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

Quarterly 14 1996-Oct. 16 1996

Filter Results

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
    Request permission for commercial reuse | |PDF file iconPDF (93 KB)
    Freely Available from IEEE
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An investigation into face pose distributions

    Publication Year: 1996, Page(s):265 - 270
    Cited by:  Papers (35)  |  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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Pfinder: real-time tracking of the human body

    Publication Year: 1996, Page(s):51 - 56
    Cited by:  Papers (61)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (636 KB)

    Pfinder is a real-time system for tracking and interpretation of people. It runs on a standard SGI Indy computer, and has performed reliably on thousands of people in many different physical locations. The system uses a multi-class statistical model of color and shape to obtain a 2-D representation of head and hands in a wide range of viewing conditions. These representations are useful for applic... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hand sign recognition from intensity image sequences with complex backgrounds

    Publication Year: 1996, Page(s):259 - 264
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (580 KB)

    In this paper, we have presented a new approach to recognize hand signs. In our approach, motion understanding (the hand movement) is tightly coupled with spatial recognition (hand shape). The system uses the multiclass, multidimensional discriminant analysis to automatically select the most discriminating features for gesture classification. A recursive partition tree approximator is proposed to ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Understanding manipulation in video

    Publication Year: 1996, Page(s):94 - 99
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (972 KB)

    Manipulations are a significant subset of human gestures that are distinguished by the fact that their logic and meaning are particularly clear, being heavily constrained by physical causality. We present techniques and causal semantics for interpreting video of manipulation tasks such as disassembly. Psychologically-based causal constraints are used to detect meaningful changes in the integrity a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robust classification of hand postures against complex backgrounds

    Publication Year: 1996, Page(s):170 - 175
    Cited by:  Papers (78)  |  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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Toward robust skin identification in video images

    Publication Year: 1996, Page(s):379 - 384
    Cited by:  Papers (41)  |  Patents (2)
    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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Comparison of visible and infra-red imagery for face recognition

    Publication Year: 1996, Page(s):182 - 187
    Cited by:  Papers (49)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (956 KB)

    This paper presents initial results in a study comparing the effectiveness of visible and infra-red (IR) imagery for detecting and recognizing faces in areas where personnel identification is critical, (e.g. airports and secure buildings). We compare the effectiveness of visible versus IR imagery by running three face recognition algorithms on a database of images collected for this study. There a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Automatic interpolation and recognition of face images by morphing

    Publication Year: 1996, Page(s):128 - 135
    Cited by:  Papers (12)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (880 KB)

    This article presents a new method for generating an optimum image morph field, i.e. an optimum mapping of one image to another image by distorting the brightness and geometry of the former image. The mapping is calculated by maximizing the probability of the morph field in a Bayesian framework. In contrast to other techniques this new method needs no training and is derived based on group invaria... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Automatic spoken affect classification and analysis

    Publication Year: 1996, Page(s):363 - 367
    Cited by:  Papers (15)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (456 KB)

    This paper reports results from preliminary experiments on automatic classification of spoken affect valence. The task was to classify short spoken sentences into one of two classes: approving or disapproving. Using an optimal combination of six acoustic measurements our classifier achieved an accuracy of 65% to 88% for speaker dependent, text-independent classification. The results suggest that p... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Happy patrons make better tippers: creating a robot waiter using Perseus and the Animate Agent architecture

    Publication Year: 1996, Page(s):253 - 258
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (716 KB)

    As autonomous robots become increasingly adept at performing simple tasks like moving from place to place and picking up and delivering objects, it is becoming apparent that an important area of robotic research is that of developing natural interfaces for controlling them. In the context of building a robot “waiter”, the authors demonstrate the use of the Perseus architecture for gest... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Facial analysis and synthesis using image-based models

    Publication Year: 1996, Page(s):116 - 121
    Cited by:  Papers (24)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (772 KB)

    In this paper we describe image-based modeling techniques that make possible the creation of photo-realistic computer models of real human faces. The image-based model is built using example views of the face, bypassing the need for any three-dimensional computer graphics models. A learning network is trained to associate each of the example images with a set of pose and expression parameters. For... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Cardboard people: a parameterized model of articulated image motion

    Publication Year: 1996, Page(s):38 - 44
    Cited by:  Papers (182)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (728 KB)

    We extend the work of Black and Yacoob (1995) on the tracking and recognition of human facial expressions using parametrized models of optical flow to deal with the articulated motion of human limbs. We define a “card-board person model” in which a person's limbs are represented by a set of connected planar patches. The parametrized image motion of these patches in constrained to enfor... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multi-modal system for locating heads and faces

    Publication Year: 1996, Page(s):88 - 93
    Cited by:  Papers (49)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (992 KB)

    We designed a modular system using a combination of shape analysis, color segmentation and motion information for locating reliably heads and faces of different sizes and orientations in complex images. The first of the system's three channels does a shape analysis on gray-level images to determine the location of individual facial features as well as the outlines of heads. In the second channel t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Real-time visual recognition of facial gestures for human-computer interaction

    Publication Year: 1996, Page(s):351 - 356
    Cited by:  Papers (24)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1008 KB)

    People naturally express themselves through facial gestures and expressions. Our goal is to build a facial gesture human-computer interface for use in robot applications. We have implemented an interface that tracks a person's facial features in real time (30 Hz). Our system does not require special illumination nor facial makeup. By using multiple Kalman filters we accurately predict and robustly... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Computing 3-D head orientation from a monocular image sequence

    Publication Year: 1996, Page(s):242 - 247
    Cited by:  Papers (68)  |  Patents (11)
    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»

    Full text access may be available. Click article title to sign in or learn about subscription options.