Comparison of Autoencoders for tokenization of ASL datasets

Fuente: arXiv
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Autori principali: Praun-Petrovic, Vouk, Koundinya, Aadhvika, Prahallad, Lavanya
Natura: Preprint
Pubblicazione: 2025
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author Praun-Petrovic, Vouk
Koundinya, Aadhvika
Prahallad, Lavanya
author_facet Praun-Petrovic, Vouk
Koundinya, Aadhvika
Prahallad, Lavanya
contents Generative AI, powered by large language models (LLMs), has revolutionized applications across text, audio, images, and video. This study focuses on developing and evaluating encoder-decoder architectures for the American Sign Language (ASL) image dataset, consisting of 87,000 images across 29 hand sign classes. Three approaches were compared: Feedforward Autoencoders, Convolutional Autoencoders, and Diffusion Autoencoders. The Diffusion Autoencoder outperformed the others, achieving the lowest mean squared error (MSE) and highest Mean Opinion Score (MOS) due to its probabilistic noise modeling and iterative denoising capabilities. The Convolutional Autoencoder demonstrated effective spatial feature extraction but lacked the robustness of the diffusion process, while the Feedforward Autoencoder served as a baseline with limitations in handling complex image data. Objective and subjective evaluations confirmed the superiority of the Diffusion Autoencoder for high-fidelity image reconstruction, emphasizing its potential in multimodal AI applications such as sign language recognition and generation. This work provides critical insights into designing robust encoder-decoder systems to advance multimodal AI capabilities.
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id arxiv_https___arxiv_org_abs_2501_06942
institution arXiv
publishDate 2025
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spellingShingle Comparison of Autoencoders for tokenization of ASL datasets
Praun-Petrovic, Vouk
Koundinya, Aadhvika
Prahallad, Lavanya
Machine Learning
Computer Vision and Pattern Recognition
Generative AI, powered by large language models (LLMs), has revolutionized applications across text, audio, images, and video. This study focuses on developing and evaluating encoder-decoder architectures for the American Sign Language (ASL) image dataset, consisting of 87,000 images across 29 hand sign classes. Three approaches were compared: Feedforward Autoencoders, Convolutional Autoencoders, and Diffusion Autoencoders. The Diffusion Autoencoder outperformed the others, achieving the lowest mean squared error (MSE) and highest Mean Opinion Score (MOS) due to its probabilistic noise modeling and iterative denoising capabilities. The Convolutional Autoencoder demonstrated effective spatial feature extraction but lacked the robustness of the diffusion process, while the Feedforward Autoencoder served as a baseline with limitations in handling complex image data. Objective and subjective evaluations confirmed the superiority of the Diffusion Autoencoder for high-fidelity image reconstruction, emphasizing its potential in multimodal AI applications such as sign language recognition and generation. This work provides critical insights into designing robust encoder-decoder systems to advance multimodal AI capabilities.
title Comparison of Autoencoders for tokenization of ASL datasets
topic Machine Learning
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2501.06942