发明名称 |
APPARATUS FOR AND METHOD OF INSPECTING SURFACE TOPOGRAPHY OF A MOVING OBJECT |
摘要 |
A dynamic photometric stereo inspection technique usable to capture and analyse the topography of a moving surface. The technique includes an enhanced data capture method and apparatus comprising a spaced array of at least two coplanar illuminates to improve measurement range and accuracy. The apparatus can be used to inspect banknotes, e.g. to assist with fitness assessment and/or forgery detection. The method may comprise automatically assessing surface topography data to provide qualitative and quantitative information about 2D and 3D features, such as changes in reflectivity, colour, glossiness, 3D texture and the surface profile of the surface under inspection. |
申请公布号 |
CA2951190(A1) |
申请公布日期 |
2015.12.10 |
申请号 |
CA20152951190 |
申请日期 |
2015.06.05 |
申请人 |
UNIVERSITY OF THE WEST OF ENGLAND, BRISTOL;THE GOVERNOR AND COMPANY OF THE BANK OF ENGLAND |
发明人 |
SMITH, MELVYN;SMITH, LYNDON;FAROOQ, ABDUL;FINNEGAN, DAVID JESSE;CROOK, IAN |
分类号 |
G01N21/88;G01N21/89;G07D7/12 |
主分类号 |
G01N21/88 |
代理机构 |
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