WorldCat Identities

Marr, David 1945-1980

Overview
Works: 28 works in 61 publications in 3 languages and 2,465 library holdings
Classifications: QP475, 612.84
Publication Timeline
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Publications about  David Marr Publications about David Marr
Publications by  David Marr Publications by David Marr
posthumous Publications by David Marr, published posthumously.
Most widely held works about David Marr
 
Most widely held works by David Marr
Vision : a computational investigation into the human representation and processing of visual information by David Marr ( Book )
30 editions published between 1982 and 2010 in English and held by 2,251 WorldCat member libraries worldwide
Available again, an influential book that offers a framework for understanding visual perception and considers fundamental questions about the brain and its functions
Theory of edge detection by David Marr ( Book )
1 edition published in 1979 in English and held by 6 WorldCat member libraries worldwide
A theory of edge detection is presented. (1) Intensity changes, which occur in a natural image over a wide range of scales, are detected separately at different scales. At a given scale, this is best done by finding the zero-crossings of gradient-squared G(x, y) * (I(x, y) for image I, where G(x, y) is a two-dimensional gaussian distribution, and gradient-squared is the Laplacian. (2) The physical phenomena that give rise to the intensity changes are localized. This allows one to construct rules for combining information from the different scales into a primitive description of the image. A physiological model for zero-crossing detection is proposed. (Author)
Representation and recognition of the spatial organization of three dimensional shapes by David Marr ( Book )
1 edition published in 1976 in English and held by 6 WorldCat member libraries worldwide
The human visual process can be studied by examining the computational problems associated with deriving useful information from retinal images. In this paper, we apply this approach to the problem of representing three- dimensional shapes for the purpose of recognition. Three criteria, accessibility, scope and uniqueness, and stability and sensitivity, are presented for judging the usefulness of a representation for shape recognition. Three aspects of a representation's design are considered, use an object-centered coordinate system, include volumetric primitives of varied sizes, and have a modular organization. A representation based on a shape's natural axes (for example the axes identified by a stick figure) follows directly from these choices. The basic process for deriving a shape description in this representation must involve: a means for identifying the natural axes of a shape in its image and a mechanism for transforming viewer-centered axis specifications in an object-centered coordinate system. (Author)
The recognition of sharp, closely spaced edges by David Marr ( Book )
1 edition published in 1974 in English and held by 6 WorldCat member libraries worldwide
The recognition of sharp edges from edge- and bar-mask convolutions with an image is studied for the special case where the separation of the edges is of the order of the masks' panel-widths. Desmearing techniques are employed to separate the items in the image. Attention is also given to parsing de-smeared mask convolutions into edges and bars; to detecting edge and bar terminations; and to the detection of small blobs
Early processing of visual information by David Marr ( Book )
1 edition published in 1975 in English and held by 6 WorldCat member libraries worldwide
The article describes a symbolic approach to visual information proessing, and set out four principles that appear to govern the design of comples symbolic information processing systems. A computational theory of early visual information is presented, which extends to about the level of figure-ground separation. It includes a process-oriented theory of texture vision. Most of the theory has been implemented, and examples are shown of the analysis of several natural images. This replaces AIM-324 and AIM 334
A note on the computation of binocular disparity in a symbolic, low-level visual processor by David Marr ( Book )
1 edition published in 1974 in English and held by 5 WorldCat member libraries worldwide
The goals of the computation that extracts disparity from pairs of pictures of a scene are defined, and the constraints imposed upon that computation by the three-dimensional structure of the world are shown to be inadequate. A precise expression of the goals of the computation is possible in a low-level symbolic visual processor: the constraints translate in this environment to pre-requisites on the binding of disparity values to low-level symbols. The outline of a method based on this is given
A life by David Marr ( Book )
1 edition published in 1991 in English and held by 5 WorldCat member libraries worldwide
From understanding computation to understanding neural circuitry by David Marr ( Book )
1 edition published in 1976 in English and held by 5 WorldCat member libraries worldwide
The CNS needs to be understood at four nearly independent levels of description: (1) that at which the nature of a computation is expressed; (2) that at which the algorithms that implement a computation are characterized; (3) that at which an algorithm is committed to particular mechanisms; and (4) that at which the mechanisms are realized in hardware. In general, the nature of a computation is determined by the problem to be solved, the mechanisms that are used depend upon the available hardware, and the particular algorithms chosen depend on the problem and on the available mechanisms. Examples are given of theories at each level. (Author)
The low-level symbolic representation of intensity changes in an image by David Marr ( Book )
1 edition published in 1974 in English and held by 5 WorldCat member libraries worldwide
