Parallel Algorithms for Image Histogramming and Connected Components with an Experimental Study
| dc.contributor.author | Bader, David A. | en_US |
| dc.contributor.author | JaJa, Joseph | en_US |
| dc.date.accessioned | 2004-05-31T22:29:15Z | |
| dc.date.available | 2004-05-31T22:29:15Z | |
| dc.date.created | 1994-12 | en_US |
| dc.date.issued | 1998-10-15 | en_US |
| dc.description.abstract | This paper presents efficient and portable implementations of two useful primitives in image processing algorithms, histogramming and connected components. Our general framework is a single-address space, distributed memory programming model. We use efficient techniques for distributing and coalescing data as well as efficient combinations of task and data parallelism. Our connected components algorithm uses a novel approach for parallel merging which performs drastically limited updating during iterative steps, and concludes with a total consistency update at the final step. The algorithms have been coded in Split-C and run on a variety of platforms. Our experimental results are consistent with the theoretical analysis and provide the best known execution times for these two primitives, even when compared with machine specific implementations. More efficient implementations of Split-C will likely result in even faster execution times. (Also cross-referenced as UMIACS-TR-94-133.) | en_US |
| dc.format.extent | 3257675 bytes | |
| dc.format.mimetype | application/postscript | |
| dc.identifier.uri | http://hdl.handle.net/1903/681 | |
| dc.language.iso | en_US | |
| dc.relation.isAvailableAt | Digital Repository at the University of Maryland | en_US |
| dc.relation.isAvailableAt | University of Maryland (College Park, Md.) | en_US |
| dc.relation.isAvailableAt | Tech Reports in Computer Science and Engineering | en_US |
| dc.relation.isAvailableAt | UMIACS Technical Reports | en_US |
| dc.relation.ispartofseries | UM Computer Science Department; CS-TR-3384 | en_US |
| dc.relation.ispartofseries | UMIACS; UMIACS-TR-94-133. | en_US |
| dc.title | Parallel Algorithms for Image Histogramming and Connected Components with an Experimental Study | en_US |
| dc.type | Technical Report | en_US |