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Sign language recognition using sub-units

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TLDR
This paper discusses sign language recognition using linguistic sub-units, presenting three types of sub- units for consideration; those learnt from appearance data as well as those inferred from both 2D or 3D tracking data.
Abstract
This paper discusses sign language recognition using linguistic sub-units. It presents three types of sub-units for consideration; those learnt from appearance data as well as those inferred from both 2D or 3D tracking data. These sub-units are then combined using a sign level classifier; here, two options are presented. The first uses Markov Models to encode the temporal changes between sub-units. The second makes use of Sequential Pattern Boosting to apply discriminative feature selection at the same time as encoding temporal information. This approach is more robust to noise and performs well in signer independent tests, improving results from the 54% achieved by the Markov Chains to 76%.

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Progressive Transformers for End-to-End Sign Language Production

TL;DR: A back translation evaluation mechanism for SLP is proposed, presenting benchmark quantitative results on the challenging RWTH-PHoENIX-Weather-2014T(PHOENIX14T) dataset and setting baselines for future research.
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TSPNet: Hierarchical Feature Learning via Temporal Semantic Pyramid for Sign Language Translation

TL;DR: In this paper, a hierarchical sign video feature learning method via a temporal semantic pyramid network is proposed, which takes into account multiple temporal granularities, thus alleviating the need for accurate video segmentation.
Journal ArticleDOI

Robust sign language recognition by combining manual and non-manual features based on conditional random field and support vector machine

TL;DR: A new method for recognizing manual signals and facial expressions as non-manual signals and can accurately recognize the sign language at an 84% rate based on utterance data is proposed.
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Accessible Options for Deaf People in e-Learning Platforms: Technology Solutions for Sign Language Translation

TL;DR: This paper presents a list of potential technology options for the recognition, translation and presentation of SL (and potential problems) through the analysis of assistive technologies, methods and techniques to contribute for the development of the state of the art and ensure digital inclusion of the deaf people in e-learning platforms.
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Transferring Cross-domain Knowledge for Video Sign Language Recognition

TL;DR: A novel method is proposed that learns domain-invariant visual concepts and fertilizes WSLR models by transferring knowledge of subtitled news sign to them, and outperforms previous state-of-the-art methods significantly.
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