A family of symbols is defined by which much of the useful information in an image may be represented, and its choice is justified. The family includes symbols for the various commonly occurring intensity profiles that are associated with the edges of objects, and symbols for the gradual luminance changes that provide clues about a surface's shape. It is shown that these descriptors may readily be computed from measurements similar to those made by simple cells in the visual cortex of the cat. (Author)
Spatial disposition of axes in a generalized cylinder representation of objects that do not encompass the viewer by David Marr ( Book )
1 edition published in 1975 in English and held by 5 WorldCat member libraries worldwide
It is proposed that the 3-D representation of an object is represented primarily by a stick-figure configuration, where each stick represents one or more axes in the object's generalized cylinder representation. The loosely hierarchical description of a stick figure is interpreted by a special-purpose processor, able to maintain two vector and the gravitational vertical relative to a Cartesian space-frame. It delivers information about the appearance of these vectors
A theory of human stereo vision by David Marr ( Book )
2 editions published in 1977 in English and held by 4 WorldCat member libraries worldwide
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 are about one octave wide. (2) Zero-crossings of the mask values are localized, and positions that correspond to terminations are found; (3) For each mask size, matching takes place between paris of zero-crossings or terminations of the same sign in the two images, for a range of disparities up to about the width of the mask's central region; (4) Wide masks can control vergence movements, thus causing small masks to come into correspondence; and (5) When a correspondence is achieved, it is written into a dynamic buffer, called the 2-1/2-D sketch. It is shown that this proposal provides a theoretical framework for most existing psychophysical and neurophysiological data about stereopsis. Several critical experimental predictions are also made, for instance about the size of Panum's area under various conditions. The results of such experiments would tell us whether, for example, cooperativity is necessary for the fusion process
Some comments on a recent theory of stereopsis by David Marr ( Book )
1 edition published in 1980 in English and held by 4 WorldCat member libraries worldwide
On the purpose of low-level vision by David Marr ( Book )
1 edition published in 1974 in English and held by 4 WorldCat member libraries worldwide
The article advances the thesis that the purpose of low-level vision is to encode symbolically all of the useful information contained in an intensity array, using a vocabulary of very low-level symbols. Subsequent processes should have access only to this symbolic description. The reason is one of computational expediency. It allows the low-level processes to run almost autonomously; and it greatly simplifies the application of criteria to an image, whose representation in terms of conditions on the initial intensities, or on simple measurements made from them, is very cumbersome
Cooperative computation of stereo disparity by David Marr ( Book )
2 editions published in 1976 in English and held by 4 WorldCat member libraries worldwide
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 that implements it. It is show that this algorithm successfully extracts information from random-dot stereograms, and its implications for the psychophysics and neurophysiology of the visual system are briefly discussed
Analysis of occluding contour by David Marr ( Book )
1 edition published in 1976 in English and held by 3 WorldCat member libraries worldwide
Visión : una investigación basada en el cálculo acerca de la reprentación y el procesamiento humamo de la información visual by David Marr ( Book )
1 edition published in 1985 in Spanish and held by 3 WorldCat member libraries worldwide
An information processing approach to understanding the visual cortex by Francis Crick ( Book )
1 edition published in 1980 in English and held by 3 WorldCat member libraries worldwide
Bijon ( Book )
2 editions published in 1987 in Japanese and held by 3 WorldCat member libraries worldwide
Analyzing natural images : a computational theory of texture vision by David Marr ( Book )
1 edition published in 1975 in English and held by 3 WorldCat member libraries worldwide
A theory of early and intermediate visual information processing is given, which extends to about the level of figure-ground separation. Its core is a computational theory of texture vision. Evidence obtained from perceptual and from computational experiments is adduced in its support. A consequence of the theory is that high-level knowledge about the world influences visual processing later and in a different way from that currently practiced in machine vision
Representation and recognition of the movements of shapes by David Marr ( Book )
1 edition published in 1980 in English and held by 3 WorldCat member libraries worldwide
The problems posed by the representation and recognition of the movements of 3-D shapes are analyzed. A representation is proposed for the movements of shapes that lie within the scope of Marr and Nishihara's (1978) 3-D model representation of static shapes. The basic problem is, how to segment a stream of movement into pieces each of which can be described separately. The representation proposed here is based upon segmenting a movement at moments when a component axis, e.g. an arm, starts to move relative to its local coordinate frame (here, the torso). So that for example walking is divided into a sequence of the stationary states between each swing of the arms and legs, and the actual motions between the stationary points (relative to the torso, not the ground). This representation is called the state-motion-state (SMS) moving shape representation, and several examples of its application are given. (Author)
 
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Alternative Names
Marr, David C., 1945-1980
Marr, David Courtnay
マー, デビッド
Languages
English (50)
Japanese (2)
Spanish (1)
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