摘要
基于图象的虚拟现实是实现虚拟现实系统的一种新方法．对于该方法而言，全景图的制作是至关重要的．全景图制作中的一项关键技术是颜色融合，即在拼接图象时，如何使颜色能平滑过渡．对此，本文提出了一种基于塔形结构的颜色融合算法．首先，它将图象分解成一组带通图象，然后在每一个频率带内使用不同的加权函数进行颜色融合．在每一个频率带内，加权函数的系数以及颜色融合区域的大小，是由两幅图象的图象特征在该频率带内的差异决定的．实验表明，该算法能使拼接图象的颜色平滑过渡．
We present a color blend approach for image stitching, which is used to make panoramic images. The approach is based on tower structure. At first, the images to be stitched are decomposed into a set of band-pass filtered images. Next. the images are blended with different weighed function in each frequency band. The coefficients of the weigh function and the length of the transition zone are decided by the difference scale of the two images to be stitched in each frequency band. The experiment results show tha the proposed method can make the color transit smoothly.
出处
《工程图学学报》
CSCD
1998年第4期65-74,共10页
Journal of Engineering Graphics
基金
国家自然科学基金
