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Full-Text Articles in Physical Sciences and Mathematics
Hidden Markov Models For Visual Speech Synthesis In Limited Data, Harold A. Arb
Hidden Markov Models For Visual Speech Synthesis In Limited Data, Harold A. Arb
Theses and Dissertations
This work presents a new approach for estimating control points (facial locations that control movement) to allow the artificial generation of video with apparent mouth movement (visual speech) time-synced with recorded audio. First, Hidden Markov Models (HMMs) are estimated for each visual speech category (viseme) present in stored video data, where a category is defined as the mouth movement corresponding to a given sound and where the visemes are further categorized as trisemes (a viseme in the context of previous and following visemes). Next, a decision tree is used to cluster and relate states in the HMMs that are similar …
A Semantic Interface To Scenario Component Reuse In Dod Simulation Systems, Lawrence A. Breighner
A Semantic Interface To Scenario Component Reuse In Dod Simulation Systems, Lawrence A. Breighner
Theses and Dissertations
The Department of Defense utilizes various simulation systems to model employment of forces and weapons systems in operational environments. The data files that model these environments and weapons systems are extremely large and complex, and require many person-hours to develop. Compounding the problem, these data files are distributed across multiple systems in a heterogeneous environment. Currently, there is no automated means of identifying and retrieving reusable portions of these files for reuse in a new scenario under development. This work develops a multi-agent system that catalogs the files, and provides the user with a means of identifying and retrieving reusable …