Publikation
Simultaneous Bi-Directional Structured Light Encoding for Practical Uncalibrated Profilometry
Torben Fetzer; Gerd Reis; Didier Stricker
In: International Conference on Computer Analysis of Images and Patterns. International Conference on Computer Analysis of Images and Patterns (CAIP-2021), September 28-30, Online, Springer LNCS, 2021.
Zusammenfassung
Profilometry based on structured light is one of the most popular
methods for 3D reconstruction. It is widely used when high-precision and dense
models, for a variety of different objects, are required. User-friendly procedures
encode the scene in horizontal and vertical directions, which allows a unique
description of points in the scene. The resulting encoding, can be used to autocalibrate
the devices used. Thus, any consumer or industrial cameras or projectors
can be supported and the procedure is not limited to pre-calibrated setups. This
approach is extremely flexible, but requires a large number of camera acquisitions
of the scene with multiple patterns projected. This paper presents a new approach
that encodes the scene simultaneously in horizontal and vertical directions using
sinusoidal fringe patterns. This allows to almost halve the number of recorded images,
making the approach attractive again for many practical applications with
time aspects.