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91. 发明授权

US5588069A Image processing apparatus for advantageously encoding blocks of data having either substantially the same or varied colors 失效
标题翻译：用于有利地编码具有基本上相同或不同颜色的数据块的图像处理装置
公开(公告)号：US5588069A
公开(公告)日：1996-12-24
申请号：US397716
申请日：1995-03-02
申请人： Akihiro Katayama , Yasuhiko Yasuda
发明人： Akihiro Katayama , Yasuhiko Yasuda
IPC分类号： G06T9/00 , H04N1/41 , H04N1/415 , H04N1/56 , H04N1/64 , H04N11/04 , H04N19/117 , H04N19/132 , H04N19/136 , H04N19/14 , H04N19/157 , H04N19/176 , H04N19/186 , H04N19/189 , H04N19/20 , H04N19/423 , H04N19/59 , H04N19/60 , H04N19/625 , H04N19/80 , H04N19/85 , H04N19/86 , H04N19/90 , H04N19/91 , H04N19/94 , G06K9/36
CPC分类号： H04N1/642 , H04N1/41 , H04N1/415 , H04N1/56 , H04N1/64
摘要： Method and apparatus for efficiently encoding image data of a color facsimile or the like are provided. A specific color judgment unit discriminates a specific color portion such as white or blank portion of the image data inputted from an image input unit. An orthogonal transforming process is not executed to the blank block, thereby raising an encoding efficiency. A discrimination signal is subjected to a dynamic arithmetical encoding, thereby producing code data.
摘要翻译：提供了用于有效地编码彩色传真机等的图像数据的方法和装置。特定颜色判断单元鉴别从图像输入单元输入的图像数据的特定颜色部分，例如白色或空白部分。不对空白块执行正交变换处理，从而提高编码效率。对判别信号进行动态算术编码，从而产生代码数据。

92. 发明授权

US5576835A Method for run-length coding for shortening transmission time 失效
标题翻译：用于缩短传输时间的游程长度编码方法
公开(公告)号：US5576835A
公开(公告)日：1996-11-19
申请号：US108594
申请日：1993-09-03
申请人： Josef Dirr
发明人： Josef Dirr
IPC分类号： G06T9/00 , H04L27/24 , H04N1/41 , H04N1/419 , H04N7/24 , H04N11/04 , H04N21/2383 , H04N21/438 , H04N1/415
CPC分类号： H04N21/2383 , G06T9/005 , H04L27/24 , H04N1/41 , H04N1/419 , H04N11/042 , H04N21/4382
摘要： A method is provided for coding images and originals, for example, for telefax and color television. The method saves hardware and allows the transmission time of information to be shortened, particularly for black and white digital or numeric longitudinal coding. According to the method of the present invention, the same code words are assigned for black and white run-lengths. As discriminating criterion, the input sequence of black and white is used. During coding of several successive white lines, the transmission time can be further shortened by providing the coded number of white lines before or after the code word for the white line. During gray coding, transmission time can further be reduced by subdividing the gray scales or binary code words with deliberate redundancy, if necessary, since in this case many characters occur successively and can be transmitted in the same way as the white lines. During color image transmission, transmission time is further reduced by code multiplexing and, if necessary, by QAM-based transmission, whereas in addition the PAM-coded information is D.C. biased. The sum alternating current thus varies in phases in the range of 90 degrees only.
摘要翻译： PCT No.PCT / EP92 / 02977 371日期1993年9月3日 102（e）日期1993年9月3日PCT提交1992年12月12日PCT公布。公开号WO93 / 04572 日期1993年3月18日提供了用于编码图像和原件的方法，例如用于传真和彩色电视。该方法节省了硬件，并且可以缩短信息的传输时间，特别是对于黑白数字或数字纵向编码。根据本发明的方法，对于黑白行程分配相同的代码字。作为判别标准，使用黑白的输入序列。在编码几个连续的白线时，可以通过在白线的码字之前或之后提供白线的编码数来进一步缩短发送时间。在灰度编码期间，如果需要，通过细分灰度级或二进制码字，可以进一步降低传输时间，因为在这种情况下，许多字符连续发生，并且可以以与白线相同的方式发送。在彩色图像传输期间，通过码复用进一步减少传输时间，并且如果需要，通过基于QAM的传输进一步减少传输时间，而另外PAM编码的信息是D.C.偏置的。因此，总和交流电仅在90度的范围内变化。

