Authors: Orit Skorka and Radu Ispasoiu (onsemi); Paul Romanczyk, Jackson Knappen, Norman Koren, and Jonathan Phillips (Imatest)
Presented January 22, 2024 at the IS&T Electronic Imaging Symposium 2024, in the AVM (Autonomous Vehicles and Machines) session.
Abstract
Quantification of the image sensor signal and noise is essential to derive key image quality performance indicators. Image sensors in automotive cameras are predominately activated in high dynamic range (HDR) mode, however, legacy procedures to quantify image sensor noise were optimized for operation in standard dynamic range mode. This work discusses the theoretical background and the workflow of the photon-transfer curve (PTC) test. Afterwards, it presents example implementations of the PTC test and its derivatives according to legacy procedures and according to procedures that were optimized for image sensors in HDR mode.