A Caltech Library Service

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

Indiveri, Giacomo and Kramer, Jörg and Koch, Christof (1996) Parallel analog VLSI architectures for computation of heading direction and time-to-contact. In: Advances in Neural Information Processing Systems 8 (NIPS 1995). Advances in Neural Information Processing Systems. No.8. MIT Press , Cambridge, MA, pp. 721-726. ISBN 0-262-20107-0.

[img] PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


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.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Koch, Christof0000-0001-6482-8067
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.
Group:Koch Laboratory (KLAB)
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
European Research Council (ERC)UNSPECIFIED
Series Name:Advances in Neural Information Processing Systems
Issue or Number:8
Record Number:CaltechAUTHORS:20160223-151638158
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:64688
Deposited On:24 Feb 2016 00:19
Last Modified:03 Oct 2019 09:40

Repository Staff Only: item control page