1. Cao, C., Chen, Z., Xie, G., Lei, S.: Key frame extraction based on frame blocks differential accumulation. In: 24th Chinese Control and Decision Conference, pp. 3621–3625, Taiyuan, 23–25 May 2012
2. Sun, Z., Jia, K., Chen, H.: Video key frame extraction based on spatial-temporal color distribution. In: International Conference on Intelligent Information Hiding and Multimedia Signal Processing, pp. 196–199, Harbin, 15–17 August 2008
3. Liu, H., Meng, W., Liu, Z.: Key frame extraction of online video based on optimized frame difference. In: 9th International Conference on Fuzzy Systems and Knowledge Discovery, pp. 1238–1242, Sichuan, 29–31 May 2012
4. Liu, H., Pan, L., Meng, W.: Key frame extraction from online video based on improved frame difference optimization. In: 14th International Conference on Communication Technology, pp. 940–944, Chengdu, 9–11 November 2012
5. Zhuang, Y., Rui, Y., Huang, T.S., Mehrotra, S.: Adaptive key frame extraction using unsupervised clustering. In: Proceedings of International Conference on Image Processing, ICIP 1998, vol. 1, pp. 866–870, Chicago, IL, 4–7 October 1998