Navigation for an intelligent mobile robot - all 6 versions »
J Crowley - Robotics and Automation, IEEE Journal of [legacy, pre-1988], 1985 - ieeexplore.ieee.org
This work describes a system for autonomous navigation by an intelligent mobile
robot in a known domain. This system is based on maintaining a description of
the external environment of the robot using a focused rotating ultrasonic ...
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World modeling and position estimation for a mobile robot usingultrasonic ranging - all 3 versions »
JL Crowley - Robotics and Automation, 1989. Proceedings., 1989 IEEE …, 1989 - ieeexplore.ieee.org
Page 1 CI-12750-8/89/0000/0674$O1 .00 © 1989 IEEE 674 World Modeling and
Position Estimation for a Mobile Robot Using Ultrasonic Ranging James L. Crowley
LIFIA (IMAG) - INPG 46 Ave Felix Viallet Grenoble, France.  This paper ...
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Recognition without Correspondence using Multidimensional Receptive Field Histograms - all 17 versions »
B Schiele, JL Crowley - International Journal of Computer Vision, 2000 - Springer
... JAMES L. CROWLEY GRAVIR, INRIA Rhone–Alpes, 655, Avenue de l’Europe, 38300
Monbonnot, France james.crowley@imag.fr Abstract. The appearance of an object
is composed of local structure. ... Page 2. 32 Schiele and Crowley ...
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Context is key - all 4 versions »
J Coutaz, JL Crowley, S Dobson, D Garlan - Communications of the ACM, 2005 - portal.acm.org
Since the early 1960s, the notion of context has been modeled and exploited in
many areas of informatics. The scientific community has debated definitions and
uses for many years without reaching clear consensus [4]. Nonetheless, it ...
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Object recognition using multidimensional receptive field histograms - all 17 versions »
B Schiele, JL Crowley - Fourth European Conference on Computer Vision, Cambridge, UK, 1996 - venus.inrialpes.fr
Swain and Ballard [10] have developed a technique which identies objects in an
image by matching a color histogram from a region of the image with a color
histogram from a sample of the object. Their technique has been shown to be ...
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Multi-modal tracking of faces for video communications - all 13 versions »
JL Crowley, F Berard - IEEE Conference on Computer Vision and Pattern Recognition, … - doi.ieeecs.org
This paper describes a system which uses multiple visual processes to
detect and track faces for video compression and transmission. The system is
based on an architecture in which a supervisor selects and activates visual ...
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A comparison of position estimation techniques using occupancy grids - all 19 versions »
B Schiele, JL Crowley, G LIFIA-IMAG - Robotics and Automation, 1994. Proceedings., 1994 IEEE …, 1994 - ieeexplore.ieee.org
Page 1 A Comparison of Position Estimation Techniques 1050-4729194 $03.00 ©
1994 IEEE 1628 Using Occupancy Grids Bernt Schiele and James L. Crowley LIFIA
(IMAG) - INP Grenoble 46 Avenue Felix Viallet 38031 Grenoble Cedex FRANCE ...
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A Representation for Shape Based on Peaks and Ridges in the Difference of Low-pass Transform - all 6 versions »
JL Crowley, AC Parker - IEEE TRANS. PATTERN ANAL. MACH. INTELLIG., 1984 - ri.cmu.edu
Motivations for a multiple resolution representation are presented first,
followed by the definition of the DOLP Transform. Techniques are then presented
for encoding a symbolic structural description of forms from the DOLP ...
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Comprehensive colour image normalization - all 17 versions »
GD Finlayson, B Schiele, JL Crowley - Proceedings of the 5th European Conference on Computer …, 1998 - Springer
Abstract. The same scene viewed under two different illuminants in- duces two
different colour images. If the two illuminants are the same colour but are
placed at different positions then corresponding rgb pixels are related by ...
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Position estimation for a mobile robot using vision and odometry
F Chenavier, JL Crowley - Robotics and Automation, 1992. Proceedings., 1992 IEEE …, 1992 - ieeexplore.ieee.org
Page 1 0-8186.2720-4/92 $3.00 I992 IEEE 2588 Proceedinga of the 1992 IEEE
nan,aoix,al Confeiencc an Robotica and Automation Nice, France - May 1992
Position Estimation for a Mobile Robot Using Vision and Odometry Frédéric ...
