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：US20150187053A1

公开(公告)日：2015-07-02

申请号：US14141416

申请日：2013-12-26

Applicant: MEDIATEK INC.

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

IPC: G06T5/00 ,  G06T5/20 ,  G06T5/10

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：US20150077569A1

公开(公告)日：2015-03-19

申请号：US14027238

申请日：2013-09-15

Applicant: MEDIATEK INC.

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

IPC: H04N5/232 ,  G06K9/00

CPC classification number: H04N5/23219 ,  G06K9/00261 ,  H04N5/23216 ,  H04N5/23241

Abstract: One image processing method has at least the following steps: receiving an image input in a device, wherein the image input is composed of at least one source image; receiving image selection information; regarding a source image included in the image input, checking the image selection information to determine whether the source image is selected or skipped; and performing an object oriented image processing operation upon each selected source image. Another image processing method has at least the following steps: receiving an image input in a device, wherein the image input is composed of at least one source image; receiving algorithm selection information; and regarding a source image included in the image input, checking the algorithm selection information to determine a selected image processing algorithm from a plurality of different image processing algorithms, and performing an image processing operation upon the source image based on the selected image processing algorithm.

Abstract translation: 一种图像处理方法至少具有以下步骤：接收在设备中输入的图像，其中图像输入由至少一个源图像组成; 接收图像选择信息; 关于包括在图像输入中的源图像，检查图像选择信息以确定是选择还是跳过源图像; 以及对每个所选择的源图像执行面向对象的图像处理操作。 另一图像处理方法至少具有以下步骤：接收在设备中输入的图像，其中图像输入由至少一个源图像组成; 接收算法选择信息; 并且关于包括在图像输入中的源图像，检查算法选择信息以从多个不同的图像处理算法确定所选择的图像处理算法，并且基于所选择的图像处理算法对源图像执行图像处理操作。

公开(公告)号：US20140254680A1

公开(公告)日：2014-09-11

申请号：US14194812

申请日：2014-03-02

Applicant: MEDIATEK INC.

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

IPC: H04N19/51

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 motion estimation. 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 motion estimation.

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运动估计的评估的视觉质量。 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; 并且至少参考用于确定与运动估计相关联的目标编码参数的评估视觉质量。

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：US20140133580A1

公开(公告)日：2014-05-15

申请号：US14165599

申请日：2014-01-28

Applicant: MEDIATEK INC.

Inventor： Yung-Chang Chang ,  Chia-Yun Cheng ,  Chi-Cheng Ju

IPC: H04N19/44

CPC classification number: H04N19/00533 ,  H04N19/423 ,  H04N19/433 ,  H04N19/44 ,  H04N19/577 ,  H04N19/59

Abstract: A video decoding method for decoding a bit stream to a plurality of frames, applied in a video decoding system, includes: determining whether a size of a current picture is equal to that of a next picture according to the bit stream; scaling a corresponding reference frame for the next picture to generate a scaled frame when the size of the current picture is not equal to that of the next picture; and storing the scaled frame in a first buffer of a storage unit, wherein at least a portion of a first frame originally stored in the first buffer is used; wherein when it is determined that the size of the current picture is not equal to that of the next picture, the next picture is encoded in the bit stream in a mode that the scaled corresponding reference frame is required for decoding the next picture.

Abstract translation: 一种视频解码方法，用于将应用于视频解码系统的比特流解码为多个帧，包括：根据比特流确定当前图像的大小是否等于下一图像的大小; 当当前图像的大小不等于下一图像的大小时，缩放下一图像的对应参考帧以产生缩放帧; 并且将缩放的帧存储在存储单元的第一缓冲器中，其中使用原始存储在第一缓冲器中的第一帧的至少一部分; 其中当确定当前画面的尺寸不等于下一画面的尺寸时，下一画面以对于下一画面进行解码所需的缩放对应的参考帧的模式被编码在比特流中。

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。

公开(公告)号：US20140098893A1

公开(公告)日：2014-04-10

申请号：US13937224

申请日：2013-07-09

Applicant: MEDIATEK INC.

