DeltaCue Automated Change Detection
Software

Image Credit: DigitalGlobe

Detect Land-cover Changes Over Time
DeltaCue software lets you use satellite imagery to detect Land-cover changes between two dates at the same location. Change is identified based on the spectral properties of each image pixel once the two images have been properly aligned (registered) and normalized to remove atmospheric effects.

DeltaCue is typically used for wide area surveillance. Image map products can be generated with geographic coordinates of change features. DeltaCue output can be fused with topographic maps, ADRG maps, and other types of imagery. For example, Landsat Thematic Mapper (TM) images covering 10,000 sq. miles each can be processed to detect change. A large archive of TM images, from 1984 to present, exists for many parts of the world.

What DeltaCue Does For You:

• Detects significant change in land-cover materials between scenes collected on two different dates
• Standardizes the workflow for executing the change detection process
• Masks out insignificant change areas based on their spatial and spectral properties
• Accommodates both Image Scientists and Image Analysts
• Automates many of the standardized processing steps required for change detection analysis
  
• Incorporates a variety of change detection algorithms which can be customized for the user’s specific application
  
• Manages files created during the process and organizes successive iterations
  
• Integrates with existing Leica tools for image interpretation

DeltaCue Applications:

• Detecting changes in land use & land-cover
  
• Delineating wetlands loss and encroachment
  
• Estimating forest loss through development or disease
  
• Identifying new housing and infrastructure changes
  
• Mapping flood extent areas and disaster impact zones

Image Credit: DigitalGlobe

Features and Benefits:

• DeltaCue Change Algorithms and Filters – a variety of change algorithms and filters are available for different applications. Specific combinations of change detection algorithm and filters allow you to identify significant changes of interest more quickly and reliably.
  
• DeltaCue Wizard Interface – steps you through the process of selecting appropriate algorithms and change filters for your application. Results are saved to a project file. Improves productivity and reduces the learning curve by making use of a simple interface that controls the complex change detection process.
  
• DeltaCue Change Detection Viewer – displays the detected change along with the original image pair. Easy access to change analysis tools speeds the process of evaluating the results and producing output products.
  
• DeltaCue Iteration Capability – allows you to quickly try different process settings and save the settings for reuse. Identify application specific settings quickly and apply them via the wizard interface in future processing runs.

• Common Area Image Subset
  
• Scene-to-scene Radiometric Normalization
  
• Change Detection Difference (Tasseled Cap, Magnitude, Principal Component)
  
• Change Threshold (Automatic or Interactive)
  
• Change Filters (Spatial, Misregistration)
  
• Change Output Enhancement and Display
  

Image Credit: DigitalGlobe