Fundamentals of speech recognition
Fundamentals of speech recognition
Scene change detection techniques for video database systems
Multimedia Systems
Sign language recognition using model-based tracking and a 3D Hopfield neural network
Machine Vision and Applications
Partly-Hidden Markov Model and its Application to Gesture Recognition
ICASSP '97 Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '97) -Volume 4 - Volume 4
Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
Simultaneous Localization and Recognition of Dynamic Hand Gestures
WACV-MOTION '05 Proceedings of the IEEE Workshop on Motion and Video Computing (WACV/MOTION'05) - Volume 2 - Volume 02
Viewpoint invariant sign language recognition
Computer Vision and Image Understanding
Thai Sign Language Translation Using Fuzzy C-Means and Scale Invariant Feature Transform
ICCSA '08 Proceedings of the international conference on Computational Science and Its Applications, Part II
Taiwan sign language (TSL) recognition based on 3D data and neural networks
Expert Systems with Applications: An International Journal
Computer Vision and Image Understanding
Modelling and segmenting subunits for sign language recognition based on hand motion analysis
Pattern Recognition Letters
Coupled grouping and matching for sign and gesture recognition
Computer Vision and Image Understanding
Video-based signer-independent Arabic sign language recognition using hidden Markov models
Applied Soft Computing
Hand gesture recognition using a neural network shape fitting technique
Engineering Applications of Artificial Intelligence
A Chinese sign language recognition system based on SOFM/SRN/HMM
Pattern Recognition
A person independent system for recognition of hand postures used in sign language
Pattern Recognition Letters
Layered architecture for real time sign recognition: Hand gesture and movement
Engineering Applications of Artificial Intelligence
American Sign Language word recognition with a sensory glove using artificial neural networks
Engineering Applications of Artificial Intelligence
Gaussian Process Dynamical Models for hand gesture interpretation in Sign Language
Pattern Recognition Letters
3D hand tracking for human computer interaction
Image and Vision Computing
Dynamic hand gesture recognition: An exemplar-based approach from motion divergence fields
Image and Vision Computing
Glove-Talk: a neural network interface between a data-glove and a speech synthesizer
IEEE Transactions on Neural Networks
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Visual communication is important for a deft and/or mute person. It is also one of the tools for the communication between human and machines. In this paper, we develop an automatic Thai sign language translation system that is able to translate sign language that is not finger-spelling sign language. In particular, we utilize Scale Invariant Feature Transform (SIFT) to match a test frame with observation symbols from keypoint descriptors collected in the signature library. These keypoint descriptors are computed from several keyframes that are recorded at different times of day for several days from five subjects. Hidden Markov Models (HMMs) are then used to translate observation sequences to words. We also collect Thai sign language videos from 20 subjects for testing. The system achieves approximately 86-95% for signer-dependent on the average, 79.75% for signer-semi-independent (same subjects used in the HMM training only) on the average and 76.56% for signer-independent on the average. These results are from the constrained system in which each signer wears a shirt with long sleeves in front of dark background. The unconstrained system in which each signer does not wear a long-sleeve shirt in front of various natural backgrounds yields a good result of around 74% on the average on the signer-independent experiment. The important feature of the proposed system is the consideration of shapes and positions of fingers, in addition to hand information. This feature provides the system ability to recognize the hand sign words that have similar gestures.