The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Voi. XXXVII. Part B3b. Beijing 2008
678
8
110.0
130.0
121.0
131.0
9
138.0
148.0
148.0
149.0
10
162.0
148.0
171.0
149.0
11
157.0
148.0
167.0
149.0
12
183.5
135.5
194.5
136.5
13
108.0
148.0
118.0
149.0
14
187.5
131.5
197.5
132.5
15
172.0
128.0
182.0
129.0
Table 1 Image matching coordinate at time t ] and
© Using the matching result of step® to do stereo matching
with corresponding images respectively, according to the
matching result (coordinate) in the former moment to search
corresponding feature points of the other sequence images at
same time with the purposefully. Double matching restriction
will be come true. Figure 5 and6 are the stereo matching result
of corresponding images in different sequence at time /, and t 2
apart. Table 2 and 3 are the corresponding matching coordinate
files apart.
Figure5 Different sequence stereo matching at time/,
Pixel
X
Y
X'
Y'
1
129.0
150.0
158.0
148.0
2
133.0
152.0
162.0
150.0
3
127.0
153.0
156.0
151.0
4
160.0
126.0
190.0
123.0
5
157.0
126.0
187.0
123.0
6
180.0
136.0
211.0
132.0
7
153.0
149.0
183.0
146.0
8
110.0
130.0
139.0
129.0
9
138.0
148.0
168.0
146.0
10
162.0
148.0
193.0
144.0
11
157.0
148.0
187.0
145.0
12
108.0
148.0
136.0
147.0
13
172.0
128.0
203.0
124.0
Table2 Stereo image matching coordinate at time /,
7
163.0
150.0
193.0
146.0
8
121.0
131.0
151.0
129.0
9
148.0
149.0
178.0
146.0
10
171.0
149.0
202.0
145.0
11
167.0
149.0
198.0
145.0
12.
118.0
149.0
147.0
148.0
13
182.0
129.0
213.0
125.0
Table3 Stereo image matching coordinate at time
©Based on the camera calibration parameters to calculate
object-side spatial coordinates at time /, and /-> which
correspond with table 2 and 3. The result is shown in table 4
and 5.
Number
X(dm)
Y (dm)
Z(dm)
1
1.499
1.007
-0.128
2
1.435
1.074
-0.078
3
1.516
0.957
-0.065
4
1.041
1.626
-0.681
5
1.089
1.573
-0.682
6
0.613
1.896
-0.514
7
1.075
1.418
-0.178
8
1.809
0.713
-0.597
9
1.291
1.139
-0.209
10
0.867
1.546
-0.249
11
1.016
1.493
-0.198
12
1.860
0.642
-0.159
13
0.770
1.788
-0.688
Table4 Spatial coordinates of
moving object feature points at time t ]
Number
X (dm)
Y (dm)
Z(dm)
1
1.266
1.146
-0.143
2
1.213
1.222
-0.097
3
1.284
1.097
-0.079
4
0.886
1.803
-0.664
5
0.935
1.752
-0.664
6
0.374
2.022
-0.548
7
0.926
1.601
-0.156
8
1.587
0.887
-0.605
9
1.152
1.328
-0.181
10
0.719
1.698
-0.226
11
0.784
1.629
-0.226
12
1.639
0.791
-0.166
13
0.602
1.953
-0.669
Table5 Spatial coordinates of
moving object feature points at time t 2
Figureó Different sequence stereo matching at time
Pixel
X
Y
X'
Y'
1
139.0
151.0
169.0
149.0
2
143.0
153.0
173.0
150.0
3
137.0
154.0
167.0
152.0
4
170.0
127.0
200.0
123.0
5
167.0
127.0
197.0
123.0
6
190.0
137.0
222.0
132.0
Feature points’ matching is get from correlation method,
relaxation method in the process of finishing the move object
feature points. Those methods use the elicitation knowledge
such as the similar gray. At the same time because there are
certain rotate angle and camera measure errors between left and
right images, that the same point position in left image is
different from the right image, and it can cause perspective
projection errors. Moreover there are little difference between
parameter in left camera and right camera, so the related points’
gray are not completely the same, it cause no-adjust errors etc.