发明名称 |
METHOD OF DETERMINING AN ILLUMINATED SURFACE |
摘要 |
Method of determining a surface illuminated by incident light. First the intensity (I1(x,y)) of light reflected from the surface is recorded in a first image of the surface. After this, the intensity (I2(x,y)) of light reflected from the surface is recorded in a second image of the surface, taken at a different angle of illumination. Only the diffusely reflected light is recorded. The difference between the recorded intensities of the first and the second images is determined to obtain a representation that emphasises variations in gradient of the surface. This representation is further processed by signal-adapted integration to a topographic description, that is, a height function of the surface.
|
申请公布号 |
WO0045125(A1) |
申请公布日期 |
2000.08.03 |
申请号 |
WO2000SE00024 |
申请日期 |
2000.01.10 |
申请人 |
STFI;JOHANSSON, PER-AAKE;HANSSON, PETER |
发明人 |
JOHANSSON, PER-AAKE;HANSSON, PETER |
分类号 |
B41F33/14;G01B11/24;G01B11/30;(IPC1-7):G01B11/29 |
主分类号 |
B41F33/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|