A High Accuracy, Low Cost 3D Scanning System

3d扫描是通过捕获物体表面的x、y和z坐标，将物体的物理测量值转换为数字3d数据的过程。精确地数字化小于5立方厘米的小物件（即20微米的精度）仍然非常昂贵。虽然最近开发了低成本的扫描仪，但由于精度差和使用困难，这些扫描仪不适合捕获小而详细的物体。对于一种精确、低成本、全自动和紧凑的、能够快速数字化小物体的系统，仍然存在着强烈的需求。我们将进行一项研究，以确定开发一种基于精确图像处理的扫描系统的可行性，该系统可以捕获精度为20微米的小物体。我们建议评估一种基于相移结构光的创新技术的适用性。

3d scanning is the process of converting physical measurements of an object into digital 3d data by capturing the x, y and z coordinates of the object's surface. Digitising small items less than 5cm cubed precisely (i.e. 20 micron accuracy) remains very expensive. While lower cost scanners have recently been developed these are unsuitable for capturing small, detailed objects due to poor accuracy and difficulty of use. There remains a strong unmet need for an accurate, low-cost, fully-automatic and compact system that can quickly digitise small objects. We will undertake a study to determine the feasibility of developing an accurate image-processing based scanning system that can capture small objects with an accuracy of 20 microns. We propose to evaluate the suitability of an innovative technique based on phase-shifted structured light.