Skip to yearly menu bar Skip to main content


Coherence As Texture – Passive Textureless 3D Reconstruction by Self-interference

Wei-Yu Chen · Aswin C. Sankaranarayanan · Anat Levin · Matthew O’Toole

Arch 4A-E Poster #82
award Highlight
[ ]
Fri 21 Jun 5 p.m. PDT — 6:30 p.m. PDT


Passive depth estimation based on stereo, defocus, or shading relies on the presence of the texture on an object to resolve its depth. Hence, recovering the depth of a textureless object---for example, a large white wall---is not just hard but perhaps even impossible.Or is it? We show that spatial coherence, a property of natural light sources, can be used to resolve the depth of a scene point even when it is textureless. Our approach relies on the idea that light scattered off a scene point is fully coherent with itself, while incoherent with others; we use this insight to design an optical setup that uses self-interference as a criterion for estimating depth. Our lab prototype is capable of resolving depths of textureless objects in sunlight as well as indoor lights.

Live content is unavailable. Log in and register to view live content