ENVI FX

Find and extract specific objects of interest from all types of imagery with the ENVI Feature Extraction Module (ENVI FX). User-friendly tools enable you to extract features from geospatial imagery based on the object’s spatial, spectral, and texture characteristics and identify them as objects like vehicles, buildings, roads, coastlines, rivers, lakes, and fields.

3D point cloud feature extraction is also available in this module. Feature identification can be performed on an entire point cloud scene or a user defined subset of a scene – providing you with accurate information in a fraction of the time. Features you can extract include buildings, trees, and power line vectors, poles and attachments.

The inherent flexibility of ENVI FX lets you modify parameters and data at any stage of the process. Designed specifically for GIS users and fully integrated with ESRI’s ArcGIS® software, ENVI FX includes unique step-by-step workflows that walk you through previously complex image analysis tasks.

Agricultural operations work on razor thin margins. One key to profitability is being able to use the minimum amount of crop inputs while simultaneously maximizing yields. This is often easier said than done since conventional field inspection methods are time consuming and inefficient. Missing a small area of pest or insect infestation can result in a big loss come harvest, and over fertilizing can be just as costly as using too little fertilizer over the long term.

Satellite and UAV imagery offers an efficient and effective way to survey small to large scale farming operations to assess overall crop health. Remote sensing techniques can then be used to analyze aerial imagery to pinpoint areas of crop stress and determine exactly what is needed to remedy the situation. This type of analysis provides the information needed to determine when, where, and how much water, pesticide, and fertilizer is needed to produce a healthy crop.

Crop counter tool results for a grape vineyard. Image data: PLEIADES © CNES 2016, Distribution Airbus DS.

MINIMIZE LOSSES TO MAXIMIZE YIELDS

The ENVI Precision Ag Toolkit analyzes multispectral data to provide extensive crop health information, even to users who have little to no experience with remote sensing techniques. This toolkit puts industry-changing algorithms into the hands of growers so they can maximize yield and minimize losses.

HOTSPOT ANALYSIS

Using proven geospatial statistical analytics, our Hotspot Analysis tool can determine regions of a field that require more attention than others. The results from hotspot analysis deliver information needed to apply prescriptive farming techniques and not waste fertilizer or pesticides on regions where the field is vigorous.

CROP COUNTER

With the Crop Counter tool, users can accurately extract the number, position, and size of the individual plants in a field to predict yield. This tool also can be used to access the health of individual plants and visualize that relative to other plants or as absolute values.

Starting from the top image, this progression shows the field outline, the Normalized Difference Vegetation Index, and the Hotspot analysis for the same field.

ENABLED FOR DESKTOP AND CLOUD ENVIRONMENTS, THE ENVI PRECISION AG TOOLKIT ALLOWS A USER TO INGEST SATELLITE AND UAV IMAGERY TO PERFORM:

ACM

Remove atmospheric interference from your imagery with the ENVI Atmospheric Correction Module (ENVI ACM). Whether you require an advanced, physics-based technique, or more of an on-the-fly method for real-time data processing, ENVI ACM offers a flexible solution that delivers the accurate and scientific detail you need. ENVI ACM treats each image and its atmospheric imprint individually to create a unique model that is a true, reliable representation of a specific image scene. The ENVI Atmospheric Correction Module works on both multispectral and hyperspectral data and automatically supports today's most frequently used sensors.

DEM

Quickly and easily create spatially accurate digital elevation models (DEMs) of your geospatial imagery with the ENVI DEM Module . A flexible, step-by-step, fully-guided process enables you to produce accurate and robust models from virtually any airphoto or satellite stereo pair images with RPCs, including those from pushbroom sensors such as ASTER, IKONOS, OrbView-3, QuickBird and SPOT 1-5. These tools are all you need to view anaglyph stereo pairs, measure building or mountain heights, edit DEM values and extract 3D features.

Photogrammetry Module

Register imagery to ground coordinates and geometrically correct them to remove distortions that happen during image capture with the ENVI Photogrammetry Module (formerly the Orthorectification Module). This Module delivers a trusted, rigorous orthorectification method with robust capabilities. A wizard-based interface guides users through orthorectification steps to quickly produce expert-level results regardless of experience level. This solution creates a seamless data transition, easily taking you from data ingest through orthorectification with the option to export results for further analysis or inclusion in your GIS products.

This module also generates synthetic 3D point clouds and a DSM from spaceborne optical imaging platforms via multi-ray photogrammetry techniques that involve feature detector pixel correlation and dense image matching. This functionality produces LAS format output files that can be used with the wide variety of point cloud visualization and processing tools available in ENVI. Users can take advantage of large commercial imagery archives and also use this capability to create point cloud and terrain products where flying airborne LiDAR is not feasible or would be cost-prohibitive.

Read, edit, and deliver NITF files using the ENVI NITF Module, certified by the Joint Interoperability Test Command (JITC). The ENVI 5.0 NITF/NSIF Module was tested by the JITC and recommended for full compliance registration to complexity level 7 for NITF 2.1 and complexity level 6 for NITF 2.0 -- the highest awarded for each format. ENVI 5.0 Service Pack 2 is in compliance with these standards.