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Robust face tracking using color - all 12 versions »
K Schwerdt, JL Crowley - the 4th IEEE International Conference on Automatic Face and …, 2000 - doi.ieeecs.org
In this paper we discuss a new robust tracking technique applied to histograms
of intensity normalized color. This technique supports a video codec based on
orthonormal basis coding. Orthonormal basis coding can be very effi- cient ...
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Perceptual user interfaces: things that see - all 6 versions »
JL Crowley, J Coutaz, F Bérard - Communications of the ACM, 2000 - portal.acm.org
This convergence may lead to the widespread introduction of things and
environments that see. However, reaping the benefits of ubiquitous perception
will require consideration of human abilities and social needs as an ...
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Perceptual Components for Context Aware Computing - all 16 versions »
JL Crowley, J Coutaz, G Rey, P Reignier - Proceedings of Ubicomp, 2002 - Springer
Abstract. In this paper we propose a software architecture for observing and
modeling human activity. This architecture is derived from an ontology for
context awareness. We propose a model in which a user’s context is ...
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Probabilistic Object Recognition Using Multidimensional Receptive Field Histograms - all 7 versions »
B Schiele, JL Crowley, IMAG-GRAVIR - Proceedings of ICPR - doi.ieeecs.org
This paper describes a probabilistic object recognition technique which does not
require correspondence matching of images. This technique is an extension of our
earlier work on object recognition using matching of multi-dimensional ...
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Vision as process
JL Crowley, HI Christensen - 1995 - Springer
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Finger tracking as an input device for augmented reality - all 8 versions »
J Crowley, F Berard, J Coutaz - Proc. Int’l Workshop on Automatic Face and Gesture … - hcvl.hci.iastate.edu
... Conception et réalisation.”. Dunod Informatique, 1994. [Cro 94] JL Crowleyand
H. Christensen, Vision as Process, Springer Verlag Basic Reserch Series, Heidelberg,
1994. [Har 92] C. Harris. “Tracking with Rigid Models”. ...
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Measurement and integration of 3-D structures by tracking edge lines - all 6 versions »
JL Crowley, P Stelmaszyk, T Skordas, P Puget - International Journal of Computer Vision, 1992 - Springer
... Measurement and Integration of 3-D Structures by Tracking Edge Lines JAMES
L. CROWLEY LIFIA (IMAG), L NP Grenoble, 46 Ave Flix Viallet, 38031 Grenoble,
France ... Page 2. 30 Crowley, Stelmaszyk, Skordas, and Puget ...
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Position estimation using principal components of range data - all 8 versions »
JL Crowley, F Wallner, B Schiele, MSM INRIA - Robotics and Automation, 1998. Proceedings. 1998 IEEE …, 1998 - ieeexplore.ieee.org
Page 1 O-7803-4300-x-5198 $10.00 © 1998 IEEE 3121 Proceedings of the 1998 IEEE
International Conference on Robotics & Automation Leuven, Belgium May 1998
Position Estimation Using Principal Components of Range Data James L. ...
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Estimating face orientation from robust detection of salient facial structures
N Gourier, D Hall, JL Crowley - FG Net Workshop on Visual …, 2004 - homepages.inf.ed.ac.uk
We have found that a single cluster is sufficient to provide a detector for salient facial structures
that is robust to faceorientation, illumination and identity.
We show use of this detection to estimate facial orientation.
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Principles and techniques for sensor data fusion. - all 8 versions »
JL Crowley, Y Demazeau - Signal Processing, 1993 - venus.inrialpes.fr
Page 1. Principles and Techniques for Sensor Data Fusion James L Crowley
and Yves Demazeau LIFIA (IMAG) 46 avenue Félix Viallet F-38031 Grenoble
Cédex, FRANCE Abstract This paper concerns a problem ...
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Fast computation of the difference of low-pass transform. - all 6 versions »
JL Crowley, RM Stern - IEEE TRANS. PATTERN ANAL. MACH. INTELLIG., 1984 - ri.cmu.edu
This paper defines the Difference of Low-Pass (DOLP) transform and describes a
fast algorithm for its computation. The DOLP is a reversible transform which
converts an image into a set of band-pass images. A DOLP transform is shown ...
