Recent mobile devices often store massive images. However, typical interfaces such as 2D display with a limited size and discrete button inputs make the browsing and manipulation of such massive images difficult and time-consuming. Expecting that a continuous input interface and a suitable 3D visualization may mitigate this difficulty, we designed and implemented an image browser that features with user motion tracking and 3D layouts, and carried out a usability study. The results showed that although intuitive and fun, the motion-tracking platform still has much room for further improvements.