オプティカルフロー補間によるクローズアップ視点合成
Close-up View synthesis by Interpolating Optical Flow
深度センサーを使わず、双方向オプティカルフローの比例補間だけで任意の仮想視点を生成し、拡大時の歪みやぼやけを抑える手法を提案した論文。
著者: Xinyi Bai, Ze Wang, Lu Yang, Hong Cheng
分類: cs.CV, cs.AI, cs.RO
原文アブストラクト
The virtual viewpoint is perceived as a new technique in virtual navigation, as yet not supported due to the lack of depth information and obscure camera parameters. In this paper, a method for achieving close-up virtual view is proposed and it only uses optical flow to build parallax effects to realize pseudo 3D projection without using depth sensor. We develop a bidirectional optical flow method to obtain any virtual viewpoint by proportional interpolation of optical flow. Moreover, with the ingenious application of the optical-flow-value, we achieve clear and visual-fidelity magnified results through lens stretching in any corner, which overcomes the visual distortion and image blur through viewpoint magnification and transition in Google Street View system.
