Abstract
We present in this paper a method of switching between past and present photographs seamlessly which tackles a certain problem: requisition of present photograph at the same position where anyone took a photo in the past. We first describe estimation of past position to take a present photo at the same position. After that we describe interpolating the two images to make seamless switching. Finally, we performed assessment experiments with simulation or using this system. Consequently, it appeared that our system can make seamless switching in 90% success rate.