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185 条记录 (耗时 0.04 秒)

    Binary image data coding method having the function of correcting errors derived from coding
    42.
    发明授权
    Binary image data coding method having the function of correcting errors derived from coding 失效
    具有校正从编码导出的错误的功能的二进制图像数据编码方法

    公开(公告)号：US5282256A

    公开(公告)日：1994-01-25

    申请号：US900761

    申请日：1992-06-19

    申请人： Hidefumi Ohsawa ,  Akihiro Katayama

    发明人： Hidefumi Ohsawa ,  Akihiro Katayama

    IPC分类号： G06T9/00 ,  H04N1/41 ,  G06K9/36

    CPC分类号： G06T9/004 ,  H04N1/4105

    摘要： An image data coding method for a case where image data are transmitted or filed upon being binary coded includes steps of replacing a predetermined pixel by a predicted value predicted by a plurality of pixels peripheral to the predetermined pixel, in conformance with a coded image data compression technique, and performing binary coding while dispersing an error, which is generated by the replacement, among peripheral pixels. Also provided are a variety of image data coding apparatus for practicing this image data coding method. The invention makes it possible to perform binary coding and compression of half-tone image data very efficiently.

    摘要翻译： 图像数据编码方法，用于在二进制编码时发送或归档图像数据的情况，包括以下步骤：根据编码图像数据压缩将预定像素替换为由预定像素周围的多个像素预测的预测值 技术，并且在周边像素之间分散由替换产生的错误的同时执行二进制编码。 还提供了用于实施该图像数据编码方法的各种图像数据编码装置。 本发明使得可以非常有效地执行半色调图像数据的二进制编码和压缩。

    Image processing method and apparatus with error diffusion capability
    44.
    发明授权
    Image processing method and apparatus with error diffusion capability 失效
    具有误差扩散能力的图像处理方法和装置

    公开(公告)号：US4975786A

    公开(公告)日：1990-12-04

    申请号：US289017

    申请日：1988-12-23

    申请人： Akihiro Katayama ,  Hidefumi Ohsawa ,  Shinichi Ishida ,  Masahiro Sakamoto ,  Yasuyuki Shinada

    发明人： Akihiro Katayama ,  Hidefumi Ohsawa ,  Shinichi Ishida ,  Masahiro Sakamoto ,  Yasuyuki Shinada

    IPC分类号： H04N1/405

    CPC分类号： H04N1/4052

    摘要： An image processing apparatus such as a digital printer or digital facsimile apparatus for half tone processing input image data has: an input device to input image data indicative of a concentration of an image; a discriminating circuit to discriminate whether the input image data is smaller than a threshold value or not; a binarizing circuit to binarize the input image data into binary data of high and low levels; and a setting circuit to set the binary output of the image data to the low (0) level irrespective of the result of the binarization by the binarizing circuit when the input image data is determined to be smaller than the threshold value. The input device includes a reading circuit to read the original image and a generator to generate image data indicative of the original image concentration. When the pixel concentration to be processed by an error diffusion method is smaller than the threshold value, the error data generated for that pixel is set to 0, with the result that particles-like noises in the high contrast portion are eliminated and the encoding efficiency in highlight portions is improved. Thus, a high quality image of excellent resolution and gradations can be transmitted at a high speed.

    摘要翻译： 用于半色调处理输入图像数据的诸如数字打印机或数字传真装置的图像处理装置具有：输入指示图像浓度的图像数据的输入装置; 识别电路，用于识别输入图像数据是否小于阈值; 二进制化电路，将输入图像数据二值化为高，低电平的二进制数据; 以及设置电路，用于当输入图像数据被确定为小于阈值时，将图像数据的二进制输出设置为低（0）电平，而不考虑二值化电路的二值化结果。 输入装置包括读取原始图像的读取电路和发生器，以产生指示原始图像浓度的图像数据。 当通过误差扩散方法处理的像素浓度小于阈值时，为该像素生成的误差数据被设置为0，结果是高对比度部分中的颗粒状噪声被消除，并且编码效率 亮点部分得到改善。 因此，可以高速地传输优异的分辨率和灰度的高质量图像。

    Medical diagnosis support system
    46.
    发明授权
    Medical diagnosis support system 有权

