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Computation of Smooth Optical Flow in a Feedback Connected Analog Network

By Alan Stocker and Rodney Douglas

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

Topics: Computational Neuroscience, Machine Vision
Publisher: MIT Press, Cambridge
Year: 1998
OAI identifier: oai:cogprints.org:82
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    Citations

    1. (1986). An integrated analog optical motion sensor.
    2. (1990). Analog hardware for detecting discontinuities in early vision.
    3. (1985). Computational vision and regularization theory.
    4. (1988). Computing motion using analog and binary resistive networks.
    5. (1981). Determining optical flow.
    6. (1989). Energy functions for early vision and analog networks.
    7. (1995). Little-known properties of resistive grids that are useful in analog vision chip designs.
    8. (1989). Optical flow: Computational properties and networks, biological and analog. The Computing Neuron,
    9. (1988). Parallel networks for machine vision.
    10. (1997). Silicon retina with adaptive filtering properties.

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