公开(公告)号：US09307248B2

公开(公告)日：2016-04-05

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: G06K9/00 ,  H04N19/132 ,  H04N19/129 ,  H04N19/186 ,  H04N19/146 ,  H04N19/182 ,  H04N19/184 ,  H04N19/59 ,  H04N19/80

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：US20160021378A1

公开(公告)日：2016-01-21

申请号：US14767912

申请日：2015-01-21

Applicant: MEDIATEK INC.

Inventor： Chia-Yun Cheng ,  Chi-Cheng Ju ,  Yung-Chang Chang ,  Chih-Ming Wang

IPC: H04N19/176 ,  H04N19/44 ,  H04N19/60

CPC classification number: H04N19/91 ,  H04N19/129 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/463 ,  H04N19/60 ,  H04N19/70 ,  H04N19/82

Abstract: A decoding apparatus has an arithmetic decoder and a controller. A counter logic of the controller generates a first statistics result according to a first syntax element decoding result. A control logic of the controller instructs the arithmetic decoder to perform a first scan procedure at least once to generate the first syntax element decoding result of transform coefficients of a transform coefficient block, controls a repetition number of a second scan procedure based at least partly on the first statistics result, and instructs the arithmetic decoder to perform the second scan procedure at least once to generate a second syntax element decoding result of the transform coefficients. The first scan procedure decodes a first coded syntax element of one transform coefficient when performed by the arithmetic decoder once. The second scan procedure decodes a second coded syntax element of one transform coefficient when performed by the arithmetic decoder once.

Abstract translation: 解码装置具有算术解码器和控制器。 控制器的计数器逻辑根据第一语法元素解码结果产生第一统计结果。 控制器的控制逻辑指示算术解码器至少执行一次第一扫描过程以产生变换系数块的变换系数的第一语法元素解码结果，至少部分地基于第二扫描过程控制重复次数 第一统计结果，并且指示算术解码器至少执行第二扫描过程以产生变换系数的第二语法元素解码结果。 当由算术解码器执行一次时，第一扫描程序解码一个变换系数的第一编码语法元素。 当由算术解码器执行一次时，第二扫描程序解码一个变换系数的第二编码语法元素。

公开(公告)号：US09123103B2

公开(公告)日：2015-09-01

申请号：US14141416

申请日：2013-12-26

Applicant: MEDIATEK INC.

Inventor： Ding-Yun Chen ,  Chi-Cheng Ju ,  Cheng-Tsai Ho

IPC: G06K9/40 ,  G06T5/00 ,  G06T5/10 ,  G06T5/20

CPC classification number: G06T5/002 ,  G06T5/10 ,  G06T5/20 ,  G06T2207/10004 ,  G06T2207/20024 ,  G06T2207/20052 ,  G06T2207/20182

Abstract: A method for denoising images by block-matching three-dimensional (BM3D) method is disclosed in the present invention. Embodiments of the present invention are used to improve the quality of captured images. Instead of using the same noise variance to denoise all patches of an image, each patch is processed based on a particular assessed noise variance. The assessed noise variance of one reference patch is determined based on noise variance associated with the patch set or based on content characteristics associated with the patch set. The patch set is obtained by block-matching to find similar patches of the reference patch. Noise reduction in frequency domain is applied to the patch set according to the assessed noise variance of the reference patch. The determining of the assessed noise variance can be performed in spatial domain or in frequency domain.

Abstract translation: 在本发明中公开了一种通过块匹配三维（BM3D）方法对图像进行去噪的方法。 本发明的实施例用于提高拍摄图像的质量。 代替使用相同的噪声方差去除图像的所有斑块，每个贴片将根据特定的评估噪声方差进行处理。 基于与补丁集合相关联的噪声方差或基于与补丁集相关联的内容特征来确定一个参考补丁的估计噪声方差。 通过块匹配获得补丁集，以查找参考补丁的相似补丁。 根据评估的参考补丁的噪声方差，将频域的降噪应用于补丁集。 评估噪声方差的确定可以在空间域或频域中进行。

公开(公告)号：US09077965B2

公开(公告)日：2015-07-07

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: G06K9/36 ,  H04N19/194 ,  H04N19/176 ,  H04N19/124 ,  H04N19/127 ,  H04N19/146

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。

公开(公告)号：US20150049099A1

公开(公告)日：2015-02-19

申请号：US14337198

申请日：2014-07-21

Applicant: MEDIATEK INC.

