• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>SPIE Conference on Emerging Digital Micromirror Device Based Systems and Applications >Real time 3D shape recording by DLP based all-digital surface encoding
【24h】

Real time 3D shape recording by DLP based all-digital surface encoding

机译：基于DLP的全数字表面编码实时3D形状录制

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The use of computer generated sinusoidal fringe patterns has found wide acceptance in optical metrology. There are corresponding software solutions that reconstruct the phase field encoded in the fringe pattern in order to get 3D-shape data via triangulation and deflection measuring setups, respectively. Short recording time is a common issue of high importance for all tasks on the factory shop floor as well as in medical applications and for security. Recent high-speed implementations take advantage of MEMS based spatial light modulators and the digital micro mirror chipset DLP Discovery~(TM*) is the fastest proven component currently available for this aim. Being a bi-stable on-off-state system, the sinusoidal gray level pictures are generated by controlling the mirrors ON-time period during which an analogue detector is exposed. This digital generation of light intensity distributions provides outstanding precision and long-term stability. It is used in leading edge technology solutions that produce video type streams of 3D surface data with a sustained repetition rate of 40 Hz. A new proposal is discussed in this paper that goes beyond this state of the art by considering the optical encoding of the surface as an all-digital communication link. After a brief classification of stateof- the-art systems, the authors describe how future all-digital encoding leads to extremely high speed and precision in 3D shape acquisition.
机译：计算机生成的正弦边缘图案的使用已经发现在光学计量学中广泛验收。存在相应的软件解决方案，其重建在条纹图案中编码的相位字段，以便分别通过三角测量和偏转测量设置获得3D形数据。短记录时间是工厂车间和医疗应用和安全性的所有任务以及安全性的常见问题。最近的高速实现利用基于MEMS的空间光调制器，数字微镜芯片组DLP发现〜（TM *）是目前可用于此目的的最快证明组件。作为一个双稳态的开关状态系统，通过控制模拟检测器暴露的时间段来产生正弦灰度级图像。这种光强度分布的数字生成提供了出色的精度和长期稳定性。它用于领先的边缘技术解决方案，用于产生3D表面数据的视频类型流，其持续重复率为40 Hz。本文在本文中讨论了一种新的提案，其通过考虑表面的光学编码作为全数字通信链路，超出了本领域的这种状态。在简要分类状态 - 艺术系统之后，作者描述了未来的全数字编码如何导致3D形状采集中的极高速度和精度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号