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    • 83. 发明授权
    • Image quality in error diffusion scheme
    • 图像质量误差扩散方案
    • US06333793B1
    • 2001-12-25
    • US09205723
    • 1998-12-04
    • Koji Kobayashi
    • Koji Kobayashi
    • G06K936
    • H04N1/4052
    • An image processing device converts multi-level-image data into binary-image data by using one of a least average error method and an error diffusion method. The image processing device includes an image-data-correction unit which corrects multi-level-image data of a current pixel by adding thereto an error diffused from surrounding binarized pixels so as to output corrected-image data. The image processing device further includes a binarizing unit which binarizes the corrected-image data by comparing the corrected-image data with a predetermined threshold, an error-calculation unit which calculates an error of the current pixel based on the corrected-image data and a result of the binarization, and an error-correction unit which corrects errors of surrounding pixels when the result of the binarization of the current pixel represents a predetermined one of either a black dot or a white hole.
    • 图像处理装置通过使用最小平均误差法和误差扩散方法之一将多级图像数据转换为二值图像数据。 图像处理装置包括图像数据校正单元,其通过向周围的二值化像素扩散的误差相加来校正当前像素的多级图像数据,以输出校正图像数据。 图像处理装置还包括:二值化单元,其通过将校正图像数据与预定阈值进行比较来校正校正图像数据;误差计算单元,其基于校正图像数据计算当前像素的误差;以及 二值化的结果,以及当当前像素的二值化结果表示黑点或白孔中的预定的一个时,校正周围像素的误差的纠错单元。
    • 84. 发明授权
    • Pattern collation apparatus based on spatial frequency characteristics
    • 基于空间频率特征的模式对照装置
    • US5915034A
    • 1999-06-22
    • US638430
    • 1996-04-26
    • Hiroshi NakajimaKoji KobayashiMasayuki KawamataTakafumi AokiTatsuo Higuchi
    • Hiroshi NakajimaKoji KobayashiMasayuki KawamataTakafumi AokiTatsuo Higuchi
    • G06K9/00G06K9/62G06K9/82
    • G06K9/001
    • In a pattern processing apparatus, a registration data preparation unit performs two-dimensional discrete Fourier transform of image data of a registration pattern to prepare registration Fourier image data. A collation data preparation unit performs two-dimensional discrete Fourier transform of image data of a collation pattern to prepare collation Fourier image data. A data synthesizing unit synthesizes the registration Fourier image data with the collation Fourier image data, both of which consist of phase and amplitude information, to output first synthesized Fourier image data. An image processing unit performs Fourier transform of the first synthesized Fourier image data to output second synthesized Fourier image data representing intensities of correlation components. A pattern collation unit collates the registration pattern with the collation pattern on the basis of the intensities of the correlation components of pixels in a correlation component area set in the second synthesized Fourier image data. An amplitude suppressing processing unit performs amplitude suppressing processing of one of the registration/collation Fourier image data and the first synthesized Fourier image data to extract only the phase information.
    • 在图案处理装置中,登记数据准备部对登记图案的图像数据进行二维离散付里叶变换,以准备登记付里叶图象数据。 核对数据准备单元对核对图案的图像数据进行二维离散付里叶变换,以制作核对付里叶图象数据。 数据合成单元将注册付里叶图像数据与由相位和幅度信息组成的核对付里叶图像数据合成,以输出第一合成付里叶图像数据。 图像处理单元执行第一合成付里叶图像数据的付里叶变换以输出表示相关分量的强度的第二合成付里叶图像数据。 基于第二合成付里叶图像数据中设定的相关分量区域中的像素的相关分量的强度,模式核对单元将注册模式与核对模式进行核对。 幅度抑制处理单元进行登记/核对付里叶图象数据和第一合成付里叶图象数据之一的幅度抑制处理,仅提取相位信息。
    • 85. 发明授权
    • Magnetic recording medium having a specified plasma polymerized hydrogen
containing carbon film and lubricant
    • 具有特定等离子体聚合氢的碳膜和润滑剂的磁记录介质
    • US5677051A
    • 1997-10-14
    • US651902
    • 1996-05-21
    • Kunihiro UedaMasatoshi NakayamaKiyoshi YazuKoji KobayashiHiromichi Kanazawa
    • Kunihiro UedaMasatoshi NakayamaKiyoshi YazuKoji KobayashiHiromichi Kanazawa
    • G11B5/72G11B5/84G11B5/66
    • G11B5/8408G11B5/72Y10S427/106Y10S428/90Y10T428/265Y10T428/30Y10T428/31544Y10T428/31678
    • A magnetic recording medium possessing excellent electromagnetic characteristics, corrosion resistance, durability, abrasion resistance and lubricity, has an undercoat layer, a ferromagnetic metal layer, a protective layer and a lubricating layer formed in this order on a non-magnetic substrate, or has an undercoat layer, a ferromagnetic metal layer, an intercepting layer, a protective layer and a lubricating layer formed in this order on a non-magnetic substrate, wherein the protective layer is a plasma-polymerized hydrogen-containing carbon film having a refractive index of 1.90 or more and a contact angle of less than 80 degrees, the film thickness of the protective layer or the total film thickness of the protective layer and the intercepting layer is 30 to 150 .ANG., the undercoat layer, as well as the intercepting layer, is a film formed of silicon oxide represented by SiOx (x=1.8-1.95), and the lubricating layer is formed of a compound selected from the group consisting of polar perfluoropolyethers, non-polar perfluoropolyethers, perfluorocarboxylic acids, phosphazens, perfluoroalkylates and perfluoroacrylate compounds; and a method for producing the recording medium.
