0% Complete
صفحه اصلی
/
سی امین کنفرانس بین المللی مهندسی برق
Fast Adapted Delay and Sum Reconstruction Algorithm in Circular Photoacoustic Tomography
نویسندگان :
Soheil Hakakzadeh
1
Seyed masood Mostafavi
2
Zahra Kavehvash
3
1- دانشگاه صنعتی شریف
2- دانشگاه صنعتی شریف
3- دانشگاه صنعتی شریف
کلمات کلیدی :
Delay and sum algorithm،Universal back- projection،Circular scanning photoacoustic tomography،Edge uniformity index،Reconstruction algorithm.
چکیده :
Circular photoacoustic tomography (C-PAT) arrangements are widely used in PAT systems. Many algorithms are proposed for PAT to reconstruct images such as delay and sum (DAS), universal back-projection (UBP), etc., all suffering from their own disadvantages. In this paper, to overcome these limitations, we proposed a fast uniform adapted delay and sum (ADAS) and filtered adapted delay and sum (F-ADAS) for detectors with finite and infinite bandwidth, respectively. Moreover, the edge uniformity index (EUI) metric was proposed for quantitative evaluation. Two cases 1) infinite bandwidth and 25 dB SNR level and 2) 2.25 MHz, 80% bandwidth with the same SNR level were considered for numerical study. The simulation results indicate that by using ADAS and F-ADAS, EUI improves 17.3-39% for infinite bandwidth scenario and EUI value can reach the value of 1 in finite bandwidth scenario. Therefore, highly uniform reconstructed images can be thus obtained with our proposed algorithm.
لیست مقالات
لیست مقالات بایگانی شده
Modeling the Cable Bridge Based on Two Dimensional System and Analysing the Stability of Desired Model Based on Wave Advanced Model
Mehdi Mirshahi - Masoud Shafiee - Mehdi Mohammadi
Contextual and Spectral Feature Fusion Using Local Binary Graph for Hyperspectral Images Classification
Zahra Farmahini Farahani - Hassan Ghassemian - Maryam Imani
A New Method Based on Emprical Wavelet Transform in Order to Detect Current Transformer Saturation in Distance Relay
Amir Ali Ahmadi Pishkohi - Seyed Amir Hosseini - Behrooz Taheri
Enhancing SCGAN’s Disentangled Representation Learning with Contrastive SSIM Similarity Constraints
Iman Yazdanpanah - Ali Eslamian
مدل جامع مدیریت انرژی الکتریکی ریزشبکه مسکونی با استفاده از کنترل پیشبین مبتنی بر مدل
سینا رودنیل - سعید قاسمزاده - کاظم زارع - امیر امینزاده قوی فکر
الگوریتم تشخیصی برای طبقه بندی سرطان خون لوسمی لنفوسیتی حاد با استفاده از شبکه های عصبی عمیق در یادگیری آنلاین
رضا گودرزی - علی جلالی - امید هاشمی پورتفرشی
Binomial Distribution based K-means for Graph Partitioning Approach in Partially Reconfigurable Computing system
Zahra Asgari - Maryam Sadat Mastoori
طراحی و شبیه سازی شتاب سنج خازنی MEMS برای استفاده در سمعک های تمام کاشت
میلاد کریمی پور - مهدیه مهران
Investigation of Cross-coupling Effects on Grid-connected Inverters with LCL Filter Based on RGA Analysis
Ali Rezaei - Mohsen Hamzeh - Nima Mahdian Dehkordi
Scaled CR-(RC)n Digital Filter Design for Precision Pulse Processing in Spectroscopy Applications
MohammadReza Fazli - Nasser Masoumi - Hamid Rahimpour
بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 43.6.0
