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    • 33. 发明授权
    • Image encoding apparatus
    • 图像编码装置
    • US06798542B1
    • 2004-09-28
    • US09515891
    • 2000-02-29
    • Shunichi KimuraYutaka KoshiKoichiro Shinohara
    • Shunichi KimuraYutaka KoshiKoichiro Shinohara
    • G06K1500
    • H04N1/32144
    • Input gray-scale bit map information is inputted to an image forming position extracting unit for extracting image forming position information. An input computer-formed image is inputted to an image forming position extracting unit for generating an image forming position. At an image forming position overlapping unit, two image forming positions are overlapped with each other, and the composed image forming position is sent to a pixel value calculating unit and an image forming position determining unit. The image value calculating unit measures a width of the composed image forming position and converts the measured value into a pixel value. The image forming position determining unit calculates a barycenter of the composed image forming position. The pixel value and the barycenter are sent as image information. Encoding without distortion can be executed by enhancing the precision of the barycenter.
    • 输入灰度位图信息被输入到用于提取图像形成位置信息的图像形成位置提取单元。 输入计算机形成的图像被输入到用于产生图像形成位置的图像形成位置提取单元。 在图像形成位置重叠单元处,两个图像形成位置彼此重叠,并且将合成图像形成位置发送到像素值计算单元和图像形成位置确定单元。 图像值计算单元测量合成图像形成位置的宽度,并将测量值转换为像素值。 图像形成位置确定单元计算合成图像形成位置的重心。 像素值和重心作为图像信息发送。 可以通过提高重心的精度来执行无失真的编码。
    • 34. 发明授权
    • Image forming device
    • 图像形成装置
    • US06628419B1
    • 2003-09-30
    • US09515655
    • 2000-02-29
    • Ikken SoShunichi Kimura
    • Ikken SoShunichi Kimura
    • G06F1500
    • H04N1/40
    • In a tandem-type full color printer, to print monochromatic image data the resolution of which is high and the processing load of which is high at high speed and at a low cost, the operation of each component is required as follows. If a monochromatic image is printed, MB images acquired by dividing the monochromatic image by an image processor are sequentially sent to the respective image compressors for YMCK. Four image compressors are operated in parallel and the compressed data of MB images is stored in an image storage. After the data of all MB images required for an output image is stored, an MB image controller operates the respective image decompressors for YMCK in parallel and sends the stored data to the image decompressors. The decompressed MB images are coupled to one image data in an image coupler and are sent to a print unit. The MB image controller enhances process speed for carrying paper in the print unit based upon a situation in which MB images are decoded by amount in which the processing speed of a monochromatic image is enhanced.
    • 在串联型全彩色打印机中,为了打印分辨率高并且其处理负载高速和低成本的单色图像数据,需要如下操作每个组件。 如果打印单色图像,则通过图像处理器将单色图像分割而获得的MB图像被顺序地发送到用于YMCK的各个图像压缩器。 四个图像压缩器并行操作,MB图像的压缩数据存储在图像存储器中。 在存储输出图像所需的所有MB图像的数据之后,MB图像控制器并行地操作YMCK的各个图像解压缩器,并将存储的数据发送到图像解压缩器。 解压缩的MB图像被耦合到图像耦合器中的一个图像数据,并被发送到打印单元。 MB图像控制器基于通过增加单色图像的处理速度的量来解码MB图像的情况,提高了在打印单元中传送纸张的处理速度。
    • 35. 发明授权
    • Image information encoding device
    • 图像信息编码装置
    • US6078689A
    • 2000-06-20
    • US80145
    • 1998-05-18
    • Setsu KunitakeShunichi Kimura
    • Setsu KunitakeShunichi Kimura
    • H04N19/60G06T9/00H04N1/41H04N19/126H04N19/134H04N19/174H04N19/196H04N19/423H04N19/625H04N19/86G06K9/36
    • G06T9/007
    • An image information encoding device is provided, wherein an image analyzer calculates image analysis information on divided image information; an image analysis information holder temporarily stores the image analysis information therein; a weighting part performs a predetermined weighting process on each of the image analysis information and peripheral image analysis information temporarily stored in the image analysis information holder and outputs resultant information therefrom as final image analysis information; a coding parameter determination unit determines a coding parameter from the image analysis information and image output characteristic information; and an image information encoding unit encodes the divide image information, based on the coding parameter. Owing to the above construction, image-quality control utilizing the input image analysis information, coded characteristic information and image output device characteristic information can be performed even in a small-scale device configuration.
