公开(公告)号：US20070014481A1

公开(公告)日：2007-01-18

申请号：US11482036

申请日：2006-07-07

申请人： Wooshik Kim ,  Hyun Kim ,  Daesung Cho ,  Dmitri Birinov

发明人： Wooshik Kim ,  Hyun Kim ,  Daesung Cho ,  Dmitri Birinov

IPC分类号： G06K9/00 ,  G06K9/36

CPC分类号： H04N19/124 ,  H04N19/146 ,  H04N19/182 ,  H04N19/61

摘要： An apparatus and method for encoding and decoding image data. The image data encoding apparatus includes: a transformer transforming pixel values of an image in a time domain into pixel values in a frequency domain; a quantization coefficient determiner determining a quantization coefficient proportional to a number of bits per pixel of the image; a quantization unit quantizing the pixel values transformed by the transformer based on the quantization coefficient determined by the quantization coefficient determiner; and an entropy encoder generating a bitstream of the quantized pixel values.

摘要翻译： 一种用于对图像数据进行编码和解码的装置和方法。 图像数据编码装置包括：将时域中的图像的像素值变换为频域中的像素值的变换器; 量化系数确定器，确定与图像的每像素的位数成比例的量化系数; 量化单元，基于由量化系数确定器确定的量化系数量化由变压器变换的像素值; 以及生成量化像素值的比特流的熵编码器。

公开(公告)号：US20060139287A1

公开(公告)日：2006-06-29

申请号：US11300315

申请日：2005-12-15

申请人： Wooshik Kim ,  Daesung Cho ,  Seungwoo Lee ,  Sangjo Lee ,  Dmitri Birinov ,  Woochul Kim

发明人： Wooshik Kim ,  Daesung Cho ,  Seungwoo Lee ,  Sangjo Lee ,  Dmitri Birinov ,  Woochul Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G09G2320/0252 ,  G09G2340/02 ,  G09G2340/16 ,  G09G2360/18

摘要： A dynamic capacitance compensation (DCC) apparatus and method for a liquid crystal display (LCD). The apparatus includes a one-dimensional block-encoding unit reading pixel values of an image in line units, dividing the pixel values of the read image into one-dimensional blocks in predetermined pixel units, transforming and quantizing the one-dimensional blocks, and generating bit streams; a memory storing the generated bit streams; a one-dimensional block-decoding unit which decodes the bit streams stored in the memory by inverse quantization and inverse transform; and a compensation pixel value-detecting unit detecting a compensation pixel value for each pixel based on a difference between each pixel value of a current frame and each pixel value of a previous frame decoded by the one-dimensional block-decoding unit.

摘要翻译： 一种用于液晶显示器（LCD）的动态电容补偿（DCC）装置和方法。 该装置包括以行单位读取图像的像素值的一维块编码单元，将读取图像的像素值以预定像素单位划分为一维块，对一维块进行变换和量化，并生成 位流 存储所生成的比特流的存储器; 一维块解码单元，通过逆量化和逆变换对存储在存储器中的比特流进行解码; 以及补偿像素值检测单元，其基于当前帧的每个像素值与由一维块解码单元解码的先前帧的每个像素值之间的差异来检测每个像素的补偿像素值。

公开(公告)号：US20070014479A1

公开(公告)日：2007-01-18

申请号：US11384447

申请日：2006-03-21

申请人： Wooshik Kim ,  Hyun Kim ,  Daesung Cho ,  Dmitri Birinov

发明人： Wooshik Kim ,  Hyun Kim ,  Daesung Cho ,  Dmitri Birinov

IPC分类号： G06K9/36

CPC分类号： H04N19/85 ,  H04N19/117 ,  H04N19/186 ,  H04N19/61

摘要： A method and apparatus for encoding and/or decoding image data. The encoding method includes: if the color space of an image is a single color space, correcting pixel values by applying identical correction pixel values to all color components of a previous image, and if the color space of the image is not a single color space, correcting pixel values by applying different correction pixel values to the color components of the previous image; performing temporal prediction encoding of a current image by using the corrected pixel values of the previous image; quantizing the prediction encoded data; and generating a bitstream by entropy encoding the quantized data. According to the method and apparatus, when the pixel values of a previous image are desired to be corrected in order to perform temporal prediction encoding, different pixel value correction methods are applied according to whether or not the characteristics of color components included in the color space of the image desired to be encoded. By doing so, when image data is encoded, the encoding can be performed adaptively to a variety of color spaces and higher compression efficiency can be maintained.

