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From Understanding Computation to Understanding Neural Circuitry
(1976-05-01)
The CNS needs to be understood at four nearly independent levels of description: (1) that at which the nature of computation is expressed; (2) that at which the algorithms that implement a computation are characterized; ...
Evidence for a Fifth, Smaller Channel in Early Human Vision
(1979-08-01)
Recent studies in psychophysics and neurophysiology suggest that the human visual system utilizes a range of different size or spatial frequency tuned mechanisms in its processing of visual information. It has been ...
Bandpass Channels, Zero-Crossings, and Early Visual Information Processing
(1978-09-01)
A recent advance by B.F. Logan in the theory of one octave bandpass signals may throw new light on spatial-frequency-tuned channels in early visual information processing.
A Theory of Human Stereo Vision
(1977-11-01)
An algorithm is proposed for solving the stereoscopic matching problem. The algorithm consists of five steps: 1.) Each image is filtered with bar masks of four sizes that vary with eccentricity; the equivalent filters ...
Analysis of a Cooperative Stereo Algorithm
(1977-10-01)
Marr & Poggio (1976) recently described a cooperative algorithm that solves the correspondence problem for stereopsis. This article uses a probabilistic technique to analyze the convergence of that algorithm, and ...
Cooperative Computation of Stereo Disparity
(1976-06-01)
The extraction of stereo disparity information from two images depends upon establishing a correspondence between them. This article analyzes the nature of the correspondence computation, and derives a cooperative algorithm ...