線段投影光柵三維量測之光場補償系統

Three-Dimensional Measurement with Gratings Projection and a Compensation System

本研究之主要目的，在於提供一種線段投影彩色光柵量測之光場補償系統，其具有光場補償功能，其可以線段投影法簡單算出待測工件之高度。影像處理裝置先產生一用以投影且無光柵之影像，將該影像投影出去，利用攝影裝置擷取該影像，並傳送回影像處理裝置進行影像處理而成一帶有投影資訊之無光柵的影像，另產生一有彩色光柵之影像，並以創新方法對該影像進行補償。如此可對無光柵影像或有彩色光柵影像進行光場補償作業，使彩色光柵影像更為清楚，以對一待測工件進行更準確的三維輪廓量測與重建分析計算。

This study proposes a light field flexible compensation system offringe projection color grating measurement which uses the fringeprojection method to calculate the height of a work piece to be measured.A video device first generates an image without gratings for projection, andthen projects this image. An imaging device then captures the image andsends it back to the image processing device, so as to form an image withprojection information without gratings, as well as an image with gratings.Thus, both images with and without gratings can be clearer. In this way,more accurate 3D contouring measurement and reconstructive analyticalcalculation can be carried out for the work piece to be measured.