93. 发明授权

US5563718A Image coding by use of discrete cosine transforms 失效
标题翻译：使用离散余弦变换的图像编码
公开(公告)号：US5563718A
公开(公告)日：1996-10-08
申请号：US159733
申请日：1993-11-30
申请人： Munib A. Wober , Michael L. Reisch
发明人： Munib A. Wober , Michael L. Reisch
IPC分类号： G06F17/14 , G06T9/00 , H03M7/30 , H04N1/41 , H04N7/26 , H04N7/30 , H04N1/415
CPC分类号： H04N19/527 , G06F17/147 , H04N19/86
摘要： Image coding methods and apparatus employing discrete cosine transforms for supressing and/or reducing blocking artifacts using a JPEG file format. The methods can be implemented on JPEG hardware slightly modified to provide access to discrete cosine transform coefficients. Filtering techniques by which an overlap procedure for implementing the inventive methods are also disclosed.
摘要翻译：使用离散余弦变换的图像编码方法和装置，用于使用JPEG文件格式来抑制和/或减少块伪影。该方法可以在略微修改的JPEG硬件上实现，以提供对离散余弦变换系数的访问。还公开了用于实现本发明方法的重叠过程的过滤技术。

94. 发明授权

US5555029A Method and apparatus for post-processing decoded image data 失效
标题翻译：用于后处理解码图像数据的方法和装置
公开(公告)号：US5555029A
公开(公告)日：1996-09-10
申请号：US508643
申请日：1995-07-28
申请人： Sang-Ho Kim
发明人： Sang-Ho Kim
IPC分类号： H04N7/24 , G06T5/20 , H04N1/413 , H04N1/415 , H04N5/21 , H04N19/00
CPC分类号： H04N19/527 , H04N19/86 , H04N5/21
摘要： A post-processing filter apparatus for use in an image signal decoding system, capable of improving the image quality of the system, comprises a memory for storing decoded image data of a current frame; a controller for assigning each pixel value included in the stored decoded image data as a target pixel value in sequence, the target pixel value representing the value of a target pixel to be filtered, and for producing information representing the position of the target pixel; a pixel region determinator for generating a selection signal representing whether or not the target pixel belongs to a boundary region of a block in the stored decoded image data by using the position information of the target pixel, wherein the boundary region denotes a region which includes pixels placed along the boundary of the block; a filtering device for selectively filtering the target pixel value in response to the selection signal to thereby produce a filtered target pixel value; a updating circuit for updating the target pixel value with the filtered target pixel value; and a circuit for retrieving the updated pixel value when all of the pixels contained in the decoded image data have been updated.
摘要翻译：一种用于能够提高系统的图像质量的图像信号解码系统中的后处理滤波装置，包括存储当前帧的解码图像数据的存储器; 控制器，用于将存储的解码图像数据中包括的每个像素值依次分配为目标像素值，目标像素值表示要滤波的目标像素的值，并用于产生表示目标像素的位置的信息; 像素区域确定器，用于通过使用目标像素的位置信息来产生表示目标像素是否属于所存储的解码图像数据中的块的边界区域的选择信号，其中边界区域表示包括像素的区域沿着块的边界放置; 滤波装置，用于响应于选择信号选择性地过滤目标像素值，从而产生滤波的目标像素值; 更新电路，用于利用滤波的目标像素值更新目标像素值; 以及当解码图像数据中包含的所有像素已被更新时用于检索更新的像素值的电路。

