Obtaining a noise-free image based on an analysis of an unstabilized video sequence under conditions of a probable optical flow failure

摘要

In the paper we described a method for video sequence processing, which is resistant to shifts of an optical sourceunder noisy conditions of video sequence individual frames. The noisiness of frames means blurring of individual framesof a video sequence due to sharp shifts of an optical source, data transfer artifacts or zoom operation during autofocus andconsequently - as a result some defocused images series can be obtained.The novelty of the method lies in the combination of the approach of analyzing descriptors of local features of theimage of graph algorithms and extrapolating the values of the camera offset by the least squares method at the momentsof noise in the individual frames of the video sequence. We have depicted several experimental research results of theproposed method and a numerical comparison of qualitative characteristics with the existing ones.