ENVI 5.3 adds lidar analysis

January 13, 2016  - By


The latest release of ENVI software, version 5.3, adds significant lidar point cloud analysis and visualization capabilities that previously were only available in the ENVI lidar software package. The Harris Corporation software offers users a single software interface to work with hyper-spectral, multi-spectral, panchromatic and lidar data.

The out-of-the-box functionality includes 3D point-cloud visualization, derived terrain product generation (such as digital elevation models) and lidar analytics such as viewshed line-of-sight calculation.

For users who need point-cloud or terrain products in an area where collecting lidar is not feasible or is too expensive, the ENVI Photogrammetry Module is able to generate synthetic 3D point clouds from stereo optical imagery to take advantage of existing imagery archives.

The dimension of time can be critical for a thorough geospatial analysis of an area, and the new ENVI release has added enhancements to the Spatio-Temporal analysis toolset. Spatio-Temporal analysis visualizes change and derives statistics from data over time, enabling users to observe events of the past to better predict upcoming activities.

New additions were also added to the ENVITask system, a relatively new method for performing discrete bits of image processing programmatically through the ENVI object-based API. This programmatic approach to image processing can save time because users can chain together multiple ENVITasks, allowing the output from one ENVITask to become the input to the next. There are now 138 ENVITasks available in the ENVI API.

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About the Author: Tracy Cozzens

Senior Editor Tracy Cozzens joined GPS World magazine in 2006. She also is editor of GPS World’s newsletters and the sister website Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.