95. 发明授权

US5500907A Image signal analyzing system 失效
标题翻译：图像信号分析系统
公开(公告)号：US5500907A
公开(公告)日：1996-03-19
申请号：US903284
申请日：1992-06-24
申请人： Setsu Kunitake , Koh Kamizawa , Yutaka Koshi , Kazuhiro Suzuki
发明人： Setsu Kunitake , Koh Kamizawa , Yutaka Koshi , Kazuhiro Suzuki
IPC分类号： H04N1/415 , G06K9/62 , G06T7/60 , G06T9/00 , H04N7/26 , H04N7/28 , H04N11/02
CPC分类号： H04N19/94 , G06K9/6282
摘要： An image signal analyzing system capable of accomplishing shape analysis for processing or coding an image with easy, by space division using two orthogonal representative vectors, or by differential representative vectors given by the difference between representative vectors. With such a system, inner products between mean separated blocks produced by a mean separated unit and a differential representative vector set stored in a memory in advance are computed by inner product computing unit disposed into a binary tree shape having n stages. Positive/negative signs expressing resulting inner products in the respective stages of the binary tree computed by the inner product computing unit are held, as indexes, by n index holding means sequentially, and an index representing the shape of input image information is obtained from the n indexes held by the index holding unit.
摘要翻译：一种图像信号分析系统，其能够通过使用两个正交代表矢量的空间划分，或者由代表矢量之间的差异给出的差分代表矢量，容易地进行图像处理或编码的形状分析。利用这样的系统，通过设置成具有n个阶段的二叉树形状的内积计算单元计算由平均分离单位产生的平均分离块和预先存储在存储器中的差分代表向量集合之间的内积。由内积计算单元计算出的在二叉树的各个阶段中产生的内积的正/负符号依次由n个索引保持装置作为索引保存，并且从该索引保存装置获得表示输入图像信息的形状的索引指数持有单位持有的n种指数。

96. 发明授权

US5481553A Methods and apparatus for preventing rounding errors when transform coefficients representing a motion picture signal are inversely transformed 失效
标题翻译：当表示运动图像信号的变换系数被逆变换时，用于防止舍入误差的方法和装置
公开(公告)号：US5481553A
公开(公告)日：1996-01-02
申请号：US202783
申请日：1994-02-28
申请人： Teruhiko Suzuki , Yoichi Yagasaki , Tatsuya Sudo , Toru Okazaki
发明人： Teruhiko Suzuki , Yoichi Yagasaki , Tatsuya Sudo , Toru Okazaki
IPC分类号： H04N5/92 , G06F17/14 , G06T9/00 , H03M7/30 , H03M7/36 , H03M7/40 , H04N1/41 , H04N19/102 , H04N19/136 , H04N19/176 , H04N19/189 , H04N19/196 , H04N19/423 , H04N19/48 , H04N19/50 , H04N19/503 , H04N19/51 , H04N19/60 , H04N19/61 , H04N19/625 , H04N19/85 , H04N19/89 , H04N19/91 , H04N1/415
CPC分类号： G06F17/147 , H04N19/126 , H04N19/18 , H04N19/42 , H04N19/45 , H04N19/60 , H04N19/61 , H04N19/85 , H04N19/89 , H04N19/124 , H04N19/65
摘要： Mismatch errors occur in the local decoder of a MPEG-standard compressor for a motion picture signal, and in an MPEG-standard expander for a compressed motion picture signal. This is because of the lack of a standard for rounding results of *0.5 (* is an integer) obtained when a set of transform coefficients resulting from compressing the motion picture signal is inversely orthogonally transformed. The invention prevents mismatch errors by pre-processing the set of transform coefficients prior to the inverse orthogonal transform. The transform coefficients in the set are summed, and the parity (odd or even) of the sum is judged. When the parity of the sum is judged to be even, the parity of one of the transform coefficients in the set is inverted to provide a parity-inverted transform coefficient. This makes the parity of the sum odd. Then, when the set of transform coefficients including the parity-inverted transform coefficient is inversely orthogonally transformed, none of the results of the orthogonal transform will have a value of *0.5.
摘要翻译：在用于运动图像信号的MPEG标准压缩器的本地解码器中以及用于压缩运动图像信号的MPEG标准扩展器中发生不匹配错误。这是因为当由压缩运动图像信号产生的一组变换系数被逆向正交变换时，缺少* 0.5（*是整数）的舍入结果的标准。本发明通过在逆正交变换之前预处理变换系数集来防止失配误差。将集合中的变换系数相加，并且判断和的奇偶校验（奇数或偶数）。当总和的奇偶校验被判断为偶数时，该组中的一个变换系数的奇偶校验被反转以提供奇偶校验反转换系数。这使得奇数的奇数。然后，当包括奇偶校验反转换系数的变换系数集合被逆向正交变换时，正交变换的结果都不会具有* 0.5的值。

