Compressive Video Acquisition, Fusion and Processing

TitleCompressive Video Acquisition, Fusion and Processing
Publication TypeReports
Year of Publication2010
AuthorsBaraniuk RG, Chellappa R, Wakin M
Date Published2010/12/14/
Keywords*DATA FUSION, *DETECTORS, *SIGNAL PROCESSING, *VIDEO SIGNALS, ACQUISITION, COLLECTION, COMMUNICATION AND RADIO SYSTEMS, COMPRESSIVE PROPERTIES, COMPRESSIVE SAMPLING, compressive sensing, COMPRESSIVE VIDEO, decision making, DEPLOYMENT, DETECTION, DYNAMICS, IMAGE PROCESSING, Linear systems, Linearity, MANIFOLDS(ENGINES), measurement, MISCELLANEOUS DETECTION AND DETECTORS, MODELS, sampling, THEORY, TRAJECTORIES
Abstract

Modern developments in sensor technology, signal processing, and wireless communications have enabled the conception and deployment of large-scale networked sensing systems spanning numerous collection platforms and varied modalities. These systems have the potential to make intelligent decisions by integrating information from massive amounts of sensor data. Before such benefits can be achieved, significant advances must be made in methods for communicating, fusing, and processing this evergrowing volume of diverse data. In this one-year research project, we aimed to expose the fundamental issues and pave the way for further careful study of compressive approaches to video acquisition, fusion, and processing. In doing so, we developed a theoretical definition of video temporal bandwidth and applied the theory to compressive sampling and reconstruction. We created a new framework for compressive video sensing based on linear dynamical systems, lowering the compressive measurement rate. Finally, we applied our own joint manifold model to a variety of relevant image processing problems, demonstrating the model's effectiveness and ability to overcome noise and occlusion obstacles. We also showed how joint manifold models can discover an object's trajectory, an important step towards video fusion.

URLhttp://stinet.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA533703