Imatest Presented at AutoSens Europe 2024
2024-10-08 10:00 - 2024-10-10 16:45 (Europe/Berlin) | Palau De Congressos Barcelona, Avda. Diagonal, 661*671, Barcelona, Les Corts, 08028, Spain
Imatest attended AutoSens Europe on October 8-10, 2024 in Barcelona, Spain. We presented our advanced testing methods and algorithms for validating the quality of automotive cameras.
Watch On Demand AutoSens Europe Website
Virtually Visit Imatest’s Booth

Related Products
Calibrated Reference Camera for Camera Monitor System (CMS) testing with Leader SFR-Fit
Leader SFR-Fit MTF Measurement Software
Imatest Spectral Illuminance Color Sensor
SFRreg Field Ruggedized Target
ISO 12233 Edge SFR (eSFR) Inkjet chart
Event Photos

Tutorial by Norman Koren

Information Metrics for Performance and Optimization of Machine Vision Systems.
Norman Koren
Founder / CTO
We discuss the mathematical background and practical measurement techniques for a new set of image quality metrics that promise to be superior to MTF (sharpness) and noise as predictors of machine vision performance. The new metrics include Noise Equivalent Quanta (NEQ), Ideal Observer SNR (SNRi), and Edge location standard deviation (Edge σ). They can be measured from slanted edges as well as Siemens star and dead leaves (spilled coins) test chart images.¬ We cover

the origin and significance of information capacity, and its use as a fundamental metric for qualifying cameras,
the effect on measurements of common types of image processing, especially the bilateral filters found in most JPEG images,
the distinction between total information capacity and information capacity for contrast-limited patterns (typically 4:1 or 60% Michelson contrast slanted edges), which can be measured for a wide range of exposures,
obtaining the metrics for object detection (SNRi) and the object location (Edge σ),
the effects of sharpening and lowpass (noise-reduction) filtering, showing how excessive sharpening degrades performance,
design of matched filters to optimize SNRi and Edge σ for specific tasks, and tradeoffs for multiple tasks
progress in correlating the new metrics with standard machine vison performance metrics, such as Mean Average Precision (mAP) and Intersection over Union (IoU), which are related to object detection and location.

See also Image Information Metrics.
Visit Imatest’s Booth #334 for Demonstrations

Leader SFR-Fit camera resolution measurement software measures MTF (Modulation Transfer Function). MTF indicates spatial frequency characteristics using multiple distortion and uniformity-corrected sine patterns that can be presented across one or more displays.
Conventional MTF measurement methods can have issues with black box camera systems that prevent the acquisition of the RAW or minimally processed image. If these systems have sharpening enabled, slanted edges can overstate MTF, especially at high frequencies.
The SFR-Fit measurement system can produce highly accurate measurements of automotive cameras is compatible with ultra-wide-angle lenses.
Calibrated Reference Camera for Camera Monitor System (CMS) testing with Leader SFR-Fit
By using SFR-Fit Ver2.4 and a calibrated reference camera, you can measure the MTF of a CMS electronic mirror.

SFRreg Field Ruggedized Target

Watch On Demand
Previous Event: AutoSens USA 2024
