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    • 11. 发明授权
    • Digital pixel addition method and device for processing plurality of images
    • 用于处理多个图像的数字像素加法方法和装置
    • US08818108B2
    • 2014-08-26
    • US13494742
    • 2012-06-12
    • Daisuke SuzukiKoichi Yamashita
    • Daisuke SuzukiKoichi Yamashita
    • G06K9/68
    • G06K9/68H04N5/23232H04N2209/045
    • An image processing device includes an in-plane pattern detector that selects a pixel of interest in a frame image of interest, calculates in-plane correlation index values representing correlations between the pixel of interest and in-plane pixel patterns including the pixel of interest, and selects a most highly correlated pattern as an in-plane addition pattern. A reference pattern detector calculates inter-plane correlation index values representing correlations between the in-plane pixel addition pattern and reference pixel patterns in a reference frame image temporally adjoining the frame of interest, and selects a most highly correlated reference pixel pattern. A pixel adder adds the values of the pixels in the selected in-plane pixel pattern and the selected reference pixel addition pattern to generate a corrected pixel value, thereby achieving high sensitivity and a high signal-to-noise ratio under low illumination, with little loss of resolution.
    • 图像处理装置包括:面内图案检测器,其选择感兴趣的帧图像中的感兴趣像素,计算表示感兴趣像素和包括感兴趣像素的平面内像素图案之间的相关性的面内相关指数值, 并且选择最高度相关的图案作为平面内相加图案。 参考图案检测器计算表示在时间上与感兴趣的帧相邻的参考帧图像中的平面内像素相加图案和参考像素图案之间的相关性的平面间相关指数值,并且选择最高度相关的参考像素图案。 像素加法器将所选择的平面内像素图形和所选择的参考像素相加图案中的像素的值相加,以产生校正像素值,从而在低照度下实现高灵敏度和高信噪比,几乎没有 失去决议。
    • 13. 发明申请
    • IMAGE PROCESSING DEVICE AND METHOD
    • 图像处理装置和方法
    • US20130336596A1
    • 2013-12-19
    • US14002144
    • 2012-01-31
    • Yoshitaka ToyodaDaisuke SuzukiKoichi YamashitaTakashi ItoNarihiro Matoba
    • Yoshitaka ToyodaDaisuke SuzukiKoichi YamashitaTakashi ItoNarihiro Matoba
    • G06T5/20
    • G06T5/20G06T5/002G06T5/008G06T2207/20182H04N5/21
    • For each pixel in an image (Din), a contrast correlation value (CT) is detected for peripheral areas centered around the pixel to be corrected (1), a contrast enhancement coefficient (Ken) is determined in accordance with the contrast correlation value (CT) (2), and in accordance with the enhancement coefficient (Ken), local contrast is enhanced for each pixel and an intermediate image (D3) is generated (3). When performing noise reduction (5) by smoothing the intermediate image (D3) in the time direction, the degree of noise reduction is controlled in accordance with a noise reduction coefficient (Knr) that is large where the enhancement coefficient (Ken) is large. With respect to a low-contrast image such as one captured under fog, haze or other poor weather conditions, the contrast in areas having reduced contrast is appropriately improved, and the noise that is enhanced in conjunction with contrast improvement is reduced, enabling a high quality image to be obtained.
    • 对于图像(Din)中的每个像素,以围绕待校正像素(1)为中心的周边区域检测对比度相关值(CT),根据对比度相关值( CT)(2),并且根据增强系数(Ken),对于每个像素增强局部对比度,并且生成中间图像(D3)(3)。 当通过在时间方向上平滑中间图像(D3)来执行降噪(5)时,根据增强系数(Ken)大的噪声降低系数(Knr)来控制噪声降低的程度。 对于诸如在雾,雾或其他差的天气条件下捕获的低对比度图像,适当地改善了对比度降低的区域中的对比度,并且降低了与对比度改善相结合的噪声,使得能够高 要获得质量图像。
    • 14. 发明授权
    • Imaging device
    • 成像设备
    • US07663668B2
    • 2010-02-16
    • US11547069
    • 2005-01-14
    • Tetsuya KunoHiroaki SugiuraTakashi ItowKoichi YamashitaKatsutoshi Sugiyama
    • Tetsuya KunoHiroaki SugiuraTakashi ItowKoichi YamashitaKatsutoshi Sugiyama
    • H04N5/238H04N9/68H04N3/14
    • H04N5/332H04N9/045
    • An imaging device has color signal generating means (20) for outputting first color signals (R5, G5, B5) corresponding to incident light, and matrix operation means (67) for performing a matrix calculation including multiplication of the first color signals, color signals obtained by raising the first color signals to a power with a first constant (i) as an exponent, color signals obtained by raising the first color signals to a power with a second constant (j) as an exponent, and corresponding matrix coefficients to obtain second color signals (R6, G6, B6). The first and second constants and the matrix coefficients are determined so that the total characteristics of the color signal generating means and the spectral sensitivity characteristic correction means (6) approximate human chromatic curves or spectral sensitivity curves obtained by a linear transformation thereof. Good color reproducibility can be obtained without the use of an infrared cut filter for chromatic correction in the imaging device, and high-sensitivity imaging can be performed under dark conditions.
