A methodology to obtain an invariant pattern recognition process when the input images are defocused is presented. Our method combines a multi-channel decomposition of the input scene and a usual correlation process to obtain several information channels. The information of the channels can be analyzed channel by channel or by means of a combination of them. In all the cases, the Discrimination Capability criterion is calculated and we see that the multichannel procedure is more stable against defocus than the mono-channel one. © 2001 SPIE · 0277-786X/01/$15.00.
|Journal||Proceedings of SPIE-The International Society for Optical Engineering|
|Publication status||Published - 1 Jan 2001|
- Image processing
- Multi-channel decomposition
- Pattern recognition