A review of IEEE P2020 noise metrics

Abstract

The IEEE P2020 standard addresses fundamental image quality attributes that are specifically relevant to cameras in automotive imaging systems. The Noise standard in IEEE P2020 is mostly based on existing standards on noise in digital cameras. However, it adjusts test conditions and procedures to make them more suitable for cameras for automotive applications, such as use of fisheye lenses, 16-32 bit data format in operation in high dynamic range (HDR) mode, HDR scenes, extended temperature range, and near-infrared imaging. The work presents methodology, procedures and experimental results that demonstrate extraction of camera characteristics from videos of HDR and other test charts that are recorded in raw format, including dark and photo signals, temporal noise, fixed-pattern noise, signal-to-noise ratio curves, photon transfer curve, transaction factor and effective full well capacity. The work also presents methodology and experimental results for characterization of camera noise in the dark array and signal falloff.