CAJ | 학술논문

目的研究自行开发的结构光投影面部三维测量系统的测量精度,探讨减少图像噪声的方法.方法通过测量已知的标定物对结构光投影面部三维测量系统参数设计值进行修正,实现系统标定,提高测量精度.同时,对图像噪声产生的原因进行分析,消除图像噪声和杂点.结果通过计算获得系统各部件参数,并对这些参数进行标定,提高了结构光投影面部三维测量系统的测量精度(0.028 mm).应用图像处理技术减小了输出图像的噪声和杂点.结论结构光投影面部三维测量系统精度高,输出图像稳定,系统临床使用可靠,可用于人体面部外形采集和重建.
목적 연구자행개발적결구광투영면부삼유측량계통적측량정도,탐토감소도상조성적방법.방법 통과측량이지적표정물대결구광투영면부삼유측량계통삼수설계치진행수정,실현계통표정,제고측량정도.동시,대도상조성산생적원인진행분석,소제도상조성화잡점.결과 통과계산획득계통각부건삼수,병대저사삼수진행표정,제고료결구광투영면부삼유측량계통적측량정도(0.028 mm).응용도상처리기술감소료수출도상적조성화잡점.결론 결구광투영면부삼유측량계통정도고,수출도상은정,계통림상사용가고,가용우인체면부외형채집화중건.
Objective To investigate the accuracy of three dimensional facial measurement system based on structured light projection, and explore the methods to reduce noise of the output images. Methods The known object for calibration was measured by the measurement system to correct the parameters of the system and enhance the measurement accuracy. The mechanism of noise was analysed, and the noise and sundry of the images were eliminated. Results The parameters of each assembly of system were obtained by calculation and calibrated, and the measurement accuracy (0.028 mm) of three dimensional facial measurement system based on structured light projection was increased. Application of image processing technology reduced the noise and sundry of output images. Conclusion The accuracy of three dimensional facial measurement system based on structured light projection is high. The image output is reliable, and can be clinically used in facial scanning and three dimensional reconstruction.