Accurate 3D Surface Reconstruction for Smart Farming Application with an Inexpensive Shape from Focus System

Figure 7

Restored 3D shape of real objects with noise variance 0.05. Real cone object (a–c), TFT-LCD cell (d–f), and Lincoln head on US (g–i). Traditional method (a, d, g), SFF.PCA (b, e, h), and the proposed method (c, f, i).

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