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oai:recercat.cat:10230/282102025-12-22T13:31:13Zcom_2072_6col_2072_452952

High quality video in high dynamic range scenes from interlaced dual-ISO footage Gil Rodríguez, Raquel Bertalmío, Marcelo Imatges -- Processament Comunicació visual Comunicació presentada al IS&T International Symposium on Electronic Imaging, celebrat del 14 al 18 de febrer de 2016 a San Francisco (CA, USA) i organitzat per la Society for Imaging Science and Technology. In this paper we present a simple and affordable method to generate high quality video from a high dynamic range scene. It is performed without utilizing extra lighting, neither alternating exposures, nor operating with dual-camera set-ups. Our input is an interlaced video alternating row pairs with different ISO values, as some DSLR camera models can provide. The proposed algorithm involves two main steps: first the computation of two single-ISO full-frame images (one for each ISO value) using an inpainting-based deinterlacing method, followed by their combination into a single frame by a weighted average. This results in a high dynamic range frame, containing all the details in bright and dark areas at the same time, that is finally tone-mapped into a low dynamic range frame for display purposes. Current results show this is a practical and cost-effective method that produces outputs free of ghosting artifacts and with very little noise. This work was supported by the European Research Council, Starting Grant ref. 306337, by the Spanish government, grant ref. TIN2012-38112, and by the Icrea Academia Award. 2017-03-13T08:15:20Z 2017-03-13T08:15:20Z 2016 info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion Gil R, Bertalmío M. High quality video in high dynamic range scenes from interlaced dual-ISO footage. In: IS&T International Symposium on Electronic Imaging Science and Technology; 2016 Febr. 14-18; San Francisco (CA, USA). Springfield: IS&T; 2016. Digital Photography and Mobile Imaging XII, p. DPMI-245.1 [7 p.]. DOI: 10.2352/ISSN.2470-1173.2016.18.DPMI-245 1062-3701 http://hdl.handle.net/10230/28210 http://dx.doi.org/10.2352/ISSN.2470-1173.2016.18.DPMI-245 eng IS&T International Symposium on Electronic Imaging Science and Technology; 2016 Febr. 14-18; San Francisco (CA, USA). Springfield: IS&T; 2016. Digital Photography and Mobile Imaging XII, p. DPMI-245.1 [7 p.]. info:eu-repo/grantAgreement/EC/FP7/306337 info:eu-repo/grantAgreement/ES/3PN/TIN2012-38112 © 2016 Society for Imaging Science and Technology. Reprinted with permission of IS&T: The Society for Imaging Science and Technology sole copyright owners of Electronic Imaging, Digital Photography and Mobile Imaging XII. info:eu-repo/semantics/openAccess application/pdf application/pdf The Society for Imaging Science and Technology (IS&T)