Computer vision publications
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The F Region and Topside Ionosphere Response to a Strong Geomagnetic Storm at Arecibo
We analyze the data derived from the Arecibo incoherent scatter radar measurements to investigate the response of the F region and topside ionosphere to a strong geomagnetic storm that occurred during the…
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Affect Analysis in Natural Human Interaction Using Joint Hidden Conditional Random Fields
We present a novel approach for multi-modal affect analysis in human interactions that is capable of integrating data from multiple modalities while also taking into account temporal dynamics.
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3D Optic Disc Reconstruction Via a Global Fundus Stereo Algorithm
This paper presents a novel method to recover 3D structure of the optic disc in the retina from two uncalibrated fundus images.
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Video Object Segmentation through Spatially Accurate and Temporally Dense Extraction of Primary Object Regions
In this paper, we propose a novel approach to extract primary object segments in videos in the ‘object proposal’ domain. The extracted primary object regions are then used to build…
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Low-Light NV-CMOS Image Sensors for Day/Night Imaging
SRI’s new NV-CMOS™ image sensor technology is designed to capture images over the full range of illumination from bright sunlight to overcast starlight.
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Recognizing Activities Via Bag of Words for Attribute Dynamics
In this work, we propose a novel video representation for activity recognition that models video dynamics with attributes of activities. A video sequence is decomposed into short-term segments, which are…
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An Embedded Vision Services Framework for Heterogeneous Accelerators
This paper describes an architecture framework using heterogeneous hardware accelerators for embedded vision applications.
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3D Visual Proxemics: Recognizing Human Interactions in 3D from a Single Image
We present a unified framework for detecting and classifying people interactions in unconstrained user generated images.
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Motion Adaptive Signal Integration-High Dynamic Range (MASI-HDR) Video Processing for Dynamic Platforms
SRI’s MASI-HDR (Motion Adaptive Signal Integration-High Dynamic Range) is a novel technique for generating blur-reduced video using multiple captures for each displayed frame while increasing the effective camera dynamic range…
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On the Applicability of Speaker Diarization to Audio Indexing of Non-Speech and Mixed Non-Speech/Speech Video
This paper explores how unsupervised audio segmentation systems like speaker diarization can be adapted to automatically identify low-level sound concepts similar to annotator defined concepts and how these concepts can…
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Synthesis and Thermoluminescence Characteristics of Gamma and Proton Irradiated Nanocrystalline MgB4o7: Dy, Na
This paper investigates the use of nanocrystalline MgB4O7: Dy, Na thermoluminescent (TL) dosimeter synthesized by the combustion method for the assessment of proton beam and gamma radiation doses, primarily on…
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Algorithms for Geodesics
Algorithms for the computation of geodesics on an ellipsoid of revolution are given. These provide accurate, robust, and fast solutions to the direct and inverse geodesic problems and they allow…