公开(公告)号：WO2003067420A1

公开(公告)日：2003-08-14

申请号：PCT/SE2003/000072

申请日：2003-01-17

Applicant: STFI ,  LINDSTRAND, Mikael

Inventor： LINDSTRAND, Mikael

IPC: G06F3/033

CPC classification number: G01N21/57 ,  G01J3/504 ,  G01N21/255

Abstract: A method of modeling and interactively visualizing the appearance of a surface. A directed radiance model of an irradiated surface is provided, where energy is distributed as a function of spectral wavelength. The surface is divided in a plurality of part-surfaces (XI, YI), and spectrally resolved directed radiance values of each part-surface in an interval of enforced inclinations (ZI) of a simulated or real sample holder are determined for providing spectral and angular resolution. Sets of directed radiance values among the determined spectrally resolved directed radiance values, that simulate certain viewing angles of the irradiated surface are selected and visually presented as images of the irradiated surface by a graphic computer interface. The images in the graphic computer interface are dynamically and interactively manipulated to thereby simulate manipulation of the irradiated physical surface.

Abstract translation: 一种建模和交互式可视化表面外观的方法。 提供了辐射表面的定向辐射模型，其中能量作为光谱波长的函数被分布。 表面被划分成多个部分表面（XI，YI），并且确定模拟或实际样品保持器的强制倾斜（ZI）的间隔中的每个部分表面的光谱分辨的定向辐射值，以提供光谱和 角度分辨率。 通过图形计算机界面选择模拟被照射表面的某些视角的确定的光谱分辨的定向辐射度值中的定向辐射值集合，并且以视觉方式呈现为照射表面的图像。 图形计算机界面中的图像被动态地和交互地操纵，从而模拟照射的物理表面的操纵。

公开(公告)号：EP1012576A1

公开(公告)日：2000-06-28

申请号：EP97906357.5

申请日：1997-01-29

Applicant: STFI

Inventor： JOHANSSON, Per- ke ,  LINDSTRAND, Mikael

IPC: G01N21/57

CPC classification number: G01N21/57

Abstract: A method and apparatus for obtaining a basis on which the gloss quality of a sample surface of a sample, such as a paper sheet, can be determined by illuminating the sample surface and registering the intensity of the reflected light. With the intention of enabling several different types of gloss variation investigations to be made on a sample surface essentially in accordance with known principles of gloss facet approximation, it is proposed, among other things, that the sample surface (80) is exposed in an image registering area (44) by controlled rotary movement of the sample surface through the image registering area or by controlled rotary movement of the image registering area over the sample surface, wherein the intensity of the light reflected from a plurality of spatially well defined part-surfaces of the sample surface is registered several times during this rotary movement while, at the same time, determining the positions of the part-surfaces in the image registering area (44), and in turn the viewing angle, so as to establish what we here define as an image volume which is representative of the registered light intensity as a function of the position of the part-surfaces within the sample surface and of the respective viewing angle.

Abstract translation: 一种用于获得如下基础的方法和设备：通过照射样本表面并记录反射光的强度，可以确定样本（例如纸张）的样本表面的光泽度质量。 为了基本上根据光泽小平面近似的已知原理在样本表面上进行几种不同类型的光泽变化研究，除其他之外，提出了样本表面（80）暴露在图像中 通过所述样本表面的受控旋转运动通过所述图像配准区域或通过所述图像配准区域在所述样本表面上的受控旋转运动来记录区域（44），其中从多个空间明确限定的部分表面 在该旋转运动期间多次登记样本表面的位置，同时确定图像配准区域（44）中的部分表面的位置并进而确定视角，以便确定我们在此处 根据样品表面内部分表面的位置定义为表示配准光强度的图像体积，o f各视角。