This New Tech Makes Faces in Photos Look Incredibly Realistic

Researchers at Beeble AI have developed a method for improving how light and shadows can be applied to human portraits in digital images.

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Appendix

3. SwitchLight

We introduce SwitchLight, a state-of-the-art framework for human portrait relighting, with its architectural overview presented in Fig. 2. We first provide foundational concepts in Sec. 3.1, and define the problem in Sec. 3.2. This is followed by detailing the architecture in Sec. 3.3, and lastly, we describe the loss functions used in Sec. 3.4.

3.1. Preliminaries

In this section, vectors n, v, l, and h are denoted as unit vectors. Specifically, n represents the surface normal, v is the view direction, l is the incident light direction, and h is the half-vector computed from l and v. The dot product is clamped between [0 ...