Published July 9, 1991
| Published
Book Section - Chapter
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Multiplication-based analog motion detection chip
- Creators
- Moore, Andrew
-
Koch, Christof
- Others:
- Mathur, Bimal P.
- Koch, Christof
Abstract
Novel use of an analog motion detection circuit is presented. The circuit, developed by Tanner and Mead, computes motion by dividing the time derivative of intensity by its spatial derivative; the four-quadrant division is realized with a multiplier within a negative feedback loop. The authors have opened the loop and characterized the circuit as a multiplication-based motion detector, in which the output is the product of the temporal and spatial derivatives of intensity, for various light levels and various moving patterns. An application to the time-to- contact computation is presented.
Additional Information
© 1991 Society of Photo-Optical Instrumentation Engineers (SPIE). We are grateful to John Tanner and John Harris for helpful discussions, to Carver Mead for support and encouragement, to Hewlett-Packard for computing support in the Mead lab, and to DARPA for MOSIS fabrication services. A.M. was supported by fellowships from the Parsons Foundation and the Pew Charitable Trust and by research assistantships from Office of Naval Research, the Joint Tactical Fusion Program, the Center for Research in Parallel Computation, and the Program in Advanced Technologies, which was sponsored by General Motors and TRW. We gratefully acknowledge support from the Hughes Aircraft AT Research Lab and the Rockwell International Science Center for chip efforts in the Koch lab.Attached Files
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Additional details
- Eprint ID
- 91813
- Resolver ID
- CaltechAUTHORS:20181213-143632801
- Hewlett-Packard Company
- Defense Advanced Research Projects Agency (DARPA)
- Ralph M. Parsons Foundation
- Pew Charitable Trust
- Office of Naval Research (ONR)
- Joint Tactical Fusion Office
- Center for Research in Parallel Computation
- General Motors
- TRW
- Hughes Aircraft Artificial Intelligence Center
- Rockwell International Science Center
- Created
-
2018-12-19Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Koch Laboratory (KLAB)
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 1473