Camera calibration for water-biota research: The projected area of vegetation

0Citations
Citations of this article
18Readers
Mendeley users who have this article in their library.

Abstract

Imaging systems have an indisputable role in revealing vegetation posture under diverse flow conditions, image sequences being generated with off the shelf digital cameras. Such sensors are cheap but introduce a range of distortion effects, a trait only marginally tackled in hydraulic studies focusing on water-vegetation dependencies. This paper aims to bridge this gap by presenting a simple calibration method to remove both camera lens distortion and refractive effects of water. The effectiveness of the method is illustrated using the variable projected area, computed for both simple and complex shaped objects. Results demonstrate the significance of correcting images using a combined lens distortion and refraction model, prior to determining projected areas and further data analysis. Use of this technique is expected to increase data reliability for future work on vegetated channels.

Cite

CITATION STYLE

APA

Wackrow, R., Ferreira, E., Chandler, J., & Shiono, K. (2015). Camera calibration for water-biota research: The projected area of vegetation. Sensors (Switzerland), 15(12), 30261–30269. https://doi.org/10.3390/s151229798

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free