基于视觉映射的三维相机信息可视化改善方法  

Improved 3D information visualization method for TOF camera based on vision projection

作　　者：赵科[1] 余洪山[1] 王耀南[1] 朱江[2] 万琴[3] 

机构地区：[1]湖南大学电气与信息工程学院,长沙410082 [2]湘潭大学信息工程学院,湘潭411105 [3]湖南工程学院电气信息学院,湘潭411104

出　　处：《电子测量与仪器学报》2012年第6期529-534,共6页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金项目(61005068);国家自然科学基金重点项目(60775047);湖南省科技计划项目(S2010G2013);广东省科技计划项目(2011B010300011)

摘　　要：针对TOF相机三维信息可视化中的突变、拉伸、毛刺等的问题,提出了一种基于仿人视觉映射的TOF相机三维数据信息可视化效果改善处理方法。方法首先研究分析了TOF三维相机和人类视觉系统感知原理,探寻突变、拉伸和毛刺现象的原因。在此基础上,提出了将TOF三维信息的锥形区域显示映射为人类视觉系统平行光模式的视觉映射模型,通过该映射处理达到逼近人类视觉的效果。该算法对多个不同场景进行了实验验证分析,结果表明该方法有效解决了三维显示中的变形和异常问题,有效改善了三维视觉可视化效果,并保持了三维目标的良好空间连续性。Aiming at the issue of the mutation, the stretching and the burr problem in 3D data visualization of TOF camera, an improved 3D information visualization method for TOF camera based on vision projection is presented in the paper. Firstly, the principle difference of TOF camera imaging and human visual perception is investigated in detail, and the reasons for the mutation, the stretching and the burr phenomenon are analyzed. Following this basis, the paper presents a geometrical projection model which projects the conical space of TOF 3D data into parallel light imaging space as hu- manoid vision system, and the transformed 3D data for visualization are generated. Finally, the experiment results in dif- ferent scenes are presented to verify the feasibility and efficiency of the proposed approach, in which 3D visualization effect of TOF camera reading are significantly improved with good consistency.

关 键 词：TOF相机 三维可视化 视觉映射 人类视觉模型 深度图像 

分 类 号：TP752.1[自动化与计算机技术—检测技术与自动化装置]