Do you have questions about using Imatest software, our test lab equipment, or image quality testing? Join our live, online Q&A session on Wednesday, June 24, from 10:00 am to 11:00 am MST. Henry Koren, Director of Engineering, will lead the discussion. To participate, please register and submit questions in advance.
Imatest Q&A Session
Image Quality Testing for Webcams
Webcams are an increasingly vital tool for working remotely and staying connected with friends and loved ones. As such, webcam sales have experienced significant growth. We all know good and bad quality images when we see them, but quantifying a camera’s performance is critical for making design choices, sourcing components, and performing quality control. Developing these devices presents challenges common to the development of consumer cameras. (more…)
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 model with a loose set of assumptions (encompassing multi-exposure HDR schemes) which can be used to define the Flicker Signal, a continuous function of time based on the phase relationship between the light source and exposure window. (more…)
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 that mapping is geometric calibration. This paper provides a series of tests that may be used to assess the goodness of the geometric calibration
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 of the major enhancements made in version 5.2. This new release further enhances the software with stability updates and regular improvements. See the Imatest Change Log for details.
Imatest Addresses Coronovirus
Imatest Customers and Partners,
As the COVID-19 coronavirus continues to spread, the health and safety of our team, community, customers and partners are our top priority. In accordance with recommendations from U.S. Centers for Disease Control and Prevention (CDC ); the World Health Organization (WHO); and local, state and federal governments, Imatest is taking steps to help prevent it spreading further and to minimize the impact. (more…)
Imatest Announces the New Collimator Fixture
Imatest introduces its new Collimator Fixture, which can test your imaging system at distances up to infinity — all within the limited space of a test lab.
Imatest developed this relay lens system for R&D to help its customers test at hyperfocal distances within a limited space. (more…)
Imatest Announces the new MTS Reflective Module
Imatest is now offering the MTS Reflective Module, which is an add-on to the Imatest Modular Test Stand. The easy-to-use Module is designed to work with Kino Flo Freestyle 31 lights and reflective charts. (more…)
Imatest is Attending Electronic Imaging 2020
Imatest is attending Electronic Imaging 2020 in Burlingame, California on January 26-30, 2020. The symposium brings together 17 technical conferences covering all aspects of electronic imaging. (more…)
Imatest and Furonteer Collaboration Finalist for Best Validation/Simulation Tool Award
BOULDER, CO -September 4, 2019—Imatest, a global image quality testing solution provider, and Furonteer, an automation equipment manufacturer, are finalists for the Best Validation/Simulation Tool Award provided by AutoSens, a forum for Advanced driver-assistance systems (ADAS) technologists. (more…)
Imatest Announces Modular Test Stand
Boulder, Colorado, August 30, 2019—Imatest, a global provider of image quality testing solutions, now offers a Modular Test Stand (MTS) that enables you to produce superior cameras while significantly reducing time spent in the lab. (more…)
Making Dynamic Range Measurements Robust Against Flare Light
Introduction
A camera’s Dynamic Range (DR) is the range of tones in a scene that can be reproduced with adequate contrast and good signal-to-noise ratio (SNR). Camera DR is often limited by flare light, which is stray light in the image, primarily caused by reflections between lens elements. Flare light reduces DR by fogging images; i.e., washing out detail in dark areas. (more…)
P2020 Automotive Engineering Technology May 2019
Imatest attended the P2020 meeting on May 13 and 14, 2019 in Ann Arbor, Michigan. Paul Romancyzk, PhD., Senior Imaging Scientist, and Rob Sumner, Lead Engineer, represented Imatest. Paul co-led the discussion on Color Separation within the Image Quality for Machine Vision subgroup.
Understanding collimator MTF loss using bronze and golden sample testing
by Henry Koren, inspired by Paul Romanczyk, edited by Norman Koren
Not all MTF measurement systems will necessarily provide the same results. The quality of the test target can impact the measurements you obtain. Long distance tests are ideally performed at the hyperfocal distance, where there is enough depth of field to have acceptable focus at infinity. (more…)