Abstract: Abstract：The image stabilization method is proposed for the problems existed in the video acquired from high altitude airship platform, including removing the fog in the intra-frame images and filtering the high frequency vibration component in the inter-frame images. The image enhancement technique Retinex is adopted to remove the fog in the intra frame images. It retains the details of image, and restores the genuine color of image. And then, the four freedom global motion mode is established to estimate the global motion, and the median filter is adopted to smooth the global motion and remove the high frequency vibration component. It achieves the image stabilization in the inter-frame images. The algorithm of constructing the undefined area is given at the same time. Through the practical application, the algorithm proposed in this paper achieves the image stabilization for the video acquired from airship platform perfectly. It gets good image stabilization results in the intra-frame images and inter-frame images, which meet the requirements of monitoring and analyzing.

Key words: Keywords：Retinex algorithm, Motion Estimation, Motion Compensation, Video Stabilization