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    • 62. 发明授权
    • Image processing method and apparatus
    • 图像处理方法和装置
    • US06674544B2
    • 2004-01-06
    • US08873032
    • 1997-06-11
    • Kazuo ShiotaToru MatamaHiroshi Yamaguchi
    • Kazuo ShiotaToru MatamaHiroshi Yamaguchi
    • G06K1500
    • H04N1/4092
    • This improved image processing method comprises the steps of selecting a low-pass filter having a mask size corresponding to the pixel density of an image to be reproduced from a plurality of types of low-pass filters; creating unsharp image signals representing an unsharp image of the photographic image from digital image signals using the selected low-pass filter; obtaining difference signals by carrying out subtraction between signals relating to pixels which correspond to the digital image signals and the unsharp image signals; and obtaining processed image signals for reproducing visible signals by subjecting the difference signals to predetermined image processing. According to the improved image processing method and the improved image processing apparatus embodying the method, an image having good image quality can be recorded in such a manner that image information which has been photoelectrically read out is subjected to image processing and the dodging is carried out to the image information output for recording. Thus, a properly finished print, in which the dodging effect is sufficiently exhibited and the image having good image quality is reproduced, can be stably obtained.
    • 该改进的图像处理方法包括以下步骤:从多种类型的低通滤波器中选择具有与要再现的图像的像素密度相对应的掩模尺寸的低通滤波器; 使用所选择的低通滤波器从数字图像信号产生表示摄影图像的不清晰图像的清晰图像信号; 通过对与数字图像信号和不清晰图像信号相对应的像素相关的信号进行减法来获得差分信号; 并且通过对差分信号进行预定的图像处理来获得用于再现可见信号的处理图像信号。 根据改进的图像处理方法和体现该方法的改进的图像处理装置,可以以已经光电读出的图像信息进行图像处理并进行躲避的方式记录具有良好图像质量的图像 输出到用于记录的图像信息。 因此,可以稳定地获得其中充分发挥闪避效果并且再现具有良好图像质量的图像的正确完成的打印。
    • 66. 发明授权
    • Video printer for making video image hard copies
    • 用于制作视频图像硬拷贝的视频打印机
    • US4965662A
    • 1990-10-23
    • US225975
    • 1988-07-29
    • Kazuo Shiota
    • Kazuo Shiota
    • G03B27/72H04N1/387H04N1/393
    • H04N1/3935G03B27/725H04N1/3875G03B2227/005
    • A video signal from an input unit is supplied to first and second low-pass filters. A selector picks up a video signal which has passed through the first low-pass filter if a single frame image is to be printed, and picks up a video signal which has passed through the second low-pass filter if a multifreeze image is to be printed. The picked-up video signal is sampled and quantized by an A/D converter and stored in a first memory. The video signal in the first memory is read out to print a signal frame image. To print a multifreeze image, the video signal stored in the first memory is thinned to reduce the size of an image and thereafter is stored in a second memory having a larger capacity than that of the first memory. A plurality of frames are inlaid within one frame at the second memory. Thereafter, the video signal in the second memory is read out to print a multifreeze image.
    • 来自输入单元的视频信号被提供给第一和第二低通滤波器。 如果要打印单帧图像,则选择器拾取已经通过第一低通滤波器的视频信号,并且如果多幅图像将被拾取已经通过第二低通滤波器的视频信号 印刷。 拾取的视频信号由A / D转换器采样和量化,并存储在第一存储器中。 读出第一存储器中的视频信号以打印信号帧图像。 为了打印多张图像,存储在第一存储器中的视频信号被减薄以减​​小图像的尺寸,并且此后存储在具有比第一存储器的容量更大的容量的第二存储器中。 多个帧在第二存储器内嵌入一帧内。 此后,读出第二存储器中的视频信号以打印多幅图像。
    • 67. 发明授权
    • Apparatus for recording image exactly corresponding to one displayed on
video monitor
    • 用于记录与视频监视器上显示的图像完全相对应的图像的装置
    • US4794460A
    • 1988-12-27
    • US54875
    • 1987-05-27
    • Kazuo Shiota
    • Kazuo Shiota
    • H04N1/407H04N1/46H04N1/60H04N5/84H04N9/79
    • H04N1/6052H04N1/407H04N1/4078
    • An image recording apparatus includes an image processor for achieving an image processing on an input video signal, a recorder for recording on a photosensitive material an image represented by the video signal processed by the image processor, a display for displaying an image represented by the video signal processed by the image processor, a storage for storing a first image processing parameter determined according to a sensitivity characteristic of the photosensitive material and a second image processing parameter determined according to a display characteristic of the display, an input device for entering an instruction, and a controller responsive to the input device for controlling the image processor, the recorder, the display, and the storage. The controller sets values of the second image processing parameter in the image processor to cause the display to display an image, and also sets in the image processor values of the first image processing parameter related with a predetermined relationship to the second image processing parameter set in the image processor, thereby causing the recorder to conduct a recording operation on the photosensitive material.
