Photogrammetry 101
Photogrammetry 101
Photogrammetry can be simply defined as the process of making precise measurements from photographs. Its origins can be traced back to the 1850s, but its full potential was realized in the early 20th century.
Photogrammetry in today’s world utilizes digital imagery to produce high resolution high accuracy image maps (orthophotos) as well highly detailed 3D models and digital twins.
This webinar will explain the basic principles of photogrammetry, including how photogrammetric cameras are different from photographic cameras, how imagery is acquired from satellites, aircraft, and drones, how 3D models are created from stereo images, how accurate georeferencing is achieved, and how photogrammetry compares with other mapping technologies, particularly lidar, for creation of 3D data.
Karen Schuckman is the Senior Director of Remote Sensing and Geospatial Services at RRC. She is also an Associate Teaching Professor of Geography at Penn State University, where she teaches remote sensing and geospatial technology. In addition to her work at RRC and academic pursuits, Karen serves as the Executive Director of the American Society for Photogrammetry and Remote Sensing. Her contributions to the geospatial field are significant. Karen led the utilization of remotely sensed imagery during the Hurricane Katrina response and spearheaded lidar acquisition for the first phase of the North Carolina Floodplain Mapping Program, among many other projects. Before that, she worked with the USGS National Mapping Division and served as Vice-Chair of the NOAA Advisory Committee on Commercial Remote Sensing.Photogrammetry in today’s world utilizes digital imagery to produce high resolution high accuracy image maps (orthophotos) as well highly detailed 3D models and digital twins.
This webinar will explain the basic principles of photogrammetry, including how photogrammetric cameras are different from photographic cameras, how imagery is acquired from satellites, aircraft, and drones, how 3D models are created from stereo images, how accurate georeferencing is achieved, and how photogrammetry compares with other mapping technologies, particularly lidar, for creation of 3D data.
