公开(公告)号：US20180199035A1

公开(公告)日：2018-07-12

申请号：US15913933

申请日：2018-03-07

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Kun-Bin Lee ,  Yi-Hsin Huang

IPC: H04N19/119 ,  H04N19/11 ,  H04N19/176 ,  H04N19/122 ,  H04N19/154

CPC classification number: H04N19/119 ,  H04N19/11 ,  H04N19/122 ,  H04N19/154 ,  H04N19/176

Abstract: An intra prediction method includes: based on a specific transform unit size, estimating a plurality of best intra prediction modes of a plurality of second blocks, wherein a first block is composed of the second blocks, the first block supports a first block configuration and a second block configuration, the first block configuration represents a size of the first block, and the second block configuration represents a size of each second block; and checking similarity of the best intra prediction modes of the second blocks for selectively replacing the second block configuration by the first block configuration for the first block.

公开(公告)号：US09832478B2

公开(公告)日：2017-11-28

申请号：US14270369

申请日：2014-05-06

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Kun-Bin Lee

IPC: H04N19/51 ,  H04N19/172 ,  H04N19/109 ,  H04N19/156 ,  H04N19/157 ,  H04N19/177 ,  H04N19/179 ,  H04N19/436

CPC classification number: H04N19/51 ,  H04N19/109 ,  H04N19/156 ,  H04N19/157 ,  H04N19/172 ,  H04N19/177 ,  H04N19/179 ,  H04N19/436

Abstract: One exemplary video encoding method has the following steps: determining a size of a parallel motion estimation region according to encoding related information; and encoding a plurality of pixels by at least performing motion estimation based on the size of the parallel motion estimation region. One exemplary video decoding method has the following steps: decoding a video parameter stream to obtain a decoded size of a parallel motion estimation region; checking validity of the decoded size of the parallel motion estimation region, and accordingly generating a checking result; when the checking result indicates that the decoded size of the parallel motion estimation region is invalid, entering an error handling process to decide a size of the parallel motion estimation; and decoding a plurality of pixels by at least performing motion estimation based on the decided size of the parallel motion estimation region.

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：US09398302B2

公开(公告)日：2016-07-19

申请号：US14198557

申请日：2014-03-05

Applicant: MEDIATEK INC.

Inventor： Han-Liang Chou ,  Tsu-Ming Liu ,  Tung-Hsing Wu ,  Kun-Bin Lee ,  Chi-Cheng Ju

IPC: G06K9/36 ,  G06K9/46 ,  H04N19/146 ,  H04N19/176 ,  H04N19/124

CPC classification number: H04N19/146 ,  H04N19/124 ,  H04N19/176

Abstract: An image encoding method with rate control includes at least the following steps: defining a plurality of candidate bit budgets corresponding to different pre-defined maximum encoded bit lengths for one coding unit respectively; when encoding pixel data of a plurality of pixels within a current coding unit of an access unit of a frame, determining a target bit budget selected from the candidate bit budgets and allocating the target bit budget to the current coding unit; and outputting encoded pixel data of the pixels within the current coding unit that is generated from the encoder, wherein a bit length of the encoded pixel data is smaller than or equal to the target bit budget.

Abstract translation: 具有速率控制的图像编码方法至少包括以下步骤：分别为一个编码单元定义对应于不同预定义的最大编码比特长度的多个候选比特预算; 当对帧的访问单元的当前编码单元内的多个像素的像素数据进行编码时，确定从候选比特预算中选出的目标比特预算，并将目标比特预算分配给当前编码单元; 并且输出从编码器生成的当前编码单元内的像素的编码像素数据，其中编码像素数据的位长度小于或等于目标比特预算。

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：US09288487B2

公开(公告)日：2016-03-15

申请号：US14055043

申请日：2013-10-16

Applicant: MediaTek Inc.

Inventor： Kun-Bin Lee

IPC: H04N7/12 ,  H04N19/126 ,  H04N19/176 ,  H04N19/172 ,  H04N19/61 ,  H04N19/177 ,  H04N19/174 ,  H04N19/42

CPC classification number: H04N19/126 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/42 ,  H04N19/61

Abstract: Electronic devices for de-quantization are disclosed. In one configuration, the electronic device includes a local storage storing a plurality of first user-defined sub-factors and a plurality of second sub-factors and a plurality of default de-quantization scales; a first multiplier connected to the local storage and generating a plurality of user-defined de-quantization scales by multiplying the first user-defined sub-factors and the second sub-factors; a multiplexer connected to the local storage and the first multiplier and selectively outputting one of the generated user-defined de-quantization scales and the stored default de-quantization scales for a block of a macro-block (MB) of a bitstream to be decoded; and a second multiplier connected to the multiplexer and generating a plurality of inverse quantized coefficients by multiplying the output de-quantization scales from the multiplexer by the quantized coefficients.

