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公开(公告)号：EP1750448A2
公开(公告)日：2007-02-07
申请号：EP06018984.2
申请日：1998-09-03
发明人： Ito, Norio , Hasegawa, Shinya , Kusao, Hiroshi , Katata, Hiroyuki , Aono, Tomoko
CPC分类号： G06T3/4084 , H04N19/124 , H04N19/167 , H04N19/46 , H04N19/63 , H04N19/645 , H04N19/70 , H04N19/98
摘要： An image coding device comprising: a tile decomposition portion for decomposing image data into tiles each of N pixels x M pixels and outputting the N x M pixels in the tile as an objective data to be coded for a corresponding each of the tiles; an adjacent pixel adding portion for providing a objective tile to be coded with adjacent pixels necessary for wavelet transformation of the objective tile when such pixels exist at the periphery thereof; a wavelet coding portion for extrapolating a predetermined data when no pixel existing at the periphery of the objective tile, decomposing each of the tiles into subbands and outputting only wavelet coefficients of the objective tile; a management information generating portion for generating management information necessary for independently decoding any desirable tile on a subband-by-subband basis; and a coded data integrating portion for attaching the management information to coded information to generate a bit stream, wherein the management information includes information on a location of the coded information for each of the tiles in the bit stream and information for managing and identifying each of the subbands.
摘要翻译： 一种图像编码装置，包括：瓦片分解部分，用于将图像数据分解成N个像素×M个像素的瓦片，并输出瓦片中的N×M个像素作为对应的每个瓦片进行编码的目标数据; 相邻像素添加部分，用于当这样的像素存在于其周围时，提供要被编码的目标图块用于对目标图块进行小波变换所需的相邻像素; 小波编码部分，用于当不存在于目标瓦片周边的像素时外推预定数据，将每个瓦片分解成子带并仅输出目标瓦片的小波系数; 管理信息生成部分，用于产生在逐个子带的基础上独立地解码任何所需的瓦片所需的管理信息; 以及用于将管理信息附加到编码信息以生成比特流的编码数据整合部分，其中管理信息包括关于比特流中每个瓦片的编码信息的位置的信息以及用于管理和识别每个 子带。
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公开(公告)号：EP1628479A2
公开(公告)日：2006-02-22
申请号：EP05016820.2
申请日：1998-03-11
发明人： Kim, Hee-Yong , Naimpally, Saiprasad , Meyer, Edwin Robert , Sita, Richard , Phillips, Larry , Egawa, Ren
IPC分类号： H04N7/01
CPC分类号： H04N9/64 , G06T1/60 , G06T3/4023 , G06T3/4084 , H04N5/4401 , H04N5/46 , H04N7/0122 , H04N7/0125 , H04N7/014 , H04N7/015 , H04N19/132 , H04N19/162 , H04N19/18 , H04N19/186 , H04N19/30 , H04N19/423 , H04N19/428 , H04N19/44 , H04N19/523 , H04N19/527 , H04N19/59 , H04N19/61 , H04N19/80 , H04N19/82 , H04N19/85 , H04N19/86
摘要： The invention concerns a digital video signal conversion system for decoding and reformatting a baseband encoded digital video signal having a first video display format during a first time interval and a second video display format during a second time interval to produce a decoded video signal suitable for display in a single predetermined video display format, each video display format having an aspect ratio and a resolution, the system comprising:
a digital video signal decoder (171, 172, 174) including:
an input terminal coupled to receive the encoded digital video signal having the first video display format during the first time interval and the second video display format during the second time interval, the first video display format being different from the second video display format and both the first and second video display formats being different from the predetermined video display format;
