期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2012
卷号：12
期号：6
页码：52-61
出版社：International Journal of Computer Science and Network Security
摘要：We propose a frame rate up-conversion algorithm using bidirectional optical flow estimation at each pixel based on a previously proposed Hierarchical Optical flow Estimation (HOE) algorithm. The HOE is extended from unidirectional flow estimation to bidirectional flow estimation in which a 3��3��2 multi-dimensional filter and a motion compensated image method are used for high accuracy of flow estimation. PSNRs of 30.29?45.99 dB were obtained for five test sequences with computer simulations. The PSNR improvements are 3.50?10.99 dB compared to a simple bidirectional block matching method and 0.26?1.88 dB compared to an existing method based on a bidirectional block matching method.
