ASPRS 2021 Annual Workshop Program
All times shown below are Eastern Daylight (UTC-4).
All past workshops are available as recordings on demand.
Effective 5/18/2021: to access any workshop you have registered for (either the live webinar or on-demand recording), simply login to asprs.prolearn.io. You should see the course listed under My Learning on the ProLearn landing page.
2-hour and 4-hour workshops will be conducted as live, instructor-led webinars. Please refer to the following list for dates and times. Recordings of the workshops will be made available to all attendees on-demand as well as being open to new registrations. PDH Certificates will be sent to attendees who attend the live webinar or to those who watch the complete recording on-demand.
- 2-hour workshops are $150 for Non-Members, $75 for Individual Members, and $50 for Student Members
- 4-hour workshops are $225 for Non-Members, $125 for Individual Members, and $50 for Student Members
Upcoming Live Workshops
Ortho Mapping in ArcGIS Pro
Tuesday, August 17, 2021
11:00 AM – 3:15 PM EDT
Instructor: Cody Benkelman and Chris Patterson, Esri; Karen Schuckman, Penn State University
This is a 4 hour workshop, presented in two sections, to demonstrate photogrammetric processing in the Ortho Mapping tools of ArcGIS Pro.
The content will include an overview of the general concepts of photogrammetry, then review workflows within ArcGIS Pro (Advanced license) for orthorectifying imagery from drones, satellites, digital aerial cameras, and historical scanned film.
The discussion on satellite imagery will show how to orthorectify a single satellite scene using RPCs and ground control points. The discussion on scanned film will address specific challenges with historical datasets lacking camera calibration information. The discussion on drones and digital aerial cameras addresses frame-based sensors.
Workshop format will consist of presentation of concepts and software demos, with time for Q&A after each section.
Recommended audience includes GIS practitioners who need to orthorectify imagery as well as Educators looking for a hands-on platform to teach photogrammetric concepts.
Advance materials will be provided with instructions and sample data for those who wish to exercise these workflows. For those who do not have ArcGIS Pro, a 21-day evaluation copy may be downloaded from https://www.esri.com/en-us/arcgis/products/arcgis-pro/trial.
Recordings On-Demand
Google Earth Engine Fundamentals with Hands-on Training (2-hour)
Friday, April 16, 2021
4:45 PM to 6:45 PM EDT
Instructor: Jeff Pu, SUNY-ESF and Dr. JB Sharma, University of North Georgia
Combining Deep Learning with Object Based Image Analysis (2-hour)
Wednesday, April 21, 2021
12:15 PM to 2:15 PM EDT
Instructor: Matthias Staengel, Trimble
Recently, deep learning (DL) has become the fastest‐growing trend in data analysis and has been widely and successfully applied to various feature extraction tasks. In the context of remote sensing the combination of DL with OBIA (object based image analysis) offers the flexibility to select the optimal working method inside the complete feature extraction workflow.
eCognition is the original object-based image analysis software and with version 9 we are ushering in a new generation of OBIA incorporating DL. This workshop will explore the accelerated usage of deep learning with object based image analysis using Trimble eCognition Developer software.
If attendees would like to follow along live during the hand-on exercise, please download the eCognition Free-Trial and input data in advance.
Practical Approach to Using the ASPRS Positional Accuracy Standards for Digital Geospatial Data (4-hour)
Wednesday, April 28, 2021
10:00 AM to 2:15 PM EDT
Instructors: Qassim Abdullah, Woolpert, Inc. and Claire Kiedrowski, Cornerstone Energy Services, Inc.
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 examples.
ELVIS : USGS NGP Lidar Research and Development Tool for Future 3DEP Lidar Accuracy Requirements (2-hour)
Monday, May 3, 2021
12:15 PM AM to 2:15 PM EDT
Instructor: Minsu Kim
USGS NGP supports the research for accuracy assessment of 3DEP lidar point cloud to establish potential future accuracy requirements of 3DEP data. ELVIS is a research and development tool for NGP lidar research developed at USGS EROS lidar team. The workshop will address
- Theoretical background of Airborne lidar simulation software (Radiative-transfer and Georeferencing)
- Investigation of the functionalities of the lidar simulator in terms of laser, scanner, and target module
- Summary of lidar accuracy definitions from USGS lidar base specification
- Development of generalized external uncertainty model using 3-plane intersection point
- Development of generalized external uncertainty model using line-crossing point
- 3DEP accuracy assessment (Absolute Vertical Accuracy)
- Horizontal accuracy in the context of 3D Accuracy assessment
- Types of geometric feature-based GCPs found in the point cloud
- Application of 3D accuracy using Ground Truth Survey data
- Application of 3D accuracy using Mobile lidar data (Here Technology)
Automated Timber Cruising – Remote Sensing Meets Surveying (2-hour)
Tuesday, May 4, 2021
12:15 PM to 2:15 PM EDT
Instructor: Keith Peterson, Trimble
eCognition is the original object-based image analysis (OBIA) software and has been used by industry leading data providers, value adders, remote sensing professionals, and earth observation scientists for nearly 20 years. It offers a comprehensive range of tools to create powerful analysis applications that can handle all common data sources, such as medium to high resolution satellite data, very high resolution aerial as well as UAV photography, GIS, lidar, radar and even hyperspectral data.
