Speech perception and interpretation rely heavily on nonverbal signs such as lip movements, which are visual indicators fundamental to human communication. This realization has sparked the development of numerous visual-based speech-processing methods. These technologies include the more sophisticated Visual Speech Translation (VST), which converts speech from one language to another based only on visual cues, and Visual Speech Recognition (VSR), which interprets spoken words based only on lip movements.
Handling homophenes, or words that have different sounds but the same lip movements, is a major issue in this domain. This makes it more difficult to distinguish and identify words correctly using only visual cues. Given their significant ability to perceive and model context, Large Language Models (LLMs) have emerged and proven successful in a number of sectors, highlighting their potential to address such difficulties. This capacity is especially important for visual speech processing, as it allows for the critical distinction of homophenes. LLMs’ context modeling can improve the precision of technologies such as VSR and VST by resolving the ambiguities present in visual speech.
In recent research, a team of researchers has presented a unique framework called Visual Speech Processing combined with LLM (VSP-LLM) in response to this potential. This paradigm creatively combines text-based knowledge of LLMs with visual speaking. It uses a self-supervised model for visual speech, translating visual signals into representations at the phoneme level. These representations can then be efficiently connected to textual data by utilizing LLMs’ strengths in context modeling.
This work has suggested a deduplication technique that aims to shorten the input sequence lengths for LLMs in order to meet the computational needs of training using LLMs. With this approach, redundant information is detected and averaged out using visual speech units, which are discretized representations of visual speech properties. This reduces the sequence lengths needed for processing by half and improves computing efficiency without sacrificing performance.
With a deliberate focus on visual speech recognition and translation, VSP-LLM handles a variety of visual speech processing applications. Because of its adaptability, the framework can adjust its functionality to the particular task at hand based on instructions. The main function of the model is to map incoming video data to an LLM’s latent space by using a self-supervised visual speech model. Through this integration, VSP-LLM can better utilize the powerful context modeling that LLMs provide, improving overall performance.
The team has shared that experiments have been conducted on the translation dataset MuAViC benchmark, which has shown the effectiveness of VSP-LLM. The framework showed better performance than expected in lip movement recognition and translation, even when trained with a small dataset consisting of only 15 hours of labeled data. This accomplishment is especially remarkable when contrasted to a recent translation model trained on a somewhat bigger dataset of 433 hours of labeled data.
In conclusion, this study represents a major advancement in the search for more accurate and inclusive communication technology, with potential benefits for improving accessibility, user interaction, and cross-linguistic comprehension. Through the integration of visual cues and the contextual understanding of LLMs, VSP-LLM not only tackles current issues in the area but also creates new opportunities for research and use in human-computer interaction.
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The post KAIST Researchers Propose VSP-LLM: A Novel Artificial Intelligence Framework to Maximize the Context Modeling Ability by Bringing the Overwhelming Power of LLMs appeared first on MarkTechPost.
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