Nitere Software
Nitere Software offers a rich implementation of Lumina's peer-reviewed camera calibration and luminance estimation methodology.
Developed in-house and built on our published method for calibrating and estimating real-world luminance from an ordinary camera. Mount it near the driver’s eye position, drive the scene, and recover a luminance map from the footage instead of stopping traffic to take spot-meter readings point by point.
We use it in our own visibility and conspicuity casework, and it is available to other practitioners who need the same kinds of measurements.
Where to find it
Open nitere.app
Estimate real-world luminance from still images and video frames. Build a calibration dataset from your own camera, fit a model, then read predicted luminance for any region you can draw — including Adrian visibility levels for a target against its background.
Visit niteresoftware.com
The software practice and its background. Company information and the peer-reviewed science the toolkit is built on, authored by the same engineers.
The science underneath
Nitere is an ergonomic wrapper around our research. The calibration and estimation methods it applies are published, and the authors are the engineers on this site.
Suway, J., Suway, S.
SAE Technical Paper
In this paper, the authors present a methodology for calculating luminance from a digital video camera. The methodology allows the user to mount a camera near the driver’s eye location and drive through a scene capturing video; still images are then exported and analyzed to create a luminance map. The resulting estimates were compared to values measured with a Konica Minolta LS-100 and shown to be repeatable and accurate across an entire scene.
Suway, J., Suway, S.
SAE Technical Paper
In this paper, the authors update this methodology for calculating luminance from a digital camera. The updated calibration method results in more accurate luminance estimation over the entire range of the camera’s sensor, particularly in low-light conditions. Further refinements to the fitting methodology result in a robust calibration even in the presence of measurement noise. The methodology allows for the user to mount a camera near the driver’s eye location and to drive through a scene capturing video or still images, which are then analyzed to create a luminance map.
Contact us for details on our calibration services.
