ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-3/W4, 223-230, 2015
https://doi.org/10.5194/isprsannals-II-3-W4-223-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
11 Mar 2015
IMPROVING THE ACCURACY OF ESTIMATED 3D POSITIONS USING MULTI-TEMPORAL ALOS/PRISM TRIPLET IMAGES
J. Susaki and H. Kishimoto Department of Civil and Earth Resources Engineering, Graduate School of Engineering, Kyoto University, Japan
Keywords: ALOS/PRISM, DSM, triplet images, RPC model, Multi-temporal images Abstract. In this paper, we present a method to improve the accuracy of a digital surface model (DSM) by utilizing multi-temporal triplet images. The Advanced Land Observing Satellite (ALOS) / Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) measures triplet images in the forward, nadir, and backward view directions, and a DSM is generated from the obtained set of triplet images. To generate a certain period of DSM, multiple DSMs generated from individual triplet images are compared, and outliers are removed. Our proposed method uses a traditional surveying approach to increase observations and solves multiple observation equations from all triplet images via the bias-corrected rational polynomial coefficient (RPC) model. Experimental results from using five sets of PRISM triplet images taken of the area around Saitama, north of Tokyo, Japan, showed that the average planimetric and height errors in the coordinates estimated from multi-temporal triplet images were 3.26 m and 2.71 m, respectively, and that they were smaller than those generated by using each set of triplet images individually. As a result, we conclude that the proposed method is effective for stably generating accurate DSMs from multi-temporal triplet images.
Conference paper (PDF, 2380 KB)


Citation: Susaki, J. and Kishimoto, H.: IMPROVING THE ACCURACY OF ESTIMATED 3D POSITIONS USING MULTI-TEMPORAL ALOS/PRISM TRIPLET IMAGES, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., II-3/W4, 223-230, https://doi.org/10.5194/isprsannals-II-3-W4-223-2015, 2015.

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