we've added a "regexp"-box to the form to find series or automatas of characters in strings to use regexps as defined by the MySQL 4.x definition (done against the entire search query made by aol users but only against words). A "word" is a query element
We propose a joint optical flow and principal component analysis (PCA) method for motion detection. PCA is used to analyze optical flows so that major optical flows corresponding to moving objects in a local window can be better extracted. This joint approach can efficiently detect moving objects and more successfully suppress small turbulence. It is particularly useful for motion detection from outdoor videos with low quality. It can also effectively delineate moving objects in both static and dynamic background. Experimental results demonstrate that this approach outperforms other existing methods by extracting the moving objects more completely with lower false alarms.
P. Wu, Y. Lee, H. Tseng, H. Ho, M. Yang, and S. Chien. 2017 IEEE International Symposium on Mixed and Augmented Reality (ISMAR-Adjunct), page 186-191. IEEE Computer Society, (2017)
P. Wu, R. Wang, K. Kin, C. Twigg, S. Han, M. Yang, and S. Chien. Proceedings of the 30th Annual ACM Symposium on User Interface Software and Technology, page 365--374. New York, NY, USA, ACM, (2017)