Abstract translation: 公开了用于去量化的电子设备。 在一种配置中，电子设备包括存储多个第一用户定义的子因子和多个第二子因子以及多个默认去量化比例的本地存储器; 连接到本地存储器的第一乘法器，并且通过乘以第一用户定义的子因子和第二子因子来生成多个用户定义的去量化比例; 连接到本地存储器和第一乘法器的多路复用器，并且选择性地输出所生成的用户定义的去量化标度之一和存储的要解码的比特流的宏块（MB）的默认去量化标度 ; 以及连接到所述多路复用器的第二乘法器，并且通过将来自所述多路复用器的输出去量化标度乘以所述量化系数来产生多个逆量化系数。

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：US20140334724A1

公开(公告)日：2014-11-13

申请号：US13890088

申请日：2013-05-08

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Han-Liang Chou ,  Kun-Bin Lee

IPC: H04N19/60

CPC classification number: H04N19/60 ,  H04N19/619 ,  H04N19/91

Abstract: A method and apparatus for a multiple-channel image/video coding system are disclosed. A residue generation process is applied to the image/video data to generate residue data. A set of integer operations is applied to the residue data across the input channels to generate residue transformed data having multiple output channels. In one embodiment, the residue transformed data associated with a first output channel is related to the difference between a first residue data associated with a first input channel and a second residue data associated with a second input channel. In another embodiment, the residue transformed data associated with a second output channel is related to the second difference between a threshold and a third residue data associated with a third input channel, and wherein the threshold corresponds to the first truncated or rounded average of the first residue data and the second residue data.

Abstract translation: 公开了一种用于多通道图像/视频编码系统的方法和装置。 将残留生成处理应用于图像/视频数据以产生残差数据。 一组整数运算被应用于跨输入通道的残差数据，以产生具有多个输出通道的残差变换数据。 在一个实施例中，与第一输出通道相关联的残余变换数据与与第一输入通道相关联的第一残余数据与与第二输入通道相关联的第二残差数据之间的差异相关。 在另一个实施例中，与第二输出信道相关联的残余变换数据与第三输入信道相关联的阈值与第三残差数据之间的第二差值相关，并且其中阈值对应于第一输入信道的第一截断或舍入平均值 残差数据和第二残差数据。

公开(公告)号：US08824812B2

公开(公告)日：2014-09-02

申请号：US13633182

申请日：2012-10-02

Applicant: Mediatek Inc.

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

IPC: G06K9/36 ,  H04N7/50

CPC classification number: H04N7/50 ,  H04N19/115 ,  H04N19/15 ,  H04N19/17 ,  H04N19/34 ,  H04N19/61

Abstract: A method and apparatus of image data compression and decompression are disclosed. According to an embodiment of the present invention, the compression method partitions the image data into access units and encodes each access unit into a bitstream according to a target bit budget. Each access unit is encoded using first data compression to generate a first bitstream and the residual data is further encoded using second data compression to generate a second bitstream if the first bitstream is smaller than the target bit budget. In one example, the second data compression comprises bit plane coding applied to bit plane-ordered data, wherein the bit plane-ordered data is generated by scanning from a most significant bit to a least significant bit of the residual data in a bit plane-wise order. The decompression method comprises steps to recover reconstructed data from the first and second bitstreams.

Abstract translation: 公开了一种图像数据压缩和解压缩的方法和装置。 根据本发明的实施例，压缩方法将图像数据划分为访问单元，并根据目标比特预算将每个访问单元编码为比特流。 使用第一数据压缩对每个访问单元进行编码以生成第一比特流，并且如果第一比特流小于目标比特预算，则使用第二数据压缩进一步编码残差数据以生成第二比特流。 在一个示例中，第二数据压缩包括应用于位平面有序数据的位平面编码，其中通过在位平面有序数据中从残留数据的最高有效位扫描到最低有效位来生成位平面有序数据， 明智的秩序。 解压缩方法包括从第一和第二比特流恢复重建数据的步骤。

公开(公告)号：US20140105514A1

公开(公告)日：2014-04-17

申请号：US14049229

申请日：2013-10-09

Applicant: MEDIATEK INC.

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

IPC: H04N7/26

CPC classification number: H04N19/194 ,  H04N19/124 ,  H04N19/127 ,  H04N19/146 ,  H04N19/176

Abstract: An image compression method has at least the following steps: receiving source pixel data of a plurality of blocks of a frame; when a lossless compression mode is enabled for the frame, bypassing a source quantization operation and applying a lossless compression kernel to source pixel data of each of the blocks; and when a lossy compression mode is enabled for the frame, applying the source quantization operation to the source pixel data of each of the blocks to generate input pixel data of each of the blocks, and applying the lossless compression kernel to the input pixel data of each of the blocks. For example, the source quantization operation employs an adaptive quantization parameter for each of the blocks such that a size of compressed data of the frame generated under the lossy compression mode does not exceed a bit budget.

Abstract translation: 图像压缩方法至少具有以下步骤：接收帧的多个块的源像素数据; 当对帧进行无损压缩模式时，绕过源量化操作并将无损压缩内核应用于每个块的源像素数据; 并且当为帧启用有损压缩模式时，将源量化操作应用于每个块的源像素数据，以生成每个块的输入像素数据，并将无损压缩内核应用于 每个块。 例如，源量化操作对于每个块采用自适应量化参数，使得在有损压缩模式下生成的帧的压缩数据的大小不超过位预算。