Tree Image Dataset for Biophysical Parameter Estimation using Stereoscopic Vision
Description
This dataset contains stereoscopic image pairs of trees within the Heroes Garden and surrounding parks at the Dedan Kimathi University of Technology, Nyeri, Kenya. The dataset is uploaded as a single Zip file, which upon extracting unfolds into three folders, two YAML files, two text files, and three CSV files: 1. Breast_height (folder): Contains image pairs of tree trunks wrapped with white masking tape around the circumference at the breast height position (1.3 m above the trunk base). These images can be used to study the performance of a technique/algorithm based on stereoscopic photogrammetry at locating the breast height. 2. Full_trees (folder): Contains image pairs of full trees (shorter than 6m). Using these images, an algorithm based on stereoscopic photogrammetry may be developed to extract the heights and crown diameters of these trees. 3. Trunks (folder): Contains image pairs of tree trunks belonging to 20 trees. They can be used to develop an algorithm based on stereoscopic photogrammetry to estimate the diameters at breast height (DBH) of these trees. 4. stereo_params_v1.yml (file): Contains the stereo camera parameters (in a machine-readable format) to be applied to images in the 'trunks' and 'full_trees' folders. 5. stereo_params_v2.yml (file): Contains the stereo camera parameters (in a machine-readable format) to be applied to images in the 'breast_height' folder. 6. stereo_params_v1.txt (file): Contains the stereo camera parameters (in a human-readable format) to be applied to images in the 'trunks' and 'full_trees' folders. 7. stereo_params_v2.txt (file): Contains the stereo camera parameters (in a human-readable format) to be applied to images in the 'breast_height' folder. 8. dbh_values.csv (file): Contains the ground truth values of the DBHs of the trees in the 'trunks' folder. 9. crown_diameter_values.csv (file): Contains the ground truth values of the crown diameters of the trees in the 'full_trees' folder. 10. tree_height_values.csv (file): Contains the ground truth values of the heights of the trees in the 'full_trees' folder. Before capturing the images in this dataset, camera calibration was performed using the well-known OpenCV library. For the meaning of the individual camera parameters, please refer to this article: https://docs.opencv.org/3.4.15/d9/d0c/group__calib3d.html
Files
Steps to reproduce
1. Build a stereo camera 2. Write python code for capturing left and right image pairs (Use the OpenCV library 3. Capture the images