    • 具有优异的电磁特性,耐腐蚀性,耐久性,耐磨性和润滑性的磁记录介质具有在非磁性基板上依次形成的底涂层,强磁性金属层,保护层和润滑层,或具有 底涂层,强磁性金属层,截留层,保护层和润滑层,其依次形成在非磁性基板上,其中保护层是折射率为1.90的等离子体聚合的含氢碳膜 以上,接触角小于80度,保护层的膜厚或保护层和截留层的总膜厚为30〜150安培,底涂层以及截留层为 由SiOx(x = 1.8-1.95)表示的由氧化硅形成的膜,并且润滑层由选自p 全氟聚醚,非极性全氟聚醚,全氟羧酸,磷腈,全氟烷基化物和全氟丙烯酸酯化合物; 以及记录介质的制造方法。
    • 86. 发明授权
    • Ophthalmic examination apparatus for scanning, imaging and observing the
eye
    • 用于扫描,成像和观察眼睛的眼科检查装置
    • US5508760A
    • 1996-04-16
    • US200821
    • 1994-02-23
    • Koji KobayashiHiroki Matsui
    • Koji KobayashiHiroki Matsui
    • A61B3/10A61B3/12A61B3/14G02B6/42
    • A61B3/1225
    • An ophthalmic examination apparatus for scanning, imaging and observing the fundus of the eye comprises an optical system including a first laser source and a laser scanner, a base unit containing a synchronizing circuit for the laser scanner and a video monitor, an image processing unit, and a second laser light source unit detachably connectable to the optical system unit and optically connected with the scanning optical system through an optical fiber. An optional auxiliary optical system unit is provided for attachment to the optical system to observe the anterior chamber as well as the fundus of the eye. An optical device is incorporated to control the direction of light propagation generated by the second laser light source unit. The ophthalmic examination apparatus facilitates a diverse range of user needs, simplifies maintenance and transport and permits the configuration of an economical ophthalmological device to be configured.
    • 用于扫描,成像和观察眼底的眼科检查装置包括:包括第一激光源和激光扫描仪的光学系统,包含用于激光扫描仪的同步电路的基本单元和视频监视器,图像处理单元, 以及第二激光光源单元,其可拆卸地连接到所述光学系统单元并且通过光纤与所述扫描光学系统光学连接。 提供了可选的辅助光学系统单元,用于附接到光学系统以观察前房以及眼睛的眼底。 结合光学装置来控制由第二激光光源单元产生的光传播的方向。 眼科检查装置有助于不同范围的用户需求,简化维护和运输,并且可以配置经济眼科装置的配置。
    • 87. 发明授权
    • Three-dimensional shape measurement system
    • 三维形状测量系统
    • US5353073A
    • 1994-10-04
    • US945672
    • 1992-09-16
    • Koji Kobayashi
    • Koji Kobayashi
    • A61B3/12G01B11/24G01B21/20A61B3/10
    • G01B11/24A61B3/1025
    • A three-dimensional shape measurement system produces three-dimensional information of an object, such as an eye fundus, by directing light onto the object, receiving the light reflected from the object, photoelectrically converting the received light and processing the electric signal. The system includes laser beam control circuitry for focal point shifting in the direction of the optical axis, and a pair of detectors for detecting variation in the focal position of the light reflected from the object and deriving information respecting the shape of the object in the direction of the optical axis. Signal processing circuitry drives the laser beam control circuitry to produce a focused condition and adjusts the output signals of the detectors to a prescribed state.
    • 三维形状测量系统通过将光引导到物体上,接收从物体反射的光,对接收到的光进行光电转换并处理电信号,从而产生诸如眼底的物体的三维信息。 该系统包括用于在光轴方向上进行焦点移动的激光束控制电路和一对检测器,用于检测从对象反射的光的焦点位置的变化,并且导出与方向上的物体的形状相关的信息 的光轴。 信号处理电路驱动激光束控制电路以产生聚焦状态,并将检测器的输出信号调整到规定状态。