    • 提供一种图像信息编码装置,其中图像分析器计算关于划分的图像信息的图像分析信息; 图像分析信息保持器暂时存储图像分析信息; 加权部分对临时存储在图像分析信息保持器中的每个图像分析信息和周边图像分析信息执行预定加权处理,并将其作为最终图像分析信息输出; 编码参数确定单元根据图像分析信息和图像输出特性信息确定编码参数; 并且图像信息编码单元基于编码参数对分割图像信息进行编码。 由于上述结构,即使在小规模的设备配置中也可以执行利用输入图像分析信息,编码特征信息和图像输出设备特征信息的图像质量控制。
    • 37. 发明授权
    • Markov model image encoding device and method
    • 马尔可夫模型图像编码装置及方法
    • US5987182A
    • 1999-11-16
    • US876484
    • 1997-06-16
    • Shunichi KimuraSetsu KunitakeTaro YokoseYutaka KoshiKoh Kamizawa
    • Shunichi KimuraSetsu KunitakeTaro YokoseYutaka KoshiKoh Kamizawa
    • H04N19/50G06T9/00H03M7/40H04N1/41H04N1/417H04N19/102H04N19/13H04N19/167H04N19/196H04N19/423H04N19/91G06K9/36
    • G06T9/00
    • A plurality of reference pixel extracting means check their corresponding reference pixel ranges and pixel values in predetermined auxiliary regions. Reference pixel range selecting means selects a reference pixel range based on the checked pixel values. When the number of types of pixel values for an input image is found to be locally low in the selected reference pixel range, the number of reference pixels is increased. On the other hand, when the number of types of the pixel values for the input image is found to be locally large, the number of reference pixels is decreased. As a result, states can be generated by a Markov model image encoding system capable of improving encoding efficiency without increasing the number of the states sharply. Owing to the above construction, even when the number of tones for the input image is high upon Markov model image encoding, the number of reference pixels can be increased without abruptly increasing the number of states later on to improve compression efficiency.
    • 多个参考像素提取装置在预定的辅助区域中检查其对应的参考像素范围和像素值。 参考像素范围选择装置基于所检查的像素值来选择参考像素范围。 当在所选择的参考像素范围中发现输入图像的像素值的数量在本地较低时,参考像素的数量增加。 另一方面,当发现输入图像的像素值的类型的数量局部地大时,参考像素的数量减少。 结果,可以通过能够提高编码效率的马尔可夫模型图像编码系统来生成状态,而不会急剧增加状态数。 由于上述结构,即使在马尔科夫模型图像编码时输入图像的色调数量高的情况下,也可以增加参考像素的数量而不会稍后突然增加状态数来提高压缩效率。
    • 38. 发明授权
    • Apparatus for image coding and decoding based on color components in an
image signal
    • 基于图像信号中的颜色分量的图像编码和解码装置
    • US5383037A
    • 1995-01-17
    • US970393
    • 1992-11-02
    • Shunichi KimuraKoh Kamizawa
    • Shunichi KimuraKoh Kamizawa
    • H04N1/41G06T9/00H04N1/64H04N11/04H04N1/415H04N1/46
    • H04N1/642H04N1/64
    • An image coding apparatus includes a color component. converter 2 for converting an input image signal 1 into predetermined color spaces which have been subdivided into independent color components, a segmenting circuit 4 for subdividing the converted image signals into predetermined image regions for the respective color components, a color information selecting circuit 9 for judging a condition of the color component of the input image based upon the components of the input image for each image region, and also a coding device 5 for performing a coding process with respect to the respective color components. In the color information selecting circuit 9, a judgement is made whether or not there is color information by comparing the pixel component of the pixel within the input image block with a predetermined threshold value. When it is judged that the input image block corresponds to the monochromatic information, the color difference component is not transferred or not stored. Only when it is judged that the input image block corresponds to the color information, the color difference component is transferred, or stored.
    • 图像编码装置包括彩色分量。 转换器2,用于将输入图像信号1转换成已经被分成独立颜色分量的预定颜色空间;分割电路4,用于将转换的图像信号细分成用于各个颜色分量的预定图像区域;颜色信息选择电路9,用于判断 基于每个图像区域的输入图像的分量的输入图像的颜色分量的条件,以及用于对各个颜色分量执行编码处理的编码装置5。 在颜色信息选择电路9中,通过将输入图像块内的像素的像素分量与预定阈值进行比较来判断是否存在颜色信息。 当判断输入图像块对应于单色信息时,色差分量不被传送或不被存储。 只有当判定输入图像块对应于颜色信息时,才会传送或存储色差分量。