Imaging Simulation of Airborne Linear Whiskbroom Camera

Delin Mo; Yongsheng Zhang; Tao Wang; Yan Zhang

doi:10.3788/AOS201838.0728002

Acta Optica Sinica, Volume. 38, Issue 7, 0728002(2018)

Imaging Simulation of Airborne Linear Whiskbroom Camera

Delin Mo^1,2、*, Yongsheng Zhang¹, Tao Wang¹, and Yan Zhang³

Author Affiliations

¹ Institute of Geographical Spatial Information, Information Engineering University, Zhengzhou, Henan 450001, China

² State Key Laboratory of Geo-Information Engineering, Xi'an, Shaanxi 710054, China

³ Institute of Data and Target Engineering, Information Engineering University, Zhengzhou, Henan 450001, China

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Abstract Get PDF(in Chinese)

Figures & Tables(12)

Fig. 1. Schematic of linear whiskbroom camera imaging

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Fig. 2. Calculation process of iteration photogrammetry method

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Fig. 3. Situation of iterative non-convergence of coordinate projection calculation. (a) α=θ; (b) α<θ

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Fig. 4. Improved iterative calculation method. (a) Convergent situation; (b) non-convergent situation

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Fig. 5. Basic principle of visual vector segmentation iterative calculation

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Fig. 6. Flow chart of visual vector segmentation iterative calculation

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Fig. 7. DEM thumbnails and DOM partial enlarged drawing in experimental area. (a) Plain; (b) hill; (c) mountain

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Fig. 8. Four methods of imaging simulation results. (a),(b),(c) Result of ordinary iteration calculation method; (d),(e),(f) result of improved iteration calculation method; (g),(h),(i)result of partial exhaustion method; (j),(k),(l) result of visual vector segmentation iteration coordinate projection calculation method

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Table 1. Calculation times of collinear condition equation required for different section intervals

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Table 1. Calculation times of collinear condition equation required for different section intervals

m	1	2	3	4	5	6	7	8	9	10
N	N+10	N/2+10	N/3+15	N/4+12	N/5+15	N/6+18	N/7+21	N/8+24	N/9+27	N/10+20
1	11
2	12	11
3	13	11	16
4	14	12	16	13
5	15	12	16	13	16
6	16	13	17	13	16	19
7	17	13	17	13	16	19	22
8	18	14	17	14	16	19	22	25
9	19	14	18	14	16	19	22	25	28
10	20	15	18	14	17	19	22	25	28	21
20	30	20	21	17	19	21	23	26	29	22
30	40	25	25	19	21	23	25	27	30	23
40	50	30	28	22	23	24	26	29	31	24
50	60	35	31	24	25	26	28	30	32	25
60	70	40	35	27	27	28	29	31	33	26
70	80	45	38	29	29	29	31	32	34	27
80	90	50	41	32	31	32	32	34	35	28
90	100	55	45	34	33	33	33	35	37	29
100	110	60	48	37	35	34	35	36	38	30

Table 2. Information of simulated image experimental area
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Table 2. Information of simulated image experimental area
Data set Area Topographical feature DEM sampling distance /m DOM sampling distance /m
1 Dengfeng, Henan Plain 1 0.5
2 Dengfeng, Henan Hill 1 0.5
3 Dengfeng, Henan Mountain 1 0.5

Table 3. Error statistical results of image coordinate calculated by visual vector segmentation iteration
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Table 3. Error statistical results of image coordinate calculated by visual vector segmentation iteration
Data set x direction y direction
Maximum error /pixel RMSE /pixel Maximum error /pixel RMSE /pixel
1 0.003029 0.001024 0.000021 0.000005
2 0.003268 0.002130 0.000192 0.000119
3 0.002469 0.001864 0.000149 0.000109

Table 4. Iteration time statistical results of four methods
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Table 4. Iteration time statistical results of four methods
Data set Regular iteration time /ms Improved iteration time /ms Local exhaustivetime /ms Proved method time /ms
1 352 389 395 385
2 532 462 559 469
3 3691 5464 157798 8531

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Delin Mo, Yongsheng Zhang, Tao Wang, Yan Zhang. Imaging Simulation of Airborne Linear Whiskbroom Camera[J]. Acta Optica Sinica, 2018, 38(7): 0728002

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Paper Information

Category: Remote Sensing and Sensors

Received: Jan. 22, 2018

Accepted: --

Published Online: Sep. 5, 2018

The Author Email: Mo Delin (mo@whu.edu.cn)

DOI:10.3788/AOS201838.0728002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Calculation times of collinear condition equation required for different section intervals

Table 1. Calculation times of collinear condition equation required for different section intervals

Table 2. Information of simulated image experimental area

Table 2. Information of simulated image experimental area

Table 3. Error statistical results of image coordinate calculated by visual vector segmentation iteration

Table 3. Error statistical results of image coordinate calculated by visual vector segmentation iteration

Table 4. Iteration time statistical results of four methods

Table 4. Iteration time statistical results of four methods