MRI: Development of Versatile Mobile Range Scanning System?Enabling Large-scale High-density 3D Data Acquisition for Cross-Disciplinary Research

MRI：开发多功能移动范围扫描系统？为跨学科研究实现大规模高密度 3D 数据采集

• 批准号: 0923131
• 负责人: Ruigang Yang
• 金额: $ 101.39万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0923131&HistoricalAwards=false
• 关键词: MRI; Development; Versatile; Mobile; Range

Proposal #: CNS 09-23131PI(s): Yang, Ruigang; Crothers, George M.; Dinger, James S.; Seales, William B.; Weisenfluh, Gerald A.Institution: University of Kentucky Lexington, KY 40506-0057Title: MRI/Dev.: Versatile Mobile Range Scanning System Enabling Large-scale High-Density 3D Data Acquisition for Cross-Disciplinary ResearchProject Proposed:This project, developing a versatile mobile range system based on the principle of Light Detection and Ranging (LIDAR), enables:- New data driven approaches in 3D reconstruction and modeling, pattern recognition, and data mining;- Quantitative studies in geology (e.g., analysis of hill slope movement and characterization of outcrops;- Archaeological recording of fragile sites with limited access (e.g., those in caves).The system consists of 3 LIDAR sensor heads, GPS and inertial measurement unit, high-resolution digital cameras, and processing software to generate high-resolution, accuracy colored point clouds that are geo-referenced. Unlike typical laser scanning system, it supports both stationary and high-speed mobile scanning. For example, when mounted on a vehicle, it should be able to generate over 50 points per meter given a speed of 100km/hr. In comparison, the typical density from an airborne LIDAR system is only 1-2 points per meter. This level of density at high scanning speeds allows rapid 3D scanning of large scenes not possible with either stationary systems (too slow) or airborne systems (too sparse). Through relatively simple hardware modification and more sophisticated processing algorithms, the state of the art in scanning range, density, and operational conditions is expected to advance as follows:- Increasing the scanning range over 6 times in the mobile mode, from the original 100 m (specified by the LIDAR sensor vendor) to greater than 600 m.- Improving the point density over 10 times by applying the principle of compressing sensing and information from the high-resolution color image, without changing the hardware configuration.- Developing the ability to scan beyond line of sight with inexpensive self-calibrating reflective mirrors, and develop real-time vision and inertial-based navigation to allow GPS-free operations for mobile scan (critical for scanning in underground areas, where many archaeological sites reside).Plans also include building a large scale 3D cityscape database with over 30 billions of raw data samples to cover the entire Lexington metro area. The database will be shared to enable research beyond graphics and vision, including, but not limited to, data compression, transmission, visualization, index and retrieval, and computational geometry.Broader Impacts: The instrument is expected to be the first university-owned mobile laser range sensing system, which might inspire and facilitate many exciting new research venues. The scanning and processing tasks will be carried out and documented by undergraduate students. The geological and archaeological studies will be used to attract local students, in particular those underrepresented from Appalachia. The system will have commercial values to provide on-demand scanning for applications ranging from construction, city planning, law enforcement, survey and mapping, to 3D imaging. Commercial users will be charged a fee to maintain operation and sustain the enabling data beyond the life of the award.

方案编号：CNS 09- 23131主要研究者：Yang，Ruigang; 克罗瑟斯，乔治M; Dinger，James S.; Seales，William B.;机构：肯塔基州大学 列克星敦，KY 40506- 0057标题： MRI/器械：多功能移动的范围扫描系统实现大规模高密度三维数据采集的跨学科研究项目建议：该项目，开发一个多功能的移动的范围系统的基础上，光探测和测距（LIDAR）的原则，使：-新的数据驱动的方法在三维重建和建模，模式识别，和数据挖掘;-定量研究地质（例如，山坡运动分析和露头特征描述;-对访问受限的脆弱遗址进行考古记录（例如，该系统由3个激光雷达传感器头、GPS和惯性测量单元、高分辨率数码相机和处理软件组成，用于生成具有地理参考的高分辨率、准确度彩色点云。与典型的激光扫描系统不同，它支持固定和高速移动的扫描。例如，当安装在车辆上时，它应该能够在100公里/小时的速度下每米产生超过50个点。相比之下，机载LIDAR系统的典型密度仅为每米1-2个点。在高扫描速度下的这种密度水平允许对大型场景进行快速3D扫描，这是固定系统（太慢）或机载系统（太稀疏）无法实现的。通过相对简单的硬件修改和更复杂的处理算法，扫描范围、密度和操作条件方面的最新技术水平有望如下发展：-在移动的模式下将扫描范围增加6倍以上，从最初的100 m（由LIDAR传感器供应商指定）增加到大于600 m。在不改变硬件配置的情况下，通过应用压缩高分辨率彩色图像中的传感和信息的原理，将点密度提高10倍以上。利用廉价的自校准反射镜开发视线以外的扫描能力，并开发实时视觉和基于惯性的导航，以实现无GPS的移动的扫描操作（对于许多考古遗址所在的地下区域的扫描至关重要）。计划还包括建立一个拥有超过300亿原始数据样本的大型3D城市景观数据库，以覆盖整个列克星敦都会区。该数据库将被共享，使研究超越图形和视觉，包括，但不限于，数据压缩，传输，可视化，索引和检索，计算geometrical.Broader影响：该仪器预计将是第一个大学拥有的移动的激光测距传感系统，这可能会激发和促进许多令人兴奋的新的研究场所。扫描和处理任务将由本科生执行并记录。地质和考古研究将被用来吸引当地学生，特别是那些来自阿巴拉契亚的代表性不足的学生。该系统将具有商业价值，为建筑、城市规划、执法、测绘和3D成像等应用提供按需扫描。商业用户将被收取费用，以维持运营和维持使能数据超过该奖项的生命。