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Integration and control of reactive visual processes - all 11 versions »
JL Crowley, JM Bedrune, M Bekker, M Schneider - 1993 - www-prima.inrialpes.fr
... of the IJCAI, 1991. [10] A. Chehikian and JL Crowley, "Fast Computation of Optimal
Semi-Octave Pyramids", 7th SCIA, Aalborg, August 1991. [11] Robot Learning, Edited
by J. Connell and S. Mahadevan, Kluwer Academic Publishers, Boston, 1993. ...
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A Representation for Visual Information - all 7 versions »
JL Crowley - 1982 - stinet.dtic.mil
Abstract : This dissertation presents a new technique for representing digital
pictures. The principal benefit of this representation is that it greatly
simplifies the problem of finding the correspondence between components in ...
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Measuring Image Flow By Tracking Edge-lines
JL Crowley, P Stelmaszyk, C Discours - Computer Vision., 1988. Second International Conference on, 1988 - ieeexplore.ieee.org
Page 1 CH2664-1/88/0000/0658$O1.0O © 1988 IEEE 658 Measuring Image Flow by
Tracking Edge-Lines James L. Crowley (LIFIA) Patrick Stelmaszyk (1TMI)
Christophe Discours (LIFIA and ITMI) ABSTRACT LIFIA (INPG) 46 Ave Felix ...
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Comparison of correlation techniques - all 3 versions »
J Martin, JL Crowley - Intelligent Autonomous Systems, 1995 - www-prima.inrialpes.fr
Abstract. This paper presents a theoretical and experimental comparison of
different forms of SSD and normalised cross-correlation of image neighborhoods.
Signal detection theory is used as a framework for analysis of correlation ...
Cited by 71 - Related Articles - View as HTML - Web Search

Visual recognition using local appearance - all 8 versions »
VC de Verdiere, JL Crowley - 5th European Conference on Computer Vision,(ECCV 1998), 1998 - Springer
Abstract. This paper presents a technique for visual recognition in which
physical objects are represented by families of surfaces in a local appearance
space. An orthogonal family of local appearance descriptors is obtained by ...
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Mathematical foundations of navigation and perception for an autonomous mobile robot - all 10 versions »
JL Crowley - Reasoning with Uncertainty in Robotics, 1995 - www-prima.inrialpes.fr
... Navigation and Perception For an Autonomous Mobile Robot James L. Crowley Professeur,
INP Grenoble INRIA Rhône Alpes 655 Ave de l'Europe 38330 Montbonnot St. Martin France ...
December 4-6, 1995. © James L. Crowley November 1995. Page 2. ...
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Active hand tracking - all 7 versions »
J Martin, V Devin, JL Crowley - Face and Gesture Recognition, 1998 - doi.ieeecs.org
This paper describes a system which uses multiplevisual processes to detect and
track hands for gesture–recognition and human–computer interaction. This
system is based on an architecture in which a supervisor selects and ...
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Vision for man-machine interaction - all 15 versions »
JL Crowley - Robotics and Autonomous Systems, 1997 - pernilleravn.dk
Abstract Computer vision provides a powerful tool for the interaction between
man and machine. The barrier between physical objects (paper,
pencilscalculators) and their electronic counterparts limits both the ...
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Coordination of action and perception in a surveillance robot. - all 2 versions »
JL Crowley - IEEE Expert, 1987 - dli.iiit.ac.in
This paper describes a technique for coordinating action and perception within a
mobile surveillance robot. The surveillance robot employs an architecture
composed of twin hierarchies for navigation and perception controlled by a ...
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An Appearance-Based Approach to Gesture-Recognition - all 3 versions »
J Martin, JL Crowley - Proceedings of the 9th International Conference on Image …, 1997 - portal.acm.org
... Authors, Jerome Martin, James L. Crowley, Publisher, Springer-Verlag London, UK. ...
Collaborative Colleagues: James L. Crowley: William Astier. François Bérard. Jean
Marc Bedrune. Morten Bekker. Francois Berard. Philippe Bobet. Gaelle Calvary. ...
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Dynamic world modeling for an intelligent mobile robot using a rotating ultra-sonic ranging device - all 5 versions »
J Crowley - Robotics and Automation. Proceedings. 1985 IEEE …, 1985 - ieeexplore.ieee.org
... The world modeling and navigation procedures for the IMP ... dynamic model of the surfaces
and obstacles in the ... The Composite Local Model plays two fundamental ...
