Title :
Detailed reconstruction of 3D plant root shape
Author :
Zheng, Ying ; Gu, Steve ; Edelsbrunner, Herbert ; Tomasi, Carlo ; Benfey, Philip
Author_Institution :
Dept. of Comput. Sci., Duke Univ., Durham, NH, USA
Abstract :
We study the 3D reconstruction of plant roots from multiple 2D images. To meet the challenge caused by the delicate nature of thin branches, we make three innovations to cope with the sensitivity to image quality and calibration. First, we model the background as a harmonic function to improve the segmentation of the root in each 2D image. Second, we develop the concept of the regularized visual hull which reduces the effect of jittering and refraction by ensuring consistency with one 2D image. Third, we guarantee connectedness through adjustments to the 3D reconstruction that minimize global error. Our software is part of a biological phenotype/genotype study of agricultural root systems. It has been tested on more than 40 plant roots and results are promising in terms of reconstruction quality and efficiency.
Keywords :
biology computing; calibration; image reconstruction; 2D images; 3D plant root shape; 3D reconstruction; agricultural root systems; biological genotype study; biological phenotype study; calibration; detailed reconstruction; global error; harmonic function; image quality; jittering; reconstruction efficiency; reconstruction quality; refraction; regularized visual hull; root segmentation; Electronic mail; Harmonic analysis; Image reconstruction; Optimization; Shape; Three dimensional displays; Visualization;
Conference_Titel :
Computer Vision (ICCV), 2011 IEEE International Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4577-1101-5
DOI :
10.1109/ICCV.2011.6126475