Influence of Neighborhood Size and Cross-Correlation Peak-Fitting Method on Location Accuracy

• Published in: Sensors (Basel, Switzerland) Vol. 20; no. 22; p. 6596
• Main Authors: Tomás, María-Baralida, Ferrer, Belén, Mas, David
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 18.11.2020; MDPI
• Subjects: Accuracy; Algorithms; Aliasing; Bias; Cross correlation; Domains; Error analysis; Gaussian fitting; Low pass filters; Neighborhoods; Noise; peak-locking; polynomial fitting; subpixel; thin-plate splines

A known technique to obtain subpixel resolution by using object tracking through cross-correlation consists of interpolating the obtained correlation function and then refining peak location. Although the technique provides accurate results, peak location is usually biased toward the closest integer...