Coastal Zone Mapping and Imaging Lidar System (CZMIL)

Papers

Automated Target Detection and Grouping from Remotely Sensed Data
Targets are objects that rise above the bottom surface more than a specific amount defined by IHO survey standards. Currently target detection requires time consuming analysis by the human expert. The contracted task is to design and implement an automated target detector that can be used as a tool by human experts. We tested the implementation internally and have sent some of the test results to experts at NAVO for assessment. In addition we also designed and implemented a target grouping procedure that clusters the targets according to a proximity metric. The resulting grouping can be used to produce polygon outlines that will replace selected clusters of densely spaced targets.
Downloads:
Automated Target Detection and Grouping from Remotely Sensed Data (3.27 MB) download *.pdf
Automated Target Detection and Grouping from Remotely Sensed Data (3.39 MB) download *.doc

Coastal Zone Mapping Imaging Laser Project (CZMIL)-Year 1 Report
The High Performance Visualization Center at the Center of Higher Learning (CHL) is charged with the task of developing visualization capabilities of the CHARTS system. A significant effort in the first year was to explore the use of advanced visualization techniques and technology for the display and analysis of three-dimensional information currently available from CHARTS and extended by CZMIL. This effort took advantage of CHL’s extensive experience in data visualization techniques. Existing and developing data and products were evaluated in terms of visualization techniques that optimized the ability of the user to extract the sought after knowledge from the processed data. This effort explored levels of visualization sophistication ranging from the web-based user, high-resolution graphics computers, 3-D immersive techniques, and more.
Downloads:
Coastal Zone Mapping Imaging Laser Project (CZMIL)-Year 1 Report (357 kb) download*.pdf
Coastal Zone Mapping Imaging Laser Project (CZMIL)-Year 1 Report (632 kb) download*.doc

Processing Software at JABLTCX and Processing Acceleration Opportunities
The current airborne LIDAR survey system CHARTS is SHOALS 3000T20E that collects voluminous data from its variety of onboard sensors. It gathers LIDAR bathymetric and topographic data, CASI hyperspectral data and RGB digital image data. The purpose of this airborne system is complete littoral zone surveying and mapping for USACE and US Navy. The huge volume of currently collected digital data and a foreseen increase in the data gathering capabilities of the next generation survey system creates a need to develop faster methods to process collected data. This report looks at the existing processing paths, processing hardware and software to identify opportunities to accelerate processing and delivery of final hydrographic, topographic and hyperspectral products by using high performance programming techniques such as parallelization, vectorization and in memory processing. A small number of targeted improvements have been identified to be discussed with software vendors.
Downloads:
Processing Software at JABLTCX and Processing Acceleration Opportunities (1.20 MB) download *.pdf