3 papers
physics.optics2026
Instrument-limited pixel-level SNR bounds from optical throughput
Jan Sova, Marie KolaÅÃková
The radiometric integral is the fundamental radiance--to--flux relation in imaging, whereas étendue is typically used as a compact system-level descriptor. For quantitative imagin…
quant-ph2025
From Ãtendue to the Lowest Fundamental SNR: Pixel Ãtendue (Optogeometric Factor) Interpreted as Mode Count
Jan Sova, Marie KolaÅÃková
The optogeometric factor, recently introduced as a pixel level form of étendue, quantifies the spatial angular throughput of a detector element. In this work its interpretation is…
physics.optics2025
Thermography Equation: From Conceptual Relation to Quantitative Formulation via the Optogeometric Factor
Jan Sova, Marie KolaÅÃková
This article presents a methodological transition from the conceptually formulated thermographic measurement equation (the so called thermography equation) to its quantitative form…