[1] Le DS, Thoma G R, Wechsler H. Automated page orientation and skew angle detection for binary document images [J]. Pattern Recognition(S0031-3203), 1997, 27(10): 1325-1344.
[5] Krystek M. Least-square straight lines in the plane [J]. Technisches Messentm(S0171-8096), 2004, 71(1): 19-23.
[6] WU Shi-hong, LU Jing, SI Xiong. An improved bilinear interpolation algorithm of converting standard-definition television images to high-definition television images[C]// 2009 WASE International Conference on Information Engineering(ICIE), Taiyuan, China, July 10-11, 2009. Piscataway: IEEE, 2009: 441-444.
[8] BING Wang, SHAO Sheng-fan. An improved bilinear interpolation algorithm [C]// 2009 Second International Workshop on Computer Science and Engineering(WCSE 2009), Qingdao, China, October 28-30, 2009. Piscataway: IEEE, 2009: 497-500.
