Some enhancement in processing aerial videography data for 3D corridor mapping
Rokhmana, Catur Aries
Aerial videography technique has some interesting advantages if it be applied in the corridor mapping system, such as: low-cost, fast in production, simply in operation, and adaptable (meet the need) in area with corridor shape. Obviously, there is not much attention to use it in practice (specially in Indonesia), because there are some limitations in the final product in contrast with conventional aerial photography. Some of it such as low-spatial resolution, less accuracy in orthophoto product, and can not produce 3D. This paper tries to solve those limitations by enhancement in processing. Several enhancements in processing aerial videography data will explain to reduce the limitation. Some of those are camera calibration, point-matching, sub-pixel enhancement, near-orthomosaic formation, and 3D viewing. The data is a video movie in PAL-VCD format with low resolution pixel size (288 x 352 pixel). It is assumed can be represent a low cost and limitation in production. The two real data as an example take in KalimalanggBekasi (by cessna plane) and East- Kalimantan (by piper plane) will show the result of enhancement. The results show the nearorthomosaic image with sharp image and also an anaglyph 3D viewing for some selected corridor area.
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