liang Chou ,  Chung Hsien Lee ,  Yung-Chang Chang ,  Chi-Cheng Ju

IPC: G09G5/393 ,  G09G5/395 ,  H04N19/423 ,  G09G5/39 ,  H04N19/426 ,  H04N19/39 ,  H04N19/59 ,  G06F13/16 ,  H04N1/32

Abstract: Aspects of the disclosure provide a method for merging compressed access units according to compression rates and/or positions of the respective compressed access units. The method can include receiving a sequence of compressed access units corresponding to a sequence of raw access units partitioned from an image or a video frame and corresponding to a sequence of memory spaces in a frame buffer, determining a merged access unit including at least two consecutive compressed access units based on compression rates and/or positions of the sequence of compressed access units. The merged access unit is to be stored in the frame buffer with a reduced gap between the at least two consecutive compressed access units compared with storing the at least two consecutive compressed access units in corresponding memory spaces in the sequence of memory spaces.

公开(公告)号：US09098887B2

公开(公告)日：2015-08-04

申请号：US14048060

申请日：2013-10-08

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Kun-Bin Lee ,  Han-Liang Chou ,  Ting-An Lin ,  Chi-Cheng Ju

IPC: G06K9/00 ,  G06T9/00

CPC classification number: G06T9/00 ,  H04N19/182 ,  H04N19/186 ,  H04N19/88

Abstract: An image compression method includes at least the following steps: receiving a plurality of pixels of a frame, wherein pixel data of each pixel has a plurality of color channel data corresponding to a plurality of different color channels, respectively; encoding the pixel data of each pixel and generating bit-streams corresponding to the plurality of color channel data of the pixel, wherein the bit-streams corresponding to the plurality of color channel data of the pixel are separated; packing bit-streams of a same color channel data of different pixels into color channel bit-stream segments, wherein each of the bit-stream segments has a same predetermined size; and concatenating color channel bit-stream segments of the different color channels into a final bit-stream. Alternatively, color channel bit-stream segments of the same pixel are concatenated into a concatenated bit-stream portion, and concatenated bit-stream portions of different pixels are concatenated into a final bit-stream.

Abstract translation: 图像压缩方法至少包括以下步骤：接收帧的多个像素，其中每个像素的像素数据分别具有对应于多个不同颜色通道的多个颜色通道数据; 编码每个像素的像素数据并生成与像素的多个彩色通道数据相对应的位流，其中对应于该像素的多个彩色通道数据的位流被分离; 将不同像素的相同颜色通道数据的比特流打包成彩色通道比特流片段，其中每个比特流片段具有相同的预定大小; 以及将不同颜色通道的色彩通道位流段连接成最终位流。 或者，相同像素的色彩通道比特流片段被级联成级联的比特流部分，并且不同像素的级联的比特流部分被级联成最终比特流。

公开(公告)号：US20140105493A1

公开(公告)日：2014-04-17

申请号：US14048060

申请日：2013-10-08

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Kun-Bin Lee ,  Han-Liang Chou ,  Ting-An Lin ,  Chi-Cheng Ju

IPC: G06T9/00

CPC classification number: G06T9/00 ,  H04N19/182 ,  H04N19/186 ,  H04N19/88

Abstract: An image compression method includes at least the following steps: receiving a plurality of pixels of a frame, wherein pixel data of each pixel has a plurality of color channel data corresponding to a plurality of different color channels, respectively; encoding the pixel data of each pixel and generating bit-streams corresponding to the plurality of color channel data of the pixel, wherein the bit-streams corresponding to the plurality of color channel data of the pixel are separated; packing bit-streams of a same color channel data of different pixels into color channel bit-stream segments, wherein each of the bit-stream segments has a same predetermined size; and concatenating color channel bit-stream segments of the different color channels into a final bit-stream. Alternatively, color channel bit-stream segments of the same pixel are concatenated into a concatenated bit-stream portion, and concatenated bit-stream portions of different pixels are concatenated into a final bit-stream.

