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    • 2. 发明授权
    • Image information processor for producing high-quality output image
    • 用于生产高质量输出图像的图像信息处理器
    • US5649031A
    • 1997-07-15
    • US41411
    • 1993-03-31
    • Toshiaki NakamuraKeisuke NakashimaKouzou NakamuraShinichi ShinodaTatsuki Inuzuka
    • Toshiaki NakamuraKeisuke NakashimaKouzou NakamuraShinichi ShinodaTatsuki Inuzuka
    • G06T5/20G06K9/40
    • G06T5/20
    • An image information processor for producing a high-quality output image by emphasizing the contour portions of a character, a photograph and others and by preventing the generation of a Moire patterns in a dot region, for preventing an increase in the amount of codes, and for making it unnecessary to set desired binarization processing for each original, is provided. The processor includes a unit for scanning the original to convert each pixel data into an electric signal, a unit for controlling the start of image processing, a filter for carrying out enhancement processing among a plurality of pixels arranged in oblique directions after smoothing processing has been carried out among a plurality of contiguous pixels arranged in scanning and traverse directions, and a unit for carrying out at least one of binarization and binarization capable of realizing pseudo tone expression. According to the above construction of the image information processor, a unit for preventing the generation of a Moire pattern in the dot region of an original and for carrying out contour enhancement for the character/photograph region of the original can be formed of simple hardware capable of performing a high-speed operation, a clear binary output is obtained, and an increase in transmission time is prevented.
    • 一种图像信息处理器,用于通过强调字符,照片等的轮廓部分并且通过防止在点区域中产生Moir + E,acu e + EE图案来防止增加而产生高质量的输出图像 提供代码量,并且不需要为每个原稿设置所需的二值化处理。 处理器包括用于扫描原稿以将每个像素数据转换为电信号的单元,用于控制图像处理开始的单元,用于在平滑处理之后在倾斜方向上布置的多个像素之间执行增强处理的滤波器 在扫描方向和横越方向排列的多个连续像素之间执行的单元,以及用于执行能够实现伪色调表达的二值化和二值化中的至少一个的单元。 根据图像信息处理器的上述结构,用于防止在原件的点区域中产生Moir + E,acu e + EE图案并且用于对原稿的字符/照片区域进行轮廓增强的单元 可以由能够执行高速操作的简单硬件形成,可以获得清晰的二进制输出,并且防止传输时间的增加。
    • 3. 发明授权
    • Image signal processing apparatus
    • 图像信号处理装置
    • US5812274A
    • 1998-09-22
    • US656874
    • 1996-05-30
    • Tatsuki InuzukaToshiaki NakamuraShinichi ShinodaYasuyuki Kojima
    • Tatsuki InuzukaToshiaki NakamuraShinichi ShinodaYasuyuki Kojima
    • H04N1/405G06T1/00G06T1/20H04N1/401H04N1/409G02B26/08G03B21/56
    • H04N1/401
    • An image signal processing apparatus to realize signal processing system and apparatus constitution, where an image signal inputted using a photoelectric conversion element such as a CCD or a contact type image sensor is obtained in circuit constitution of small scale with high picture quality. In order to solve the problems, data width of a signal referred to in a shading corrector, an MTF corrector and an error diffusion circuit is made b+f+j.ltoreq.8 per one pixel. Or error component commonly possessed by plural pixels (N pixels) in the error diffusion circuit is made b+f+j'.ltoreq.8, data width per one pixel being made j'=j/N. Image signal processing is realized in this constitution, thereby data width of a signal referred to in respective signal processings is reduced, and an image signal satisfying accuracy of signal processing sufficiently and having high picture quality can be obtained. For example, when a circuit is constituted by LSI, the memory section can be easily mounted on the same LSI. A memory required in the image signal processing can be made 8 bits per one pixel and a cheap memory constitution can be utilized.