data retrieval circuitry (209) which extracts from the encoded digital video signal data identifying the first video display format during the first time interval and second video display format during the second time interval; and
signal processing circuitry (212, 214, 216, 218, 230, 232, 282) which decodes the encoded digital video signal to produce a decoded video signal, the signal processing circuitry (212, 214, 216, 218, 230, 232, 282) including a frequency domain filter (216) having first and second cutoff frequencies during the first and second time intervals, respectively, and a down sampling processor (232) to process the filtered digital video signal according to a first down conversion process during the first time interval and to a second down conversion process during the second time interval;
a polyphase filter (282), responsive to a filter control signal, for selecting a coefficient set from among a plurality of coefficient sets, responsive to a downsampling ratio between the decoded video signal and the single predetermined video display format, the polyphase filter down-sampling the decoded video signal using respectively different coefficient sets during the first and second intervals, respectively, to produce data representing an image having the video display format; and
a controller (1150), coupled to receive the identifying data which identifies the extracted first and second video display format, the controller (1150) producing control signals for the digital video signal decoder (171, 172, 174) and for the polyphase filter (282) during the first and second time intervals which cause the decoder and the polyphase filter (282) to convert the encoded digital video signal corresponding to the extracted first and second display formats into the output video signal having the single predetermined video display format during the first and second time intervals.摘要翻译： 本发明涉及一种数字视频信号转换系统，用于在第一时间间隔期间对具有第一视频显示格式的基带编码数字视频信号进行解码和重新格式化，并且在第二时间间隔期间重新格式化第二视频显示格式，以产生适于显示的解码视频信号 在单个预定视频显示格式中，每个视频显示格式具有宽高比和分辨率，所述系统包括：数字视频信号解码器（171,172,174），包括：输入端，耦合以接收编码数字视频信号， 在第一时间间隔期间的第一视频显示格式和第二时间间隔期间的第二视频显示格式，第一视频显示格式不同于第二视频显示格式，并且第一和第二视频显示格式与预定视频不同 显示格式; 数据检索电路（209），其在所述第一时间间隔期间从所述编码数字视频信号中提取识别所述第一视频显示格式的数据，以及在所述第二时间间隔期间提取第二视频显示格式; 以及信号处理电路（212,214,216,218,230,232,282,282），其对所述经编码的数字视频信号进行解码以产生解码的视频信号，所述信号处理电路（212,214,216,218,230,232,282， 282），包括在第一和第二时间间隔期间分别具有第一和第二截止频率的频域滤波器（216），以及下采样处理器（232），用于根据第一次下变频处理处理滤波后的数字视频信号 第一时间间隔和第二时间间隔期间的第二次下变频处理; 响应于滤波器控制信号的多相滤波器（282），用于响应于解码视频信号和单个预定视频显示格式之间的下采样比率，从多个系数组中选择系数组， 分别在第一和第二间隔期间分别使用不同的系数组对解码的视频信号进行采样，以产生表示具有视频显示格式的图像的数据; 以及控制器（1150），其被耦合以接收识别所提取的第一和第二视频显示格式的识别数据，所述控制器（1150）产生用于数字视频信号解码器（171,172,174）和多相滤波器 （282）在第一和第二时间间隔期间，其使得解码器和多相滤波器（282）将对应于所提取的第一和第二显示格式的编码数字视频信号转换成具有单个预定视频显示格式的输出视频信号， 第一和第二时间间隔。
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公开(公告)号：EP1615168A1
公开(公告)日：2006-01-11
申请号：EP04425503.2
申请日：2004-07-09
IPC分类号： G06T3/40
CPC分类号： G06T3/4084
摘要： A method of color interpolation of pixels of an image detected by a digital color sensor comprises the steps of interpolating separately the pixels belonging to each of a plurality of subdivision channels of the pixels of the detected image respectively for primary red-green-blue colors (RGB) or for base hues for generating weighted values relating to either said primary colors or to said base hues for each pixel of the image to be output.
