计算机工程与应用Issue(20)：150-152,221,4.DOI:10.3778/j.issn.1002-8331.1201-0009
超大视场自适应快速对焦算法
Large view adaptive fast focus algorithm
摘要
Abstract
In order to meet the requirements of fast autofocus in focusing systems for rapid detection, a new adaptive focusing algorithm based on DFF is put forward. The algorithm uses coarse focus and precise focus with the two adaptive focusing strate-gies in different regions to achieve adaptive search to select the best evaluation function aiming to achieve autofocus. Experimental results show that the algorithm to maintain the premise of focusing accuracy can quickly focus on a large scale, and choose areas of interest to achieve accurate focus locally, and ultimately the average focusing time is less than 0.5 s, the success rate of one-time focus is 95%, to meet the focusing system for high-speed, high-precision AF requirements.关键词
自动对焦/评价函数/对焦策略/感兴趣区域Key words
auto focusing/evaluation function/focusing strategy/region of interest分类
信息技术与安全科学引用本文复制引用
王盼盼,程良伦..超大视场自适应快速对焦算法[J].计算机工程与应用,2013,(20):150-152,221,4.基金项目
广东省教育部产学研结合项目（No.2009B090300242）；广东省中国科学院全面战略合作项目（No.2010A090100030）。 （）