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Multiple resolution representation and probabilistic matching of 2-D gray-scale shape - all 10 versions »
JL Crowley, AC Sanderson - IEEE Transactions on Pattern Analysis and Machine …, 1987 - osti.gov
One approach to pattern classification is to match a structural description of a
pattern to models which describe the structural properties of pattern classes.^
The central problem in structural pattern matching is to determine the ...
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Probabilistic recognition of activity using local appearance - all 14 versions »
O Chomat, JL Crowley - Proceedings of the IEEE Computer Society Conference on …, 1999 - doi.ieeecs.org
This paper addresses the problem of probabilistic recog- nition of activities
from local spatio-temporal appearance. Joint statistics of space-time filters
are employed to define histograms which characterize the activities to be ...
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Appearance based process for visual navigation - all 4 versions »
SD Jones, C Andersen, JL Crowley - Intelligent Robots and Systems, 1997. IROS'97., Proceedings …, 1997 - ieeexplore.ieee.org
This paper describes the use of appearance based vision for defining visual
processes for navigation. A visual processes which transform images to commands
and events. A family of visual processes are defined by associating the ...
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Object recognition using coloured receptive fields - all 8 versions »
D Hall, VC de Verdiere, JL Crowley - 6 thEuropean Conference on Computer Vision, Springer Verlag, …, 2000 - Springer
Abstract. This paper describes an extension of a technique for the re- cognition
and tracking of every day objects in cluttered scenes. The goal is to build a
system in which ordinary desktop objects serve as physical icons in a ...
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Multi-modal tracking of interacting targets using gaussian approximations - all 9 versions »
JH Piater, JL Crowley - International Workshop on Performance Evaluation of Tracking …, 2001 - visual-tools.com
We introduce a modular tracker architecture that combines the advantages of
several simple and rapidly performing tracking algorithms. Robust tracking is
facilitated by frame- rate or near-frame-rate processing. A Kalman filter ...
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Transinformation for active object recognition - all 13 versions »
B Schiele, JL Crowley - Computer Vision, 1998. Sixth International Conference on, 1998 - ieeexplore.ieee.org
Page 1 Transinformation for Active Object. Recognition 249 Bernt Schiele MIT —
The Media Laboratory Cambridge, MA 02139, USA bernt©media.mit .edu Abstract
This article develops an analogy between ob- ject recognition and the ...
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Asynchronous Control of Rotation and Translation for a Robot Vehicle - all 5 versions »
JL Crowley, P Reignier, F Grenoble - Journal of Robotics and Autonomous Systems, 1993 - www-prima.inrialpes.fr
... Translation for a Robot Vehicle † James L. Crowley Patrick Reignier LIFIA (IMAG) -
INPG ... February 1993 © 1992 James L. Crowley † This work has been funded by Transitions
Research Corporation and by Project EUREKA EU 110 MITHRA. Page 2. ...
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Asynchronous control of orientation and displacement in a robotvehicle
JL Crowley, G LIFIA-INPG - Robotics and Automation, 1989. Proceedings., 1989 IEEE …, 1989 - ieeexplore.ieee.org
Page 1 CH2750 -8/89/0000/1 277$01 .00 © 1989 IEEE Asynchronous Control of
Orientation and Displacement in a Robot Vehicle James L. Crowley LIFIA (IMAG) -
INPG 4.6 Ave. Felix Viallet Grenoble, France Abstract This paper presents ...
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Event-based activity analysis in live video using a generic object tracker - all 6 versions »
JH Piater, S Richetto, JL Crowley - Performance Evaluation for Tracking and Surveillance, PETS- …, 2002 - montefiore.ulg.ac.be
In earlier work we introduced a generic, modular tracker architecture that
combines the advantages of several sim- ple and rapidly performing tracking
algorithms. The adap- tive choice of critical system parameters such as ...
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Learning locomotion reflexes: a self-supervised neural system for a mobile robot - all 2 versions »
A Dubrawski, JL Crowley - ROB AUTOM SYST, 1994 - csa.com
Learning locomotion reflexes: a self-supervised neural system for a mobile
robot. Artur Dubrawski, James L Crowley ROB AUTOM SYST 12:33, 133-142,
1994. This article is concerned with an artificial ...
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(H=44)

A probabilistic sensor for the perception and recognition of activities - all 16 versions »
O Chomat, J Martin, JL Crowley - Proc. ECCV, 2000 - Springer
Abstract. This paper presents a new technique for the perception and recognition
of activities using statistical descriptions of their spatio- temporal
properties. A set of motion energy receptive fields is designed in order to ...
