1. Abdel-Hakim, A.E., Farag, A.A., 2006. CSIFT: a SIFT descriptor with color invariant characteristics. In: Computer Vision and Pattern Recognition, 2006 IEEE Computer Society Conference on, vol. 2, pp. 1978–1983.
2. Geospatial entropy;Batty;Geogr. Anal.,1974
3. BoofCV, 2017. Available online: .
4. Bundy, A., Wallen, L., 1984. Difference of gaussians. In: Catalogue of Artificial Intelligence Tools. Springer, Berlin, Heidelberg, pp. 30-30.
5. LIBSVM: a library for support vector machines;Chang;ACM Trans. Intell. Syst. Technol.,2011