摘要翻译： 一种用于对图像数据进行编码和/或解码的方法和装置。 编码方法包括：如果图像的颜色空间是单个颜色空间，则通过对先前图像的所有颜色分量应用相同的校正像素值来校正像素值，并且如果图像的颜色空间不是单个颜色空间 通过对前一图像的颜色分量应用不同的校正像素值来校正像素值; 通过使用先前图像的校正像素值来执行当前图像的时间预测编码; 量化预测编码数据; 以及通过对所述量化数据进行熵编码来生成比特流。 根据该方法和装置，当为了执行时间预测编码而希望对先前图像的像素值进行校正时，根据颜色空间中包括的颜色分量的特性是否应用不同的像素值校正方法 希望编码的图像。 通过这样做，当图像数据被编码时，编码可以自适应地执行各种颜色空间，并且可以保持较高的压缩效率。

公开(公告)号：US20050196062A1

公开(公告)日：2005-09-08

申请号：US11072492

申请日：2005-03-07

申请人： Daesung Cho ,  Hyun Kim ,  Wooshik Kim

发明人： Daesung Cho ,  Hyun Kim ,  Wooshik Kim

IPC分类号： H04N11/04 ,  H03M7/36 ,  H04N19/107 ,  H04N19/137 ,  H04N19/139 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/523 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  G06K9/36 ,  G06K9/46

CPC分类号： H04N19/86 ,  H04N19/11 ,  H04N19/132 ,  H04N19/176 ,  H04N19/20 ,  H04N19/21 ,  H04N19/51 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82

摘要： An apparatus and a method for encoding and/or decoding an image containing a gray alpha channel image. The apparatus for encoding an image includes a block data reception unit receiving image data of a block currently being input to the apparatus and classifies the current block either as a foreground image portion or as a background image portion according to values of gray alpha components in the current block; a foreground image encoding unit sequentially encoding the gray alpha components and brightness and hue components of the current block if the current block is classified as the foreground image portion; and a background image encoding unit encoding the gray alpha components of the current block if the current block is classified as the background image portion. The apparatus for decoding an image includes a bitstream interpretation unit interpreting the bitstream in units of predetermined blocks and classifies a current block obtained as one of the interpretation results either as a foreground image portion or as a background image portion; a foreground image decoding unit generating a restored gray alpha channel image and a restored brightness and hue image by sequentially decoding gray alpha components and brightness and hue components of the current block if the current block is classified as the foreground image portion; and a background image decoding unit generating a restored gray alpha channel image by decoding the gray alpha components of the current block if the current block is classified as the background image portion.

摘要翻译： 一种用于编码和/或解码包含灰色阿尔法通道图像的图像的装置和方法。 用于编码图像的装置包括块数据接收单元，接收当前正在输入到装置的块的图像数据，并将当前块作为前景图像部分或作为背景图像部分根据 当前块 如果当前块被分类为前景图像部分，则前景图像编码单元顺序地编码当前块的灰度α分量和亮度和色调分量; 以及背景图像编码单元，如果当前块被分类为背景图像部分，则对当前块的灰度α分量进行编码。 用于解码图像的装置包括比特流解释单元，以预定块为单位解释比特流，并将作为解释结果之一获得的当前块分类为前景图像部分或背景图像部分; 前景图像解码单元，如果当前块被分类为前景图像部分，则通过依次解码灰度α分量和当前块的亮度和色相分量，产生恢复的灰度阿尔法通道图像和恢复的亮度和色相图像; 以及背景图像解码单元，如果当前块被分类为背景图像部分，则通过对当前块的灰色α分量进行解码来生成恢复的灰色阿尔法通道图像。

公开(公告)号：US08345739B2

公开(公告)日：2013-01-01

申请号：US11335608

申请日：2006-01-20

申请人： Sangjo Lee ,  Wooshik Kim ,  Daesung Cho

发明人： Sangjo Lee ,  Wooshik Kim ,  Daesung Cho

IPC分类号： H04B1/66

CPC分类号： H04N19/184 ,  H04N19/103 ,  H04N19/115 ,  H04N19/132 ,  H04N19/149 ,  H04N19/174 ,  H04N19/176

摘要： A method, medium, and apparatus controlling a bit rate in image data encoding. The method for controlling a bit rate in image data encoding includes setting a reference bit amount for encoding a block group composed of a predetermined number of blocks created by dividing image data of a frame, encoding pixel values of the blocks according to a bit depth used to quantize the pixel values of the blocks, checking whether encoding of the frame is completed, and comparing a group bit amount indicating the amount of encoded bits of the block group with the set reference bit amount to adjust the bit depth if encoding of the unit frame is not completed and accordingly repeating the setting of the reference bit amount, encoding pixel values of the blocks, and checking whether encoding of the frame is completed.

