111. REAL-TIME SIGN LANGUAGE FINGERSPELLING RECOGNITION USING CONVOLUTIONAL NEURAL NETWORKS FROM DEPTH MAP

Department: Electrical & Computer Engineering
Faculty Advisor(s): Truong Nguyen

Primary Student
Name: Byeong Keun Kang
Email: bkkang@ucsd.edu
Phone: 858-900-6855
Grad Year: 2018

Student Collaborators
Subarna Tripathi, stripathi@ucsd.edu

Abstract
Sign language recognition is important for natural and convenient communication between deaf community and hearing majority. We take the highly efficient initial step of automatic fingerspelling recognition system using convolutional neural networks (CNNs) from depth maps. In this work, we consider relatively larger number of classes compared with the previous literature. We train CNNs for the classification of 31 alphabets and numbers using a subset of collected depth data from multiple subjects. While using different learning configurations, such as hyper-parameter selection with and without validation, we achieve 99.99% accuracy for observed signers and 83.58% to 85.49% accuracy for new signers. The result shows that accuracy improves as we include more data from different subjects during training. The processing time is 3 ms for the prediction of a single image. To the best of our knowledge, the system achieves the highest accuracy and speed.

Industry Application Area(s)
Electronics/Photonics | Software, Analytics

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