公开(公告)号：US10917662B2

公开(公告)日：2021-02-09

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：US10187640B2

公开(公告)日：2019-01-22

申请号：US15191308

申请日：2016-06-23

Applicant: MediaTek Inc.

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

IPC: H04N7/12 ,  H04N19/61 ,  H04N19/17 ,  H04N19/15 ,  H04N19/176 ,  H04N19/174 ,  H04N19/169

Abstract: A method and system for encoding a group of coding blocks and packetizing the compressed data into slices/packets with hard-limited packet size are disclosed. According to the present invention, a packetization map for at least a portion of a current picture is determined. The packetization map associates coding blocks in at least a portion of the current picture with one or more packets by identifying a corresponding group of coding blocks for each packet of said one or more packets. The corresponding group of coding blocks for each packet is then encoded according to the packetization map and the size of each packet is determined. The packet size is checked. If any packet size exceeds a constrained size, a new packetization map is generated and the corresponding group of coding blocks for each packet is encoded according to the new packetization map.

公开(公告)号：US20180020221A1

公开(公告)日：2018-01-18

申请号：US15641224

申请日：2017-07-04

Applicant: MEDIATEK INC.

Inventor： Ming-Long Wu ,  Tung-Hsing Wu ,  Li-Heng Chen ,  Ting-An Lin ,  Yi-Hsin Huang ,  Chung-Hua Tsai ,  Chia-Yun Cheng ,  Han-Liang Chou ,  Yung-Chang Chang

IPC: H04N19/13 ,  H04N21/2665 ,  H04N21/2365 ,  H04N21/2343 ,  H04N19/70 ,  H04N19/44 ,  H04N19/172 ,  H04N21/845 ,  H04N19/124

CPC classification number: H04N19/13 ,  H04N19/124 ,  H04N19/172 ,  H04N19/174 ,  H04N19/18 ,  H04N19/44 ,  H04N19/70 ,  H04N21/234363 ,  H04N21/2365 ,  H04N21/2665 ,  H04N21/8456

Abstract: A video encoder has a processing circuit and a universal binary entropy (UBE) syntax encoder. The processing circuit processes pixel data of a video frame to generate encoding-related data, wherein the encoding-related data comprise at least quantized transform coefficients. The UBE syntax encoder processes a plurality of syntax elements to generate UBE syntax data. The encoding-related data are represented by the syntax elements. The processing circuit operates according to a video coding standard. The video coding standard supports arithmetic encoding. The UBE syntax data contain no arithmetic-encoded syntax data.

公开(公告)号：US09503760B2

公开(公告)日：2016-11-22

申请号：US13968361

申请日：2013-08-15

Applicant: MEDIATEK INC.

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

IPC: H04N19/91 ,  H04N19/13 ,  H04N19/169

CPC classification number: H04N19/91 ,  H04N19/13 ,  H04N19/1887

Abstract: A method of binarizing an input symbol using a hybrid Truncated Rice/k-th order exp-Golomb binarization scheme with a Rice Parameter includes: determining a threshold; comparing the input symbol with the threshold; constructing a codeword using a Truncated Rice (TR) binarization process for the input symbol when a comparison result belongs to a first type of comparison result; and constructing a codeword with an initial prefix and a suffix for the input symbol when the comparison result belongs to a second type of comparison result; wherein the suffix is constructed using an exp-Golomb binarization process.

Abstract translation: 使用具有Rice参数的混合截断Rice / k阶exp-Golomb二值化方案对输入符号进行二值化的方法包括：确定阈值; 将输入符号与阈值进行比较; 当比较结果属于第一类型的比较结果时，使用用于输入符号的截断水稻（TR）二值化处理构建码字; 以及当所述比较结果属于第二类型的比较结果时，构建具有所述输入符号的初始前缀和后缀的码字; 其中使用exp-Golomb二值化处理构建后缀。

公开(公告)号：US09373176B2

公开(公告)日：2016-06-21

申请号：US14754701

申请日：2015-06-30

Applicant: MEDIATEK INC.

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

IPC: G06T9/00 ,  H04N19/186 ,  H04N19/182 ,  H04N19/88

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.

公开(公告)号：US20150319446A1

公开(公告)日：2015-11-05

申请号：US14754701

申请日：2015-06-30

Applicant: MEDIATEK INC.

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

IPC: H04N19/182 ,  H04N19/88 ,  H04N19/186

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：US11166029B2

公开(公告)日：2021-11-02

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 ,  H04N19/184 ,  H04N19/463 ,  H04N19/172 ,  H04N19/159

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：US10972738B2

公开(公告)日：2021-04-06

申请号：US16367237

申请日：2019-03-27

Applicant: MEDIATEK INC.

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

IPC: H04N19/159 ,  H04N19/15 ,  H04N19/105 ,  H04N19/172 ,  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: checking if 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, and determining the target predictor for the coding unit according to a checking result.

公开(公告)号：US20190306510A1

公开(公告)日：2019-10-03

申请号：US16367237

申请日：2019-03-27

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 ,  H04N19/463 ,  H04N19/159 ,  H04N19/184 ,  H04N19/172

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: checking if 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, and determining the target predictor for the coding unit according to a checking result.

公开(公告)号：US10412390B2

公开(公告)日：2019-09-10

申请号：US15641224

申请日：2017-07-04

Applicant: MEDIATEK INC.

Inventor： Ming-Long Wu ,  Tung-Hsing Wu ,  Li-Heng Chen ,  Ting-An Lin ,  Yi-Hsin Huang ,  Chung-Hua Tsai ,  Chia-Yun Cheng ,  Han-Liang Chou ,  Yung-Chang Chang

IPC: H04N19/13 ,  H04N19/70 ,  H04N19/44 ,  H04N21/23 ,  H04N21/84 ,  H04N19/124 ,  H04N19/172 ,  H04N19/18 ,  H04N19/174 ,  H04N21/2365 ,  H04N21/2665 ,  H04N21/2343 ,  H04N21/845

Abstract: A video encoder has a processing circuit and a universal binary entropy (UBE) syntax encoder. The processing circuit processes pixel data of a video frame to generate encoding-related data, wherein the encoding-related data comprise at least quantized transform coefficients. The UBE syntax encoder processes a plurality of syntax elements to generate UBE syntax data. The encoding-related data are represented by the syntax elements. The processing circuit operates according to a video coding standard. The video coding standard supports arithmetic encoding. The UBE syntax data contain no arithmetic-encoded syntax data.