公开(公告)号：US09807389B2

公开(公告)日：2017-10-31

申请号：US14646020

申请日：2014-10-24

Applicant: MEDIATEK INC.

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

IPC: G06K9/36 ,  H04N19/115 ,  H04N19/174 ,  H04N21/41 ,  H04N21/43 ,  H04N19/172 ,  H04N19/463 ,  H04N19/184 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N5/08

CPC classification number: H04N19/119 ,  H04N5/08 ,  H04N19/115 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N21/4122 ,  H04N21/4302

Abstract: An image processing method includes at least following steps: partitioning a picture into a plurality of picture regions, wherein each picture region comprises at least one pixel group row, each pixel group row comprises at least one pixel group, and the picture regions comprise a first picture region and a second picture region horizontally adjacent to each other; and performing flatness check upon a specific pixel group in a pixel group row of the first picture region through using at least one pixel borrowed from the second picture region.

公开(公告)号：US20170034524A1

公开(公告)日：2017-02-02

申请号：US15292149

申请日：2016-10-13

Applicant: MEDIATEK INC.

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

IPC: H04N19/48 ,  H04N19/60 ,  H04N19/124

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：US20150187045A1

公开(公告)日：2015-07-02

申请号：US14444910

申请日：2014-07-28

Applicant: MEDIATEK INC.

Inventor： Han-Liang Chou ,  Kun-Bin Lee

IPC: G06T1/60

CPC classification number: H04N19/189 ,  H04N19/436

Abstract: Method is disclosed for reducing frame buffer, stream buffer, reconstruction buffer, or latency associated with frame buffer compression in an encoder or decoder with multiple slices of an image frame. The image frame is divided into multiple slices vertically, horizontally or both. One core compressor or decompressor can be used to process two or more slices. The encoding and decoding of two or more slices may be performed in parallel. Instead of encoding an entire slice, the encoder compresses only partial data of one slice before encoding another slice. According to one embodiment, each slice is divided into two or more partitions. The encoder is switched to another slice after encoding one partition of one slice. In another embodiment, the encoder is switched to another slice based the information related to the coding status. The decoding order may be same as the encoding order.

Abstract translation: 公开了用于在具有多个图像帧的编码器或解码器中减少帧缓冲器，流缓冲器，重建缓冲器或与帧缓冲器压缩相关联的延迟的方法。 图像帧垂直，水平或两者分为多个片段。 一个核心压缩器或解压缩器可用于处理两个或多个切片。 两个或多个切片的编码和解码可以并行执行。 代替对整个片段进行编码，编码器仅在编码另一片之前仅压缩一片的部分数据。 根据一个实施例，每个切片被分成两个或更多个分区。 在编码一个分片的一个分区后，编码器切换到另一个分片。 在另一个实施例中，编码器基于与编码状态相关的信息被切换到另一切片。 解码顺序可以与编码顺序相同。

公开(公告)号：US20150139311A1

公开(公告)日：2015-05-21

申请号：US14534184

申请日：2014-11-06

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Kun-Bin Lee

IPC: H04N19/14 ,  H04N19/176 ,  H04N19/50 ,  H04N19/159

CPC classification number: H04N19/14 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/423 ,  H04N19/50 ,  H04N19/593

Abstract: A block prediction search method includes at least following steps: utilizing a data buffer to store bit-depth reduced sample values of a plurality of samples in a first pixel line; detecting occurrence of an edge in the first pixel line according to restored sample values derived from stored sample values in the data buffer; and determining a block prediction vector for a pixel group in a second pixel line different from the first pixel line, wherein the block prediction vector is determined based at least partly on a last edge count value indicative of a number of samples in the first pixel line that have gone by since the edge occurs.

Abstract translation: 块预测搜索方法至少包括以下步骤：利用数据缓冲器将多个样本的比特深度降低的采样值存储在第一像素线中; 根据从数据缓冲器中存储的样本值导出的恢复的样本值来检测第一像素行中的边缘的出现; 以及确定与所述第一像素行不同的第二像素行中的像素组的块预测矢量，其中，所述块预测矢量至少部分地基于指示所述第一像素行中的采样数的最后边缘计数值来确定 自从边缘发生以来已经过去了。

公开(公告)号：US20150049819A1

公开(公告)日：2015-02-19

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: H04N19/13 ,  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：US08854233B2

公开(公告)日：2014-10-07

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 ,  H03M7/40 ,  H03M7/30

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：US10523938B2

公开(公告)日：2019-12-31

申请号：US15031262

申请日：2014-10-24

Applicant: MEDIATEK INC.