Inventor： Chi-Cheng Ju ,  Tsu-Ming Liu

IPC: H04N7/26

CPC classification number: G06T9/00 ,  G09G5/006 ,  G09G2310/04 ,  G09G2330/021 ,  G09G2340/02 ,  G09G2360/18 ,  G09G2370/10 ,  H04N19/127 ,  H04N19/157 ,  H04N19/188 ,  H04N19/85

Abstract: A data processing apparatus at a transmitter end has an output interface and a display controller. The output interface packs a compressed display data into an output bitstream, and outputs the output bitstream via a display interface. The display controller refers to a compression characteristic of the compressed display data to configure a transmission setting of the output interface over the display interface (e.g., number of data lines, operating frequency of each data line, and/or behavior in the blanking period). A data processing apparatus at a receiver end has an input interface and a controller. The input interface receives an input bitstream via a display interface, and un-packs the input bitstream into a compressed display data that is transmitted over the display interface. The controller configures a reception setting of the input interface over the display interface in response to a compression characteristic of the compressed display data.

Abstract translation: 发射机端的数据处理装置具有输出接口和显示控制器。 输出接口将压缩的显示数据包装到输出比特流中，并通过显示接口输出输出比特流。 显示控制器是指压缩显示数据的压缩特性，以配置显示界面上的输出接口的传输设置（例如，数据线的数量，每条数据线的操作频率和/或消隐期间的行为） 。 接收端的数据处理装置具有输入接口和控制器。 输入接口通过显示接口接收输入比特流，并将输入比特流解压缩成通过显示接口发送的压缩显示数据。 响应于压缩显示数据的压缩特性，控制器通过显示界面配置输入接口的接收设置。

公开(公告)号：US20140036992A1

公开(公告)日：2014-02-06

申请号：US13922481

申请日：2013-06-20

Applicant: MEDIATEK INC.

Inventor： Ping Chao ,  Huei-Min Lin ,  Yung-Chang Chang ,  Chi-Cheng Ju

IPC: H04N7/26

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/156 ,  H04N19/176 ,  H04N19/82

Abstract: A method and apparatus for applying DF processing and SAO processing to reconstructed video data are disclosed. The DF processing is applied to a current access element of reconstructed video data to generate DF output data and the deblocking status is determined while applying the DF processing. Status-dependent SAO processing is applied to one or more pixels of the DF output data according to the deblocking status. The status-dependent SAO processing comprises SAO processing, partial SAO processing, and no SAO processing. The SAO starting time for SAO processing is between the DF-output starting time and ending time for the current block. The DF starting time of a next block can be earlier than the SAO ending time of the current block by a period oft, where t is smaller than time difference between the DF-output starting time and the DF starting time of the next block.

Abstract translation: 公开了一种用于对重构的视频数据应用DF处理和SAO处理的方法和装置。 DF处理被应用于重构的视频数据的当前访问元件以产生DF输出数据，并且在应用DF处理的同时确定去块状态。 根据去块状态，将状态依赖的SAO处理应用于DF输出数据的一个或多个像素。 状态依赖性SAO处理包括SAO处理，部分SAO处理，无SAO处理。 SAO处理的SAO启动时间在当前块的DF输出开始时间和结束时间之间。 下一个块的DF开始时间可以比当前块的SAO结束时间早一个时间t，其中t小于DF输出开始时间和下一个块的DF开始时间之间的时间差。

公开(公告)号：US20140022344A1

公开(公告)日：2014-01-23

申请号：US14035962

申请日：2013-09-25

Applicant: MEDIATEK INC.

Inventor： Te-Chi Hsiao ,  Yung-Chang Chang ,  Ching-Chieh Wang ,  Shih-Hung Lin ,  Chi-Cheng Ju

IPC: H04N13/00

CPC classification number: H04N13/161 ,  H04N19/30 ,  H04N19/44 ,  H04N19/597 ,  H04N21/234327

Abstract: An exemplary decoding method of an input video bitstream including a first bitstream and a second bitstream includes: decoding a first picture in the first bitstream; after a required decoded data derived from decoding the first picture is ready for a first decoding operation of a second picture in the first bitstream, performing the first decoding operation; and after a required decoded data derived from decoding the first picture is ready for a second decoding operation of a picture in the second bitstream, performing the second decoding operation, wherein a time period of decoding the second picture in the first bitstream and a time period of decoding the picture in the second bitstream are overlapped in time.

Abstract translation: 包括第一比特流和第二比特流的输入视频比特流的示例性解码方法包括：对第一比特流中的第一图像进行解码; 在从第一图像解码得到的所需解码数据准备好进行第一比特流中的第二图像的第一解码操作之后，执行第一解码操作; 并且在从第一图像的解码得到的所需解码数据准备好进行第二比特流中的图像的第二解码操作之后，执行第二解码操作，其中对第一比特流中的第二图像进行解码的时间段和时间段 对第二位流中的图像进行解码的时间重叠。