Structured-Light 3D Scanning Technique Using Dual Pseudorandom Arrays


The accurate and dense real-time acquisition of three-dimensional (3-D) data using a low-cost structured light system remains an ongoing topic in the computer vision community, as it is difficult to achieve all these features simultaneously. Among several techniques, the pseudorandom array technique is widely used in real-time 3-D scene capturing, as it tends to concentrate the entire coding scheme into a single pattern. However, existing pseudorandom array decoding methods cannot decode a given symbol in real time when missing neighbors exist. As a solution, we propose a dual pseudorandom array encoding and decoding method and a hole-filling method, which can improve the reconstruction accuracy and time. We experimentally compared our method with several others to verify that our method captures 3-D scenes quickly and densely.

Binary and Color Pattern Encoding Process

Proposed Dual Pseudorandom Pattern


  • Udaya Wijenayake, and Soon-Yong Park. “Dual pseudorandom array technique for error correction and hole filling of color structured-light three-dimensional scanning.” Optical Engineering 54.4 (2015): 043109-043109.