97. 发明授权

US5467086A Apparatus and method of coding/decoding video data 失效
标题翻译：视频数据编码/解码的装置和方法
公开(公告)号：US5467086A
公开(公告)日：1995-11-14
申请号：US78343
申请日：1993-06-18
申请人： Jechang Jeong
发明人： Jechang Jeong
IPC分类号： H03M7/30 , G06T9/00 , H04N1/41 , H04N1/415 , H04N3/27 , H04N3/28 , H04N19/00 , H04N19/12 , H04N19/134 , H04N19/146 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/60 , H04N19/61 , H04N19/70 , H04N19/90 , H04N19/91 , H03M7/00 , H04N7/12
CPC分类号： G06T9/008 , H04N19/51 , H04N19/61 , H04N19/107
摘要： A method and apparatus for coding and decoding video data including a still image or active image on an intraframe basis. The coding system defines a search area composed of reconstructed data blocks and determines which one of the blocks within the search area has a pattern similar to a present data block that is in the process of being coded. The system then computes the amount of displacement between the present data block and the reconstructed data block from the search area that has a pattern very similar to that of the present data block. The coded data is then stored in memory or transmitted. The decoding system implements a reverse process of the coding system to decode the coded data based on the displacement vector.
摘要翻译：一种用于在帧内基础上对包括静止图像或活动图像的视频数据进行编码和解码的方法和装置。编码系统定义由重建的数据块组成的搜索区域，并且确定搜索区域内的哪一个块具有类似于正被编码的当前数据块的模式。然后，系统从具有与当前数据块非常相似的模式的搜索区域中计算当前数据块和重构数据块之间的位移量。编码数据然后存储在存储器中或发送。解码系统实现编码系统的反向处理，以基于位移矢量解码编码数据。

98. 发明授权

US5444487A Adaptive dynamic range encoding method and apparatus 失效
标题翻译：自适应动态范围编码方法和装置
公开(公告)号：US5444487A
公开(公告)日：1995-08-22
申请号：US162273
申请日：1993-12-07
申请人： Tetsujiro Kondo , Kunio Kawaguchi
发明人： Tetsujiro Kondo , Kunio Kawaguchi
IPC分类号： H03M7/50 , G06T9/00 , H04N1/41 , H04N1/415 , H04N19/00 , H04N19/124 , H04N19/134 , H04N19/136 , H04N19/154 , H04N19/176 , H04N19/186 , H04N19/192 , H04N19/196 , H04N19/423 , H04N19/85 , H04N19/98 , H04N7/40
CPC分类号： H04N19/98
摘要： An adaptive dynamic range encoding method and device in which evaluation data mainly centered about the amount of the change in the spatial direction of picture data in a block is detected, and re-quantization is performed which will give a minimum value of the evaluation data. The re-quantization is performed at an optimum quantization step conforming to the picture in the block in such a manner that picture portions having the same level may remain at the same level after re-quantization. This renders it possible to eliminate quantization distortions from being produced in the reproduced picture.
摘要翻译：检测以块为单位的以图像数据的空间方向的变化量为中心的评价数据的自适应动态范围编码方法和装置，并且执行将给出评价数据的最小值的重新量化。以符合块中的图像的最佳量化步骤，以相同电平的图像部分在重新量化后可以保持在相同电平的方式执行重新量化。这使得可以消除在再现的图像中产生的量化失真。

