Proceedings of the Second International Conference on Automatic Face and Gesture Recognition

Quarterly 14 1996-Oct. 16 1996

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  • Proceedings of the Second International Conference on Automatic Face and Gesture Recognition

    Publication Year: 1996
    Request permission for commercial reuse | PDF file iconPDF (312 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 1996, Page(s):385 - 386
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    Freely Available from IEEE
  • From 2D images to 3D face geometry

    Publication Year: 1996, Page(s):301 - 306
    Cited by:  Papers (12)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    This paper presents a global scheme for 3D face reconstruction and face segmentation into a limited number of analytical patches from stereo images. From a depth map, we generate a 3D model of the face which is iteratively deformed under stereo and shape-from-shading constraints as well as differential features. This model enables us to improve the quality of the depth map, from which we perform t... View full abstract»

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  • Real-time hand-arm motion analysis using a single video camera

    Publication Year: 1996, Page(s):323 - 327
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    We describe a video-based analysis system for acquisition and classification of hand-arm motion concerning German sign language. These motions are recorded with a single video camera by use of a modular framegrabber system. Data acquisition as well as motion classification are performed in real-time. A colour coded glove and coloured markers at the elbow and shoulder are used. These markers are se... View full abstract»

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  • Locating facial features in image sequences using neural networks

    Publication Year: 1996, Page(s):230 - 235
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The paper describes a method for the automatic location of facial features, such as eyes, nose and mouth, in image sequences using a neural network approach. It is shown that by modeling the feature sought as a structural assembly of micro-features, and by using a probabilistic interpretation of neural network outputs, it is possible to construct a location system that is more robust than a locati... View full abstract»

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  • Detection of human faces under scale, orientation and viewpoint variations

    Publication Year: 1996, Page(s):295 - 300
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (884 KB)

    Many current human face detection algorithms make implicit assumptions about the scale, orientation or viewpoint of faces in an image and exploit these constraints to detect and localize faces. The algorithm may be robust for the assumed conditions but it becomes very difficult to extend the results to general imaging conditions. In an earlier paper (Yow and Cipolla, 1996) we proposed a feature-ba... View full abstract»

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  • Spotting recognition of human gestures from time-varying images

    Publication Year: 1996, Page(s):318 - 322
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    We study spotting recognition of human gestures from time-varying images. We propose a feature extraction method and a spotting method. The feature extraction reduces each frame of motion into a frame image of small size, such as 3×3 pixels. We show that the feature with 3×3 is the best one to provide robust characteristics to the changes of cloth and background. The spotting recogniti... View full abstract»

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  • Real-time facial motion analysis for virtual teleconferencing

    Publication Year: 1996, Page(s):340 - 344
    Cited by:  Papers (4)  |  Patents (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    Image analysis for a virtual teleconferencing system is described. Eyes are tracked in real-time using multiresolution grey-scale correlation. Locating the eyes allows the positions of other facial features to be approximated. The head orientation is calculated by comparing the eye locations in the video images to the positions of the top and sides of the head. The direction and gesture parameters... View full abstract»

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  • Face distinctiveness in recognition across viewpoint: an analysis of the statistical structure of face spaces

    Publication Year: 1996, Page(s):10 - 15
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    We present an analysis of the effects of face distinctiveness on the performance of a computational model of recognition over viewpoint change. In the first stage of the model, the face stimulus is normalized by being mapped to an arbitrary standard view. In the second stage, the normalized stimulus is mapped into a “face space” spanned by a number of reference faces, and is classified... View full abstract»

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  • Recovering the temporal structure of natural gesture

    Publication Year: 1996, Page(s):66 - 71
    Cited by:  Papers (14)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1012 KB)

    A method for the recovery of the temporal structure and phases in natural gesture is presented. The work is motivated by recent developments in the theory of natural gesture which have identified several key aspects of gesture important to communication. In particular, gesticulation during conversation can be coarsely characterized as periods of bi-phasic or tri-phasic gesture separated by a rest ... View full abstract»

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  • Information theoretic view-based and modular face detection

    Publication Year: 1996, Page(s):198 - 203
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    This paper describes information theoretic methods for the determination of the optimal subset of pixels for the problem of face detection in complex backgrounds. A view-based method is described which has limitations due to misalignments. This motivates the modular feature based method which minimizes the misalignment problem. Empirical comparisons between the view-based, modular, and sum of squa... View full abstract»

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  • Deformable model-based face shape and motion estimation

    Publication Year: 1996, Page(s):146 - 150
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    We describe a model-based approach to human face shape and motion estimation using a deformable model framework in which optical flow information has been integrated. Our 3-D deformable face model uses a small number of parameters to describe a rich variety of face shapes and facial expressions. A detailed face model allows for the handling of self-occlusion and the correction of error accumulatio... View full abstract»

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  • Towards unconstrained face recognition from image sequences

    Publication Year: 1996, Page(s):224 - 229
    Cited by:  Papers (20)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (916 KB)

    The paper presents experiments using a radial basis function (RBF) network to tackle the unconstrained face recognition problem using low resolution video information. Input representations that mimic the effects of receptive field functions found at various stages of the human vision system were used with RBF network; that learnt to classify and generalise over different views of each person to b... View full abstract»