    • 一种成像装置具有用于输出与入射光相对应的第一颜色信号(R5,G5,B5)的彩色信号发生装置(20)和用于执行矩阵运算的矩阵运算装置(67),该矩阵运算包括第一颜色信号,彩色信号 通过以第一常数(i)作为指数将第一颜色信号提高为功率,通过以第二常数(j)作为指数将第一颜色信号提高为功率而获得的颜色信号和相应的矩阵系数获得 第二颜色信号(R6,G6,B6)。 确定第一和第二常数和矩阵系数,使得颜色信号发生装置和光谱灵敏度特性校正装置(6)的总特性近似通过其线性变换获得的人类色彩曲线或光谱灵敏度曲线。 可以在成像装置中不使用用于色彩校正的红外截止滤光片而获得良好的色彩再现性,并且可以在黑暗条件下执行高灵敏度成像。
    • 18. 发明授权
    • Thermoplastic resin composition having high heat resistance
    • 具有高耐热性的热塑性树脂组合物
    • US5798403A
    • 1998-08-25
    • US836050
    • 1997-05-13
    • Koichi YamashitaHiroshi KobayashiMasahiro Asada
    • Koichi YamashitaHiroshi KobayashiMasahiro Asada
    • C08K3/34C08F279/02C08L25/12C08L51/00C08L51/04C08L55/00C08L55/02C08L73/00C08L77/00
    • C08L77/00C08F279/02C08L25/12C08L51/00C08L51/04
    • This invention provides a heat resistant thermoplastic resin composition comprising (A) 5 to 95 parts by weight of a polyamide resin, (B) 5 to 95 parts by weight of a copolymer containing an unsaturated carboxylic acid, comprising 40 to 80% by weight of an aromatic vinyl compound, 15 to 50% by weight of a vinyl cyanide compound, 0.1 to 20% by weight of an unsaturated carboxylic acid and 0 to 30% by weight of other vinyl compounds copolymerizable therewith, (C) 5 to 50 parts by weight of a graft copolymer, which is obtained by a graft polymerizing 60 to 5% by weight of a vinyl compound in the presence of 40 to 95% by weight of a diene rubber of an average particle size of 0.1 to 2.0 .mu.m, and, (D) 0.1 to 30 parts by weight of a kaolin to 100 parts by weight of the sum (A), (B) and (C). This heat resistant thermoplastic resin composition can provide molded articles which are superior in heat distortion resistance, impact strength and surface appearance, and has a high flowability in its molding.
    • PCT No.PCT / JP95 / 02261 Sec。 371日期1997年5月13日 102(e)日期1997年5月13日PCT提交1995年11月7日PCT公布。 公开号WO96 / 15192 日期:1996年5月23日本发明提供一种耐热性热塑性树脂组合物,其包含(A)5〜95重量份的聚酰胺树脂,(B)5〜95重量份含有不饱和羧酸的共聚物,其含有40〜80 (C)5重量%的芳香族乙烯基化合物,15〜50重量%的乙烯基氰化合物,0.1〜20重量%的不饱和羧酸和0〜30重量%的其它可共聚的乙烯基化合物 至50重量份的接枝共聚物,其通过在40至95重量%的平均粒径为0.1至2.0的二烯橡胶的存在下,通过接枝聚合60至5重量%的乙烯基化合物而获得 (D)0.1〜30重量份的高岭土,相对于(A),(B)和(C)的总和为100重量份。 该耐热性热塑性树脂组合物可以提供耐热变形性,冲击强度和表面外观优异的成型体,并且在其成型中具有高的流动性。