Build Panoramas on Android Phones

The purpose of this work is to implement panorama stitching from a sequence of photos taken by cell phone camera on the Android phone system. The photos for panorama stitching are captured in a fixed linear spatial interval based on magnetic compass provided by Android cell phone. The computation is carried out either on phone or by a cloud according to the number of photos used for the panorama. The post processing methods on phone or by a cloud for panorama mosaic are similar. SURF (Speed-Up Robust Features) detection algorithm [1] is employed detect the features, and the correspondences are further discriminated by RANSAC (RANdom SAmple Consensus) algorithm [3]. By stitching photos with blending, the resultant panorama is automatically popped up after these processing steps. Our algorithm successfully automates the panorama stitching on the user end. The resultant panoramas from 3 photos computed on the Android phone takes 122 seconds, and panorama from 7 photos computed by server takes only 9 seconds.