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Parallel-processing software for creating mosaic images
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | McCauley, Michael DeJong, Eric Klimeck, Gerhard Deen, Robert |
| Copyright Year | 2008 |
| Description | A computer program implements parallel processing for nearly real-time creation of panoramic mosaics of images of terrain acquired by video cameras on an exploratory robotic vehicle (e.g., a Mars rover). Because the original images are typically acquired at various camera positions and orientations, it is necessary to warp the images into the reference frame of the mosaic before stitching them together to create the mosaic. [Also see "Parallel-Processing Software for Correlating Stereo Images," Software Supplement to NASA Tech Briefs, Vol. 31, No. 9 (September 2007) page 26.] The warping algorithm in this computer program reflects the considerations that (1) for every pixel in the desired final mosaic, a good corresponding point must be found in one or more of the original images and (2) for this purpose, one needs a good mathematical model of the cameras and a good correlation of individual pixels with respect to their positions in three dimensions. The desired mosaic is divided into slices, each of which is assigned to one of a number of central processing units (CPUs) operating simultaneously. The results from the CPUs are gathered and placed into the final mosaic. The time taken to create the mosaic depends upon the number of CPUs, the speed of each CPU, and whether a local or a remote data-staging mechanism is used. |
| File Size | 278989 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20090020522 |
| Archival Resource Key | ark:/13960/t49p81d4b |
| Language | English |
| Publisher Date | 2008-02-01 |
| Access Restriction | Open |
| Subject Keyword | Technology Utilization And Surface Transportation Mosaics Image Processing Terrain Cameras Mars Surface Central Processing Units Robotics Parallel Processing Computers Pixels Computer Programs Roving Vehicles Real Time Operation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
