A CMOS implementation of the R-transform for translation invariant feature extraction
R.G. Spencer, E. Sánchez‐Sinencio · 2003
A CMOS implementation of a one-dimensional R-transform with 32 inputs is presented. The implementation generates a translation invariant feature vector from a set of spatially distributed analog inputs. Repeated application to the rows and columns of an image achieves two-dimensional translation invariance. Results are presented that demonstrate the translation invariance.