基于简单多重曝光融合的条纹结构光三维测量方法

To address issues such as low precision, slow speed and high hardware requirements when measuring objects with highly reflective areas using structured light, a simple multiple-exposure fusion method for structured light 3D measurement was proposed. A monochrome camera and a digital projector were employed to make rapid storage and transmission by using the projector generates composite stripes in the R. G and B channels. An algorithm for extracting high-reflectance regions automatically identified the bright areas on the object, eliminating the need for subsequent image fusion calculations on non-reflective regions. The system utilized a High Dynamic Range (HDR) adaptive fusion algorithm to automatically select and fuse images of the sinusoidal stripes captured under different projection intensities and camera exposure times, resulting in a high dynamic range composite stripe image. Based on a simple multiple-exposure fusion method, a system with a straightforward structure was constructed, which offered low cost, short stripe projection and image computation times- and a high degree of automation. Experimental results demonstrated that the proposed method could accurately measure objects with highly reflective surfaces and exhibit a degree of universality across different materials.