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The applications of 3D information acquisition and 3D solid surface reconstruction are increasing in the last years. This paper presents a solution of capturing 3D information from 2D image sequence, which captures 3D information with a rotated camera. Solutions for 3D information acquisition are briefly reviewed first, and current work on 3D information acquisition from 2D image sequence is described. We consider 3D points acquisition, and describe the result based on graph-cutted by horizontal tangents from several different viewpoints. The results are many compound and smooth curves, and multi-slices, which can be used to reconstruct the solid surface. The algorithm is suitable for protuberant solid reconstruction especially.