3D Panoramic Mosaiciking in 3D Image Image Mosaicking for Far-range Urban Area Visualization
Jaechoon Chon · Journal of the Korean Society of Civil Engineers · 2005
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 long distance areas, the ghost effect in which same objects appear repeatively occurs. To suppress such ghost effect, the long distance 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 virtual focal point. The virtual focal point is calculated by utilizing the first and last frames of the long distance range areas. We demonstrate an algorithm that creates efficient 3D panoramic mosaics without the ghost effect at the long distance area.