摘要翻译： 控制图像数据编码中的位速率的方法，介质和装置。 用于控制图像数据编码中的位速率的方法包括设置用于编码由通过划分帧的图像数据创建的预定数量块的块组的参考位量，根据所使用的位深度对块的像素值进行编码 量化块的像素值，检查帧的编码是否完成，并且将指示块组的编码比特量的组比特量与设置的参考比特量进行比较，以便如果编码单元，则调整比特深度 帧不完成，因此重复参考比特量的设置，编码块的像素值，并且检查帧的编码是否完成。

公开(公告)号：US20070171985A1

公开(公告)日：2007-07-26

申请号：US11490021

申请日：2006-07-21

申请人： Wooshik Kim ,  Hyun Kim ,  Daesung Cho ,  Dmitri Birinov ,  Daehyun Kim

发明人： Wooshik Kim ,  Hyun Kim ,  Daesung Cho ,  Dmitri Birinov ,  Daehyun Kim

IPC分类号： H04N7/12

CPC分类号： H04N19/146 ,  H04N19/176 ,  H04N19/61 ,  H04N19/91

摘要： A method, medium, and system encoding/decoding video data using a binary arithmetic coding adaptive to a compression bit rate of the video data. The system may include a bitrate adaptation unit determining a maximum length of a prefix using a compression bitrate of the video data, a binarization unit dividing the video data into a prefix and a suffix according to the determined maximum length of the prefix and binarizing the video data, and an arithmetic encoding unit performing an arithmetic encoding on the binarized video data. The video data may be encoded/decoded using binary arithmetic encoding/decoding by determining the maximum length of the prefix, an order of an exponential Golomb code, and the number of contexts based on the compression bitrate. Accordingly, it is possible to obtain high encoding efficiency regardless of a range of the desired compression bitrate.

摘要翻译： 使用适应于视频数据的压缩比特率的二进制算术编码的方法，媒体和系统对视频数据进行编码/解码。 该系统可以包括比特率适配单元，其使用视频数据的压缩比特率来确定前缀的最大长度;二进制化单元，根据所确定的前缀的最大长度将视频数据划分成前缀和后缀，并且二进制化视频 数据和对二值化视频数据执行算术编码的算术编码单元。 可以使用二进制算术编码/解码，通过基于压缩比特率确定前缀的最大长度，指数Golomb码的顺序和上下文的数量来对视频数据进行编码/解码。 因此，无论期望的压缩比特率的范围如何，都可以获得高的编码效率。

公开(公告)号：US20070019872A1

公开(公告)日：2007-01-25

申请号：US11486150

申请日：2006-07-14

申请人： Dmitri Birinov ,  Hyun Kim ,  Daesung Cho ,  Wooshik Kim

发明人： Dmitri Birinov ,  Hyun Kim ,  Daesung Cho ,  Wooshik Kim

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/186 ,  H04N19/159 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61

摘要： A color image encoding and/or decoding system, medium, and method using inter-color-component prediction in a frequency domain. To encode an original image, including at least two or more image components, frequency domain transform may be performed with of each component of a color image, color component transform of the frequency domain transform coefficients, in frequency domain, may be performed based on the relationship between transform coefficients of the color image components in order to remove redundant information between color components, performing, and entropy encoding the removed redundant information data. According to the method, medium, and system, a color image or video data can be directly compressed effectively without a conventional color transform process. Furthermore, by using the relationship between image components, redundant information between color components varying with respect to the encoding mode may be removed so that the encoding efficiency can be enhanced.

摘要翻译： 在频域中使用颜色间分量预测的彩色图像编码和/或解码系统，介质和方法。 为了对包括至少两个或更多个图像分量的原始图像进行编码，可以利用彩色图像的每个分量来执行频域变换，频域中的频域变换系数的颜色分量变换可以基于 彩色图像分量的变换系数之间的关系，以消除颜色分量之间的冗余信息，执行和熵编码去除的冗余信息数据。 根据该方法，媒体和系统，彩色图像或视频数据可以被有效地直接压缩，而无需常规的颜色变换过程。 此外，通过使用图像分量之间的关系，可以去除针对编码模式变化的颜色分量之间的冗余信息，从而可以提高编码效率。

