Executive compass | September 2010

SOCET GXP comes of age

Dr. A. Stewart Walker, Director of Product Initiatives

Dr. A. Stewart Walker, Director, product Initiatives

Experienced SOCET SET users have been looking forward to the advantages of SOCET GXP for some time — the multiple capabilities from a single user interface, the easy-to-use Ribbon, the simple, ergonomic manipulation of imagery, Glove Align, Ortho On-the-Fly, analysis of hyperspectral and multispectral (HSI and MSI) imagery, the rapid creation of simple image-based products, and many others.

Nevertheless, for years there has been an insurmountable obstacle: SOCET GXP has not included a sensor model for frame cameras, i.e., the film and digital airborne sensors that are the primary data sources for most of these users. However, the requirement was never far from the minds of the sales team and product managers.

Now SOCET GXP is ready. The well-known SOCET SET Frame-Advanced sensor model was integrated into SOCET SET v5.5 as a precursor to the implementation into SOCET GXP. It is now part of SOCET GXP v3.2, and is used in the geospatial production process from frame import through triangulation. The Frame-Advanced sensor model is based on collinearity equations with 43 adjustable parameters, comprising six independent exterior orientation parameters per image, 12 constrained exterior orientation parameters per strip (GPS/IMU), and 25 constrained interior orientation parameters per block. Moreover, the Frame import capability makes it easy to define blocks, and the Ribbon user interface comes into its own for triangulation, ensuring faster learning and higher productivity.

SOCET GXP user interface for importing and working with Frame images. LEFT: A small strip of images with the Frame Block Setup window open, ready for editing; RIGHT: The Input/Output panel used in the Frame Import process.

SOCET GXP user interface for importing and working with Frame images. LEFT: A small strip of images with the Frame Block Setup window open, ready for editing; RIGHT: The Input/Output panel used in the Frame Import process.

Before-and-after screens showing the Frame Block Setup process in SOCET GXP.

Before-and-after screens showing the Frame Block Setup process in SOCET GXP. Images courtesy of NOAA/NGS.

Photogrammetric functionality in SOCET GXP has been available for some time, such as the Next-Generation Automatic Terrain Extraction (NGATE) module, orthorectification, and mosaicking, but again the streamlined interface and optimized workflows offer SOCET SET users worthwhile improvements, such as greatly enhanced seamline editing against an orthorectified image background that changes as the seamline is moved. SOCET GXP v3.2 extends the terrain analysis capabilities from v3.1 — on-the-fly line of sight, shaded relief, slope and aspect maps — to include change detection, volume analysis, and registration.

There are further enhancements to remote sensing functionality, which combined with the rigorous photogrammetry, makes SOCET GXP v3.2 a comprehensive and versatile image exploitation tool. Atmospheric correction and spectral libraries are two new additions to the HSI and MSI tool set, considerably increasing image classification capabilities. SOCET GXP v3.2 supports SAR analysis, and the new SICD format for complex data processing provides another element to the already capable electro-optical imagery SOCET GXP tool set.

Thus many SOCET SET customers can transition to SOCET GXP v3.2 in December 2010 and immediately enjoy improved productivity and optimized workflows. The Frame-Advanced sensor model is the key! The GXP team is standing ready to help you make the smoothest possible transition.

Sincerely,
Stewart Walker
Dr. A. Stewart Walker
Director, product initiatives
Geospatial eXploitation Products

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