3D panoramic mosaicking to suppress the ghost effect at far-range scene for urban area visualization

Authors:
Jaechoon Chon;Eihan Shimizu;Ryosuke Shibasaki
Affiliations:
Center for Spatial Information Science at the University of Tokyo, Meguro-ku, Tokyo, Japan;Dept. of Civil Engineering, The University of Tokyo, Japan;Center for Spatial Information Science at the University of Tokyo, Meguro-ku, Tokyo, Japan
Venue:
ICCSA'06 Proceedings of the 6th international conference on Computational Science and Its Applications - Volume Part I
Year:
2006

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Abstract

3D image mosaicking is useful for 3D visualization of the roadside scene of urban area by projecting 2D images to the 3D planes. When a sequence of images are filmed from a side-looking video camera passing far-range areas, the ghost effect in which same objects appear repeatedly occurs. To suppress such ghost effect, the far-range areas are detected by using the distance between the image frame and the 3D coordinate of tracked optical flows. The ghost effects are suppressed by projecting the part of image frames onto 3D multiple planes utilizing vectors passing the focal point of frames and a vertical slit. The vertical slit is calculated by utilizing the first and last frames of the far-range areas. We demonstrated algorithm that creates efficient 3D panoramic mosaics without the ghost effect at the far-range area.