Abstract translation: 图像压缩方法至少包括以下步骤：接收帧的多个像素，其中每个像素的像素数据分别具有对应于多个不同颜色通道的多个颜色通道数据; 编码每个像素的像素数据并生成与像素的多个彩色通道数据相对应的位流，其中对应于该像素的多个彩色通道数据的位流被分离; 将不同像素的相同颜色通道数据的比特流打包成彩色通道比特流片段，其中每个比特流片段具有相同的预定大小; 以及将不同颜色通道的色彩通道位流段连接成最终位流。 或者，相同像素的色彩通道比特流片段被级联成级联的比特流部分，并且不同像素的级联的比特流部分被级联成最终比特流。

公开(公告)号：US20190281320A1

公开(公告)日：2019-09-12

申请号：US16280039

申请日：2019-02-20

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Ting-An Lin ,  I-Hsuan Lee ,  Han-Liang Chou

IPC: H04N19/60 ,  H04N19/88 ,  H04N19/119 ,  H04N19/184 ,  H04N19/176

Abstract: An encoding method is used for encoding an image. The image includes a plurality of blocks each having a plurality of pixels. The encoding method includes: encoding a plurality of data partitions of block data of a block in the image to generate a plurality of compressed bitstream segments, respectively; and combining the compressed bitstream segments to generate an output bitstream of the block. A bit group based interleaving process is involved in generating the output bitstream. According to the bit group based interleaving process, each of the compressed bitstream segments is divided into a plurality of bit groups each having at least one bit, and the output bitstream includes consecutive bit groups belonging to different compressed bitstream segments, respectively.

公开(公告)号：US10057590B2

公开(公告)日：2018-08-21

申请号：US15265896

申请日：2016-09-15

Applicant: MediaTek Inc.

Inventor： Chao-Chih Huang ,  Ting-An Lin ,  Shen-Kai Chang ,  Han-Liang Chou

IPC: H04N7/12 ,  H04N19/42 ,  H04N19/43 ,  H04N19/433 ,  H04N19/423

CPC classification number: H04N19/439 ,  H04N19/42 ,  H04N19/423 ,  H04N19/43 ,  H04N19/433

Abstract: A hybrid video encoding method and system using a software engine and a hardware engine. The software engine receives coding unit data associated with a current picture, and performs a first part of the video encoding operation by executing instructions. The first part of the video encoding operation generates an inter predictor and control information corresponding to the coding unit data of the current picture. The first part of the video encoding operation stores the inter predictor into an off-chip memory. The hardware engine performs a second part of the video encoding operation according to the control information. The second part of the video encoding operation receives the inter predictor, and subtracts the inter predictor from the coding unit data to generate a residual signal. The second part of the video encoding operation then transforms and quantizes the residual signal to generate transformed and quantized residual signal, and encodes the transformed and quantized residual signal to generate an encoded video bitstream.

公开(公告)号：US20160119642A1

公开(公告)日：2016-04-28

申请号：US14887317

申请日：2015-10-19

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Han-Liang Chou ,  Ting-An Lin

IPC: H04N19/59 ,  H04N19/176 ,  H04N19/426 ,  H04N19/172

CPC classification number: H04N19/59 ,  H04N19/105 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/426 ,  H04N19/503 ,  H04N19/53

Abstract: An encoding method includes applying a search range constraint on a search range of a block in a current frame, and encoding the block in the current frame with pixel information in a reference frame according to inter prediction performed based on the search range of the block in the current frame, wherein a resolution of the current frame is different from a resolution of the reference frame.

Abstract translation: 编码方法包括对当前帧中的块的搜索范围应用搜索范围约束，并且根据基于块的搜索范围进行的帧间预测对参考帧中的像素信息对当前帧中的块进行编码 当前帧，其中当前帧的分辨率不同于参考帧的分辨率。

公开(公告)号：US20140247165A1

公开(公告)日：2014-09-04

申请号：US13784786

申请日：2013-03-04

Applicant: MEDIATEK INC.

Inventor： Ting-An Lin ,  Han-Liang Chou ,  Kun-Bin Lee ,  Yi-Hau Chen ,  Chi-Cheng Ju ,  Yen-Chieh Lai

IPC: H03M7/00

CPC classification number: H03M7/40 ,  H03M7/30 ,  H03M7/4006 ,  H03M7/4031

Abstract: A method for generating a decoded value from a codeword which is binarized utilizing a concatenated unary/k-th order Exp-Golomb code includes: identifying a first portion of the codeword, a second portion of the codeword and a third portion of the codeword; generating an offset according to the second portion; decoding the third portion to generate an index value; and generating the decoded value by adding the offset and the index value.

