Analysis and optimization of a high dynamic range video method

Sintes Marcos, Joan

Analysis and optimization of a high dynamic range video method

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Citation

Sintes Marcos, J. Analysis and optimization of a high dynamic range video method. 2017. handle: http://hdl.handle.net/10230/32923

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Abstract

This work presents an optimization of a computationally expensive technique to generate high resolution high dynamic range videos from images alternating pairs of rows taken under different ISO values. This technique generates two single full-frame images, one for each ISO value and combines them to obtain a single high dynamic range image without the presence of ghosting artifacts. Different optimization techniques and parallel programming are used to reduce the initial execution time while preserving the same quality result. This work also presents an analysis of the different image-dependent parameters used in the algorithm as well as the effect of choosing different values in order to achieve the best compromise between image quality and execution time. Finally, two versions of this approach are introduced to obtain similar visual quality results that require less computation time and both approaches are discussed and compared with the original technique.