Isometric serial images of well wall inner surface can be obtained by lateral Multi-lens video logging equipment designed originally by us, a kind of panoramic image mosaic method is presented for panoramic image mosaic, which is based on phase correlation and edge gradient feature. Firstly, identify the registration area of adjacent images, then use phase correlation and edge gradient feature to match the areas twice so as to get accurate mosaic point and mosaic the isometric serial images. Experiment and simulation results show that mosaic accuracy is able to reach pixel level; mosaic time is short; images of well wall inner surface can be mosaiced quickly at real time.
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