Browsing AI Technical Reports (1964 - 2004) by Title
Now showing items 253-272 of 327
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Safe Distributed Coordination of Heterogeneous Robots through Dynamic Simple Temporal Networks
(2003-05-30)Research on autonomous intelligent systems has focused on how robots can robustly carry out missions in uncertain and harsh environments with very little or no human intervention. Robotic execution languages such as RAPs, ... -
Segmentation and Alignment of Speech and Sketching in a Design Environment
(2003-02-01)Sketches are commonly used in the early stages of design. Our previous system allows users to sketch mechanical systems that the computer interprets. However, some parts of the mechanical system might be too hard or too ... -
Segmentation of Brain Tissue from Magnetic Resonance Images
(1995-01-01)Segmentation of medical imagery is a challenging problem due to the complexity of the images, as well as to the absence of models of the anatomy that fully capture the possible deformations in each structure. Brain ... -
Series Elastic Actuators
(1995-09-07)This thesis presents the design, construction, control and evaluation of a novel force controlled actuator. Traditional force controlled actuators are designed from the premise that "Stiffer is better''. This approach ... -
Shape from Contour
(1980-11-01)The problem of using image contours to infer the shapes and orientations of surfaces is treated as a problem of statistical estimation. The basis for solving this problem lies in an understanding of the geometry of ... -
Shape from Shading: A Method for Obtaining the Shape of a Smooth Opaque Object from One View
(1970-11-01)A method will be described for finding the shape of a smooth apaque object form a monocular image, given a knowledge of the surface photometry, the position of the lightsource and certain auxiliary information to ... -
Shaping Inputs to Reduce Vibration in Flexible Space Structures
(1992-06-01)Future NASA plans to launch large space strucutres solicit the need for effective vibration control schemes which can solve the unique problems associated with unwanted residual vibration in flexible spacecraft. In ... -
A Simple Model of Circuit Design
(1980-05-01)A simple analog circuit designer has been implemented as a rule based system. The system can design voltage followers. Miller integrators, and bootstrap ramp generators from functional descriptions of what these ... -
SIR: A Computer Program for Semantic Information Retrieval
(1964-06-01)SIR is a computer system, programmed in the LISP language, which accepts information and answers questions expressed in a restricted form of English. This system demonstrates what can reasonably be called an ability ... -
Site Controller: A System for Computer-Aided Civil Engineering and Construction
(1993-02-01)A revolution\0\0\0 in earthmoving, a $100 billion industry, can be achieved with three components: the GPS location system, sensors and computers in bulldozers, and SITE CONTROLLER, a central computer system that ... -
SketchIT: A Sketch Interpretation Tool for Conceptual Mechanical Design
(1996-03-13)We describe a program called SketchIT capable of producing multiple families of designs from a single sketch. The program is given a rough sketch (drawn using line segments for part faces and icons for springs and ... -
SodaBot: A Software Agent Environment and Construction System
(1994-11-02)This thesis presents SodaBot, a general-purpose software agent user-environment and construction system. Its primary component is the basic software agent --- a computational framework for building agents which is ... -
Some Aspects of Pattern Recognition by Computer
(1967-02-01)A computer may gather a lot of information from its environment in an optical or graphical manner. A scene, as seen for instance from a TV camera or a picture, can be transformed into a symbolic description of points ... -
Sparsely Faceted Arrays: A Mechanism Supporting Parallel Allocation, Communication, and Garbage Collection
(2002-06-01)Conventional parallel computer architectures do not provide support for non-uniformly distributed objects. In this thesis, I introduce sparsely faceted arrays (SFAs), a new low-level mechanism for naming regions of memory, ... -
Specialization of Perceptual Processes
(1995-04-22)In this report, I discuss the use of vision to support concrete, everyday activity. I will argue that a variety of interesting tasks can be solved using simple and inexpensive vision systems. I will provide a number ... -
A Statistical Image-Based Shape Model for Visual Hull Reconstruction and 3D Structure Inference
(2003-05-22)We present a statistical image-based shape + structure model for Bayesian visual hull reconstruction and 3D structure inference. The 3D shape of a class of objects is represented by sets of contours from silhouette ... -
Statistical Object Recognition
(1993-01-01)Two formulations of model-based object recognition are described. MAP Model Matching evaluates joint hypotheses of match and pose, while Posterior Marginal Pose Estimation evaluates the pose only. Local search in pose ... -
Stereo-Based Head Pose Tracking Using Iterative Closest Point and Normal Flow Constraint
(2003-05-01)In this text, we present two stereo-based head tracking techniques along with a fast 3D model acquisition system. The first tracking technique is a robust implementation of stereo-based head tracking designed for ... -
Structural Dynamics Model of a Cartesian Robot
(1985-10-01)Methods are developed for predicting vibration response characteristics of systems which change configuration during operation. A cartesian robot, an example of such a position-dependent system, served as a test case ... -
Structure and Interpretation of Computer Programs
(1983-07-01)"The Structure and Interpretation of Computer Programs" is the entry-level subject in Computer Science at the Massachusetts Institute of Technology. It is required of all students at MIT who major in Electrical ...
