Spatially-Varying Autofocus

Conventional photo and its confined focal plane (b) All-In-Focus photo and its spatially-varying autofocused focal surface (ours) Conventional photo Autofocused All-In-Focus photo Conventional focal plane Autofocused focal surface far depth near depth far depth near depth Figure 1. Spatially-varying autofocus to produce an optical all-in-focus image. Left: A conventional photo with a regular lens, where objects at a single focal plane appear sharp. Right: An all-in-focus photo captured through spatially-varying autofocusing. To achieve this, we combine (i) a programmable lens with spatially-varying control over focus, and (ii) a spatially-varying autofocus algorithm to drive the focus of this lens. Note that this is an optically-captured image of a real scene with no post-capture processing used.