多项式插值法处理物体的三维立体成像

Use interpolation method to dispose of three dimensional imaging

客观世界是三维的,随着社会的发展,目前常用的二维平面显示在某些方面已不能满足人类的需求,人们希望能真实地还原显示出空间的三维信息。采用直射式激光三角测距法,借助STM32微处理器及高分辨率线阵CCD模块测量微位移,最后将采集到的数据传送给电脑,借助LabVIEW等软件实现对三维物体的还原成像。但由于测量的系统误差使得所成像为一系列由离散点组成的螺旋线,并不能完全反应物体的真实形态。考虑到这点,采用多项式插值法在已采集到的点基础上,通过构造函数来填充那些未被采集到的点,尽可能的还原物体。经实验,成功实现了对存在凸起、凹陷、贯穿等不规则物体的成像。该处理方法以其精度高,还原度好等优点在工业测量及模具成型等方面具有广阔前景。

The objective world is the world of 3D,with the development of the society,the commonly used twodimensional graphic display that can＇t meet the needs of human beings in some ways,people hope to be able to truly show the information of 3Dspace.The direct type laser triangulation ranging method is adopted,with the aid of STM32 microprocessor and high resolution linear CCD module measurement of micro displacement,finally the data collected will be transmitted to the computer,achieved 3Dimaging display by softwares such as LabVIEW.But due to the system error of the measurement of the imaging as a series of helix is composed of discrete points,does not fully reflect the true form of object.Considering that the polynomial interpolation is adopted in has collected some basis,through constructing a function to fill those who have not been collected,as far as possible,the reduction of the object.After the test,the successful implementation of the convex,concave,irregular objects,such as through imaging.The processing method for its high accuracy,as well as good reduction degree in industrial measurement and molding has broad prospects.