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Photo Sequencing
Tali Basha1, Yael Moses2, and Shai Avidan1
1Tel Aviv University, Tel Aviv 69978, Israel
talib@eng.tau.ac.il
avidan@eng.tau.ac.il
2The Interdisciplinary Center, Herzliya 46150, Israel
yael@idc.ac.il
Abstract. Dynamic events such as family gatherings, concerts or sports events are often captured by a group of people. The set of still images obtained this way is rich in dynamic content but lacks accurate temporal information. We propose a method for photo-sequencing – temporally ordering a set of still images taken asynchronously by a set of uncalibrated cameras. Photo-sequencing is an essential tool in analyzing (or visualizing) a dynamic scene captured by still images. The first step of the method detects sets of corresponding static and dynamic feature points across images. The static features are used to determine the epipolar geometry between pairs of images, and each dynamic feature votes for the temporal order of the images in which it appears. The partial orders provided by the dynamic features are not necessarily consistent, and we use rank aggregation to combine them into a globally consistent temporal order of images. We demonstrate successful photo sequencing on several challenging collections of images taken using a number of mobile phones.
LNCS 7577, p. 654 ff.
lncs@springer.com
© Springer-Verlag Berlin Heidelberg 2012