Inventor： Chi-Cheng Ju ,  Tsu-Ming Liu

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G06T1/60 ,  G06T9/00 ,  G09G3/20 ,  G09G3/2096 ,  G09G2310/0218 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2340/02 ,  G09G2350/00 ,  G09G2360/08 ,  G09G2370/04 ,  G09G2370/08 ,  G09G2370/10 ,  H04N19/42 ,  H04N21/8455

Abstract: A data processing apparatus has a mapper, a plurality of compressors, and an output interface. The mapper receives pixel data of a plurality of pixels of a picture, and splits the pixel data of the pixels of the picture into a plurality of pixel data groups. The compressors compress the pixel data groups and generate a plurality of compressed pixel data groups, respectively. The output interface packs the compressed pixel data groups into at least one output bitstream, and outputs the at least one output bitstream via a display interface.

Abstract translation: 数据处理装置具有映射器，多个压缩器和输出接口。 映射器接收图像的多个像素的像素数据，并且将图像的像素的像素数据分割成多个像素数据组。 压缩机压缩像素数据组并分别生成多个压缩像素数据组。 输出接口将压缩像素数据组分组成至少一个输出比特流，并通过显示接口输出至少一个输出比特流。

公开(公告)号：US20150049098A1

公开(公告)日：2015-02-19

申请号：US14335956

申请日：2014-07-21

Applicant: MEDIATEK INC.

Inventor： Chi-Cheng Ju ,  Tsu-Ming Liu

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G06T1/60 ,  G06T9/00 ,  G09G3/20 ,  G09G3/2096 ,  G09G2310/0218 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2340/02 ,  G09G2350/00 ,  G09G2360/08 ,  G09G2370/04 ,  G09G2370/08 ,  G09G2370/10 ,  H04N19/42 ,  H04N21/8455

Abstract: A data processing apparatus includes a compression circuit, a rate controller, and an output interface. The compression circuit generates a plurality of compressed pixel data groups, each derived from applying a compression operation to pixel data of a pixel group, wherein the pixel group includes a portion of a plurality of pixels in a picture. The rate controller applies bit-rate control to each compression operation, wherein the rate controller adjusts the bit-rate control according to a position of each pixel boundary between different pixel groups. The output interface outputs the compressed pixel data groups via a plurality of display ports of a display interface, respectively.

Abstract translation: 数据处理装置包括压缩电路，速率控制器和输出接口。 压缩电路产生多个压缩像素数据组，每个压缩像素数据组通过对像素组的像素数据应用压缩操作而导出，其中像素组包括图像中的多个像素的一部分。 速率控制器对每个压缩操作应用比特率控制，其中速率控制器根据不同像素组之间的每个像素边界的位置来调整比特率控制。 输出接口分别通过显示接口的多个显示端口输出压缩像素数据组。

公开(公告)号：US20140292790A1

公开(公告)日：2014-10-02

申请号：US14225417

申请日：2014-03-25

Applicant: MEDIATEK INC.

Inventor： Chun-Chia Chen ,  Chi-Cheng Ju ,  Yung-Chang Chang

IPC: G06T1/60

CPC classification number: G06T1/60 ,  G06T7/408 ,  G06T7/90 ,  G06T2207/20021 ,  H04N19/433 ,  H04N19/51

Abstract: An exemplary data arrangement method for a picture includes at least the following steps: obtaining pixel data of a plurality of first N-bit pixels of the picture; and storing the obtained pixel data of the first N-bit pixels in a plurality of M-bit storage units of a first buffer based on a raster-scan order of the picture, wherein M and N are positive integers, and M is not divisible by N. Besides, at least one of the M-bit storage units is filled with part of the obtained pixel data of the first N-bit pixels, and the first N-bit pixels include at least one pixel divided into a first part stored in one of the M-bit storage units in the first buffer and a second part stored in another of the M-bit storage units in the first buffer.

Abstract translation: 用于图像的示例性数据排列方法至少包括以下步骤：获得图像的多个第一N位像素的像素数据; 并且基于所述图像的光栅扫描顺序将所获得的所述第一N位像素的所述像素数据存储在第一缓冲器的多个M位存储单元中，其中M和N是正整数，并且M不可整除 此外，M位存储单元中的至少一个填充了所获得的第一N位像素的像素数据的一部分，并且第一N位像素包括被分为存储的第一部分的至少一个像素 在第一缓冲器中的M位存储单元之一中，以及存储在第一缓冲器中的另一个M位存储单元中的第二部分。

公开(公告)号：US20140254689A1

公开(公告)日：2014-09-11

申请号：US14201950

申请日：2014-03-10

Applicant: MEDIATEK INC.

