Model-Independent Lens Distortion Correction Based on Sub-Pixel Phase Encoding

• Published in: Sensors (Basel, Switzerland) Vol. 21; no. 22; p. 7465
• Main Authors: Xiong, Pengbo, Wang, Shaokai, Wang, Weibo, Ye, Qixin, Ye, Shujiao
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 10.11.2021; MDPI
• Subjects: Accuracy; Calibration; camera calibration; Cameras; fringe pattern; LCDs; Liquid crystal displays; Mathematical models; Measurement techniques; Methods; model-independent method; phase encoding; Sensors

Lens distortion can introduce deviations in visual measurement and positioning. The distortion can be minimized by optimizing the lens and selecting high-quality optical glass, but it cannot be completely eliminated. Most existing correction methods are based on accurate distortion models and stable...