公开(公告)号：US20180020213A1

公开(公告)日：2018-01-18

申请号：US15715181

申请日：2017-09-26

Applicant: MEDIATEK INC.

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

IPC: H04N19/115 ,  H04N21/41 ,  H04N19/46 ,  H04N19/463 ,  H04N19/44 ,  H04N19/436 ,  H04N19/184 ,  H04N19/174 ,  H04N21/43 ,  H04N19/172 ,  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：US09596477B2

公开(公告)日：2017-03-14

申请号：US14444910

申请日：2014-07-28

Applicant: MEDIATEK INC.

Inventor： Han-Liang Chou ,  Kun-Bin Lee

IPC: H04N19/189 ,  H04N19/436

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：US20160277735A1

公开(公告)日：2016-09-22

申请号：US15031281

申请日：2014-10-24

Applicant: MEDIATEK INC.

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

IPC: H04N19/115 ,  H04N19/463 ,  H04N19/174

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 the following steps: partitioning a picture into a plurality of slices, wherein each slice row in the picture includes at least one slice; generating a compressed picture by encoding each of the slices; and controlling at least one of start of transmission of encoded data of a slice row and end of the transmission of encoded data of the slice row according to a transmission synchronization event.

Abstract translation: 图像处理方法至少包括以下步骤：将图像分割成多个切片，其中图像中的每个切片行包括至少一个切片; 通过对每个切片进行编码来生成压缩图像; 以及根据传输同步事件来控制切片行的编码数据的开始传输和切片行的编码数据的传输的结束中的至少一个。

公开(公告)号：US20160261880A1

公开(公告)日：2016-09-08

申请号：US15031262

申请日：2014-10-24

Applicant: MEDIATEK INC.

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

IPC: H04N19/46 ,  H04N19/436 ,  H04N19/44 ,  H04N19/184 ,  H04N19/174

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.

Abstract translation: 一种图像处理方法包括：将填充区域与图像组合，其中包括在填充区域中的任何填充像素被分配预定像素值; 并对与其组合的填充区域进行编码。 例如，填充区域直接在图片的底部边缘的下方。 对于另一示例，包括在填充区域中的所有填充像素具有相同的像素值。

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：US20150304674A1

公开(公告)日：2015-10-22

申请号：US14646020

申请日：2014-10-24

Applicant: MEDIATEK INC.

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

IPC: H04N19/463 ,  H04N19/172

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.

Abstract translation: 图像处理方法至少包括以下步骤：将图像分割为多个图像区域，其中每个图像区域包括至少一个像素组行，每个像素组行包括至少一个像素组，并且所述图像区域包括第一 图像区域和水平相邻的第二图像区域; 以及通过使用从第二图像区域借出的至少一个像素对第一图像区域的像素组行中的特定像素组进行平坦度检查。

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：US20140133574A1

公开(公告)日：2014-05-15

申请号：US14011002

申请日：2013-08-27

Applicant: MEDIATEK INC.

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

IPC: H04N7/30

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，并且当计算用于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：US20140092986A1

公开(公告)日：2014-04-03

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: H04N7/26

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：US20140092969A1

公开(公告)日：2014-04-03

申请号：US13632224

申请日：2012-10-01

Applicant: MEDIATEK INC.

Inventor： Kun-Bin Lee ,  Ting-An Lin

IPC: H04N7/26

CPC classification number: H04N19/433

Abstract: A method and apparatus of data reduction of search range buffer for motion estimation or motion compensation are disclosed. The method and apparatus use local memory to store reference data associated with search region to reduce system bandwidth requirement and use data reduction to reduce required local memory. The data reduction technique is also applied to intermediate data in a video coding system to reduce storage requirement associated with intermediate data. The data reduction technique is further applied to reference frames to reduce storage requirement for coding system incorporating picture enhancement processing to the reconstructed video.

Abstract translation: 公开了一种用于运动估计或运动补偿的搜索范围缓冲器的数据缩减方法和装置。 该方法和装置使用本地存储器来存储与搜索区域相关联的参考数据，以减少系统带宽需求并使用数据缩减来减少所需的本地存储器。 数据缩减技术也适用于视频编码系统中的中间数据，以减少与中间数据相关联的存储需求。 数据缩减技术进一步应用于参考帧，以减少对重建视频并入图像增强处理的编码系统的存储要求。