公开(公告)号：US20150237378A1

公开(公告)日：2015-08-20

申请号：US14619081

申请日：2015-02-11

Applicant: MEDIATEK INC.

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

IPC: H04N19/80 ,  H04N19/172 ,  H04N19/126

CPC classification number: H04N19/149 ,  H04N19/117 ,  H04N19/17 ,  H04N19/82

Abstract: A method for controlling sample adaptive offset (SAO) filtering includes: generating a first SAO decision for pixels in a first partial region of a first frame based at least partly on a cost function that uses a first weighting parameter; and generating a second SAO decision for pixels in a second partial region of the first frame based at least partly on the cost function that uses a second weighting parameter. The second partial region is different from the first partial region, and the second weighting parameter is different from the first weighting parameter.

Abstract translation: 用于控制采样自适应偏移（SAO）滤波的方法包括：至少部分地基于使用第一加权参数的成本函数，为第一帧的第一部分区域中的像素生成第一SAO决定; 以及至少部分地基于使用第二加权参数的成本函数，为所述第一帧的第二部分区域中的像素生成第二SAO决定。 第二部分区域与第一部分区域不同，第二加权参数与第一加权参数不同。

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：US20150131730A1

公开(公告)日：2015-05-14

申请号：US14531930

申请日：2014-11-03

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Kun-Bin Lee

IPC: H04N19/43 ,  H04N19/56 ,  H04N19/44 ,  H04N19/52

CPC classification number: H04N19/43 ,  H04N19/44 ,  H04N19/52 ,  H04N19/56

Abstract: A compression method with block prediction includes at least following steps: utilizing a vector buffer to store a final vector information set of at least one pixel group at a same time, wherein each pixel line of an image is composed of a plurality of pixel groups, and a maximum number of the at least one pixel group having the final vector information set simultaneously stored in the vector buffer is smaller than a number of the pixel groups of each pixel line; and when encoding a first pixel group in a first pixel line, obtaining a final vector information of the first pixel group from the vector buffer, and encoding the first pixel group with the obtained final vector information set of the first pixel group, wherein the final vector information set of the first pixel group stored in the vector buffer is derived from performing block prediction search upon a second pixel line.

Abstract translation: 具有块预测的压缩方法至少包括以下步骤：利用向量缓冲器同时存储至少一个像素组的最终矢量信息集，其中图像的每个像素线由多个像素组组成， 并且具有同时存储在矢量缓冲器中的最终矢量信息的至少一个像素组的最大数量小于每个像素线的像素组的数量; 并且当编码第一像素行中的第一像素组时，从矢量缓冲器获得第一像素组的最终矢量信息，并且利用所获得的第一像素组的最终矢量信息集对第一像素组进行编码，其中最终 从第二像素行执行块预测搜索导出存储在向量缓冲器中的第一像素组的向量信息集。

公开(公告)号：US20150103883A1

公开(公告)日：2015-04-16

申请号：US14492082

申请日：2014-09-22

Applicant: MEDIATEK INC.

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

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/122 ,  H04N19/567

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

Abstract: An intra prediction method includes at least the following steps: performing a distortion estimation to evaluate a distortion value of a specific block under an intra prediction mode and a transform unit size; using the evaluated distortion value to set a distortion value of the specific block under a first block configuration, the intra prediction mode and the transform unit size; and using the evaluated distortion value to set a distortion value of the specific block under a second block configuration, the intra prediction mode, and the transform unit size. The first block configuration represents a first block size, and the second block configuration represents a second block size different from the first block size.

Abstract translation: 帧内预测方法至少包括以下步骤：执行失真估计以评估在帧内预测模式和变换单位大小下的特定块的失真值; 使用所评估的失真值来设置第一块配置下的特定块的失真值，帧内预测模式和变换单元大小; 并且使用所评估的失真值来设置第二块配置下的特定块的失真值，帧内预测模式和变换单元大小。 第一块配置表示第一块大小，第二块配置表示与第一块大小不同的第二块大小。

公开(公告)号：US20140341288A1

公开(公告)日：2014-11-20

申请号：US14270369

申请日：2014-05-06

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Kun-Bin Lee

IPC: H04N19/583

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.

