Now showing items 882-901 of 1217

    • RamboNodes for the Metropolitan Ad Hoc Network 

      Beal, Jacob; Gilbert, Seth (2003-12-17)
      We present an algorithm to store data robustly in a large, geographically distributed network by means of localized regions of data storage that move in response to changing conditions. For example, data might migrate away ...
    • Range Segmentation Using Visibility Constraints 

      Taycher, Leonid; Darrell, Trevor (2001-09-01)
      Visibility constraints can aid the segmentation of foreground objects observed with multiple range images. In our approach, points are defined as foreground if they can be determined to occlude some {em empty space} in the ...
    • A Real Time Garbage Collector Based on the Lifetimes of Objects 

      Lieberman, Henry; Hewitt, Carl (1981-10-01)
      In previous heap storage systems, the cost of creating objects and garbage collection is independent of the lifetime of the object. Since objects with short lifetimes account for a large portion of storage use, it's ...
    • Real-Time Part Position Sensing 

      Gordon, Steven J.; Seering, Warren P. (1988-05-01)
      A light stripe vision system is used to measure the location of polyhedral features of parts from a single frame of video camera output. Issues such as accuracy in locating the line segments of intersection in the image ...
    • Reasoning Utility Package User's Manual, Version One 

      McAllester, David Allen (1982-04-01)
      RUP (Reasoning Utility Package) is a collection of procedures for performing various computations relevant to automated reasoning. RUP contains a truth maintenance system (TMS) which can be used to perform simple ...
    • REC/8: A CONVERT Compiler of REC for the PDP-8 

      McIntosh, Harold V. (1968-01-01)
      REC/8 is a CONVERT program, realized in the CTSS LISP of Project MAC, for compiling RED expressions into the machine language of the PDP-8 computer. Since the compilation consists in its majority of subroutines calls (to ...
    • Recent Improvements in DDT 

      Edwards, D.J.; Minsky, M.L. (1963-11-01)
      This paper will report new developments and recent improvements to DDT. "Window DDT" now will remember undefined symbols and define them on a later command. Using sequence breaks, it can change the contents of memory while ...
    • Reciprocal Interactions Between Motion and Form Perception 

      Sinha, Pawan (1995-04-21)
      The processes underlying the perceptual analysis of visual form are believed to have minimal interaction with those subserving the perception of visual motion (Livingstone and Hubel, 1987; Victor and Conte, 1990). ...
    • Recognition and Localization of Overlapping Parts from Sparse Data 

      Grimson, W. Eric L.; Lozano-Perez, Tomas (1985-06-01)
      This paper discusses how sparse local measurements of positions and surface normals may be used to identify and locate overlapping objects. The objects are modeled as polyhedra (or polygons) having up to six degreed ...
    • Recognition and Structure from One 2D Model View: Observations on Prototypes, Object Classes and Symmetries 

      Poggio, Tomaso; Vetter, Thomas (1992-02-01)
      In this note we discuss how recognition can be achieved from a single 2D model view exploiting prior knowledge of an object's structure (e.g. symmetry). We prove that for any bilaterally symmetric 3D object one non- ...
    • Recognition by Linear Combinations of Models 

      Ullman, Shimon; Basri, Ronen (1989-08-01)
      Visual object recognition requires the matching of an image with a set of models stored in memory. In this paper we propose an approach to recognition in which a 3-D object is represented by the linear combination of 2-D ...
    • Recognition by Prototypes 

      Basri, Ronen (1992-12-01)
      A scheme for recognizing 3D objects from single 2D images is introduced. The scheme proceeds in two stages. In the first stage, the categorization stage, the image is compared to prototype objects. For each prototype, ...
    • The Recognition of Sharp, Closely Spaced Edges 

      Marr, David (1974-12-01)
      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 ...
    • Recognition of Surface Reflectance Properties from a Single Image under Unknown Real-World Illumination 

      Dror, Ron O.; Edward H. Adelson,; Willsky, Alan S. (2001-10-21)
      This paper describes a machine vision system that classifies reflectance properties of surfaces such as metal, plastic, or paper, under unknown real-world illumination. We demonstrate performance of our algorithm for ...
    • Recognition of Topological Invariants by Modular Arrays 

      Beyer, Terry (1968-09-01)
      In this paper we study recognition of topological invariant properties of patterns by use of finite, rectangular 2-dimensional, interactive arrays of finite state automata (hereafter called modular arrays). The use of ...
    • Recognizing 3D Object Using Photometric Invariant 

      Nagao, Kenji; Grimson, Eric (1995-04-22)
      In this paper we describe a new efficient algorithm for recognizing 3D objects by combining photometric and geometric invariants. Some photometric properties are derived, that are invariant to the changes of illumination ...
    • Recognizing 3D Ojbects of 2D Images: An Error Analysis 

      Grimson, W. Eric; Huttenlocher, Daniel P.; Alter, T. D. (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 ...
    • Recognizing Indoor Scenes 

      Torralba, Antonio; Sinha, Pawan (2001-07-25)
      We propose a scheme for indoor place identification based on the recognition of global scene views. Scene views are encoded using a holistic representation that provides low-resolution spatial and spectral information. The ...
    • Recognizing Rigid Objects by Aligning Them with an Image 

      Huttenlocher, Daniel P.; Ullman, Shimon (1987-01-01)
      This paper presents an approach to recognition where an object is first {\\it aligned} with an image using a small number of pairs of model and image features, and then the aligned model is compared directly against ...
    • Recognizing Three-Dimensional Objects without the Use of Models 

      Marill, Thomas (1989-09-01)
      We present an approach to the problem of recognizing three-dimensional objects from line-drawings. In this approach there are no models. The system needs only to be given a single picture of an object; it can then ...