| The architecture of a stereo image based System to measure tree geometric parameters |
| Paper ID : 1090-SMPR |
| Authors: |
|
Melika Bayat1, Hooman Latifi *2, Ali Hosseininaveh3 1Department of Photogrammetry and Remote Sensing Faculty of Geodesy and Geomatics K. N. Toosi University of Technology 2Dept. of Photogrammetry and Remote Sensing
Faculty of Geodesy and Geomatics Engineering
K. N. Toosi University of Technology 3Department of Photogrammetry and Remote Sensing Faculty of Geodesy and Geomatics Engineering K. N. Toosi University of Technology |
| Abstract: |
| Stereo photogrammetry enables collecting precise and detailed three-dimensional data of terrestrial objects. The estimation of qualitative and quantitative tree attributes, in particular those related to geometric measures, is crucial for forest management. In this study, a stereo imaging system is designed in order to measure a set of geometric attributes of urban trees such as crown dimensions, height and diameter at multiple levels. The system consists of two hardware and software components. The hardware comprises two cameras with a specified baseline, two raspberry pi 3 model B+ boards, a GPS, an IMU and a power bank, all embedded in a box. The software includes a connection between the camera and the raspberry pi 3 in each side as well as data transfer to a laptop. The calibration is conducted in laboratory prior to applying the system and leads to achieve a disparity image from a pair of stereo imagery which is then processed to extract dense point clouds. The system enables measuring basic, yet elementary tree attributes such as height(s) and diameter in real-time basis. The entire process is conducted by means of drastic libraries in an operating system. Apart from being convenient and real-time, the system is associated with the potential for timely and precise measurements, which enable comparative analysis against other existing remote measurement systems as well as reference field data. |
| Keywords: |
| Point clouds, Robotic Photogrammetry, Tree Geometric parameters, Urban Tree, 3D Modelling |
| Status : Conditional Accept (Oral Presentation) |
