Ahmad Ayatollahi

Publication Activity (10 Years)

Years Active: 2005-2024
Publications (10 Years): 20

Top Topics

Medical Image Segmentation

Wavelet Transform

Intravascular Ultrasound

Action Recognition

Top Venues

Comput. Biol. Medicine

Multim. Tools Appl.

Publications

Ali Ezati, Mohammadreza Dezyani, Rajib Rana, Roozbeh Rajabi, Ahmad Ayatollahi
A Lightweight Attention-based Deep Network via Multi-Scale Feature Fusion for Multi-View Facial Expression Recognition. CoRR (2024)
A. Ebrahimi, Mohsen Nezhadshahbodaghi, Mohammad Reza Mosavi, Ahmad Ayatollahi
An Improved GPS/INS Integration Based on EKF and AI During GPS Outages. J. Circuits Syst. Comput. 33 (2) (2024)
Ahmad Ayatollahi, Sajjad Afrakhteh, Fatemeh Soltani, Ehsan Saleh
Sleep apnea detection from ECG signal using deep CNN-based structures. Evol. Syst. 14 (2) (2023)
Seyed Sajad Ashrafi, Shahriar B. Shokouhi, Ahmad Ayatollahi
Still image action recognition based on interactions between joints and objects. Multim. Tools Appl. 82 (17) (2023)
Mohammad Amir Eshraghi, Ahmad Ayatollahi, Shahriar Baradaran Shokouhi
COV-MobNets: a mobile networks ensemble model for diagnosis of COVID-19 based on chest X-ray images. BMC Medical Imaging 23 (1) (2023)
Omid Nejati Manzari, Hamid Ahmadabadi, Hossein Kashiani, Shahriar B. Shokouhi, Ahmad Ayatollahi
MedViT: A Robust Vision Transformer for Generalized Medical Image Classification. CoRR (2023)
Omid Nejati Manzari, Hamid Ahmadabadi, Hossein Kashiani, Shahriar B. Shokouhi, Ahmad Ayatollahi
MedViT: A robust vision transformer for generalized medical image classification. Comput. Biol. Medicine 157 (2023)
Hamid Ahmadabadi, Omid Nejati Manzari, Ahmad Ayatollahi
Distilling Knowledge from CNN-Transformer Models for Enhanced Human Action Recognition. CoRR (2023)
Saeideh Heydari, Ahmad Ayatollahi, Arezu Najafi, Mohammad Poorjafari
Detection of Drowsiness Using the Pulse Rate Variability of Finger. SN Comput. Sci. 3 (5) (2022)
Hojat Asgarian Dehkordi, Ali Soltani Nezhad, Hossein Kashiani, Shahriar Baradaran Shokouhi, Ahmad Ayatollahi
Multi-expert human action recognition with hierarchical super-class learning. Knowl. Based Syst. 250 (2022)
Reza Yousefi Mashhoor, Ahmad Ayatollahi
HeartSiam: A Domain Invariant Model for Heart Sound Classification. CoRR (2022)
Mohammad Reza Mosavi, Ahmad Ayatollahi, Sajjad Afrakhteh
An efficient method for classifying motor imagery using CPSO-trained ANFIS prediction. Evol. Syst. 12 (2) (2021)
Seyed Sajad Ashrafi, Shahriar B. Shokouhi, Ahmad Ayatollahi
Action recognition in still images using a multi-attention guided network with weakly supervised saliency detection. Multim. Tools Appl. 80 (21) (2021)
Hojat Asgarian Dehkordi, Ali Soltani Nezhad, Hossein Kashiani, Shahriar Baradaran Shokouhi, Ahmad Ayatollahi
Multi-Expert Human Action Recognition with Hierarchical Super-Class Learning. CoRR (2021)
Sajjad Afrakhteh, Mohammad Reza Mosavi, Mohammad Khishe, Ahmad Ayatollahi
Accurate Classification of EEG Signals Using Neural Networks Trained by Hybrid Population-physic-based Algorithm. Int. J. Autom. Comput. 17 (1) (2020)
