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1.发明授权
公开(公告)号：US5162923A
公开(公告)日：1992-11-10
申请号：US312755
申请日：1989-02-21
IPC分类号： H04N1/41
CPC分类号： H04N1/41
摘要： An image encoding method, and an apparatus therefor, enabling rapid comprehension of the outline of the entire image promptly, at the decoding of the encoded image information, and also an image encoding method, and an apparatus therefor, capable of efficient encoding adapted for the state of the image to be encoded. Image information is divided into plural block, each consisting of plural pixels, the frequency of the image in each block is analyzed, the frequency components of the image in each block are separated into plural bands, and the frequency components contained in each of said plural bands are encoded.
摘要翻译： 一种图像编码方法及其装置，能够在对编码图像信息进行解码的同时迅速地理解整个图像的轮廓，以及图像编码方法及其装置，其能够进行有效编码， 要编码的图像的状态。 图像信息被分成多个块，每个块由多个像素组成，每个块中的图像的频率被分析，每个块中的图像的频率分量被分成多个频带，并且包含在所述多个 频带被编码。
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公开(公告)号：US5621826A
公开(公告)日：1997-04-15
申请号：US444770
申请日：1995-05-19
CPC分类号： H04N1/4172 , H04N1/40062 , H04N1/40068 , H04N1/409 , H04N1/4105
摘要： An image reduction apparatus includes a smoothing unit for smoothing binary image data, a binarization unit for binarizing an output from the smoothing unit, a detection unit for detecting an attribute of the binary image data smoothed by the smoothing unit, a plurality of correction units corresponding to a plurality of attributes, and a selector for selecting one of the correction units in accordance with the attribute detected by the detection unit. An output from the binarization unit is corrected by the correction unit selected by the selector.
摘要翻译： 图像缩小装置包括用于平滑二进制图像数据的平滑单元，用于对来自平滑单元的输出进行二值化的二值化单元，用于检测由平滑单元平滑化的二值图像数据的属性的检测单元，对应于多个校正单元 多个属性，以及选择器，用于根据由检测单元检测的属性来选择一个校正单元。 来自二值化单元的输出由选择器选择的校正单元校正。
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公开(公告)号：US5345517A
公开(公告)日：1994-09-06
申请号：US895241
申请日：1992-06-08
CPC分类号： H04N1/4172 , H04N1/40062 , H04N1/40068 , H04N1/409 , H04N1/4105
摘要： An image reduction apparatus includes a smoothing unit for smoothing binary image data, a binarization unit for binarizing an output from the smoothing unit, a detection unit for detecting an attribute of the binary image data smoothed by the smoothing unit, a plurality of correction units corresponding to a plurality of attributes, and a selector for selecting one of the correction units in accordance with the attribute detected by the detection unit. An output from the binarization unit is corrected by the correction unit selected by the selector.
摘要翻译： 图像缩小装置包括用于平滑二进制图像数据的平滑单元，用于对来自平滑单元的输出进行二值化的二值化单元，用于检测由平滑单元平滑化的二值图像数据的属性的检测单元，对应于多个校正单元 多个属性，以及选择器，用于根据由检测单元检测的属性来选择一个校正单元。 来自二值化单元的输出由选择器选择的校正单元校正。
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4.发明授权Method and apparatus for image encoding in which reference pixels for predictive encoding can be selected based on image size 失效用于图像编码的方法和装置可以基于图像大小来选择用于预测编码的参考像素
公开(公告)号：US5086487A
公开(公告)日：1992-02-04
申请号：US438082
申请日：1989-11-02
摘要： There is disclosed an image encoding system in which a size of an image to be encoded is inputted, reference pixel positions or the number of reference pixels are determined in accordance with an input image size, and a noticed pixel is encoded by using reference pixels of the determined pixel positions or the determined member.
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公开(公告)号：US5448654A
公开(公告)日：1995-09-05
申请号：US206212
申请日：1994-03-03
CPC分类号： H04N1/4172 , H04N1/40062 , H04N1/40068 , H04N1/409 , H04N1/4105
摘要： An image reduction apparatus includes a smoothing unit for smoothing binary image data, a binarization unit for binarizing an output from the smoothing unit, a detection unit for detecting an attribute of the binary image data smoothed by the smoothing unit, a plurality of correction units corresponding to a plurality of attributes, and a selector for selecting one of the correction units in accordance with the attribute detected by the detection unit. An output from the binarization unit is corrected by the correction unit selected by the selector.
