3 May 2011 High-dynamic range tone-mapping algorithm for focal plane processors
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Abstract
This paper presents a Dynamic Range improvement technique which is specially well-suited to be implemented in Focal Plane Processors (FPP) due to its very limited computing requirements since only local memories, little digital control and a comparator are required at the pixel level. The presented algorithm employs measurements during exposure time to create a 4-bit non-linear image whose histogram determines the shape of the tone-mapping curve which is applied to create the final image. Simulations results over a highly bimodal 120dB image are presented showing that both the highly and poorly illuminated parts of the image keep a sufficient level of details.
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S. Vargas-Sierra, G. Liñán-Cembrano, E. Roca, A. Rodríguez-Vazquez, "High-dynamic range tone-mapping algorithm for focal plane processors", Proc. SPIE 8068, Bioelectronics, Biomedical, and Bioinspired Systems V; and Nanotechnology V, 806807 (3 May 2011); doi: 10.1117/12.889448; https://doi.org/10.1117/12.889448
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