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The Taub Faculty of Computer Science Events and Talks

Pixel Club: Recovering Hyperspectral Signals from RGB images via Sparse Dictionary Learning
event speaker icon
Boaz Arad (Ben-Gurion University)
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Tuesday, 29.11.2016, 11:30
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EE Meyer Building 1061
Hyperspectral (HS) images or "hyperspectral data-cubes" contain radiance spectrum information at high spectral resolution for each point in the scene. Until recently, acquiring such information involved expensive, bulky equipment which required long exposure times - making HS imaging impractical for "natural" imaging (ground-level, horizontally viewed scenes). The talk will present a novel methodology, allowing high-accuracy estimation of HS information from unseen scenes using only RGB data acquired from a consumer-grade camera. This is achieved by collection of a highly generalizable HS prior and leveraging the sparsity of HS signals via overcomplete dictionaries.

(see ECCV2016: "Sparse Recovery of Hyperspectral Signal from Natural RGB Images")