Month: March 2020
Correcting Misleading Image Quality Measurements
We discuss several common image quality measurements that are often misinterpreted, so that bad images are falsely interpreted as good, and we describe how to obtain valid measurements.
Describing and Sampling the LED Flicker Signal
High-frequency flickering light sources such as pulse-width modulated LEDs can cause image sensors to record incorrect levels. We describe a […]
Validation Methods for Geometric Camera Calibration
Camera-based advanced driver-assistance systems (ADAS) require the mapping from image coordinates into world coordinates to be known. The process of computing […]
Measuring camera Shannon information capacity with a Siemens star image
Shannon information capacity, which can be expressed as bits per pixel or megabits per image, is an excellent figure of […]
Verification of Long-Range MTF Testing Through Intermediary Optics
Measuring the MTF of an imaging system at its operational working distance is useful for understanding the system’s use case […]
Imatest Releases Version 2020.1
Imatest, a global image quality testing solution provider, is pleased to announce Imatest 2020.1 that adds new features on top […]
Imatest Addresses Coronovirus
Imatest Customers and Partners, As the COVID-19 coronavirus continues to spread, the health and safety of our team, community, customers […]
Imatest EI Presentations Now Online
The research papers presented at this year’s Electronic Imaging Symposium (EI 2020) by Imatest engineers are now available.