1. Jang, C.-J., Lee, J.-Y., Lee, J.-W., Cho, H.-G.: Smart management system for digital photographs using temporal and spatial features with EXIF metadata. In: Proceedings of 2nd International Conference on Digital Information Management, pp. 110–115 (2007)
2. Carboni, D., Sanna, S., Zanarini, P.: GeoPix: image retrieval on the geo web, from camera click to mouse click. In: Proceedings of the 8th conference on Human–computer interaction with mobile devices and services, pp. 169–172 (2006)
3. GAO: GLOBAL POSITIONING SYSTEM: significant challenges in sustaining and upgrading widely used capabilities. United States Government Accountability Office (2009)
4. Cozman, F., Krotkov, E.: Robot localization using a computer vision sextant. In: Proceedings of IEEE International Conference on Robotics and Automation, pp. 106–111 (1995)
5. Trebi-Ollennu, A., Huntsberger, T., Cheng, Y., Baumgartner, E.T.: Design and analysis of a sun sensor for planetary rover absolute heading detection. IEEE Trans. Robotics. Autom. 17(6), 939–947 (2001)