公开(公告)号：US20060233251A1

公开(公告)日：2006-10-19

申请号：US11405420

申请日：2006-04-18

申请人： Wooshik Kim ,  Dmitri Birinov ,  Daesung Cho ,  Hyun Kim

发明人： Wooshik Kim ,  Dmitri Birinov ,  Daesung Cho ,  Hyun Kim

IPC分类号： H04N7/12

CPC分类号： H04N19/136 ,  H04N19/103 ,  H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/40 ,  H04N19/44 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61 ,  H04N19/85 ,  H04N19/86 ,  H04N19/91

摘要： A moving picture coding/decoding method and apparatus with improved coding efficiency. A moving picture coding method includes selecting a color space from among a plurality of color spaces, selecting a prediction mode to be commonly applied to all the color components constituting the selected color space, generating first residual data corresponding to differences between a current picture and a predicted picture for each of the color components according to the selected prediction mode, generating second residual data corresponding to differences between the first residual data, and coding the second residual data.

公开(公告)号：US07995848B2

公开(公告)日：2011-08-09

申请号：US11302142

申请日：2005-12-14

申请人： Wooshik Kim ,  Shinwa Lee ,  Daesung Cho ,  Sangjo Lee ,  Dmitri Birinov

发明人： Wooshik Kim ,  Shinwa Lee ,  Daesung Cho ,  Sangjo Lee ,  Dmitri Birinov

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/184 ,  H04N19/103 ,  H04N19/105 ,  H04N19/126 ,  H04N19/176 ,  H04N19/503 ,  H04N19/593

摘要： A method and apparatus for encoding and decoding image data. The method of encoding image data includes spatially predicting pixel values of a one-dimensional block of an image using blocks spatially adjacent to the one-dimensional block or temporally predicting the pixel values of the one-dimensional block using a temporally previous frame; transforming and quantizing the pixel values of the one-dimensional block; and generating bit streams for a one-dimensional conversion block when the transformed and quantized one-dimensional block is defined as the one-dimensional conversion block. Therefore, since the method and apparatus encode and decode image data in one-dimensional block units, real-time encoding and decoding can be achieved. In addition, compression efficiency can be enhanced while minimizing visual degradation of image quality.

摘要翻译： 一种用于对图像数据进行编码和解码的方法和装置。 编码图像数据的方法包括使用与一维块空间相邻的块或使用时间上先前的帧临时预测一维块的像素值来空间预测图像的一维块的像素值; 变换和量化一维块的像素值; 以及当变换和量化的一维块被定义为一维转换块时，生成用于一维转换块的比特流。 因此，由于该方法和装置以一维块为单位对图像数据进行编码和解码，因此可以实现实时编码和解码。 此外，可以提高压缩效率，同时最小化图像质量的视觉劣化。

公开(公告)号：US07778471B2

公开(公告)日：2010-08-17

申请号：US11300315

申请日：2005-12-15

申请人： Wooshik Kim ,  Daesung Cho ,  Seungwoo Lee ,  Sangjo Lee ,  Dmitri Birinov ,  Woochul Kim

发明人： Wooshik Kim ,  Daesung Cho ,  Seungwoo Lee ,  Sangjo Lee ,  Dmitri Birinov ,  Woochul Kim

IPC分类号： G06K9/36

CPC分类号： G09G3/3611 ,  G09G2320/0252 ,  G09G2340/02 ,  G09G2340/16 ,  G09G2360/18

摘要： A dynamic capacitance compensation (DCC) apparatus and method for a liquid crystal display (LCD). The apparatus includes a one-dimensional block-encoding unit reading pixel values of an image in line units, dividing the pixel values of the read image into one-dimensional blocks in predetermined pixel units, transforming and quantizing the one-dimensional blocks, and generating bit streams; a memory storing the generated bit streams; a one-dimensional block-decoding unit which decodes the bit streams stored in the memory by inverse quantization and inverse transform; and a compensation pixel value-detecting unit detecting a compensation pixel value for each pixel based on a difference between each pixel value of a current frame and each pixel value of a previous frame decoded by the one-dimensional block-decoding unit.

摘要翻译： 一种用于液晶显示器（LCD）的动态电容补偿（DCC）装置和方法。 该装置包括以行单位读取图像的像素值的一维块编码单元，将读取图像的像素值以预定像素单位划分为一维块，对一维块进行变换和量化，并生成 位流 存储所生成的比特流的存储器; 一维块解码单元，通过逆量化和逆变换对存储在存储器中的比特流进行解码; 以及补偿像素值检测单元，其基于当前帧的每个像素值与由一维块解码单元解码的先前帧的每个像素值之间的差异来检测每个像素的补偿像素值。