This method generates images with enhanced details because it comprises the steps of defining wavelet coefficients of the wavelet sub-band LL depending on the values of the pixel of each channel; and estimating for each channel wavelet coefficients of the other wavelet sub-bands HL, LH and HH of the image to be output in function of said wavelet coefficients of the wavelet sub-band LL of the image to be output.摘要翻译： 由数字颜色传感器检测的图像的像素的颜色插值的方法包括以下步骤：分别对属于检测图像的像素的多个细分通道中的每一个的像素分别插入用于初级红绿蓝色（ RGB）或用于生成与要输出的图像的每个像素相关的所述原色或所述基色调的加权值的基色调。 该方法产生具有增强细节的图像，因为它包括根据每个通道的像素的值来定义小波子带LL的小波系数的步骤; 并且根据要输出的图像的小波子带LL的所述小波系数的函数，估计要输出的图像的其他小波子带HL，LH和HH的每个信道小波系数。
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公开(公告)号：EP1425717A1
公开(公告)日：2004-06-09
申请号：EP02757607.3
申请日：2002-09-06
申请人： Nline Corporation
发明人： DAI, X., Long , HUNT, Martin, A. , SHEN, Bichuan
CPC分类号： G06T3/4084 , G01N21/95607 , G06T7/32 , G06T7/37
摘要： A method and system for registration system of a first and a corresponding second image are described. The method comprises the steps of converting the spatial image data into frequency domain data using, for example, a fast Fourier transform (FFT); determining a correlation map between the two images by calculating the inverse transform of the complex conjugate product of the frequency domain data of the first and the second image; and identifying a translation between the two images on the basis of the correlation map.
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15.发明公开Thumbnail image zooming using predetermined image sizes 失效Zoomen mit vorbestimmtenGrössenvon Indexbildern
公开(公告)号：EP1420362A2
公开(公告)日：2004-05-19
申请号：EP04075180.2
申请日：1998-01-07
IPC分类号： G06T3/40
CPC分类号： G06F17/30274 , G06T3/4084 , G06T9/00 , H04N19/63
摘要： Disclosed are method and apparatus for the manipulation of thumbnail images as used in image-based browsing file management systems. Disclosed are arrangements whereby zooming in and out of thumbnail images can be performed without a continued need to decompress a true image thus providing for faster operation. Pixel interpolation and/or replication are used to generate intermediate images that are display to deliver to the user a perception of a transitory zoom yet are of sufficient detail to maintain user orientation. Aspect ratio zooming of thumbnail containment areas is also disclosed which facilitates ease of browsing. The compression of thumbnail type images using a discrete wavelet transform facilitates the fast zoom of thumbnails and their associated containment areas.
摘要翻译： 公开了用于操纵在基于图像的浏览文件管理系统中使用的缩略图的方法和装置。 公开了可以在不继续解压缩真实图像的情况下执行缩放图像的放大和缩小的布置，从而提供更快的操作。 像素内插和/或复制用于生成中间图像，其显示以向用户传递对瞬时缩放的感知，但是具有足够的细节以维持用户取向。 还公开了缩略图容纳区域的宽高比缩放，其便于浏览。 使用离散小波变换对缩略图类型图像的压缩有助于缩略图及其相关的包围区域的快速缩放。
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16.发明授权UPSAMPLING FILTER AND HALF-PIXEL GENERATOR FOR AN HDTV DOWNCONVERSION SYSTEM 失效AUFWÄRTSABTASTERFILTER和字段元发生器高分辨率电视实现DOWN SYSTEM
公开(公告)号：EP0908057B1
公开(公告)日：2004-03-03
申请号：EP98910309.8
申请日：1998-03-11
CPC分类号： H04N9/64 , G06T1/60 , G06T3/4023 , G06T3/4084 , H04N5/4401 , H04N5/46 , H04N7/0122 , H04N7/0125 , H04N7/014 , H04N7/015 , H04N19/132 , H04N19/162 , H04N19/18 , H04N19/186 , H04N19/30 , H04N19/423 , H04N19/428 , H04N19/44 , H04N19/523 , H04N19/527 , H04N19/59 , H04N19/61 , H04N19/80 , H04N19/82 , H04N19/85 , H04N19/86
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公开(公告)号：EP0901734B1
公开(公告)日：2004-02-18
申请号：EP98910308.0
申请日：1998-03-11
发明人： SITA, Richard , NAIMPALLY, Saiprasad , PHILLIPS, Larry , MEYER, Edwin, Robert , KIM, Hee-Yong , RYAN, Robert, T. , DAVE, Ghanshyam , BROSZ, Edward , PEARSON, Jereld
