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。

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：US20130314580A1

公开(公告)日：2013-11-28

申请号：US13868072

申请日：2013-04-22

Applicant: MEDIATEK INC.

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

IPC: H04N5/232

CPC classification number: H04N5/23293 ,  G06T3/40 ,  G06T3/4007 ,  G06T3/4023 ,  G06T3/4053 ,  G06T5/003 ,  G06T7/0002 ,  G06T2207/10016 ,  G06T2207/20192 ,  G06T2207/30168 ,  G06T2207/30201 ,  H04N5/23222 ,  H04N5/23248 ,  H04N5/23254 ,  H04N5/772 ,  H04N9/79

Abstract: A preview system of an image capture apparatus has a processing circuit and a display apparatus. The processing circuit reads an input image, scales at least a portion of the input image to generate a first preview image, and derives a second preview image from a selected portion of the input image. The display apparatus displays the first preview image and the second preview image, concurrently. Besides, a preview method for an image capture apparatus includes at least the following steps: reading an input image; scaling at least a portion of the input image to generate a first preview image; deriving a second preview image from a selected portion of the input image; and displaying the first preview image and the second preview image on a display apparatus, concurrently.

Abstract translation: 图像捕获装置的预览系统具有处理电路和显示装置。 处理电路读取输入图像，缩放输入图像的至少一部分以生成第一预览图像，并从输入图像的选定部分导出第二预览图像。 显示装置同时显示第一预览图像和第二预览图像。 此外，图像拍摄装置的预览方法至少包括以下步骤：读取输入图像; 缩放所述输入图像的至少一部分以生成第一预览图像; 从所述输入图像的所选部分导出第二预览图像; 并且同时在显示装置上显示第一预览图像和第二预览图像。

公开(公告)号：US20250054119A1

公开(公告)日：2025-02-13

申请号：US18232805

申请日：2023-08-10

Applicant: MEDIATEK INC.

Inventor： Huei-Han Jhuang ,  Jan-Wei Wang ,  Po-Yu Huang ,  Ying-Jui Chen ,  Chi-Cheng Ju

IPC: G06T5/00

Abstract: A HDR tone mapping system includes several modules. A semantic segmentation module is used to extract semantic information from the input image. An image decomposition module is used to decompose the input image to a high-bit base layer and a detail layer. A statistics module is used to generate statistics of pixels of the input image according to the semantic information. A curve computation module is used to generate a tone curve from the statistics. A compression module is used to compress the high-bit base layer to a low-bit base layer according to the tone curve, the statistics and the semantic information. A detail adjustment module is used to tune the detail layer according to the semantic information and the statistics to generate an adjusted detail layer. An image reconstruction module is used to combine the adjusted detail layer and the low-bit base layer to generate an output image.