News

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…)

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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.

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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…)

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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

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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 merit for predicting camera performance for a variety of machine vision applications, including medical and automotive imaging systems.

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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 performance. (more…)

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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.

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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…)

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Imatest EI Presentations Now Online

The research papers presented at this year’s Electronic Imaging Symposium (EI 2020) by Imatest engineers are now available. (more…)

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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…)

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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…)

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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…)

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Introducing Imatest 5.2

BOULDER, CO -September 12, 2019—Imatest, a global image quality testing solution provider is pleased to announce Imatest 5.2. With this new Imatest release, the Imatest team adds several new features to provide better analysis tools and new options. (more…)

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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…)

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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…)

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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…)

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Imatest and Furonteer Reduce Camera Intrinsic Calibration Time with Automated Machines

BOULDER, CO – JUNE 25TH, 2019 — Imatest, a global image quality testing solution provider, partnered with Furonteer, an automation equipment manufacturer, in early 2019 to provide production machines for geometric calibration of single and multicamera devices. (more…)

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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.

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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…)

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Imatest will Attend AutoSens Detroit on May 14-16, 2019

Imatest will attend AutoSens in Detroit on May 14-16, 2019. AutoSens is a 3-day workshop, conference, and exhibition advancing the education for and development of vehicle perception technology. It brings together over a thousand minds in vehicle perception, ADAS, and autonomous vehicles twice a yearin Detroit, Michigan USA in May, and Brussels, Belgium in September. (more…)

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