Hossein Kashiani, Amir Abbas Hamidi Imani, Shahriar Baradaran Shokouhi, Ahmad Ayatollahi
Online Visual Tracking with One-Shot Context-Aware Domain Adaptation. CoRR (2020)
Ali Kermani, Ahmad Ayatollahi
A new nonparametric statistical approach to detect lumen and Media-Adventitia borders in intravascular ultrasound frames. Comput. Biol. Medicine 104 (2019)
Mohammad Habibi, Ahmad Ayatollahi, Niyoosha Dallalazar, Ali Kermani
Lumen boundary detection using neutrosophic c-means in IVOCT images. CoRR (2019)
Nima Torbati, Ahmad Ayatollahi
A transformation model based on dual-tree complex wavelet transform for non-rigid registration of 3D MRI images. Int. J. Wavelets Multiresolution Inf. Process. 17 (4) (2019)
Nima Torbati, Ahmad Ayatollahi, Parham Sadeghipour
Image-Based Gating of Intravascular Ultrasound Sequences Using the Phase Information of Dual-Tree Complex Wavelet Transform Coefficients. IEEE Trans. Medical Imaging 38 (12) (2019)
Hassan Faraji Baghtash, Ahmad Ayatollahi
A Zero-Pole Reposition Based, 0.95-mW, 68-dB, Linear-in-dB, Constant-Bandwidth Variable Gain Amplifier. Circuits Syst. Signal Process. 33 (5) (2014)
Nima Torbati, Ahmad Ayatollahi, Ali Kermani
An efficient neural network based method for medical image segmentation. Comput. Biol. Medicine 44 (2014)
S. Hassan Mirhosseini, Ahmad Ayatollahi
Design a 10-Bit 100MHz pipelined ADC using RB-OTA in 90nm CMOS technology. IEICE Electron. Express 9 (8) (2012)
Farid Yaghouby, Ahmad Ayatollahi, Reihaneh Bahramali, Maryam Yaghouby
Robust genetic programming-based detection of atrial fibrillation using RR intervals. Expert Syst. J. Knowl. Eng. 29 (2) (2012)
Amir H. Miremadi, Ahmad Ayatollahi, Adib Abrishamifar
A low voltage low power CMOS analog multiplier. NORCHIP (2011)
Ahmad Afifi, Ahmad Ayatollahi, Farshid Raissi
CMOL implementation of spiking neurons and spike-timing dependent plasticity. Int. J. Circuit Theory Appl. 39 (4) (2011)
Reza Sahraeian, Mehdi Mohammadi, Ahmad Akbari, Ahmad Ayatollahi
Evolutionary eigenvoice MLLR speaker adaptation. WCIT (2011)
Mohammad Talebi, Ahmad Ayatollahi
Genetic Snake for Medical Ultrasound Image Segmentation. ICIAR (2) (2011)
Ahmad Mirzaei, Ahmad Ayatollahi, Parisa Gifani, Leili Salehi
Spectral Entropy for Epileptic Seizures Detection. CICSyN (2010)
Ahmad Afifi, Ahmad Ayatollahi, Farshid Raissi, Hassan Hajghassem
Efficient Hybrid CMOS-Nano Circuit Design for Spiking Neurons and Memristive Synapses with STDP. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2010)
Reza Sahraeian, Behzad Zamani, Ahmad Akbari, Ahmad Ayatollahi, Babak Nasersharif
New Approach in Transform-Based Speaker Adaptation Using Minimum Classification Error. UKSim (2010)
Farid Yaghouby, Ahmad Ayatollahi, Reihaneh Bahramali, Maryam Yaghouby, Amir Hossein Alavi
Towards automatic detection of atrial fibrillation: A hybrid computational approach. Comput. Biol. Medicine 40 (11-12) (2010)
Amir HajiRassouliha, Ahmad Ayatollahi
Automatic Obtaining of Left Ventricular Area and Analyzing the Area Changes. ICDIP (2009)
Ali Mohammadi, Adib Abrishamifar, Ahmad Ayatollahi