In this workshop, we will examine how Trimble eCognition can be used to extract valuable information for foresters and surveyors from a combination of image and lidar data. Users will learn how to extract individual tree crowns, tree positions and tree height using a mix of OBIA tools in a fully automated Rule Set. In addition, we will look at how surveyors are making use of eCogAI in our Trimble Business Center (TBC) software to count and analyze trees on scanned data.
If attendees would like to follow along live during the hand-on exercise, please download the eCognition Free-Trial and input data in advance.
Photogrammetry Meets Surveying (2-hour)
Wednesday, May 5, 2021
10:00 AM to 12:00 PM EDT
Instructor: Thomas Widmer and Dr. Mohsen Miri, Trimble
Have you ever tried to explain photogrammetry to your friends in 5 minutes? We will work you through the process of integrating high-level photogrammetric tasks into the palm of the daily surveyor with a simple but still accurate solution.
In this workshop, we will discuss the implementation of photogrammetry in our software, considering different aspects, i.e. market impact, development challenges in the fusing of technologies, and enhanced productivity keeping the high quality of final deliverables.
For this, we will take a closer look at the integration of leading drone vendors in Trimble and how it can be used to extract automatic point clouds and orthophoto mosaics, while learning and discussing the process parameters. Finally, we would like to run an open discussion and look forward to hearing your wishes and feedback.
How to Handle Imagery Big Data to Generate Digital Twins (2-hour)
Thursday, May 6, 2021
10:00 AM to 12:00 PM EDT
Instructor: Dr. Mohsen Miri and Thomas Widmer, Trimble
How large is Big Data in your imagination? How similar is your Digital World to the real one?
The rapidly growing aerial mapping technologies lead to capturing a large number of images, both in nadir or oblique viewing directions as well as single or multi head sensors. Handling this amount of Big Data needs stable solutions and smooth workflows. On the other hand, the increasing demand on using image-based data to generate Digital Twins, emphasizes the importance of a seamless workflow for high quality deliverables for GIS, city modeling, construction, and simulation purposes. This workshop will give you an overview of how to overcome processing of complex and large imagery projects using Trimble Inpho MATCH-AT software and highlighting the new high performance matching strategy. You will learn how to create your Digital Twins in the forms of true-orthophotos, point clouds or 3D textured models from your area of interest using Trimble Inpho MATCH-3DX. To increase the productivity we will give you some insights on how to scale your projects by distributed processing with DPMaster.
Generic Sensor Model for Optical Line Scanners and Framers (4-hour)
Monday, May 10, 2021
2:30 PM to 6:45 PM EDT
Instructor: Dr. Henry (Hank) Theiss, University of Arkansas and Dr. Reuben Settergren, BAE Systems
The goal of this workshop is to improve the participants’ understanding of the properties of sensor models, the concept of generic models for line scanners and frame sequences, and the content of the metadata required to support rigorous downstream exploitation of the associated image products to include optimal estimation and reliable uncertainty reporting for all computed quantities.
The workshop will consist of two parts:
- Part 1 includes a briefing to provide an elementary, non-mathematical overview of general principles of geographic coordinate systems and major classes of sensor models for a variety of imaging sensors.
- Part 2 includes a briefing to explain the photogrammetry and error modeling aspects of these new generic sensor models and associated metadata structure.
At the ends of each part, the instructors will provide the participants an informal atmosphere to ask questions and promote discussion on related topics; e.g. about coordinate systems and sensor model classes at the conclusion of Part 1, and the practical aspects of how a data provider populates the proper metadata with their image products and how an exploitation tool user performs typical geopositioning scenarios including absolute geolocation, relative mensuration, and multi-modality registration at the conclusion of Part 2.
Preparation for ASPRS Certification – Lidar (4-hour)
Tuesday, May 11, 2021
2:30 PM to 6:45 PM EDT
Instructor: Karl Heidemann, CMS, Retired USGS
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 or Certified Technologist-Lidar. The workshop is also valuable for practitioners wishing to further their mastery of the theory and practice of topographic mapping with lidar.
UNet Deep Learning Image Classification using the ArcGIS Pro Image Analyst Extension (4-hour)
Thursday, May 20, 2021
10:00 AM to 2:15 PM EDT
Instructor: Amr Abd-Elrahman, University of Florida
This workshop introduces:
- Pixel- and object-based image classification using traditional (Support Vector Machine and Random Forests) machine learning algorithms
- Building models for data preparation and experiment with different classification parameters
- Deep learning semantic segmentation using the UNet Model applied on wetland land cover classification
Participants will be briefly introduced to necessary theoretical background information as well as practical implementation. The workshop will present a complete workflow with clear implementation instructions.
Outline:
- Introduction to image classification concepts and machine learning algorithms
- Preparing training datasets for the UNet deep learning model
- Training the UNet Model
- Image classification and accuracy assessment using the UNet Model
Aerial Triangulation and Data Processing for the Unmanned Aerial System (4-hour)
Tuesday, May 25, 2021
10:00 AM to 2:15 PM
Instructors: Dr. Qassim Abdullah, Woolpert, Inc. and Dr. Riadh Munjy, CSU Fresno
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 presented.
Coming Soon!
Preparation for ASPRS Certification – General Knowledge
TBD
Review general knowledge areas covered by ASPRS certification exams (photogrammetry, remote sensing, GIS, lidar, and UAS).
