کنفرانس مهندسی برق ایران

صفحه اصلی / بیست و نهمین کنفرانس مهندسی برق ایران

Blind angle and angular range detection in planar and limited-view geometries for photoacoustic tomography

نویسندگان :

Soheil Hakakzadeh¹ Zahra Kavehvash²

1- دانشگاه صنعتی شریف 2- دانشگاه صنعتی شریف

کلمات کلیدی :

ultrasound transducers، photoacoustic source، blind angle، photoacoustic computed tomography

چکیده :

In this paper, the relationship between the position of ultrasound transducers from the photoacoustic source and the reconstructed image is investigated. Our studies have shown that the distance of the transducer and its location from the photoacoustic source specifically affects and is closely related to the quality of the reconstructed image of the source. Also, we introduce a concept called blind angle for photoacoustic computed tomography (PACT) that have planar or circular limited-view geometry. Complete and accurate equations of this relationship are presented in this paper for all different 2D photoacoustic geometries. The main source of these equations is the spherically of the ultrasound wave produced by the photoacoustic source. The result of these equations is that depending on the location of the transducers with respect to the photoacoustic source, the characteristics of the reconstructed image and the quality of the reconstruction of each point of the photoacoustic source can be accurately obtained, and the reason for these dependencies is fully explained. The results show that the more transducers receive the ultrasound wave produced by the photoacoustic source at more different angles, the higher the quality of the reconstructed image would become.

لیست مقالات

لیست مقالات بایگانی شده

Design of Dual-Band Triangular Microstrip Antenna Using Fractal Structure for Wi-Max and Wi-Fi Applications

Arian Mianji - Mohammad Bemani - Saeid Nikmehr - Ahmad Atashpaz Gargari

ردیابی اهداف کوچک مادون قرمز مبتنی بر فیلتر کالمن بهینه‌شده با الگوریتم نهنگ و ازدحام ذرات

نازنین بهمن جو - سعید خان‌کلانتری

تولید پایگاه داده مصنوعی برای مقره های الکتریکی از روی داده‌های تصویری با استفاده از شبکه‌های مولد تخاصمی

امیرحسین جراره - ابولفضل منافی - سعید شمقدری

Social Welfare Maximization with Demand Response Program Using Stackelberg Game Theory

Mahtab Seyyedi - Ebrahim Pirmoradi - Turaj Amraee

Electricity Tariff Volatility Mitigation Using Uncertainty-Diminution and Hedge Contracts along with Risk Management Policies

Majid Moazzami - Hossein Shahinzadeh - Majid Najafi - Zohreh Azani - Shohreh Azani - Gevork B. Gharehpetian

مدلسازی، تحلیل و شبیه سازی مبدل رزونانسی LC-LC با قابلیت همزمان جریان ثابت و ولتاژ ثابت در خروجی مناسب برای شارژ باتری

کامران داودی

A Transformer less Quadratic Boost DC-DC Converter with Continuous Input Current and a Few Number of Components, Based on Classical Boost and Cuk Converter Suitable for Renewable Applications

Saeed Mahdizadeh - Reza Sharifi Shahrivar - Hossein Gholizadeh - Ebrahim Afjei

Improved Model Predictive Control for the Three-Phase Grid-Connected Split-Source Inverter

Seyed Hamid Montazeri - Jafar Milimonfared - MohammadReza Zolghadri

ارائه روش بهینه سازی نوین جهت جایابی بهینه تولیدات پراکنده (DG) در شبکه توزیع بمنظور کمینه کردن اثر فروافتادگی ولتاژ

پژمان هاشمیان - عبدالرضا علیرضاپوری

Partial Image Encryption of Faces Based on Chaotic Maps and Elliptic Curve Cryptography

Ali Soleymani - Md Jan Nordin

بیشتر

ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 42.5.3