Thermic distortions in target tracking with subpixel accuracy

David Mas; María-Baralida Tomás; Belén Ferrer

doi:10.1117/12.3015434

18 June 2024 Thermic distortions in target tracking with subpixel accuracy

David Mas, María-Baralida Tomás, Belén Ferrer

Proceedings Volume 12998, Optics, Photonics, and Digital Technologies for Imaging Applications VIII; 1299817 (2024) https://doi.org/10.1117/12.3015434
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Conference Poster

Abstract

Achieving subpixel accuracy in object tracking presents significant advantages for motion and deformation analysis. While accuracies exceeding 0.01 pixels are attainable under optimal conditions, sustaining these conditions is often limited to short durations. The heating of devices can induce sensor and housing expansion, resulting in image distortions. In this study, we investigate thermal effects by capturing static sequences of a binary target comprising a matrix of circles. Images were captured every two minutes over a 15-hour period. Subpixel tracking of image drifts and deformations was achieved by locating the centroid of each circle. We evaluated the performance of a Basler Ace2 camera both in its standard configuration and with a heat sink accessory, demonstrating the effectiveness of the heat sink in reducing stabilization time and minimizing drift and distortions. Our findings indicate that while incorporating a heat sink offers advantages, potential drawbacks must also be considered.

Citation Download Citation

David Mas, María-Baralida Tomás, and Belén Ferrer "Thermic distortions in target tracking with subpixel accuracy", Proc. SPIE 12998, Optics, Photonics, and Digital Technologies for Imaging Applications VIII, 1299817 (18 June 2024); https://doi.org/10.1117/12.3015434

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