RECOVERING IMAGING DEVICE SENSITIVITIES: A DATA-DRIVEN APPROACH (WA-L1)

Author(s) : Paulo Carvalho (CISUC, Portugal) Amāncio Santos (CISUC, Portugal) Pedro Martins (CISUC, Portugal)

Abstract : Recovering spectral sensitivities of imaging devices with indirect methods, as well as spectral stimuli estimation from device responses are ill-posed problems. All known methods have to rely on a priori information to constrain the solution space, which, in most situations, is difcult or even impossible to obtain. In this paper we introduce a simple and fully data-driven approach for indirect spectral sensitivity estimation. The method is built upon an extension of our previous work on Generalized Cross-Validation for constraint Tikhonov problems and utilizes a linear combination of band-limited basis functions.

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