摘要翻译： 图像缩小装置包括用于平滑二进制图像数据的平滑单元，用于对来自平滑单元的输出进行二值化的二值化单元，用于检测由平滑单元平滑化的二值图像数据的属性的检测单元，对应于多个校正单元 多个属性，以及选择器，用于根据由检测单元检测的属性来选择一个校正单元。 来自二值化单元的输出由选择器选择的校正单元校正。
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公开(公告)号：US5309524A
公开(公告)日：1994-05-03
申请号：US886945
申请日：1992-05-22
CPC分类号： G06T3/40 , H04N1/3935
摘要： An image reducing apparatus for obtaining a reduced image from an image of an original size has: a filter to execute a filtering process to the image of the original size every image block of a predetermined size; a discriminating circuit to discriminate a structure of the image block filter processed by the filter; a correcting circuit to correct an output of the filter in accordance with the discriminated structure; and a binarization unit to binarize the output of the filter. By executing the reduction suitable for the image content in consideration of the peripheral images of the object pixel to be reduced and the peripheral reduced images, a reduced image can be obtained without extinguishing the content of the image of the original size, and especially, without fading or losing the thin lines in the reduced image.
摘要翻译： 用于从原始尺寸的图像获得缩小图像的图像缩小装置具有：对于预定尺寸的每个图像块对原始大小的图像执行滤波处理的滤波器; 识别电路，用于区分由滤波器处理的图像块滤波器的结构; 校正电路，用于根据鉴别结构校正滤波器的输出; 以及二值化单元来二值化滤波器的输出。 考虑到要减少的对象像素的周边图像和周边缩小图像，通过执行适合于图像内容的缩小，可以获得缩小的图像而不消除原始尺寸的图像的内容，特别是没有 在缩小图像中衰减或丢失细线。
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公开(公告)号：US5371606A
公开(公告)日：1994-12-06
申请号：US970250
申请日：1992-11-02
CPC分类号： H04N1/4172 , H04N1/40068
摘要： An image encoding apparatus has a forming unit for forming a second image having a different resolution on the basis of a first image, an encoding unit for separately encoding the first and second images, and a changing unit for changing, between the encoding operations of the first and second images, the number or positions of reference pixels referred to by the encoding unit for encoding.
摘要翻译： 图像编码装置具有形成单元，用于基于第一图像形成具有不同分辨率的第二图像，用于分别编码第一和第二图像的编码单元和用于在第一图像的编码操作之间进行改变的改变单元 第一和第二图像，用于编码的编码单元所参考的参考像素的数量或位置。
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公开(公告)号：US5138672A
公开(公告)日：1992-08-11
申请号：US670528
申请日：1991-03-18
CPC分类号： G06T3/4023 , H04N1/3935
摘要： An image reducing apparatus for obtaining a reduced image from an image of an original size has: a filter to execute a filtering process to the image of the original size every image block of a predetermined size; a discriminating circuit to discriminate a structure of the image block filter processed by the filter; a correcting circuit to correct an output of the filter in accordance with the discriminated structure; and a binarization unit to binarize the output of the filter. By executing the reduction suitable for the image content in consideration of the peripheral images of the object pixel to be reduced and the peripheral reduced images, a reduced image can be obtained without extinguishing the content of the image of the original size, and especially, without fading or losing the thin lines in the reduced image.
摘要翻译： 用于从原始尺寸的图像获得缩小图像的图像缩小装置具有：对于预定尺寸的每个图像块对原始大小的图像执行滤波处理的滤波器; 识别电路，用于区分由滤波器处理的图像块滤波器的结构; 校正电路，用于根据鉴别结构校正滤波器的输出; 以及二值化单元来二值化滤波器的输出。 通过考虑到要减少的对象像素的外围图像和周边缩小图像来执行适合于图像内容的缩小，可以获得缩小的图像而不消除原始尺寸的图像的内容，特别是没有 在缩小图像中衰减或丢失细线。
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公开(公告)号：US5903366A
公开(公告)日：1999-05-11
申请号：US136619
申请日：1993-10-15
摘要： A color image encoding method to encode a color image signal expressed by a plural number of color component signals, wherein the plural number of color component signals of a pixel of interest are input serially, encoding conditions are serially determined in relation to each color component signal of the pixel of interest input serially, and each color component signal of the pixel of interest input serially is encoded according to the encoding conditions determined serially.
摘要翻译： 一种彩色图像编码方法，用于对由多个颜色分量信号表示的彩色图像信号进行编码，其中，将感兴趣像素的多个颜色分量信号串行输入，编码条件相对于每个颜色分量信号 ，并且根据串行确定的编码条件，对串行输入的兴趣像素的每个颜色分量信号进行编码。
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公开(公告)号：US5412486A
公开(公告)日：1995-05-02
申请号：US112141
申请日：1993-08-26
CPC分类号： H04N1/3875 , G06T3/40 , G06T3/4007 , H04N1/32101 , H04N1/32128 , H04N1/4172 , H04N1/32112 , H04N1/32122 , H04N2201/3202 , H04N2201/3226 , H04N2201/3271 , H04N2201/3277
摘要： An image processing apparatus receives first image data, and hierarchically reduces the size of the image represented by this first image data to generate second image data. An encoder generates encoded image data by encoding the second image data in a first mode, or by encoding the first image data in a second mode.
摘要翻译： 图像处理装置接收第一图像数据，并分级地减小由该第一图像数据表示的图像的大小，以生成第二图像数据。 编码器通过以第一模式对第二图像数据进行编码或者以第二模式对第一图像数据进行编码来生成编码图像数据。
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