We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Handwriting Recognition Based on 3D Accelerometer Data by Deep Learning.
- Authors
Lopez-Rodriguez, Pedro; Avina-Cervantes, Juan Gabriel; Contreras-Hernandez, Jose Luis; Correa, Rodrigo; Ruiz-Pinales, Jose
- Abstract
Online handwriting recognition has been the subject of research for many years. Despite that, a limited number of practical applications are currently available. The widespread use of devices such as smartphones, smartwatches, and tablets has not been enough to convince the user to use pen-based interfaces. This implies that more research on the pen interface and recognition methods is still necessary. This paper proposes a handwritten character recognition system based on 3D accelerometer signal processing using Convolutional Neural Networks (CNN) and Long Short-Term Memory (LSTM). First, a user wearing an MYO armband on the forearm writes a multi-stroke freestyle character on a touchpad by using the finger or a pen. Next, the 3D accelerometer signals generated during the writing process are fed into a CNN, LSTM, or CNN-LSTM network for recognition. The convolutional backbone obtains spatial features in order to feed an LSTM that extracts short-term temporal information. The system was evaluated on a proprietary dataset of 3D accelerometer data collected from multiple users with an armband device, corresponding to handwritten English lowercase letters (a–z) and digits (0–9) in a freestyle. The results show that the proposed system overcomes other systems from the state of the art by 0.53%.
- Subjects
DEEP learning; PATTERN recognition systems; CONVOLUTIONAL neural networks; ACCELEROMETERS; SIGNAL processing; HANDWRITING
- Publication
Applied Sciences (2076-3417), 2022, Vol 12, Issue 13, pN.PAG
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app12136707