The Development of a Stereo Vision System to Study the Nutation Movement of Climbing Plants

Author:

Ruiz-Melero Diego Rubén1,Ponkshe Aditya2,Calvo Paco23ORCID,García-Mateos Ginés1ORCID

Affiliation:

1. Computer Science and Systems Department, University of Murcia, 30100 Murcia, Spain

2. Minimal Intelligence Laboratory (MINT Lab), University of Murcia, 30100 Murcia, Spain

3. Department of Philosophy, University of Murcia, 30100 Murcia, Spain

Abstract

Climbing plants, such as common beans (Phaseolus vulgaris L.), exhibit complex motion patterns that have long captivated researchers. In this study, we introduce a stereo vision machine system for the in-depth analysis of the movement of climbing plants, using image processing and computer vision. Our approach involves two synchronized cameras, one lateral to the plant and the other overhead, enabling the simultaneous 2D position tracking of the plant tip. These data are then leveraged to reconstruct the 3D position of the tip. Furthermore, we investigate the impact of external factors, particularly the presence of support structures, on plant movement dynamics. The proposed method is able to extract the position of the tip in 86–98% of cases, achieving an average reprojection error below 4 px, which means an approximate error in the 3D localization of about 0.5 cm. Our method makes it possible to analyze how the plant nutation responds to its environment, offering insights into the interplay between climbing plants and their surroundings.

Funder

Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia

Office of Naval Research Global

Publisher

MDPI AG

Reference22 articles.

1. Mugnai, S., Azzarello, E., Masi, E., Pandolfi, C., and Mancuso, S. (2015). Rhythms in Plants: Dynamic Responses in a Dynamic Environment, Springer.

2. The dynamics of plant nutation;Raja;Sci. Rep.,2020

3. Plant tropisms;Gilroy;Curr. Biol.,2008

4. Towards a standardization of terminology of the climbing habit in plants;Sperotto;Bot. Rev.,2020

5. Darwin, C., and Darwin, F. (1880). The Power of Movement in Plants, John Murray.

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