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

Quarterly 14 1996-Oct. 16 1996

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Displaying Results 1 - 25 of 63
  • 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
  • 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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  • A probabilistic framework for perceptual grouping of features for human face detection

    Publication Year: 1996, Page(s):16 - 21
    Cited by:  Papers (14)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (748 KB)

    Present approaches to human face detection have made several assumptions that restrict their ability to be extended to general imaging conditions. We identify that the key factor in a generic and robust system is that of exploiting a large amount of evidence, related and reinforced by model knowledge through a probabilistic framework. In this paper, we propose a face detection framework that group... 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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  • 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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  • LISTEN: a system for locating and tracking individual speakers

    Publication Year: 1996, Page(s):283 - 288
    Cited by:  Papers (11)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    Both visual and acoustical informations provide effective means of telecommunication between persons. In this context, the face is the most important part of the person both visually and acoustically. We describe how the cooperation of image and audio processing allows to track a person's face and to collect the audio information it produces. We present detection techniques of regions of interest ... View full abstract»

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  • Toward robust skin identification in video images

    Publication Year: 1996, Page(s):379 - 384
    Cited by:  Papers (39)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    There are many applications where it is desirable to segment a video image into regions defined by color. Among these are the recognition of gesture from the image (as opposed to instrumented gloves), facial expression and orientation, and video teleconferencing. In these examples, the important elements of the images are human hands and face, which share common skin coloration of the subject. Thi... View full abstract»

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  • Detection of human faces using decision trees

    Publication Year: 1996, Page(s):248 - 252
    Cited by:  Papers (14)  |  Patents (71)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    The paper proposes a novel algorithm for face detection using decision trees (DT) and shows its generality and feasibility using a database consisting of 2340 face images from the FERET database (corresponding to 817 subjects and including 190 sets of duplicates) over a semi-uniform background. The approach used for face detection involves three main stages, those of location, cropping, and post-p... 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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  • Adaptive automatic facial feature segmentation

    Publication Year: 1996, Page(s):277 - 282
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    Automatic facial feature detection is typically solved by using manually segmented images to train a feature detector In this paper we investigate whether it is possible to improve the detection performance of such a feature detector by using additional unsegmented images. We propose a new adaptive automatic facial feature segmentation algorithm which aims to do this. The experimental results usin... View full abstract»

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  • Example-based head tracking

    Publication Year: 1996, Page(s):374 - 378
    Cited by:  Papers (26)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (952 KB)

    We want to estimate the pose of human heads. This estimation involves a nonlinear mapping from the input image to an output parametric description. We characterize the mapping through examples from a training set, outputting the pose of the nearest example neighbor of the input. This is vector quantization, with the modification that we store an output parameter code with each quantized input code... View full abstract»

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  • Robust classification of hand postures against complex backgrounds

    Publication Year: 1996, Page(s):170 - 175
    Cited by:  Papers (74)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    A system for the classification of hand postures against complex backgrounds in grey-level images is presented. The system employs elastic graph matching, which has already been successfully employed for the recognition of faces. Our system reaches 86.2% correct classification on our gallery of 239 images of ten postures against complex backgrounds. The system is robust with respect to certain var... View full abstract»

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  • Computing 3-D head orientation from a monocular image sequence

    Publication Year: 1996, Page(s):242 - 247
    Cited by:  Papers (64)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    An approach for estimating 3D head orientation in a monocular image sequence is proposed. The approach employs recently developed image-based parameterized tracking for face and face features to locate the area in which a sub-pixel parameterized shape estimation of the eye's boundary is performed. This involves tracking of five points (four at the eye corners and the fifth is the lip of the nose).... View full abstract»

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  • Modelling the variability in face images

    Publication Year: 1996, Page(s):328 - 333
    Cited by:  Papers (8)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (804 KB)

    Model based approaches to the interpretation of face images have proved very successful. We have previously described statistically based models of face shape and grey-level appearance and shown how they can be used to perform various coding and interpretation tasks (Lanitis et al., 1995). In the paper we describe improved methods of modelling, which couple shape and grey-level information more di... View full abstract»

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  • A theoretical consideration of pattern space trajectory for gesture spotting recognition

    Publication Year: 1996, Page(s):72 - 77
    Cited by:  Papers (14)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    We propose a new appearance-based feature for real-time gesture recognition from motion images. The feature is the shape of the trajectory caused by gesture, in pattern space defined by inner-product between patterns on frame images. It has three merits, (1) invariant for the target human man's position, size and lie, (2) gesture recognition without interpreting frame image contents, (3) no costly... View full abstract»

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  • Speechreading: an overview of image processing, feature extraction, sensory integration and pattern recognition techniques

    Publication Year: 1996, Page(s):XVI - XXVI
    Cited by:  Papers (14)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    We give an overview of speechreading systems from the perspective of the face and gesture recognition community, paying particular attention to approaches to key design decisions and the benefits and drawbacks. We discuss the central issue of sensory integration how much processing of the acoustic and the visual information should go on before integration how should it be integrated. We describe s... View full abstract»

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  • Tracking faces

    Publication Year: 1996, Page(s):271 - 276
    Cited by:  Papers (18)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (812 KB)

    Robust tracking and segmentation of faces is a prerequisite for face analysis and recognition. In this paper we describe an approach to this problem which is well suited to surveillance applications with poorly constrained viewing conditions. It integrates motion-based tracking with model based face detection to produce segmented face sequences from complex scenes containing several people. The mo... 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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  • Face and hand gesture recognition using hybrid classifiers

    Publication Year: 1996, Page(s):164 - 169
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    This paper advances the methodology of hybrid classification architectures for face and hand gesture recognition tasks and shows their feasibility through experimental studies using the FERET data base and gesture images. The hybrid architecture, consisting of an ensemble of connectionist networks-radial basis functions (RBF)-and inductive decision trees (DT), combines the merits of `holistic' tem... View full abstract»

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  • Segmentation and tracking of faces in color images

    Publication Year: 1996, Page(s):236 - 241
    Cited by:  Papers (64)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1156 KB)

    The authors present a new approach for automatically segmentation and tracking of faces in color images. Segmentation of faces is performed by evaluating color and shape information. First, skin-like regions are determined based on the color attributes hue and saturation. Then regions with elliptical shape are selected as face hypotheses. They are verified by searching for facial features in their... 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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  • Recovering the temporal structure of natural gesture

    Publication Year: 1996, Page(s):66 - 71
    Cited by:  Papers (13)  |  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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  • An investigation into face pose distributions

    Publication Year: 1996, Page(s):265 - 270
    Cited by:  Papers (33)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    Visual perception of faces is invariant under many transformations, perhaps the most problematic of which is pose change (face rotating in depth). We use a variation of Gabor wavelet transform (GWT) as a representation framework for investigating face pose measurement. Dimensionality reduction using principal components analysis (PCA) enables pose changes to be visualised as manifolds in low-dimen... View full abstract»

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