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Space Efficient 3D Model Indexing
(1992-02-01)
We show that we can optimally represent the set of 2D images produced by the point features of a rigid 3D model as two lines in two high-dimensional spaces. We then decribe a working recognition system in which we ...
Causal Reconstruction
(1993-02-01)
Causal reconstruction is the task of reading a written causal description of a physical behavior, forming an internal model of the described activity, and demonstrating comprehension through question answering. T his ...
Why Do We See Three-dimensional Objects?
(1992-06-01)
When we look at certain line-drawings, we see three-dimensional objects. The question is why; why not just see two-dimensional images? We theorize that we see objects rather than images because the objects we see are, ...
Complexity as a Sclae-Space for the Medial Axis Transform
(1993-01-01)
The medial axis skeleton is a thin line graph that preserves the topology of a region. The skeleton has often been cited as a useful representation for shape description, region interpretation, and object recognition. ...
Recognizing 3D Ojbects of 2D Images: An Error Analysis
(1992-07-01)
Many object recognition systems use a small number of pairings of data and model features to compute the 3D transformation from a model coordinate frame into the sensor coordinate system. With perfect image data, these ...
A Global Approach to Parameter Estimation of Chaotic Dynamical Systems
(1992-12-01)
We present a novel approach to parameter estimation of systems with complicated dynamics, as well as evidence for the existence of a universal power law that enables us to quantify the dependence of global geometry ...
Projective Structure from Two Uncalibrated Images: Structure from Motion and RecRecognition
(1992-09-01)
This paper addresses the problem of recovering relative structure, in the form of an invariant, referred to as projective structure, from two views of a 3D scene. The invariant structure is computed without any prior ...
Estimation of Discontinuous Displacement Vector Fields with the Minimum Description Length Criterion
(1990-10-01)
A new noniterative approach to determine displacement vector fields with discontinuities is described. In order to overcome the limitations of current methods, the problem is regarded as a general modelling problem. ...
Piezoelectric Micromotors for Microrobots
(1991-02-01)
By combining new robot control systems with piezoelectric motors and micromechanics, we propose creating micromechanical systems which are small, cheap and completely autonomous. We have fabricated small - a few ...
A Criterion for the Optimal Design of Multiaxis Force Sensors
(1990-10-01)
This paper deals with the design of multi-axis force (also known as force/torque) sensors, as considered within the framework of optimal design theory. The principal goal of this paper is to identify a mathematical ...