Inventor： Cheng-Tsai Ho ,  Chi-Cheng Ju ,  Ding-Yun Chen

IPC: H04N19/46

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/154 ,  H04N19/18 ,  H04N19/196 ,  H04N19/46

Abstract: A video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for deciding a target bit allocation of a rate-controlled unit in video coding. Besides, a video coding apparatus has a visual quality evaluation module, a rate controller and a coding circuit. The visual quality evaluation module evaluates visual quality based on data involved in a coding loop. The rate controller refers to at least the evaluated visual quality for deciding a target bit allocation of a rate-controlled unit. The coding circuit has the coding loop included therein, and encodes the rate-controlled unit according to the target bit allocation.

Abstract translation: 视频编码方法至少包括以下步骤：利用视觉质量评估模块，用于基于编码环路中涉及的数据来评估视觉质量; 并且至少参考用于决定视频编码中的速率控制单元的目标比特分配的评估的可视质量。 此外，视频编码装置具有视觉质量评估模块，速率控制器和编码电路。 视觉质量评估模块基于编码循环中涉及的数据来评估视觉质量。 速率控制器至少指定用于确定速率控制单元的目标比特分配的评估的可视质量。 编码电路包括编码环，并根据目标比特分配对速率控制单元进行编码。

公开(公告)号：US20140254662A1

公开(公告)日：2014-09-11

申请号：US14195868

申请日：2014-03-04

Applicant: MEDIATEK INC.

Inventor： Cheng-Tsai Ho ,  Chi-Cheng Ju ,  Ding-Yun Chen

IPC: H04N19/119 ,  H04N19/126

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/154 ,  H04N19/18 ,  H04N19/196 ,  H04N19/46

Abstract: One video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for performing de-blocking filtering. Another video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for deciding a target coding parameter associated with de-blocking filtering.

Abstract translation: 一种视频编码方法至少包括以下步骤：利用视觉质量评估模块基于编码环路中涉及的数据来评估视觉质量; 并且至少参考用于执行去块过滤的评估的视觉质量。 另一种视频编码方法至少包括以下步骤：利用视觉质量评估模块基于编码环路中涉及的数据来评估视觉质量; 并且至少参考用于决定与去块过滤相关联的目标编码参数的评估的可视质量。

公开(公告)号：US20140098119A1

公开(公告)日：2014-04-10

申请号：US13936231

申请日：2013-07-08

Applicant: MEDIATEK INC.

Inventor： Chi-Cheng Ju ,  Tsu-Ming Liu

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G06F3/14 ,  G06T1/20 ,  G06T9/00 ,  G09G5/005 ,  G09G2330/021 ,  G09G2340/02 ,  G09G2340/04 ,  G09G2350/00 ,  G09G2370/08 ,  G09G2370/10 ,  H04N19/10 ,  H04N19/12 ,  H04N19/136 ,  H04N19/156 ,  H04N19/164 ,  H04N19/172

Abstract: A data processing apparatus has a compressor and an output interface. The compressor generates a compressed display data by compressing a display data according to a compression algorithm. The output interface records indication information in an output bitstream, and outputs the output bitstream via a display interface, wherein the output bitstream is derived from the compressed display data, and the indication information is set in response to the compression algorithm employed by the compressor. Another data processing apparatus has a de-compressor and an input interface. The de-compressor de-compresses a compressed display data derived from an input bitstream. The input interface receives the input bitstream via a display interface, parses indication information included in the input bitstream, and configures the de-compressor to employ a de-compression algorithm as indicated by the indication information.

Abstract translation: 数据处理装置具有压缩机和输出接口。 压缩器通过根据压缩算法对显示数据进行压缩来生成压缩显示数据。 输出接口将指示信息记录在输出比特流中，并且通过显示接口输出输出比特流，其中从压缩显示数据导出输出比特流，并且响应于压缩器使用的压缩算法设置指示信息。 另一数据处理装置具有解压缩器和输入接口。 解压缩器解压缩从输入比特流导出的压缩显示数据。 输入接口通过显示接口接收输入比特流，解析输入比特流中包含的指示信息，并配置解压缩器采用由指示信息指示的去压缩算法。