Optimized dithering technique in frequency domain for high-quality three-dimensional depth data acquisition

Cai Ning^{1, 2}, Chen Zhe-Bo², Cao Xiang-Qun¹, Lin Bin^{1, 2, †}

Measurement results of complex 3D statue. Panels (a)–(c), (d)–(f), and (g)–(i) show the 3D results obtained respectively by using p-opt technique, i-opt technique, and proposed technique, when projector is nearly focused, slightly defocused and more defocused respectively.