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    • 1. 发明授权
    • Method and apparatus for simulating color print
    • 用于模拟彩色打印的方法和装置
    • US5596425A
    • 1997-01-21
    • US393331
    • 1995-02-23
    • Nobuaki UsuiHiroki FujimotoKazutaka TaniguchiAtsushi Imamura
    • Nobuaki UsuiHiroki FujimotoKazutaka TaniguchiAtsushi Imamura
    • G01J3/46G06T15/06G06T19/00H04N1/46H04N1/60G03B3/10
    • H04N1/6086H04N1/603H04N1/6052H04N1/6088
    • There is provided a model where the illuminance of reflected light from the print is expressed with a linear combination of the illuminance of specular reflection light and that of internal reflection light. On the basis of the model, three methods are applicable to compute the colors of a print disposed in the three-dimensional space. In the first method, a specular reflection coefficient and an internal reflection coefficient, which are depending upon the wavelength, are interpolated by an angle of reflection .theta. and an angle of deviation .rho., and the illuminance spectrum of the reflected light is subsequently determined (step S2). Tristimulus values X, Y, and Z are then determined by integration of the illuminance spectrum according to the color matching functions (step S3). In the second method, the tristimulus values are determined for the specular reflection light, the internal reflection light, and the environmental light, respectively, and then interpolated by the reflection angle .theta. and the deviation angle .rho. (step S4). In the third method, the chromaticity coordinates are determined respectively for the specular reflection light, the internal reflection light, and the environmental light, and then interpolated by the reflection angle .theta. and the deviation angle .rho. (step S5).
    • 提供了一种模型,其中来自打印的反射光的照度由镜面反射光的照度和内部反射光的照度的线性组合表示。 在该模型的基础上,三种方法适用于计算设置在三维空间中的打印的颜色。 在第一种方法中,取决于波长的镜面反射系数和内部反射系数被反射角θ和偏离角rho内插,随后确定反射光的照度谱(步骤 S2)。 然后通过根据颜色匹配函数的照度谱的积分来确定三刺激值X,Y和Z(步骤S3)。 在第二种方法中,分别针对镜面反射光,内部反射光和环境光确定三刺激值,然后通过反射角θ和偏离角rho进行内插(步骤S4)。 在第三种方法中,对于镜面反射光,内部反射光和环境光分别确定色度坐标,然后通过反射角θ和偏移角rho内插(步骤S5)。
    • 3. 发明申请
    • WELDING QUALITY CLASSIFICATION APPARATUS
    • 焊接质量分类装置
    • US20130248505A1
    • 2013-09-26
    • US13878917
    • 2011-10-12
    • Kazunori AnayamaToshiyuki SuzumaHitomi NishibataHiroki FujimotoKiyoyuki FukuiMasato Uchihara
    • Kazunori AnayamaToshiyuki SuzumaHitomi NishibataHiroki FujimotoKiyoyuki FukuiMasato Uchihara
    • B23K9/095
    • B23K9/095B23K11/115B23K31/125
    • The welding quality classification apparatus relating to the present invention is an apparatus, wherein a data point indicating feature information of a welded joint to be classified whose welding quality is unknown is mapped to a point in a mapping space which has a dimensional number higher than the number of the features constituting the feature information, and the welding quality of a welded joint to be classified is classified based on which of regions of two welding qualities, which are formed by separating the mapping space with a decision boundary, contains the mapped point, and wherein a discriminant function is determined by adopting a weight which minimizes the sum of the classification error corresponding to classification accuracy of a training dataset and a regularization term having a positive correlation with the dimensional number of the discriminant function as weight for each feature constituting the discriminant function indicating the decision boundary.
    • 关于本发明的焊接质量分类装置是一种装置,其中指示焊接质量未知的待分类的焊接接头的特征信息的数据点被映射到具有高于 基于通过将映射空间与判定边界分离而形成的两个焊接质量的区域中的哪一个包含映射点来分类构成特征信息的特征的数量和待分类的焊接接头的焊接质量, 并且其中通过采用最小化对应于训练数据集的分类精度的分类误差和与判别函数的维数成正相关的正则化项的正则化项的权重作为构成每个特征的每个特征的权重来确定判别函数 判别函数表示决策边界。