    • 一种用于实现信号处理系统和装置结构的图像信号处理装置,其中使用诸如CCD或接触型图像传感器的光电转换元件输入的图像信号以具有高图像质量的小规模电路结构获得。 为了解决这个问题,在一个像素中,b + f + j = 8,在阴影校正器,MTF校正器和误差扩散电路中参考的信号的数据宽度。 或者在误差扩散电路中通常由多个像素(N个像素)拥有的误差分量为b + f + j',8,每个像素的数据宽度为j'= j / N。 在该结构中实现图像信号处理,从而减少了各信号处理中所涉及的信号的数据宽度,并且可以获得满足信号处理精度并且具有高图像质量的图像信号。 例如,当电路由LSI构成时,可以将存储部容易地安装在同一LSI上。 图像信号处理所需的存储器可以使每一像素8位,并且可以利用便宜的存储器结构。
    • 4. 发明授权
    • Image processing apparatus having plural image processors and apparatus which merges data to be input and output to the image processors
    • 具有多个图像处理器的图像处理装置和将要输入和输出到图像处理器的数据合并的装置
    • US06437825B1
    • 2002-08-20
    • US08984110
    • 1997-12-03
    • Tatsuki InuzukaToshiaki NakamuraShinichi ShinodaYasuyuki Kojima
    • Tatsuki InuzukaToshiaki NakamuraShinichi ShinodaYasuyuki Kojima
    • H04N5217
    • H04N1/401
    • An image signal processing apparatus to realize signal processing system and apparatus constitution, where an image signal inputted using a photoelectric conversion element such as a CCD or a contact type image sensor is obtained in circuit constitution of small scale with high picture quality. In order to solve the problems, data width of a signal referred to in a shading corrector, an MTF corrector and an error diffusion circuit is made b+f+j≦8 per one pixel. Or error component commonly possessed by plural pixels (N pixels) in the error diffusion circuit is made b+f+j′≦8, data width per one pixel being made j′=j/N. Image signal processing is realized in this constitution, thereby data width of a signal referred to in respective signal processings is reduced, and an image signal satisfying accuracy of signal processing sufficiently and having high picture quality can be obtained. For example, when a circuit is constituted by LSI, the memory section can be easily mounted on the same LSI. A memory required in the image signal processing can be made 8 bits per one pixel and a cheap memory constitution can be utilized.
    • 一种用于实现信号处理系统和装置结构的图像信号处理装置,其中使用诸如CCD或接触型图像传感器的光电转换元件输入的图像信号以具有高图像质量的小规模电路结构获得。 为了解决这些问题,在每个像素中使b为阴影校正器,MTF校正器和误差扩散电路所参考的信号的数据宽度b + f + j <= 8。 或者在误差扩散电路中通常由多个像素(N个像素)拥有的误差分量为b + f + j'<= 8,每个像素的数据宽度为j'= j / N。 在该结构中实现图像信号处理,从而减少了各信号处理中所涉及的信号的数据宽度,并且可以获得满足信号处理精度并且具有高图像质量的图像信号。 例如,当电路由LSI构成时,可以将存储部容易地安装在同一LSI上。 图像信号处理所需的存储器可以使每一像素8位,并且可以利用便宜的存储器结构。
    • 5. 发明授权
    • Image signal processing apparatus
    • 图像信号处理装置
    • US5555095A
    • 1996-09-10
    • US34388
    • 1993-03-18
    • Tatsuki InuzukaToshiaki NakamuraShinichi ShinodaYasuyuki Kojima
    • Tatsuki InuzukaToshiaki NakamuraShinichi ShinodaYasuyuki Kojima
    • H04N1/405G06T1/00G06T1/20H04N1/401H04N1/409G02B26/08G03B21/56
    • H04N1/401
    • An image signal processing apparatus to realize a signal processing system and apparatus constitution, where an image signal inputted using a photoelectric conversion element, such as a CCD or a contact type image sensor, is obtained in a circuit of small scale with high picture quality. In order to solve various problems, data width of a signal referred to in a shading corrector, an MTF corrector and an error diffusion circuit is made b+f+j.ltoreq.8 per one pixel, the error component commonly possessed by plural pixels (N pixels) in the error diffusion circuit is made b+f+j'.ltoreq.8, the data width per one pixel being j'=j/N. Image signal processing is realized in this constitution, whereby the data width of a signal referred to in respective signal processings is reduced, and an image signal satisfying the accuracy of signal processing sufficiently and having a high picture quality can be obtained. For example, when a circuit is constituted by an LSI, the memory section can be easily mounted on the same LSI. A memory required in the image signal processing can be made 8 bits per one pixel and a cheap memory constitution can be utilized.
    • 一种用于实现信号处理系统和装置结构的图像信号处理装置,其中使用诸如CCD或接触型图像传感器的光电转换元件输入的图像信号在具有高图像质量的小规模电路中获得。 为了解决各种问题,在阴影校正器,MTF校正器和误差扩散电路中参考的信号的数据宽度为每个像素b + f + j = 8,由多个像素共同拥有的误差分量 误差扩散电路中的(N个像素)为b + f + j'= 8,每个像素的数据宽度为j'= j / N。 在该结构中实现了图像信号处理,从而减少了各信号处理中所参考的信号的数据宽度,并且可以获得满足信号处理精度并且具有高图像质量的图像信号。 例如,电路由LSI构成时,能够容易地将存储部安装在同一LSI上。 图像信号处理所需的存储器可以使每一像素8位,并且可以利用便宜的存储器结构。