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    • 37. 发明授权
    • Method of reducing noise in images
    • 降低图像噪声的方法
    • US07415163B2
    • 2008-08-19
    • US10996229
    • 2004-11-23
    • Noriyuki NishiHisakazu KuramotoTakuma SuzukiMinoru Yamamoto
    • Noriyuki NishiHisakazu KuramotoTakuma SuzukiMinoru Yamamoto
    • G06K9/40H04N1/32H04N1/00H04N1/41H04N1/413
    • H04N19/117H04N19/176H04N19/186H04N19/527H04N19/60
    • An image noise reducing method that can properly reduce both block noise and mosquito noise without deterioration of the image quality is provided. The method includes creating a first luminance component image data with the boundaries of the blocks thereof smoothened, creating a second luminance component image data with its entirety smoothened from the first luminance component image data, creating edge image data by subtracting the second luminance component image data from the first luminance component image data, creating corrected edge image data by applying correction to the edge image data under given conditions, and creating third luminance component image data by adding the corrected edge image data to the second luminance component image data. For color-difference component image data, first color-difference component image data with its entirety smoothened is created from the color-difference component image data. The third luminance component image data and the first color-difference component image data are finally outputted.
    • 提供了可以适当地降低块噪声和蚊式噪声而不降低图像质量的图像噪声降低方法。 该方法包括:创建其平滑块的边界的第一亮度分量图像数据,创建从第一亮度分量图像数据整体整合的第二亮度分量图像数据,通过减去第二亮度分量图像数据来产生边缘图像数据 从第一亮度分量图像数据,通过在给定条件下对边缘图像数据应用校正来创建校正的边缘图像数据,并且通过将校正的边缘图像数据与第二亮度分量图像数据相加来创建第三亮度分量图像数据。 对于色差分量图像数据,从色差分量图像数据创建整体平滑化的第一色差分量图像数据。 最后输出第三亮度分量图像数据和第一色差分量图像数据。
    • 40. 发明授权
    • Grating forming method and manufacturing method for master member for manufacturing molding die
    • 用于制造成型模具的主元件的光栅形成方法和制造方法
    • US07257877B2
    • 2007-08-21
    • US10876912
    • 2004-06-25
    • Masashi HanaokaKenichi HayashiMinoru Yamamoto
    • Masashi HanaokaKenichi HayashiMinoru Yamamoto
    • B23P13/04G02B6/34
    • G02B1/11G02B5/1852Y10T29/49995
    • A grating forming method for forming a fine grating with a grating period of at most 1 μm on a surface of a blank material including (1) feeding realatively a diamond cutting tool and the blank material in a groove extended direction while rotating the diamond cutting tool about the axial line and (2) cutting the surface of the blank material with a blade tip part of the diamond cutting tool to form the grooves while rotating and feeding the diamond cutting tool. When the fine grating with the grating period of “P” μm is formed and the feed amount per revolution of the diamond cutting tool is set to be “S” μm, the feed amount per revolution “S”, with which the diamond cutting tool is fed in the groove extended direction while rotating the diamond cutting tool about the axial line, is set to satisfy the following conditional expression: S
    • 一种光栅形成方法,用于在坯料的表面上形成光栅周期至多为1um的精细光栅,包括(1)在使金刚石切割工具旋转的同时实际上进给金刚石切削工具和坯料,沿着槽延伸方向 围绕轴线和(2)用金刚石切割工具的刀片尖部切割坯料的表面,以在旋转和馈送金刚石切割工具的同时形成凹槽。 当形成光栅周期为“P”mum的精细光栅时,金刚石切削刀具的每转进给量设定为“S”mum,每转“S”的进给量,金刚石刀具 在金刚石切削工具绕轴线旋转的同时沿槽延伸方向进给,设定为满足以下条件表达式:S <2.9P 3。 这种条件是将表达式应用于坯料,成型模具,模制产品和用于制造成型模具的主构件。