Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published 1996 | Published
Book Section - Chapter Open

Parallel analog VLSI architectures for computation of heading direction and time-to-contact

Abstract

We describe two parallel analog VLSI architectures that integrate optical flow data obtained from arrays of elementary velocity sensors to estimate heading direction and time-to-contact. For heading direction computation, we performed simulations to evaluate the most important qualitative properties of the optical flow field and determine the best functional operators for the implementation of the architecture. For time-to-contact we exploited the divergence theorem to integrate data from all velocity sensors present in the architecture and average out possible errors.

Additional Information

© 1996 Massachusetts Institute of Technology. This work was supported by grants from ONR, ERC and Daimler-Benz AG. The velocity sensor was developed in collaboration with R. Sarpeshkar. The chips were fabricated through the MOSIS VLSI Fabrication Service.

Attached Files

Published - 1125-parallel-analog-vlsi-architectures-for-computation-of-heading-direction-and-time-to-contact.pdf

Files

1125-parallel-analog-vlsi-architectures-for-computation-of-heading-direction-and-time-to-contact.pdf

Additional details

Created:
September 15, 2023
Modified:
January 13, 2024