CAV block-column iterative method for computed tomographic (CT) problems | ||
| International Journal of Nonlinear Analysis and Applications | ||
| مقاله 4، دوره 17، شماره 6، شهریور 2026، صفحه 29-35 اصل مقاله (1.03 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2023.29520.4193 | ||
| نویسندگان | ||
| Shaghayegh Heidarzadeh؛ Touraj Nikazad* | ||
| School of Mathematics, Iran University of Science and Technology, Narmak, Tehran, Iran | ||
| چکیده | ||
| This study revolves around the investigation of tomography and its mathematical modelling. In this regard, the CAV block-column iterative algorithm is proposed to reconstruct a high-quality image of a specific object. Indeed, this algorithm is applied for solving the problem of image reconstruction associated with computed tomography (CT). Then, the effects of both the relaxation parameter and the number of blocks are investigated on the convergence speed and the control of the semi-convergence phenomenon in this kind of iterative algorithm. Results show that a significant improvement in convergence speed and relative error can be achieved by a suitable choice of the relaxation parameter value. | ||
| کلیدواژهها | ||
| Tomography؛ Component averaging (CAV) Iterative method؛ Relaxation parameter؛ Block-column algorithm؛ Semi-convergence phenomenon | ||
| مراجع | ||
|
| ||
|
آمار تعداد مشاهده مقاله: 284 تعداد دریافت فایل اصل مقاله: 548 |
||
| تعداد نشریات | 22 |
| تعداد شمارهها | 718 |
| تعداد مقالات | 10,319 |
| تعداد مشاهده مقاله | 72,327,379 |
| تعداد دریافت فایل اصل مقاله | 64,053,470 |