Additional Material
233
(continued)
No. State Intellectual
Property Office,
China
European Patent Office (https://www.epo.org/index.html)
Inventor(s). Title
(Grant No.)
Bibliographic
data
Webpage and abstract
7
Xu X Z, Xu F L, Liu
Y K, Wang S F. A 3D
observation method
for the scouring
terrain
(ZL201010502055.4)
CN102032902
(A)—2011-04-27
The invention discloses a three-dimensional observation method of eroded landform, belonging to the
field of topographic survey. The method is characterized by comprising the steps that: a full-plane laser
and a laser positioning spot are emitted to an eroded landform to be observed by a full-plane laser
projector and a topography image calibration device; contours are formed on the surface of the landform
by the full-plane laser, the laser positioning spot is used as a control spot for dimensional calibration and
deformational correction of topography images; the full-plane laser projector is translated or lifted by
certain steps, the landform images with different initial altitudes are acquired by an image acquisition
device and then superposed and fused via computer software, so as to realize the dense acquisition of
landform surface spots; and three-dimensional coordinates of the landform surface spots are acquired in
accordance with geometrical information of laser lines in the images to further obtain a micro-space
digital landform contour map, thus noncontact three-dimensional measurement for the eroded landform
and computational analysis for the three-dimensional model thereof are achieved. The entire system has
high observation efficiency and accuracy, and is suitable for the three-dimensional observation of
landform in river engineering model test
(continued)
233
(continued)
No. State Intellectual
Property Office,
China
European Patent Office (https://www.epo.org/index.html)
Inventor(s). Title
(Grant No.)
Bibliographic
data
Webpage and abstract
7
Xu X Z, Xu F L, Liu
Y K, Wang S F. A 3D
observation method
for the scouring
terrain
(ZL201010502055.4)
CN102032902
(A)—2011-04-27
The invention discloses a three-dimensional observation method of eroded landform, belonging to the
field of topographic survey. The method is characterized by comprising the steps that: a full-plane laser
and a laser positioning spot are emitted to an eroded landform to be observed by a full-plane laser
projector and a topography image calibration device; contours are formed on the surface of the landform
by the full-plane laser, the laser positioning spot is used as a control spot for dimensional calibration and
deformational correction of topography images; the full-plane laser projector is translated or lifted by
certain steps, the landform images with different initial altitudes are acquired by an image acquisition
device and then superposed and fused via computer software, so as to realize the dense acquisition of
landform surface spots; and three-dimensional coordinates of the landform surface spots are acquired in
accordance with geometrical information of laser lines in the images to further obtain a micro-space
digital landform contour map, thus noncontact three-dimensional measurement for the eroded landform
and computational analysis for the three-dimensional model thereof are achieved. The entire system has
high observation efficiency and accuracy, and is suitable for the three-dimensional observation of
landform in river engineering model test
(continued)