Title :
A CMOS implementation of the R-transform for translation invariant feature extraction
Author :
Spencer, Ronald G. ; Sánchez-Sinencio, Edgar
Author_Institution :
Analog & Mixed-Signal Center, Texas A&M Univ., College Station, TX, USA
Abstract :
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
Keywords :
CMOS integrated circuits; VLSI; feature extraction; image recognition; transforms; CMOS implementation; R-transform; image columns; image rows; spatially distributed analog inputs; translation invariant feature extraction; Cameras; Circuits; Fast Fourier transforms; Feature extraction; Indium phosphide; Large scale integration; Pattern recognition; Transfer functions; Very large scale integration; Voltage;
Conference_Titel :
Circuits and Systems, 1999. 42nd Midwest Symposium on
Conference_Location :
Las Cruces, NM
Print_ISBN :
0-7803-5491-5
DOI :
10.1109/MWSCAS.1999.867327
