详情

Exploratory Analysis of Augmented Reality Visualization of Right-of-Way Excavation Safety

项目名称：	Exploratory Analysis of Augmented Reality Visualization of Right-of-Way Excavation Safety
摘要：	This project will develop and demonstrate a prototype system for georeferenced augmented reality visualization of buried utility geospatial data and real-time monitoring of an excavator's proximity to buried utilities in its vicinity. Work in Stage 1 will begin with designing a graphics algorithm to place virtual entities in an augmented scene given a user's geographical position and head orientation. The algorithm's accuracy will be validated in a static scenario of a simulated excavation operation and inspection of vicinal underground utilities. The convention of marking underground utilities will be studied and an augmented reality visualization system compatible with Michigan's Miss Dig System and other agencies will be designed. This will lead to the development of a "third-person" augmented reality system for visualizing underground utilities. Visualization methods that obstruct the ground view while rendering utilities underneath will be implemented. Finally, a "first-person" operator-view augmented reality visualization system will be designed and evaluated using known subsurface utility geospatial data records. Work in Stage 2 will begin with investigating current technologies in place to prevent collisions between underground infrastructure and excavator end-effectors, and limitations in current accident prevention practices for buried utility excavation operations will be analyzed. Next, georeferenced three dimensional (3D) models of buried utilities capable of capturing location uncertainty associated with data will be developed through an intuitive visual representation. A framework to represent a real world operation in a 3D virtual world through sensor updated dynamic entities and georeferenced static entities will be developed, while maintaining adequate level of abstraction for effective representation. An interface between real world sensors and 3D equipment articulations will be designed to allow position and orientation update of equipment components through sensor streaming data. A generic user interface to allocate sensor streams to a wide array of 3D articulated equipment will be created to enable real-time visualization of an arbitrary excavation operation. Proximity monitoring methods in computer graphics literature will be reviewed to identify the most suitable approach to provide computational support for a 3D visualization framework. Finally, a real-time geometric proximity monitoring framework will be created for analyzing interactions between buried utilities and excavators, and providing distance and collision information.
状态：	Active
资金：	125242.00
资助组织：	Federal Highway Administration<==>American Association of State Highway & Transportation Officials (AASHTO)<==>National Cooperative Highway Research Program
项目负责人：	Jawed, Inam
执行机构：	University of Michigan, Ann Arbor
开始时间：	20141211
主题领域：	Construction；Highways；Safety and Human Factors