Synthetic-Aperture Technique for High-Resolution Composite Imaging of the Inside Walls of Tubular Specimens

摘要

High-resolution survey of the inside walls of tubular specimens is a unique application of synthetic-aperture composite imaging. This article describes the data acquisition process, 3D motion estimation and compensation, image registration, and superposition for the formation of high-resolution composite images from conventional video sequences. Experiment results from the survey of an oil well are used to demonstrate the capability of the technique.