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  • Visual interaction with lifelike characters

    Publication Year: 1996, Page(s):368 - 373
    Cited by:  Papers (6)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    This paper explores the use of fast, simple computer vision techniques to add compelling visual capabilities to social user interfaces. Social interfaces involve the user in natural dialog with animated, “lifelike” characters. However, current systems employ spoken language as the only input modality. Used effectively, vision can greatly enhance the user's experience interacting with t... View full abstract»

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  • Recognition of social dancing from auditory and visual information

    Publication Year: 1996, Page(s):289 - 294
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    We discuss the recognition of social dancing from a real image sequence and an acoustic signal of music. Since social dancing involves somewhat complicated movements by multiple humans, it is difficult to recover a detailed description of each dancer's posture by the conventional approach based on matching of an articulated human body model to each frame of an image sequence. Using the results of ... View full abstract»

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  • Finding skin in color images

    Publication Year: 1996, Page(s):312 - 317
    Cited by:  Papers (96)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    This paper describes the techniques used to separate the hand from a cluttered background in a gesture recognition system. Target colors are identified using a histogram-like structure called a Color Predicate, which is trained in real-time using a novel algorithm. Running on standard PC hardware, the segmentation is of sufficient speed and quality to support an interactive user interface. The met... View full abstract»

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  • Face detection using local maxima

    Publication Year: 1996, Page(s):334 - 339
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    Automatic human face detection in digital images with a complex environment is still an unsolved problem in computer vision and pattern recognition. It has several uses, such as human face recognition, content based image retrieval and model based video coding. We present an automatic human face detection system where several methods are tested and compared. The underlying principle of the system ... View full abstract»

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  • Inductive learning in hand pose recognition

    Publication Year: 1996, Page(s):78 - 83
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    Hand pose recognition for gestural systems must be able to handle variations in user hand anatomy, perspective effects, and the idiosyncrasies of individual gesture presentation. We present an inductive learning system that is able to derive a rulebase of disjunctive normal form formulae in which each DNF describes a hand pose, and each conjunct within the DNF constitutes a single rule. The system... View full abstract»

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  • Manifold caricatures: on the psychological consistency of computer face recognition

    Publication Year: 1996, Page(s):4 - 9
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    We derive a machine-based face recognition system theoretically which is similar to many practical ones and show its behaviour has features of the human system. We reproduce the caricature effect, show that human and machine-based similarity and distinctiveness are connected and confirm machine based predictions of typicality with human data. Finally we draw lessons for machine-based recognition View full abstract»

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  • Dynamical system representation, generation, and recognition of basic oscillatory motion gestures

    Publication Year: 1996, Page(s):60 - 65
    Cited by:  Papers (17)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    We present a system for generation and recognition of oscillatory gestures. Inspired by gestures used in two representative human-to-human control areas, we consider a set of oscillatory motions and refine from them a 24 gesture lexicon. Each gesture is modeled as a dynamical system with added geometric constraints to allow for real time gesture recognition using a small amount of processing time ... View full abstract»

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  • Recognizing articulated objects with information theoretic methods

    Publication Year: 1996, Page(s):45 - 50
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    This paper addresses the problem of recognizing articulated and deformable objects. In particular we are interested in human arm and leg articulations. Our approach is a Bayesian-Information integration of shape similarity and snakes, and naturally combines top-down and bottom-up algorithms. The bottom-up method extracts edges, then constructs snakes (or contours) by grouping edge elements and fee... View full abstract»

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  • Discriminant analysis and eigenspace partition tree for face and object recognition from views

    Publication Year: 1996, Page(s):192 - 197
    Cited by:  Papers (15)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    The method we have been using is based on our Self-Organizing Hierarchical Optimal Subspace Learning and Inference Framework (SHOSLIF). It uses the theories of linear discriminant projection for automatic optimal feature selection in each of the internal nodes of a Space-Tessellation Tree. In this paper, we present our recent study on the applicability of the approach to variability in position, s... View full abstract»

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  • Towards 3D hand tracking using a deformable model

    Publication Year: 1996, Page(s):140 - 145
    Cited by:  Papers (62)  |  Patents (62)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (956 KB)

    In this paper we first describe how we have constructed a 3D deformable Point Distribution Model of the human hand, capturing training data semi-automatically from volume images via a physically-based model. We then show how we have attempted to use this model in tracking an unmarked hand moving with 6 degrees of freedom (plus deformation) in real time using a single video camera. In the course of... View full abstract»

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  • Gestural interface to a visual computing environment for molecular biologists

    Publication Year: 1996, Page(s):30 - 35
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (692 KB)

    In recent years there has been tremendous progress in 3-D, immersive display and virtual reality (VR) technologies. Scientific visualization af data is one of many applications that has benefited from this progress. To fully exploit the potential of these applications in the new environment there is a need for “natural” interfaces that allow the manipulation of such displays without bu... View full abstract»

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  • Visual filters for face recognition

    Publication Year: 1996, Page(s):218 - 223
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    The authors describe a general approach for the multiscale representation, detection, and recognition of object primitives as it applies to face recognition tasks. The approach is based on radially non-uniform sampling strategy, and a local light adaptation mechanism for low-level image representation. Early processing involves feature encoding and classification using visual filter banks implemen... View full abstract»

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