WorldCat Identities

Ullman, Shimon

Overview
Works: 61 works in 150 publications in 1 language and 2,391 library holdings
Genres: Conference proceedings 
Roles: Editor
Classifications: QP475, 152.14
Publication Timeline
Key
Publications about  Shimon Ullman Publications about Shimon Ullman
Publications by  Shimon Ullman Publications by Shimon Ullman
Most widely held works by Shimon Ullman
High-level vision object recognition and visual cognition by Shimon Ullman ( )
23 editions published between 1995 and 2000 in English and held by 1,354 WorldCat member libraries worldwide
The interpretation of visual motion by Shimon Ullman ( Book )
20 editions published between 1977 and 1985 in English and held by 639 WorldCat member libraries worldwide
Proceedings of the 12th IAPR International Conference on Pattern Recognition October 9-13, 1994, Jerusalem, Israel by International Conference on Pattern Recognition ( )
3 editions published in 1994 in English and held by 156 WorldCat member libraries worldwide
Image understanding : 1985-86 ( Book )
4 editions published between 1986 and 1987 in English and held by 49 WorldCat member libraries worldwide
Image understanding : 1989 ( Book )
3 editions published between 1984 and 1990 in English and held by 30 WorldCat member libraries worldwide
Proceedings of the 12th IAPR International Conference on Pattern Recognition October 9-13, 1994, Jerusalem, Israel by 1994, Yerushalayim) International Conference on Pattern Recognition (12 ( Book )
1 edition published in 1994 in English and held by 8 WorldCat member libraries worldwide
Visual routines by Shimon Ullman ( Book )
9 editions published between 1980 and 1984 in English and Undetermined and held by 8 WorldCat member libraries worldwide
Computational studies in the interpretation of structure and motion : summary and extension by Shimon Ullman ( Book )
3 editions published in 1983 in English and held by 7 WorldCat member libraries worldwide
Computational studies of the interpretation of structure from notion examine the conditions under which three-dimensional structure can be recovered from motion in the image. The first part of this paper summarizes the main results obtained to date in these studies. The second part examines two issues: the robustness of the 3-D interpretation of perspective velocity fields, and the 3-D information contained in orthographic velocity fields. The two are related because, under local analysis, limitations on the interpretation of orthographic velocity fields also apply to perspective projection. The following results are established: When the interpretation is applied locally, the 3-D interpretation of the perspective velocity field is unstable; The orthographic velocity field determines the structure of the inducing object exactly up to a depth-scaling; For planar objects, the orthographic velocity field always admits two distinct solutions up to depth-scaling; and The 3-D structure is determined uniquely by a view and a half of the orthographic velocity field. (Author)
On visual detection of light sources by Shimon Ullman ( Book )
4 editions published in 1975 in English and Undetermined and held by 6 WorldCat member libraries worldwide
The paper addresses the following problem: Given an array of light intensities obtained from some scene, find the light sources in the original scene. The following factors are discussed from the point of view of their relevance to light sources detection: The highest intensity in the scene, absolute intensity value, local and global contrast, comparison with the average intensity, and lightness computation. They are shown to be insufficient for explaining humans' ability to identify light sources in their visual field. Finally, a method for accomplishing the source detection task in the mondrian world is presented
Image understanding 1989 ( Book )
3 editions published in 1990 in English and held by 6 WorldCat member libraries worldwide
Image understanding 1985-1986 ( Book )
1 edition published in 1987 in English and held by 6 WorldCat member libraries worldwide
Proceedings of the 12th IAPR International Conference on Pattern Recognition. October 9-13, 1994, Jerusalem, Israel by IEEE Computer Society ( Book )
1 edition published in 1994 in English and held by 6 WorldCat member libraries worldwide
Image understanding 1984 ( Book )
4 editions published between 1984 and 1985 in English and held by 6 WorldCat member libraries worldwide
Proceedings of the 12th IAPR International Conference on Pattern Recognition October 9-13, 1994, Jerusalem, Israel by IEEE Computer Society ( Book )
1 edition published in 1994 in English and held by 6 WorldCat member libraries worldwide
A model-driven geometry theorem prover by Shimon Ullman ( Book )
2 editions published in 1975 in English and held by 6 WorldCat member libraries worldwide
This paper describes a new Geometry Theorem Prover, which was implemented to illuminate some issues related to the use of models in theorem proving. The paper is divided into three parts: Part 1 describes the G.T.P. and presents the ideas embedded in it. Part 2 describes the backward search mechanism. Part 3 addresses the notion of similarity in a problem, defines a notion of semantic symmetry, and compares it to Gelernter's concept of syntactic symmetry
The computational study of vision by Ellen Catherine Hildreth ( Book )
4 editions published in 1988 in English and Undetermined and held by 5 WorldCat member libraries worldwide
Through vision, we derive a rich understanding of what is in the world, where objects are located, and how they are changing with time. Because we obtain this understanding immediately, effortlessly, and without conscious introspection, we can be deceived into thinking that vision should therefore be a fairly simple task to perform. The computational approach to the study of vision inquires directly into the sort of information processing needed to extract important information from the changing visual image - information such as the three-dimensional (3-D) structure and movement of objects in the scene, or the color and texture of object surfaces. An important contribution that computational studies have made is to show how difficult vision is to perform, and how complex are the processes needed to perform visual tasks successfully. This article reviews some computational studies of vision, focusing on edge detection, binocular stereo, motion analysis, intermediate vision and object recognition. Keywords: Computer vision; Vision; Binocular stereo vision; Motion analysis; Object recognition; Pattern recognition. (KT)
A model for the spatio-temporal organization of X- and Y- type ganglion cells in the primate retina by J Richter ( Book )
2 editions published between 1980 and 1981 in English and held by 5 WorldCat member libraries worldwide
Filling-in the gaps : the shape of subjective contours and a model for their generation by Shimon Ullman ( Book )
3 editions published in 1976 in English and Undetermined and held by 5 WorldCat member libraries worldwide
The properties of isotropy, smoothness, minimum curvature and locality suggest the shape of filled-in contours between two boundary edges. The contours are composed of the arcs of two circles tangent to the given edges, meeting smoothly, and minimizing the total curvature. It is shown that shapes meeting all the above requirements can be generated by a network which performs simple, local computations. It is suggested that the filling-in process plays an important role in the early processing of visual information. (Author)
Recognizing solid objects by alignment with an image by Daniel P Huttenlocher ( Book )
2 editions published in 1989 in English and held by 5 WorldCat member libraries worldwide
Abstract: "In this paper we consider the problem of recognizing solid objects from a single two-dimensional image of a three-dimensional scene. We develop a new method for computing a transformation from a three-dimensional model coordinate frame to the two-dimensional image coordinate frame, using three pairs of model and image points. We show that this transformation always exists for three non-colinear points, and is unique up to a reflective ambiguity. The solution method is closed-form and only involves second order equations
The measurement of visual motion by Ellen Catherine Hildreth ( Book )
3 editions published in 1982 in English and held by 4 WorldCat member libraries worldwide
 
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Alternative Names
Ul'man, S.
Ульман, Ш.
Languages
English (90)
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