CAMERA CALIBRATION FOR 3D LEAF-IMAGE RECONSTRUCTION USING SINGULAR VALUE DECOMPOSITION

Syahputra, Hermawan and Pulungan, Reza (2017) CAMERA CALIBRATION FOR 3D LEAF-IMAGE RECONSTRUCTION USING SINGULAR VALUE DECOMPOSITION. International Journal of Advanced Computer Science and Applications(IJACSA), 08 (09). pp. 365-370. ISSN 2156-5570

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Abstract

Features of leaves can be more precisely captured using 3D imaging. A 3D leaf image is reconstructed using two 2D images taken using stereo cameras. Reconstructing 3D from 2D images is not straightforward. One of the important steps to improve accuracy is to perform camera calibration correctly. By calibrating camera precisely, it is possible to project measurement of distances in real world to the image plane. To maintain the accuracy of the reconstruction, the camera must also use correct parameter settings. This paper aims at designing a method to calibrate a camera to obtain its parameters and then using the method in the reconstruction of 3D images. Camera calibration is performed using region-based correlation methods. There are several steps necessary to follow. First, the world coordinate and the 2D image coordinate are measured. Extraction of intrinsic and extrinsic camera parameters are then performed using singular value decomposition. Using the available disparity image and the parameters obtained through camera calibration, 3D leaf image reconstruction can finally be performed. Furthermore, the results of the experimental depth-map reconstruction using the intrinsic parameters of the camera show a rough surface, so that a smoothing process is necessary to improve the depth map.

Item Type: Article
Keywords: Camera calibration; Image reconstruction; 3D leaf images; Singular value decomposition
Subjects: Q Science > QA Mathematics
Q Science > QA Mathematics > QA75.5 Electronic computers. Computer science
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Matematika
Depositing User: Mrs Harly Christy Siagian
Date Deposited: 08 May 2020 10:11
Last Modified: 09 May 2020 03:55
URI: https://digilib.unimed.ac.id/id/eprint/39267

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