Abstract translation: 一种从码字生成解码值的方法，该码字使用级联的一元/第k阶Exp-Golomb码二进制化，包括：识别码字的第一部分，码字的第二部分和码字的第三部分; 根据第二部分产生偏移; 解码第三部分以产生索引值; 并通过加上偏移量和索引值来生成解码值。

公开(公告)号：US20210195207A1

公开(公告)日：2021-06-24

申请号：US17190409

申请日：2021-03-03

Applicant: MEDIATEK INC.

Inventor： Li-Heng Chen ,  Tung-Hsing Wu ,  Yi-Hsin Huang ,  Lien-Fei Chen ,  Ting-An Lin ,  Han-Liang Chou

IPC: H04N19/15 ,  H04N19/105 ,  H04N19/172 ,  H04N19/159 ,  H04N19/184 ,  H04N19/463

Abstract: A video encoding apparatus includes a data buffer and a video encoding circuit. Encoding of a first frame includes: deriving reference pixels of a reference frame from reconstructed pixels of the first frame, respectively, and storing reference pixel data into the data buffer for inter prediction, wherein the reference pixel data include information of pixel values of the reference pixels. Encoding of a second frame includes performing prediction upon a coding unit in the second frame to determine a target predictor for the coding unit. The prediction performed upon the coding unit includes: determining the target predictor for the coding unit according to whether a search range on the reference frame for finding a predictor of the coding unit under an inter prediction mode includes at least one reference pixel of the reference frame that is not accessible to the video encoding circuit.

公开(公告)号：US20140133574A1

公开(公告)日：2014-05-15

申请号：US14011002

申请日：2013-08-27

Applicant: MEDIATEK INC.

Inventor： Kun-Bin Lee ,  Ting-An Lin ,  Tung-Hsing Wu

IPC: H04N7/30

CPC classification number: H04N19/48 ,  H04N19/124 ,  H04N19/436 ,  H04N19/467 ,  H04N19/60 ,  H04N19/70

Abstract: A method and apparatus for processing transform coefficients for a video coder or encoder is disclosed in the present invention. Embodiments according to the present invention reduce the storage requirement for sign bit hiding (SBH), improve the parallelism of SBH processing or simplify parity checking. Partial quantized transform coefficients (QTCs) of a transform block may be processed before all QTCs of the transform block are received. Zero and non-zero QTCs of a scan block may be processed concurrently and the QTCs of multiple scan blocks in a transform block may also be processed concurrently when computing cost function for SBH compensation. The range for searching for a value-modification QTC may be less than the scan block to be processed. Parity checking on QTCs may be based on least significant bits (LSBs) of all QTCs or all non-zero QTCs of a scan block.

Abstract translation: 在本发明中公开了一种用于处理视频编码器或编码器的变换系数的方法和装置。 根据本发明的实施例减少了符号位隐藏（SBH）的存储要求，提高了SBH处理的并行性或简化了奇偶校验。 可以在接收到变换块的所有QTC之前处理变换块的部分量化变换系数（QTC）。 可以同时处理扫描块的零和非零QTC，并且当计算用于SBH补偿的成本函数时，变换块中的多个扫描块的QTC也可以同时处理。 用于搜索值修改QTC的范围可能小于要处理的扫描块。 QTC的奇偶校验可以基于所有QTC的最低有效位（LSB）或扫描块的所有非零QTC。

公开(公告)号：US20140092969A1

公开(公告)日：2014-04-03

申请号：US13632224

申请日：2012-10-01

Applicant: MEDIATEK INC.

Inventor： Kun-Bin Lee ,  Ting-An Lin

IPC: H04N7/26

CPC classification number: H04N19/433

Abstract: A method and apparatus of data reduction of search range buffer for motion estimation or motion compensation are disclosed. The method and apparatus use local memory to store reference data associated with search region to reduce system bandwidth requirement and use data reduction to reduce required local memory. The data reduction technique is also applied to intermediate data in a video coding system to reduce storage requirement associated with intermediate data. The data reduction technique is further applied to reference frames to reduce storage requirement for coding system incorporating picture enhancement processing to the reconstructed video.

Abstract translation: 公开了一种用于运动估计或运动补偿的搜索范围缓冲器的数据缩减方法和装置。 该方法和装置使用本地存储器来存储与搜索区域相关联的参考数据，以减少系统带宽需求并使用数据缩减来减少所需的本地存储器。 数据缩减技术也适用于视频编码系统中的中间数据，以减少与中间数据相关联的存储需求。 数据缩减技术进一步应用于参考帧，以减少对重建视频并入图像增强处理的编码系统的存储要求。