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Robust Visual Tracking from Dynamic Control of Processing - all 7 versions »
A Caporossi, D Hall, P Reignier, JL Crowley - Sixth IEEE International Workshop on Performance Evaluation …, 2004 - homepages.inf.ed.ac.uk
This paper presents a robust tracking system that em- ploys a supervisory
controller to dynamically control the selection of processing modules and the
parameters used for processing. This system employs multiple pixel level ...
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MagicBoard: A contribution to an intelligent office environment - all 10 versions »
D Hall, CL Gal, J Martin, O Chomat, JL Crowley - Robotics and Autonomous Systems, 2001 - Elsevier
In this paper, we describe an augmented reality tool for collaborative work
called the MagicBoard. The MagicBoard is based on an ordinary white board which
has been enhanced by a video-projector and a steerable camera. A supervisor ...
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SmartOffice: design of an intelligent environment - all 8 versions »
C Le Gal, J Martin, A Lux, JL Crowley - Intelligent Systems, IEEE [see also IEEE Intelligent Systems …, 2001 - ieeexplore.ieee.org
To its developers, SmartOffice offers a testbed for collaborating and combining
independent modules into a single coherent application. Integration requires a
flexible working environment in which module developers shouldn’t have to ...
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Face-tracking and coding for video compression - all 9 versions »
WE Vieux, K Schwerdt, JL Crowley - First International Conference on Computer Vision Systems - Springer
Abstract. While computing power and transmission bandwidth have both been
steadily increasing over the last few years, bandwidth rather than processing
power remains the primary bottleneck for many complex multimedia ...
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Projecting rectified images in an augmented environment - all 9 versions »
S Borkowski, O Riff, JL Crowley - Procams 2003 Workshop on Projector-Camera Systems, 2003 - procams.org
Steerable video projection systems make it possible to use any convenient
surface as a display. This paper describes a steerable projection system in
which a projector and a cam- era are mounted in an overhead motorized ...
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Incremental supervised learning for mobile robot reactive control - all 2 versions »
P Reignier, V Hansen, JL Crowley - Robotics and Autonomous Systems, 1997 - ingentaconnect.com
Reactive control for a mobile robot can be defined as a mapping from a
perceptual space to a command space. This mapping can be hard-coded by the user
(potential fields, fuzzy logic), and can also be learnt. This paper is ...
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Continuity properties of the appearance manifold for mobile robot position estimation
- all 2 versions »
F Pourraz, JL Crowley - Proceedings of the 2nd IEEE Workshop on Perception for …, 1999 - inrialpes.fr
Abstract. This paper presents a method for solving the problem of mobile robot
localisation in an indoor environ- ment. It is based on an approach in which the
scene is learned by taking images from a large number of positions ( x , ...
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Maintaining stereo calibration by tracking image points - all 4 versions »
JL Crowley, P Bobet, C Schmid - Computer Vision and Pattern Recognition, 1993. Proceedings …, 1993 - ieeexplore.ieee.org
Page 1 Maintaining Stereo Calibration by Tracking Image Points 10e3-6919/93
$03.00 © 1993 IEEE James L. Crowley and Philippe Bobet LIFIA(IMAG), Grenoble,
France Abstract An important problem in active 3-D vision is updating the ...
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Early experience with the mediaspace CoMedi - all 10 versions »
J Coutaz, F Bérard, E Carraux, J Crowley - IFIP Working Conference on Engineering for Human Computer …, 1998 - www-prima.imag.fr
... Based on this early experience, we have developed a ... Although it is too early to report
on CoMedi ... have described CoMedi, a prototype mediaspace, that addresses ...
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Coordination of perceptual processes for computer mediated communication - all 6 versions »
J Coutaz, F Berard, JL Crowley, G CLIPS-IMAG - Automatic Face and Gesture Recognition, 1996., Proceedings …, 1996 - ieeexplore.ieee.org
Page 1 Coordination of Perceptual Processes 0-8186-7713-9/96 $5.00 © 1996 IEEE
106 for Computer Mediated Communication Joëlle Coutaz, François Bérard
cLIPS-IMAG, BP 53 38041 Grenoble cedex 9 France { Joelle.Coutaz, ...