A novel CMOS all-pass tunable phase shifter. ICECS (2009)
Ahmad Afifi, Ahmad Ayatollahi, Farshid Raissi
STDP implementation using memristive nanodevice in CMOS-Nano neuromorphic networks. IEICE Electron. Express 6 (3) (2009)
Ahmad Afifi, Ahmad Ayatollahi, Farshid Raissi
Implementation of biologically plausible spiking neural network models on the memristor crossbar-based CMOS/nano circuits. ECCTD (2009)
Amir HajiRassouliha, Ahmad Ayatollahi
Estimation of Changes in Left Ventricular Wall Thickness in Full Short Axis CMRI to Diagnosis Myocardium Infarctions. ICDIP (2009)
Mohammad Hamghalam, Ahmad Ayatollahi
Automatic Counting of Leukocytes in Giemsa-Stained Images of Peripheral Blood Smear. ICDIP (2009)
Ali Mohammadi, Ahmad Ayatollahi, Adib Abrishamifar
A new CMOS all-pass phase shifter for phased array systems. IEICE Electron. Express 6 (8) (2009)
Farhad Alibeygi Parsan, Ahmad Ayatollahi, Adib Abrishamifar
Investigating the linearity of MOSFET-only switched-capacitor DeltaSigma modulators under low-voltage condition. DDECS (2009)
Amir H. Miremadi, Ahmad Ayatollahi, Adib Abrishamifar, Alireza Siadatan
A low voltage CMOS analog multiplier with high linearity. ECCTD (2009)
Nima Derakhshan, Mohsen Rahmani, Ahmad Akbari, Ahmad Ayatollahi
An objective measure for the musical noise assessment in noise reduction systems. ICASSP (2009)
Nima Derakhshan, Ahmad Akbari, Ahmad Ayatollahi
Noise power spectrum estimation using constrained variance spectral smoothing and minima tracking. Speech Commun. 51 (11) (2009)
Peyman Rahmati, Ahmad Ayatollahi
Maximum Likelihood Active Contours Specialized for Mammography Segmentation. BMEI (2009)
Amir HajiRassouliha, Mehdi Amoon, Mohammad Hossein Doostmohammadi, Ali Sadr, Ahmad Ayatollahi, Gholam Ali Rezairad
Comparison of Using Different Types of Wavelet or FFT for De-nosing of Body Surface Potential Signals. BroadCom (2008)
Farhad Alibeygi Parsan, Ahmad Ayatollahi
A comparator-based switched-capacitor integrator using a new charge control circuit. SoCC (2008)
Sedigheh Ghofrani, Desmond C. McLernon, Ahmad Ayatollahi
Conditional spectral moments in matching pursuit based on the chirplet elementary function. Digit. Signal Process. 18 (5) (2008)
S. H. Sabzpoushan, Ahmad Ayatollahi, Denis Noble, P. J. Noble
A survey on linear relations between main electrical components during action potential in ventricular cell. Appl. Math. Comput. 188 (1) (2007)
Sedigheh Ghofrani, Desmond C. McLernon, Ahmad Ayatollahi
Estimation of Instantaneous Frequency and Instantaneous Bandwidth via Adaptive Signal Decomposition. ICASSP (3) (2006)
Hooman Kaabi, Mohammad Reza Jahed-Motlagh, Ahmad Ayatollahi
A novel current-conveyor-based switched-capacitor integrator. ISCAS (2) (2005)
Sedigheh Ghofrani, Desmond C. McLernon, Ahmad Ayatollahi
Weighted average instantaneous frequency based on adaptive signal decomposition. EUSIPCO (2005)
Sedigheh Ghofrani, Desmond C. McLernon, Ahmad Ayatollahi
On conditional spectral moments of Gaussian and damped sinusoidal atoms in adaptive signal decomposition. Signal Process. 85 (10) (2005)