发明名称 |
Image test target for visual determination of digital image resolution |
摘要 |
Resolution of an image capture system is measured by imaging a test target having a progression of feature sizes and pitch in respective sub-fields thereof. The image captured by the imaging system is then inspected to determine a sub-field image which does not include aliasing in the form of a Moire' pattern. Inclusion of reference numerals corresponding to the sub-field image feature size and pitch allows direct reading of the resolution of the imaging system. Such a system enables fast and accurate determination of the resolution and alignment of an imaging system using an inexpensively produced test target together with an arbitrary image viewing program.
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申请公布号 |
US2005275724(A1) |
申请公布日期 |
2005.12.15 |
申请号 |
US20050196242 |
申请日期 |
2005.08.04 |
申请人 |
ALBERTELLI LAWRENCE E |
发明人 |
ALBERTELLI LAWRENCE E. |
分类号 |
G01C21/02;H04N1/00;(IPC1-7):G01C21/02 |
主分类号 |
G01C21/02 |
代理机构 |
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地址 |
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