Registration of Aerial Imagery and Aerial L1DAR Data Using Centroids of Plane Roof Surfaces as Control Information  

Oleh:

Tae-Suk, Kwak ; Ki-Yun Yu ; Lee, Byoung-Kil ; Yong-Il, Kim

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: KSCE Journal of Civil Engineering vol. 10 no. 5 (2006), page 365-370.
Topik: registration; common feature; centroid; control information

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: KK25.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

This study proposes using centroid of the plane roof surface of a building as control information for registering the aerial imagery relative to the aerial LiDAR data. A majority of the roofs in South Korea are plane roofs. The centroid of the plane roof is extracted from aerial imagery by using the Canny Edge Detector and from aerial LiDAR data by using Local Maxima Filtering. These extracted centroids from LiDAR data are used as control information and exterior orientation parameters of aerial imagery are estimated. Also, exterior orientation parameters of aerial imagery are estimated by using GCPs and the accuracy of registration is evaluated. From the experimental results, the positional accuracy satisfied the error range of 1/5,000 digital map which was prescribed by National Geographic Information Institute of South Korea. From this study, it is found that centroid could be useful source of control information.

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