99. 发明授权

US5432615A Compression/decompression method for image data 失效
标题翻译：图像数据的压缩/解压缩方法
公开(公告)号：US5432615A
公开(公告)日：1995-07-11
申请号：US262935
申请日：1994-06-21
申请人： Mitsuhiro Watanabe
发明人： Mitsuhiro Watanabe
IPC分类号： H03M7/30 , G06T9/00 , H04N1/41 , H04N1/415 , H04N7/54 , H04N19/126 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/463 , H04N19/60 , H04N19/625 , H04N19/70 , H04N19/85 , H04N19/91 , H04N19/93
CPC分类号： H04N7/54 , H04N19/126 , H04N19/132 , H04N19/149 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/59 , H04N19/60 , H04N19/124 , H04N19/146
摘要： A compression/decompression method for image data allows addition of a code amount control amount in units of data of one block without necessitating an excessive header capacity. In compression, a quantization conversion coefficient of a quantization conversion coefficient set is replaced with a code amount control amount, and a resulted quantization conversion coefficient set is coded, whereafter a quantization coefficient of a quantization coefficient set corresponding to the code amount control amount of the quantization conversion coefficient set is changed to 0. In decompression, the quantization coefficient set is extracted, and coded data are decoded in units of data of one block. Then, the code amount control amount is extracted from the quantization conversion coefficient set of the decoded data.
摘要翻译：用于图像数据的压缩/解压缩方法允许以一个块的数据为单位添加码量控制量，而不需要过多的报头容量。在压缩中，将量化变换系数组的量化变换系数代入代码量控制量，对所生成的量化变换系数组进行编码，之后对应于量化变换系数组的代码量控制量的量化系数设定量化系数量化变换系数组被改变为0.在解压缩中，提取量化系数集合，并以一个块的数据为单位对编码数据进行解码。然后，从解码数据的量化变换系数组中提取码量控制量。

100. 发明授权

US5428395A Encoding and decoding method and apparatus thereof using a variable picture partitioning technique 失效
标题翻译：使用可变图像分割技术的编码和解码方法及其装置
公开(公告)号：US5428395A
公开(公告)日：1995-06-27
申请号：US78134
申请日：1993-06-18
申请人： Jechang Jeong
发明人： Jechang Jeong
IPC分类号： H03M7/30 , G06T9/00 , H03M7/40 , H04N1/41 , H04N1/415 , H04N7/24 , H04N7/56 , H04N19/00 , H04N19/423 , H04N19/503 , H04N19/86 , H04N7/36
CPC分类号： H04N7/56 , H04N19/119 , H04N19/423 , H04N19/51 , H04N19/527 , H04N19/61 , H04N19/85 , H04N19/86
摘要： An encoding and decoding system in which video data is partitioned into blocks, each of which has a predetermined dimension, and the partitioned block is encoded and decoded. To suppress blocking artifacts which occur at the boundary portions of the blocks, the positions of the partitioned blocks are slightly altered for every frame and then encoded. Then the encoded video data is variably partitioned and decoded in a similar manner to the encoding procedure. To variably partition a picture, the encoding and decoding systems include an address generator for variably partitioning the blocks in a horizontal direction of the picture, another address generator for variably partitioning the blocks in a vertical direction of the picture, and a sync generator for synchronizing the partitioning of every frame of video data in the encoding and decoding procedures, respectively.
摘要翻译：一种编码和解码系统，其中视频数据被分割成块，每个块具有预定尺寸，并且对该分割块进行编码和解码。为了抑制在块的边界部分发生的块伪影，对于每个帧，分区块的位置稍微改变，然后被编码。然后，编码视频数据以与编码过程类似的方式被可变地分割和解码。为了可变地分割图像，编码和解码系统包括用于在图像的水平方向上可变地划分块的地址生成器，用于在图像的垂直方向上可变地划分块的另一地址生成器，以及用于同步分别在编码和解码过程中分割每帧视频数据。

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