Eylem Seç
Variational Models with Elastica Energies: A Comparison, a New Model and New Algorithms
Başlık:
Variational Models with Elastica Energies: A Comparison, a New Model and New Algorithms
Yazar:
He, Xuan, author.
ISBN:
9780438040786
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (84 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Advisors: WEI ZHU Committee members: Layach Hadji; Fei Hu; Min Sun; Shan Zhao; Wei Zhu.
Özet:
This work comprises two parts. In the first part, we propose novel ALM based algorithms for the ECV-L1 and ECV- L2 segmentation models in order to compare their performance. By imposing one extra constraint, we develop novel augmented Lagrangian functionals that ensure the segmentation level set function to be signed distance functions, which avoids the reinitialization of segmentation function during the iterative process. With the proposed algorithm and with the same initial contours, we compare the performance of these two high-order segmentation models and numerically verify the different properties of the two models. Following our previous work, in the second part, we propose a new denoising model with L 1 Elastica as the regularizer with corner preserving property. We develop a novel ADMM based algorithm with every subproblem being solved in a closed form. The numerical results on synthetic and real-life images verify the theoretical analysis and show that the model outperforms ROF in preserving contrast. They also show that the new algorithm has fast convergence rate.
Notlar:
School code: 0004
Konu Başlığı:
Tüzel Kişi Ek Girişi:
Mevcut:*
Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(678794.1) | 678794-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
On Order
Liste seç
Bunu varsayılan liste yap.
Öğeler başarıyla eklendi
Öğeler eklenirken hata oldu. Lütfen tekrar deneyiniz.
:
Select An Item
Data usage warning: You will receive one text message for each title you selected.
Standard text messaging rates apply.