An imaging system comprises an image detection unit (52) and a filter unit (58). Pixel image signals are passed in parallel from the image detection unit (52) to the filter unit (58). Circuit elements within each pixel (56) generate pixel image signal whose amplitude is proportional to the logarithm of the image intensity at that pixel. The filt er unit (58) carries out a spatial filtering operation and outputs the result.
申请公布号
CA2239117(C)
申请公布日期
2004.04.27
申请号
CA19952239117
申请日期
1995.12.01
申请人
THE SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S GOVERNMENT OF
发明人
COLLINS, STEPHEN;MARSHALL, GILLIAN FIONA;WADE, MICHAEL