1. Li, J., Li, B., Xu, Y., Lu, K., Yan K., Fei, L.: Disguised face detection and recognition under the complex background. In: IEEE Symposium on Computational Intelligence in Biometrics and Identity Management (CIBIM). Orlando, FL, USA, pp. 87–93 (2014)
2. Dalal, N., Triggs, B.: Histograms of oriented gradients for human detection. In: IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR’05). San Diego, CA, USA (2005), pp. 886–893
3. Shu, C., Ding X., Fang. C.: Histogram of the oriented gradient for face recognition. Tsinghua Sci. Technol. 44, 2122–2133 (2016)
4. Adelson, E., Anderson, C., Bergen, J., Burt P.J., Ogden, J.M.: Pyramid Methods in Image Processing. RCA Laboratories (1984)
5. Pang, Y., Zhang, K., Yuan, Y., Wang, K.: Distributed object detection with linear SVMs. IEEE Trans. Cybern. 16, 216–224 (2014)