Abstract translation: 一种示例性视频编码方法具有以下步骤：根据编码相关信息确定并行运动估计区域的大小; 以及通过至少基于并行运动估计区域的大小执行运动估计来对多个像素进行编码。 一个示例性视频解码方法具有以下步骤：解码视频参数流以获得并行运动估计区域的解码大小; 检查并行运动估计区域的解码大小的有效性，从而生成检查结果; 当检查结果指示并行运动估计区域的解码大小无效时，进入错误处理处理以决定并行运动估计的大小; 以及通过至少基于所述并行运动估计区域的所确定大小来执行运动估计来解码多个像素。

公开(公告)号：US20140254929A1

公开(公告)日：2014-09-11

申请号：US14183537

申请日：2014-02-19

Applicant: MEDIATEK INC.

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

IPC: H04N19/129 ,  H04N19/182 ,  H04N19/146 ,  H04N19/186

CPC classification number: H04N19/132 ,  H04N19/129 ,  H04N19/146 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/59 ,  H04N19/80

Abstract: An image encoding method includes at least following steps: receiving a plurality of target pixels within a frame, wherein pixel data of each target pixel has at least one color channel data corresponding to at least one color channel; determining a bit budget of the target pixels; and performing bit-plane scanning coding upon selected pixels according to the bit budget and a scanning order, and accordingly generating encoded pixel data of the selected pixels as encoded data of the target pixels, wherein the selected pixels are derived from the target pixels, and the bit-plane scanning coding extracts partial bits of pixel data of each selected pixel as encoded pixel data of the selected pixel. In addition, a corresponding image decoding method is provided.

Abstract translation: 图像编码方法至少包括以下步骤：接收帧内的多个目标像素，其中每个目标像素的像素数据具有至少一个对应于至少一个颜色通道的颜色通道数据; 确定目标像素的位预算; 以及根据比特预算和扫描顺序对所选择的像素执行位平面扫描编码，并且相应地生成所选择的像素的编码像素数据作为目标像素的编码数据，其中从所述目标像素导出所选择的像素，以及 位平面扫描编码将每个所选像素的像素数据的部分位提取为所选像素的编码像素数据。 另外，提供了相应的图像解码方法。

公开(公告)号：US20140205012A1

公开(公告)日：2014-07-24

申请号：US14154132

申请日：2014-01-13

Applicant: MEDIATEK INC.

Inventor： Kun-Bin Lee ,  Cheng-Hung Liu ,  Han-Liang Chou ,  Chi-Cheng Ju

IPC: H04N19/433

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

Abstract: One video encoding method includes: performing a first part of a video encoding operation by a software engine with instructions, wherein the first part of the video encoding operation comprises at least a motion estimation function; delivering a motion estimation result generated by the motion estimation function to a hardware engine; and performing a second part of the video encoding operation by the hardware engine. Another video encoding method includes: performing a first part of a video encoding operation by a software engine with instructions and a cache buffer; performing a second part of the video encoding operation by a hardware engine; performing data transfer between the software engine and the hardware engine through the cache buffer; and performing address synchronization to ensure that a same entry of the cache buffer is correctly addressed and accessed by both of the software engine and the hardware engine.

Abstract translation: 一种视频编码方法包括：通过软件引擎执行具有指令的视频编码操作的第一部分，其中视频编码操作的第一部分至少包括运动估计功能; 将由运动估计功能生成的运动估计结果传递给硬件引擎; 以及由硬件引擎执行视频编码操作的第二部分。 另一种视频编码方法包括：由具有指令的软件引擎和高速缓冲存储器执行视频编码操作的第一部分; 通过硬件引擎执行视频编码操作的第二部分; 通过高速缓冲存储器执行软件引擎和硬件引擎之间的数据传输; 并且执行地址同步以确保缓存缓冲器的相同条目被软件引擎和硬件引擎正确地寻址和访问。

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：US08599924B2

公开(公告)日：2013-12-03

申请号：US13859970

申请日：2013-04-10

Applicant: MediaTek Inc.

Inventor： Yung-Chang Chang ,  Chih-Ming Wang ,  Kun-Bin Lee

IPC: H04N7/12

CPC classification number: H04N19/00684 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61 ,  H04N19/70

Abstract: A video decoding apparatus includes a bitstream parser, a calculator and a memory. The bitstream parser is provided to receive a video bitstream and extracting a set of constraints associated with the video bitstream, wherein the set of constraints has information associated with a direct_8×8_inference flag for a macroblock of a picture, wherein the macroblock has N sub-macroblock partitions. The calculator is provided to calculate first motion vector information associated with the macroblock and obtain second motion vector information associated with K of the N sub-macroblock partitions from the first motion vector information according to the information associated with the direct_8×8_inference flag, wherein K is less than N. The memory is provided to store the second motion vector information.