摘要
为了提高自动对焦的实时性与精确性,提出了两项措施,即:利用视网膜具有空间变化分辨力的特性来确定图像处理区域;根据清晰度评价函数具有单峰曲线的特点,采用单向搜索的爬山算法来确定最佳对焦位置。该措施在快速处理图像的基础上能较为精确地找到焦点位置。
To enhance the velocity and definition of auto-focusing, some effective methods are put forward based on the principle that retina owns the space variation of resolution to draw the image area. In addition, based on the characteristic of singlet curve of sharpness function, the best focus position is found by the unidirectional hill-climbing research. It may not only process image rapidly but also find the correct focus position.
出处
《天津工程师范学院学报》
2007年第2期11-15,共5页
Journal of Tianji University of Technology and Education
基金
教育部科学技术研究重点项目(02012)
关键词
自动对焦
空间变化分辨力
清晰度函数
爬山算法
auto-focusing
space variation of resolution
sharpness function
hill-climbing research