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

IPC: H04N19/119 ,  H04N19/174 ,  H04N21/43 ,  H04N19/172 ,  H04N19/463 ,  H04N19/184 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N5/08

Abstract: An image processing method includes: combining a padding region with a picture, wherein any padding pixel included in the padding region is assigned with a predetermined pixel value; and encoding the picture having the padding region combined therewith. For example, the padding region is directly below a bottom edge of the picture. For another example, all of padding pixels included in the padding region have the same pixel value.

公开(公告)号：US10126951B2

公开(公告)日：2018-11-13

申请号：US14905970

申请日：2015-06-16

Applicant: MEDIATEK INC.

Inventor： Kun-Bin Lee ,  Tung-Hsing Wu ,  Yi-Hao Wu

IPC: G06F3/06 ,  G06F5/00 ,  G06F13/16

Abstract: A data processing apparatus includes a storage element and a clock controller. The storage element has storage partitions, including a first storage partition and a second storage partition. The clock controller controls clock driving of the first storage partition and the second storage partition. When a processing circuit is configured to operate in a first condition to process a first data sample with a first bit width, the clock controller enables clock driving of both of the first storage partition and the second storage partition. When the processing circuit is configured to operate in a second condition to process a second data sample with a second bit width, the clock controller enables clock driving of the first storage partition and disables clock driving of the second storage partition.

公开(公告)号：US09699466B2

公开(公告)日：2017-07-04

申请号：US14140967

申请日：2013-12-26

Applicant: MEDIATEK INC.

Inventor： Tung-Hsing Wu ,  Kun-Bin Lee

IPC: H04N19/176 ,  H04N19/103 ,  H04N19/126 ,  H04N19/156

CPC classification number: H04N19/176 ,  H04N19/103 ,  H04N19/126 ,  H04N19/156

Abstract: Methods for determining reference type of each image unit and adjusting the corresponding lambda table of the reference type are disclosed. Embodiments according to the invention are used to improve the quality of video compression or reduce the requirement of memory buffer, memory power or computation power. The reference type is determined based on the encoder system information or image unit information. The frame/slice type structure of a video sequence is adjusted according to the image unit information of encoded frames or together with input frames. By fine-tuning the mode decision process, the coding efficiency can be improved. The mode decision process is modified by adaptively adjusting the lambda table. The lambda table is adaptively determined according to the conventional image unit type (such as Intra coded, predicted or bi-directional predicted type) and the reference type determined.

公开(公告)号：US09118891B2

公开(公告)日：2015-08-25

申请号：US14258047

申请日：2014-04-22

Applicant: MEDIATEK INC.

Inventor： Yu-Wen Huang ,  Chih-Hui Kuo ,  Kun-Bin Lee

IPC: H04N19/88 ,  H04N19/127 ,  H04N19/48 ,  H04N19/423

CPC classification number: H04N19/127 ,  H04N19/423 ,  H04N19/48 ,  H04N19/88

Abstract: A video processing method for a video image consisting of a plurality of units includes: generating a plurality of information types of at least a first unit and a second unit neighboring the first unit; and storing the plurality of information types of the first unit in a first continuous address space in a buffer and storing the plurality of information types of the second unit in a second continuous address space in the buffer, wherein the first continuous address space is adjacent to the second continuous address space. The plurality of information types of the first and second units are required for coding a specific unit, and the order of the stored plurality of information types of the first and second units is manipulated in each of the first and second continuous address spaces.

Abstract translation: 一种用于由多个单元组成的视频图像的视频处理方法包括：生成与第一单元相邻的至少第一单元和第二单元的多种信息类型; 以及将所述第一单元的所述多个信息类型存储在缓冲器中的第一连续地址空间中，并将所述第二单元的所述多个信息类型存储在所述缓冲器中的第二连续地址空间中，其中，所述第一连续地址空间与 第二个连续地址空间。 需要第一和第二单元的多种信息类型来对特定单元进行编码，并且在第一和第二连续地址空间中的每一个中操纵存储的第一和第二单元的多个信息类型的顺序。