---
abstract: 'In 1986, Tanner and Mead \cite{Tanner_Mead86} implemented an interesting constraint satisfaction circuit for global motion sensing in aVLSI. We report here a new and improved aVLSI implementation that provides smooth optical flow as well as global motion in a two dimensional visual field. The computation of optical flow is an ill-posed problem, which expresses itself as the aperture problem. However, the optical flow can be estimated by the use of regularization methods, in which additional constraints are introduced in terms of a global energy functional that must be minimized. We show how the algorithmic constraints of Horn and Schunck \cite{Horn_Schunck81} on computing smooth optical flow can be mapped onto the physical constraints of an equivalent electronic network.'
altloc:
  - ftp://ftp.ini.unizh.ch/pub/alan/nips98.ps.gz
chapter: ~
commentary: ~
commref: ~
confdates: december
conference: Advances in Neural Information Processing Systems 11
confloc: 'denver, co'
contact_email: ~
creators_id: []
creators_name:
  - family: Stocker
    given: Alan
    honourific: ''
    lineage: ''
  - family: Douglas
    given: Rodney
    honourific: ''
    lineage: ''
date: 1998
date_type: published
datestamp: 1999-04-26
department: ~
dir: disk0/00/00/00/82
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eprint_status: archive
eprintid: 82
fileinfo: /style/images/fileicons/application_postscript.png;/82/1/nips98.ps|/style/images/fileicons/application_pdf.png;/82/5/nips98.pdf
full_text_status: public
importid: ~
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isbn: ~
ispublished: inpress
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item_issues_count: 0
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item_issues_reported_by: []
item_issues_resolved_by: []
item_issues_status: []
item_issues_timestamp: []
item_issues_type: []
keywords: 'energy minimzation, optical flow, intensity constraint, aVLSI, neuromorphic, vision sensor, motion detection, constraint solving, analog network, real-time, collective computatio'
lastmod: 2011-03-11 08:53:39
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longitude: ~
metadata_visibility: show
note: ~
number: ~
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pubdom: FALSE
publication: ~
publisher: 'MIT Press, Cambridge'
refereed: FALSE
referencetext: ~
relation_type: []
relation_uri: []
reportno: ~
rev_number: 14
series: ~
source: ~
status_changed: 2007-09-12 16:22:48
subjects:
  - comp-neuro-sci
  - comp-sci-mach-vis
succeeds: ~
suggestions: ~
sword_depositor: ~
sword_slug: ~
thesistype: ~
title: Computation of Smooth Optical Flow in a Feedback Connected Analog Network
type: confpaper
userid: 179
volume: ~
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