THE perspectives for application of DIGITAL PHOTOGRAMMETRic TECHNOLOGIES
for genetic STUDIES of
Trubina L.K., Ivanova U.U.
The transition of photogrammetry to digital methods of terrestrial surveys
and image processing has considerably expanded its uses. The application of digital photogrammetric technologies for genetic studies of forest
tree species objects is
considered to be perspective (Trubina, 2006).
The
results of digital terrestrial stereo photogrammetric
survey have been used to study the clones of pine ordinary on an experimental
site of V.N. Sukacheva Institute of Forest (Siberian
Branch of the
Directly
on the site, the digital terrestrial stereo photogrammetric
survey by Casio QW-3000 Ex and Sony DSC-F707 digital cameras combined with the total
station surveying were carried out. During these
works heights of trees were measured. Stereo images in different scales were
obtained for each tree from different distances. By choosing a minimal scale, a
tree was completely shown on a stereo image and occupied the whole frame. In larger
scale the only separate tree limbs were taken.
For
processing the results obtained the following software were used: Surfer, Image
3D, Photo Modeler.
More
than 50 stereo images of clones were obtained. Using them, such characteristics
of these clones have been measured as: a height of tree, trunk diameter at a different
height, a diameter and a length of limbs, as well as a quantity of limbs and
mature cones. Furthermore, a digital
elevation model (DEM) was generated to represent the location of any tree and
its height.
The
experience of using the digital terrestrial surveys to obtain the value of pine
quantitative features variability on the mentioned plantation has proved its
perspective. It is necessary to emphasize that the further experimental studies
should be carried out aimed at the increasing of efficiency of digital photogrammetric methods used for the variability analysis of
tree morphological features on genetic selective objects.
REFERENCES
1. Tarakanov V.V., Demidenko V.P., Ishutin J.N., Bushkov N.T. (2001): Breeding and Seed
Improvement of Pinus Sylvestris
in
2. Trubina L.K. (2006): Stereo Models Used for
Study of Biological Objects.