A parallelized implementation of a geometric correction algorithm for remote-sensed images | |
| Author | Thet Thet Swe |
| Call Number | AIT Thesis no. CS-99-18 |
| Subject(s) | Parallel processing (Electronic computers) Remote sensing |
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Science, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | A study of a simple, fast, efficient and flexible parallel algorithm for the geometric correction of remotely sensed images focusing particularly on the NOAA A VHRR image by using parallel processing approach is presented. Implementation has been done using the parallel geometric correction algorithm to improve the accuracy and the performance over the other existing methods of using higher order polynomial mapping functions . Image interpolation and resampling are applied to the image and the comparisons of errors using different polynomial transformation functions are pointed out and discussed. The speedup and accuracy of the developed algorithm are mentioned. The technique of parallel processing using message-passing interface has been described. The idea of choosing and partitioning the problems for the parallel programming environment has been mentioned. Moreover, we developed and experimentally evaluated data partitioning and load-balancing techniques for parallel geometric correction. The performance measurement of the parallel-computing algorithms over the sequential one has been discussed. The advantages and drawbacks of the discussed methods are pointed out and discussed. |
| Year | 1999 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Computer Science (CS) |
| Chairperson(s) | Yulu, Qi |
| Examination Committee(s) | Sadananda, Ramakoti;Batanov, Dentcho N. |
| Scholarship Donor(s) | Asian Development Bank-Japan |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1999 |