Visual GIANT for Windows is a powerful
software application, which provides the user with the ability to form, solve and analyze
a wide variety of photogrammetric triangulation problems. GIANT is the acronym derived
from General, Integrated, Analytical Triangulation and implements a rigorous bundle
adjustment of photo measurements. It is based on the author's 40 years of research and
development in analytical photogrammetry and cartography. Throughout the years, GIANT, in
its various versions, has been successfully applied to a range of photogrammetric
problems, large and small, simple and complicated, in industrial, government and academic
environments.
As its name indicates, Visual GIANT for Windows is hosted on the
popular IBM PC-AT style of architecture, running under the control of the Windows
operating environment. GIANT is one of the premier photogrammetric triangulation packages
hosted on the Windows platform, offering a flexible, powerful, intelligent, user-friendly
suite of useful features. Samples of some of these features include:
- Flexibility GIANT can be
configured to solve photogrammetric problems as simple as a two-photo intersection and
resection to a thousand-photo block supported by kinematic GPS with self-calibrating inner
orientation and lens distortions, and all variations in between. Job input and output is
highly customizable, enabling the user to produce hardcopy output that contains only the
desired information. Users can choose between rectangular and geographic coordinates,
several predefined geodetic reference surfaces or a user-defined geodetic reference
surface. Imagery from multiple cameras can be used, with each camera having its own set of
statistical characteristics.
- Powerful GIANT implements
sophisticated mathematical and numerical algorithms to remove the restrictions in the
numbers of frames or images or points that have historically limited other photogrammetric
triangulation software packages. Algorithms desensitize the solution to the ordering of
data in the input stream and result in optimal program execution speed.
- Intuitive, User-Friendly Interfac Compliant with the operation of other applications in the Window operating
environment, the GIANT user interface permits a user to intuitively operate the program,
minimizing the time required to be productive with the application.
- Intelligent Construction of
the interface prevents the user from configuring inconsistent program options or options
which would otherwise render an incorrect solution. File browsers prevent the selection of
incomplete projects. Only those projects with complete datasets are offered by the program
to select and run. File integrity checkers scan the input data stream to assure that files
have proper structure. CPU time will not be needlessly consumed by jobs that fail after
running for some time due to incorrect input.
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