Total Propagated Uncertainty (TPU) is the statistical estimate of lidar positional uncertainty for each lidar point. Theoretical details of the TPU and its application to the airborne lidar data will be presented. Assessment of the 3D absolute accuracy of the lidar point cloud is an important priority in USGS 3DEP program. TPU is an important factor that affects the absolute accuracy of the lidar point cloud data. Techniques for the 3D absolute accuracy assessment using various... Details
When: March 24, 2020
Where: Virtual
|
This workshop provides an in-depth look at the USGS/ASPRS Data Quality Measure (DQM) software. DQM provides an ability to determine the relative accuracy, or geometric quality, of overlapping swaths of lidar point clouds using a point-to-plane measurement technique. DQM calculates vertical and horizontal differences between swaths in a point cloud tile, which allows better analysis of the quality of a lidar project. Attendees will see a demonstration on how to use the tool and... Details
When: March 24, 2020
Where: Virtual
|
Cloud-based image processing platforms like the Google Earth Engine (GEE) bring unprecedented possibilities for education, research, and outreach. This workshop will focus on an interactive exploration of GEE capabilities, the repository of all of publicly available aerial and satellite data, and user upload of imagery for analysis. The workshop will begin with a presentation of examples of GEE projects with a focus on education, undergraduate research, and outreach followed by... Details
When: March 25, 2020
Where: Virtual
|
Professional grade lidar systems are currently being used onboard unmanned aerial systems for high precision mapping applications. This workshop is intended for the unmanned airborne lidar user community including mapping professionals, land surveyors, managers, and decision makers to understand the underlying concepts of lidar from the technical and business perspective, in the form of theory and practice, using real data sets from around the... Details
When: March 26, 2020
Where: Virtual
|
This workshop provides an in-depth look at the ASPRS Positional Accuracy Standards to categorize positional accuracy of products derived from digital aerial cameras, manned and unmanned aerial systems, and all types of lidar including terrestrial, mobile, and airborne. The workshop will explain the basis for each accuracy measure adopted in the standards. Instructors will demonstrate practical application of these standards. Attendees will apply these standards to real-world... Details
When: March 27, 2020
Where: Virtual
|
This workshop covers the common knowledge areas comprising a large portion of exam content for ASPRS Certification. It is valuable preparation for those who have never taken an ASPRS exam, as well as for those who have expertise in a particular specialty, such as lidar or UAS, but feel less prepared for the general knowledge component of the exam. This workshop will also explain the certification application process and the importance of certification in career... Details
When: March 30, 2020
Where: Virtual
|
Photogrammetry is often explained by describing the collinearity condition and showing examples of final products. The intermediate steps are rarely illustrated in detail. This workshop aims to make analytical photogrammetry accessible to the layperson by using spreadsheet calculations to 1) solve for the exterior orientation parameters of a framing camera, and 2) determine the dimensions of an object using stereo... Details
When: March 30, 2020
Where: Virtual
|
This workshop provides an in-depth review of content contained in the ASPRS Airborne Topographic Lidar Manual. It is valuable for those planning to take the examination for ASPRS Certified Mapping Scientist-Lidar, Certified Technologist-Lidar, or Intern. Workshop participants will answer practice questions and discuss answers in an interactive session. The workshop is also valuable for practitioners wishing to further their mastery of the theory and practice of topographic mapping... Details
When: March 31, 2020
Where: Virtual
|
Although lidar data has been collected and processed for over 20 years, the global lidar market continues to rapidly expand as demand for 3D imagery in consumer, commercial, and government applicatioincreases. Federal, state, and local government agencies are acquiring lidar data for use in applications such as floodplain mapping, urban planning and design, resource and environmental management, law enforcement, natural resource exploration, archeology, and emergency response. This... Details
When: March 31, 2020
Where: Virtual
|
This workshop teaches participants to successfully design, plan and execute an aerial mission using unmanned aerial systems (UAS) and GPS-based aerial triangulation, including flight planning, ground control placement, camera calibration, and product generation. Participants will be introduced to mathematical basis of simultaneous bundle block adjustment. Practical examples will be... Details
When: April 1, 2020
Where: Virtual
|
This workshop will provide an informative introduction to the fundamental concepts and technologies in object-based image analysis and its combination with computer vision methods, machine-learning and pixel-based operations. Attendees will use eCognition Developer to employ a comprehensive range of analysis tools utilizing diverse data sources, from medium to high resolution satellite data, very high resolution aerial and UAV imagery, GIS, lidar, radar, and even hyperspectral... Details
When: April 1, 2020
Where: Virtual
|
|
|
This workshop teaches participants how to (1) conduct pixel- and object-based image classification using traditional (Support Vector Machine and Random Forests) machine learning algorithms; (2) build models for data preparation and experiment with different classification parameters; (3) use the deeplab deep learning architecture for image segmentation (classification). Participants will be briefly introduced to necessary theoretical background information as well as practical... Details
When: June 22, 2020
Where: Virtual
|
When: November 2–23, 2020
Where: Virtual
|
Geospatial Intern Certification
When: March 8, 2021
Where: Online
|