    公开(公告)号：US10068056B2

    公开(公告)日：2018-09-04

    申请号：US12748324

    申请日：2010-03-26

    申请人： Kazuhiro Miyasa ,  Yoshio Iizuka ,  Akihiro Katayama ,  Ryo Ishikawa

    发明人： Kazuhiro Miyasa ,  Yoshio Iizuka ,  Akihiro Katayama ,  Ryo Ishikawa

    IPC分类号： A61B5/00 ,  G06F19/00 ,  G06Q50/22

    摘要： This invention provides a mechanism for making a doctor surely follow correct procedures in which the doctor confirms diagnosis information obtained by computer processing after he or she has completed interpretation. A medical diagnosis support apparatus executes diagnosis processing for acquiring medical diagnosis information from an image to be interpreted by computer processing. The medical diagnosis support apparatus accepts interpretation information as an interpretation result of the image to be interpreted, which information is input by, for example, a doctor. The medical diagnosis support apparatus calculates a degree of matching between the diagnosis information and interpretation information, and permits to present the diagnosis information acquired by the diagnosis processing when the calculated degree of matching exceeds a predetermined threshold.

    Image processing apparatus for processing tomographic image of subject's eye, imaging system, method for processing image, and recording medium
    49.
    发明授权
    Image processing apparatus for processing tomographic image of subject's eye, imaging system, method for processing image, and recording medium 有权
    用于处理对象眼睛的断层图像的图像处理装置，成像系统，用于处理图像的方法和记录介质

    公开(公告)号：US08761481B2

    公开(公告)日：2014-06-24

    申请号：US13310489

    申请日：2011-12-02

    申请人： Yuta Nakano ,  Akihiro Katayama

    发明人： Yuta Nakano ,  Akihiro Katayama

    IPC分类号： G06K9/00 ,  A61B3/14

    CPC分类号： G06T7/12 ,  G06T7/11 ,  G06T2207/10101 ,  G06T2207/30041

    摘要： An image processing apparatus includes a detection unit configured to detect layers on the retina based on tomographic images of the retina, an acquisition unit configured to acquire a region having a larger curvature of the boundary surface between the retina and the corpus vitreum than a threshold value, and a determination unit configured to determine an optic disc of the retina based on the optical disc including a region where a specific layer is not detected by the detection unit and the region acquired by the acquisition unit.

    摘要翻译： 一种图像处理装置，包括：检测单元，被配置为基于视网膜的断层图像来检测所述视网膜上的层;获取单元，被配置为获取具有比所述视网膜和所述玻璃体之间的所述边界表面的曲率大的区域， 以及确定单元，被配置为基于包括由检测单元检测到特定层的区域和由获取单元获取的区域的光盘来确定视网膜的视盘。

    Eye portion diagnosis support apparatus, method therefor, program, and recording medium
    50.
    发明授权
    Eye portion diagnosis support apparatus, method therefor, program, and recording medium 有权
    眼部诊断支持装置，方法，程序和记录介质

    公开(公告)号：US08322854B2

    公开(公告)日：2012-12-04

    申请号：US13177877

    申请日：2011-07-07

    申请人： Hiroshi Imamura ,  Akihiro Katayama

    发明人： Hiroshi Imamura ,  Akihiro Katayama

    IPC分类号： A61B3/14

    CPC分类号： A61B3/14 ,  A61B3/102 ,  A61B3/12 ,  A61B3/1225 ,  G06F19/00 ,  G06F19/321 ,  G16H40/63

    摘要： There is provided a technique for efficiently acquiring a tomogram of an eye portion. A diagnosis support apparatus includes a wide-area image acquisition means for acquiring a wide-area image of an eye portion, a detection means for detecting a lesion candidate on the eye portion by analyzing the wide-area image acquired by the wide-area image acquisition means, a determination means for determining a parameter associated with acquisition of a tomogram of the eye portion, based on a lesion candidate detection result obtained by the detection means, and a tomogram acquisition means for acquiring a tomogram of the eye portion based on the parameter determined by the determination means.

    摘要翻译： 提供了一种用于有效地获取眼部的断层图像的技术。 诊断支持装置包括用于获取眼部的广域图像的广域图像获取装置，用于通过分析由广域图像获取的广域图像来检测眼部的病变候选的检测装置 获取装置，确定装置，用于基于由检测装置获得的病变候选检测结果，确定与眼睛部分的断层图像的获取相关联的参数;以及断层图像获取装置，用于基于所述眼睛部分的断层图像获取 参数由确定装置确定。