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    • 11. 发明授权
    • Method, medium, and system encoding/decoding video data using bitrate adaptive binary arithmetic coding
    • 使用比特率自适应二进制算术编码的方法,中等和系统编码/解码视频数据
    • US08718146B2
    • 2014-05-06
    • US11490021
    • 2006-07-21
    • Wooshik KimHyun Mun KimDaesung ChoDmitri BirinovDoohyun Kim
    • Wooshik KimHyun Mun KimDaesung ChoDmitri BirinovDoohyun Kim
    • H04N7/12
    • H04N19/146H04N19/176H04N19/61H04N19/91
    • 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.
    • 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。
    • 12. 发明授权
    • Prediction image generating method and apparatus using single coding mode for all color components, and image and video encoding/decoding method and apparatus using the same
    • 用于所有颜色分量的单个编码模式的预测图像生成方法和装置,以及使用其的图像和视频编码/解码方法和装置
    • US08019001B2
    • 2011-09-13
    • US11362920
    • 2006-02-28
    • Wooshik KimHyun Mun KimDaesung ChoDmitri Birinov
    • Wooshik KimHyun Mun KimDaesung ChoDmitri Birinov
    • H04N11/02
    • H04N19/186H04N19/103H04N19/107H04N19/147H04N19/176H04N19/51H04N19/593
    • A prediction image generation method and apparatus using a single coding mode for all color components and image and video encoding and decoding methods and apparatuses using the same are provided. The prediction image generation apparatus includes: a spatial prediction image generation unit applying an identical prediction direction for each image component in an original image composed of at least two image components, and obtaining a spatial prediction image from a pixel spatially close to a pixel block of a predetermined size of a current frame; a temporal prediction image generation unit applying an identical block size, motion vector, and motion interpolation method for each image component in an original image composed of at least two image components, and obtaining a temporal prediction image by estimating motion in units of blocks of a predetermined size between a previous frame and a current frame of each of the image components; an encoding mode selection unit selecting an encoding mode by using the spatial prediction image and the temporal prediction image; and a single mode prediction image generation unit generating a prediction image by identically applying the encoding mode selected in the encoding mode selection unit to each component. By increasing the redundancy of information between prediction error signals of color components, the encoding efficiency can be enhanced in the method and apparatus.
    • 提供了一种用于所有颜色分量的单一编码模式的预测图像生成方法和装置,以及使用其的图像和视频编码和解码方法和装置。 预测图像生成装置包括:空间预测图像生成单元,对于由至少两个图像分量构成的原始图像中的每个图像分量应用相同的预测方向,并且从空间上靠近像素块的像素获得空间预测图像 当前帧的预定大小; 时间预测图像生成单元,对于由至少两个图像分量构成的原始图像中的每个图像分量应用相同的块大小,运动矢量和运动内插方法,并且通过以单位为单位估计运动来获得时间预测图像 每个图像分量的先前帧和当前帧之间的预定大小; 编码模式选择单元,通过使用空间预测图像和时间预测图像来选择编码模式; 以及通过将编码模式选择单元中选择的编码模式相同地应用于每个分量来生成预测图像的单模式预测图像生成单元。 通过增加颜色分量的预测误差信号之间的信息的冗余度,可以在方法和装置中提高编码效率。
    • 13. 发明授权
    • Sensor image encoding and/or decoding system, medium, and method
    • 传感器图像编码和/或解码系统,介质和方法
    • US07903306B2
    • 2011-03-08
    • US11490020
    • 2006-07-21
    • Daesung ChoHyun Mun KimWooshik KimDmitri Birinov
    • Daesung ChoHyun Mun KimWooshik KimDmitri Birinov
    • H04N1/46
    • H04N9/64H04N19/186H04N19/61H04N19/82
    • Sensor image encoding and/or decoding systems, media, and methods. The sensor image encoding system may include a first color component interpolation unit transforming a sensor image into a first format image by interpolating a first color component of at least two color components in the sensor image including the at least two color components, in which one pixel has one color component, and an encoding unit generating a bitstream by encoding the first format image. The sensor image decoding system may include a decoding unit receiving a bitstream obtained by encoding a sensor image including the at least two color components, where one pixel has one color component, and restoring a first format image by using at least two color components obtained by decoding the bitstream, and a first color component interpolation unit interpolating at least one color component in the first format image provided from the decoding unit.
    • 传感器图像编码和/或解码系统,媒体和方法。 传感器图像编码系统可以包括第一颜色分量内插单元,其通过内插包括至少两个颜色分量的传感器图像中的至少两个颜色分量的第一颜色分量将传感器图像变换为第一格式图像,其中一个像素 具有一个颜色分量,以及编码单元,通过对第一格式图像进行编码来生成比特流。 传感器图像解码系统可以包括解码单元,其接收通过对包括至少两个颜色分量的传感器图像进行编码而获得的比特流,其中一个像素具有一个颜色分量,并且通过使用由以下各项获得的至少两个颜色分量来恢复第一格式图像: 对比特流进行解码,以及第一颜色分量内插单元,对从解码单元提供的第一格式图像中的至少一个颜色分量进行内插。
    • 19. 发明申请
    • Method and apparatus of color system adaptive intensity compensation and video encoding/decoding method and apparatus thereof
    • 彩色系统自适应强度补偿及视频编码/解码方法及装置
    • US20070014479A1
    • 2007-01-18
    • US11384447
    • 2006-03-21
    • Wooshik KimHyun KimDaesung ChoDmitri Birinov
    • Wooshik KimHyun KimDaesung ChoDmitri Birinov
    • G06K9/36
    • H04N19/85H04N19/117H04N19/186H04N19/61
    • 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.
    • 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。
    • 20. 发明申请
    • Method, medium, and system encoding/decoding video data using bitrate adaptive binary arithmetic coding
    • 使用比特率自适应二进制算术编码的方法,中等和系统编码/解码视频数据
    • US20070171985A1
    • 2007-07-26
    • US11490021
    • 2006-07-21
    • Wooshik KimHyun KimDaesung ChoDmitri BirinovDaehyun Kim
    • Wooshik KimHyun KimDaesung ChoDmitri BirinovDaehyun Kim
    • H04N7/12
    • H04N19/146H04N19/176H04N19/61H04N19/91
    • 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.
    • 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。