CPC分类号： H04N9/64 , G06T1/60 , G06T3/4023 , G06T3/4084 , H04N5/4401 , H04N5/46 , H04N7/0122 , H04N7/0125 , H04N7/014 , H04N7/015 , H04N19/132 , H04N19/162 , H04N19/18 , H04N19/186 , H04N19/30 , H04N19/423 , H04N19/428 , H04N19/44 , H04N19/523 , H04N19/527 , H04N19/59 , H04N19/61 , H04N19/80 , H04N19/82 , H04N19/85 , H04N19/86
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公开(公告)号：EP0798927B1
公开(公告)日：2003-11-12
申请号：EP97103786.6
申请日：1997-03-06
发明人： Merhav, Neri , Bhaskaran, Vasudev
CPC分类号： G11B27/034 , G06T3/4084 , H04N19/40 , H04N19/42 , H04N19/48 , H04N19/51 , H04N19/59 , H04N19/61
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19.发明公开Apparatus and method for resolution transformation of orthogonal transformation image 审中-公开装置和方法，用于改变正交变换图像的分辨率
公开(公告)号：EP1098508A3
公开(公告)日：2003-05-07
申请号：EP00124150.4
申请日：2000-11-07
发明人： Yoshio, Hiroaki , Uenoyama, Tsutomu , Iwasaki, Osamu , Komiya, Daisaku , Yamada, Kazunori , Ando, Atsushi
CPC分类号： G06T9/007 , G06T3/4084
摘要： A resolution transformation apparatus which has longitudinal and lateral change ratio input means 101 for inputting the longitudinal and lateral change ratios of an image, low-frequency orthogonal transformation block extraction means 103 for extracting only low-frequency areas of N orthogonal transformation blocks required for resolution transformation from before-transformation orthogonal transformation image memory 102 for storing orthogonal transformation images before undergoing resolution transformation, resolution transformation means 104 for executing resolution transformation and generating M orthogonal transformation blocks from the N low-frequency orthogonal transformation blocks, and orthogonal transformation block storage means 105 for storing the M orthogonal transformation blocks after resolution transformation in after-transformation orthogonal transformation image memory 106.
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20.发明公开Video decoder including a scale-down function for scaling down an image and method thereof 审中-公开视频解码器具有缩小功能用于减小图像及其方法
公开(公告)号：EP1307054A2
公开(公告)日：2003-05-02
申请号：EP02023727.7
申请日：2002-10-23
发明人： Lee, Seung-Cheol
CPC分类号： G06T3/4084 , H04N19/132 , H04N19/176 , H04N19/51 , H04N19/59 , H04N19/61 , H04N19/90
摘要： A compression video decoder and a method thereof, which decodes a standard compressed and encoded video stream, directly outputs the decoded image according to a screen size of a display device without using a special scale-down block for scaling down the image, increases a speed by reducing computational complexity for scaling down the image, maintains quality of the original image, and minimizes distortion. The compression video decoder for decoding the compressed and encoded video stream according to a video compression method using discrete cosine transform (DCT) and motion compensation (MC), includes an inverse discrete cosine transform (IDCT) block for extracting an N×N block DCT image in an image scale-down ratio according to DC coefficients from an 8×8 block DCT image which has been obtained from the compressed and encoded video stream and will be IDCT-processed, multiplying the respective coefficients by N/8, and performing the IDCT thereon, and an MC block for performing the MC by using the IDCT-processed reference image and the current image, and reducing a magnitude of a motion vector and a range of the MC at a ratio of N:8.
摘要翻译： 压缩视频解码器及其方法，其中压缩的标准和编码的视频流进行解码，直接输出雅丁到显示装置的屏幕尺寸的解码图像，而无需使用用于按比例缩小图像中的特殊比例缩小块，增加的速度 通过减少计算复杂性为按比例缩小的图像，保持原始图像的质量，并最大限度地减少失真。 使用离散余弦变换（DCT）和运动补偿（MC）的压缩和编码的视频流雅丁解码视频压缩方法中的压缩视频解码器包括在逆离散余弦变换（IDCT）块，用于在N×N块的DCT的图像中提取 在8×8块DCT图像的图像缩小率雅丁到DC系数从已经从所述压缩和编码的视频流中获得和将IDCT处理，由N / 8乘以respectivement系数，并执行其上的IDCT，并 到MC块，用于通过使用IDCT处理的参考图像和当前图像执行MC，和减少运动矢量的大小，并在N的比率的范围内的MC的：第八
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