    • 图像记录装置包括用于对输入视频信号进行图像处理的图像处理器,用于在感光材料上记录由图像处理器处理的视频信号表示的图像的记录器,用于显示由视频表示的图像的显示器 由图像处理器处理的信号,用于存储根据感光材料的灵敏度特性确定的第一图像处理参数的存储器和根据显示器的显示特性确定的第二图像处理参数,用于输入指令的输入装置, 以及响应于输入设备的控制器来控制图像处理器,记录器,显示器和存储器的控制器。 控制器设置图像处理器中的第二图像处理参数的值,以使显示器显示图像,并且还将与第二图像处理参数相关的第一图像处理参数的图像处理参数设置为与第 图像处理器,从而使记录器对感光材料进行记录操作。
    • 68. 发明授权
    • Calibration method for color film inspection system
    • 彩色胶片检查系统的校准方法
    • US4736245A
    • 1988-04-05
    • US63223
    • 1987-06-18
    • Yasuhiro SetoKazuo Shiota
    • Yasuhiro SetoKazuo Shiota
    • H04N1/407H04N1/60H04N1/46
    • H04N1/60H04N1/4078H04N1/6027
    • The conventional color film inspection system does not consider calibration of an image input unit at all. It therefore cannot maintain precision at a sufficiently high level against shifts caused by gains or offset fluctuation. This invention system can prevent deterioration in inspection precision against gain drift or offset drift as it is adapted to calibrate the input unit. Further, as this invention system can obtain in advance the correspondence between images displayed in the color film inspection system with images actually printed, the original images on a negative film, if once inspected optimally, can always be printed optimally.
    • 传统的彩色胶片检查系统根本不考虑图像输入单元的校准。 因此,不能将精度保持在足够高的水平,防止由增益或偏移波动引起的偏移。 本发明系统可以防止检测精度降低,因为其适于校准输入单元,增益漂移或偏移漂移。 此外,由于本发明系统可以预先获得在彩色胶片检查系统中显示的图像与实际打印的图像之间的对应关系,如果一次被最佳检查,则可以总是最佳地打印负片上的原始图像。
    • 70. 发明授权
    • Color detecting device for color printer
    • 彩色打印机颜色检测装置
    • US4244655A
    • 1981-01-13
    • US908452
    • 1978-05-22
    • Eiichi AsaiKazuo ShiotaKoji TakahashiTaizo Akimoto
    • Eiichi AsaiKazuo ShiotaKoji TakahashiTaizo Akimoto
    • G03B27/73G01J3/46G03B27/78
    • G03B27/73
    • A particular color is defined in terms of red, green and blue densities thereof. When the densities fall within a predetermined ellipsoid in a three-dimensional chromaticity coordinate system the axes of which respectively represent the red, green and blue densities, the color is defined to be of the particular color. The ellipsoid is represented by the following formula.dS.sup.2 =C.sub.11 dB.sup.2 +2C.sub.12 dB.multidot.dG+C.sub.22 dG.sup.2 +2C.sub.23 dG.multidot.dR+C.sub.33 dR.sup.2 +2C.sub.31 dR.multidot.dBwhereindB=B-BdG=G-GdR=R-RB: blue density of measured pointG: green density of measured pointR: red density of measured pointB: average blue densityG: average green densityR: average red densityRed, green and blue densities of a number of points on a color negative to be printed are measured by a measuring means. The outputs of the measuring means are normalized by a normalizing circuit so that equal level of density signals can be obtained regardless of the gamma value and the sensitivity of the negatives when the same subject matter is photographed under the same conditions. The normalized densities are put into said formula and dS.sup.2 for each of the measured points is calculated by a computing circuit. The calculated dS.sup.2 is compared with a predetermined constant K by a comparator. When the calculated dS.sup.2 is not larger than the constant K, the measured point is determined to be of the particular color.
    • 根据其红,绿和蓝密度来定义特定的颜色。 当三维色度坐标系中的密度落在预定的椭圆体内时,它们的轴分别表示红色,绿色和蓝色密度,颜色被定义为特定的颜色。 椭球由下式表示。 dS2 = C11dB2 + 2C12dBxdG + C22dG2 + 2C23dGxdR + C33dR2 + 2C31dRxdB其中dB = BB dG = GG dR = RR B:测量点的蓝色密度G:测量点的绿色密度R:测量点的红色密度B:平均蓝色密度G :平均绿色密度R:平均红色浓度通过测量装置测量待印刷的彩色负片上的多个点的红色,绿色和蓝色密度。 测量装置的输出通过归一化电路进行归一化,使得当在相同条件下拍摄相同的主题时,无论伽马值和底片的灵敏度如何,都可以获得等密度的信号。 将归一化密度置于所述公式中,并且通过计算电路计算每个测量点的dS2。 将计算出的dS2与比较器的预定常数K进行比较。 当计算出的dS2不大于常数K时,测量点被确定为特定颜色。