摘要
提出了一种基于运动判断的自适应动态帧间滤波方法,利用不同帧间图像的共有图像信息部分进行累加滤波,同时又可避免因为子像素的位移引入的混叠效应,从而达到最大限度提高图像质量的目的。给出了该滤波方法的噪声方差方程,并利用该方法对采集的视频图像数据进行了处理,讨论了不同阈值下的滤波效果。
An adaptive filtering algorithm is developed to reduce the noise in image sequences, which is based on detecting motion in image sequences. This algorithm firstly judges whether there is motion in image sequences, and then accumulatively filters using the common info in image sequences. In the meantime, the overlapped image caused by the displacement of sub-pixels can be avoided to achieve the bettering of images. The noise variance equation is demonstrated here and is used to sort out the accumulated data of the video images. The filtering effects under different thresholds are also discussed here.
出处
《红外技术》
CSCD
北大核心
2004年第5期33-36,共4页
Infrared Technology
