Photogrammetry

Key Features

Automatic data checking at each step
Footprint selection lets the user graphically select footprints of photos and models of a selected block
Unlimited project size via division into sub-blocks
Semi-automatic and manual tie point measurement in a multi-photo environment
Qualitative automatic tie point generation using efficient and robust image matching algorithms
Well-connected image block by high-quality multi-ray points
High-performance using efficient algorithms and restricting tie points to a reasonable limit
Automatic detection of “Weak Areas” – ISAT checks if sufficient number of image points were available for each “Von Gruber” area, overlapping between models along the strip, and overlapping models across strips
Auto Stretch (on-the-fly) option in ISAT to change the image contrast for tie/point generation (ISAT)
Comprehensive bundle block adjustment
Bundle adjustment in Relative (without control points) and Absolute modes
Robust estimator option for blunder detection
GPS/INS data processing – tightly integrated with the Applanix POSEO system
Camera and self-calibration capability
Variance-covariance (precision) estimation
Display of vector residuals (image/object) to facilitate the error analysis process
Ability to adjust several blocks simultaneously on a multi-processor computer or several computers
Merge and edit sub-blocks allows users to merge multiple blocks into a new block
Automatic control point extraction with the use of Map Photos and the Elevation Files
Automatic control point extraction from orthos and correlate them with photos (Second Generation Orthos)
Automatically reducing shadow points