End-to-end linearity considerations for photon-limited detection and display systems

Rodney Shaw

doi:10.1117/12.487941

5 June 2003 End-to-end linearity considerations for photon-limited detection and display systems

Rodney Shaw

Proceedings Volume 5030, Medical Imaging 2003: Physics of Medical Imaging; (2003) https://doi.org/10.1117/12.487941
Event: Medical Imaging 2003, 2003, San Diego, California, United States

Abstract

End-to-end system studies in the digital acquisition of photon-limited images inevitably lead to the question of setting technical design goals in order to achieve overall linearity. But this itself poses the specific question of which key print/display variables should, in ideal circumstances, be linear with which key scene-acquisition parameters. Within the digital context, intuitive answers gleaned from traditional analog approaches to this question can vary from the confusing to the misleading, and digital attempts at direct emulation of analog systems may in fact off-set the potential advantages implicit in the newer digital technologies. The author has used a digital end-to-end signal-to-noise ratio model to consider some aspects of this linearity question, and to offer solutions based on the combination of SNR optimization appropriate during image acquisition, and the human visual-response characteristics appropriate during display. Some results and conclusions are discussed here, especially those relating to the optimum digital strategy for scene-acquisition.

Citation Download Citation

Rodney Shaw "End-to-end linearity considerations for photon-limited detection and display systems", Proc. SPIE 5030, Medical Imaging 2003: Physics of Medical Imaging, (5 June 2003); https://doi.org/10.1117/12.487941

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