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Dynamic composition of process federations for context aware perception of human activity - all 7 versions »
JL Crowley, P Reignier - Integration of Knowledge Intensive Multi-Agent Systems, 2003 … - ieeexplore.ieee.org
Page 1 result. Module state is discussed below. Events Data Events Data State
and capabilities Events Data Events Data KIMAS 2003, October 1-3, 2003, Boston,
MA, USA. Copyright 0-7803-7958-6103/$ 17.00 © 2003 IEEE. KIMAS 2003 ...
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[PS] Experimental comparison of correlation techniques - all 2 versions »
J Martin, JL Crowley - 3rd International Symposium on Intelligent Robotic Systems ( …, 1995 - inrialpes.fr
Abstract. This paper presents an experimental comparisons of different forms of
SSD and normalised cross correlation of image neighborhoods. Signal detection
theory is used as a framework for analysis of correlation techniques. A sum ...
Cited by 15 - Related Articles - View as HTML - Web Search

Context Driven Observation of Human Activity - all 9 versions »
JL Crowley - the Proc. of the European Symposium on Ambient Intelligence, …, 2003 - Springer
Abstract. Human activity is extremely complex. Current technology allows us to
handcraft real-time perception systems for a specific perceptual task. However,
such an approach is inadequate for building systems that accommodate the ...
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[PS] Recognizing motion using local appearance - all 7 versions »
O Chomat, JL Crowley - International Symposium on Intelligent Robotic Systems, …, 1998 - www-prima.inrialpes.fr
Abstract. This paper presents a technique for the analysis and recognition of
body motion using local appearance. A set of spatio-temporal lters are
determined by principal component analysis of the contents of ...
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[CITATION] Dynamic World Modeling for an Intelligent Mobile Robot
JL Crowley - IEEE Seventh International Conference on Pattern Recognition …
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Gaze Control for a Binocular Camera Head
JL Crowley, P Bobet, M Mesrabi - Proceedings of the Second European Conference on Computer …, 1992 - portal.acm.org
... ISBN:3-540-55426-2. Authors, James L. Crowley, Philippe Bobet, Mouafak Mesrabi, ...
Collaborative Colleagues: Philippe Bobet: James L. Crowley. Bart Lamiroy. Mouafak
Mesrabi. Roger Mohr. Karen Sarachik. Karen B. Sarachik. Cordelia Schmid. ...
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Comparison of Kinematic and Visual Servoing for Fixation - all 8 versions »
JL Crowley, M Mesrabi, F Chaumette - IEEE Int Conf Robotics & Automation, 1995 - doi.ieeecs.org
This paper describes experiments in estimation and control of the fixation point
with a 10 degree of freedom head-neck-body system. A system has been constructed
which uses standard kinematic techniques to estimate the fixation point. ...
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Experimental Comparison of Correlation Techniques - all 2 versions »
JL Crowley, J Martin - IAS-4, International Conference on Intelligent Autonomous …, 1995 - citeseer.ist.psu.edu
...in terms of camera configuration and control of processing. In our
experiments, we use zero mean energy normalised cross correlation (ZNCC) see [4]
which when applied match an MxN region R(m;n) of the observed image, to a ...
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Fast computation of characteristic scale using a half octave pyramid - all 7 versions »
JL Crowley, O Riff, J Piater - Workshop on cognitive computing, Zurich, Switzerland, 2002 - vision.ethz.ch
The characteristic (or intrinsic) scale of a local image pattern is the scale
parameter at which the Laplacian provides a local maximum. Nearly every position
in an image will exhibit a small number of such charac- teristic scales. ...
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[PS] Self-Supervised Neural System for Reactive Navigation - all 5 versions »
A Dubrawski, JL Crowley - Proceedings 1994 IEEE International Conference on Robotics …, 1994 - www-2.cs.cmu.edu
This paper deals with an articial neural system for a mobile robot reactive
navigation in an unknown, cluttered environment. A task of a presented system is
to provide a steering angle signal letting a robot reach a goal while ...
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[CITATION] Fast computation of optimal semi-octave pyramids
A Chehikian, JL Crowley - Proc. 7th Scandinavian Conf. on Image Analysis,(Aalborg, …, 1991
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