Search Results for author: Shadrokh Samavi

Found 74 papers, 7 papers with code

Blind Stereo Image Quality Assessment Inspired by Brain Sensory-Motor Fusion

no code implementations3 Sep 2017 Maryam Karimi, Najmeh Soltanian, Shadrokh Samavi, Nader Karimi, S. M. Reza Soroushmehr, Kayvan Najarian

Then, a stacked neural network model is proposed, which learns the extracted features and accurately evaluates the quality of stereo images.

Image Quality Assessment

Adaptive Real-Time Removal of Impulse Noise in Medical Images

no code implementations6 Sep 2017 Zohreh HosseinKhani, Mohsen Hajabdollahi, Nader Karimi, Reza Soroushmehr, Shahram Shirani, Kayvan Najarian, Shadrokh Samavi

In this paper a low complexity de-noising method is proposed that removes the noise by local analysis of the image blocks.

Vessel Segmentation and Catheter Detection in X-Ray Angiograms Using Superpixels

no code implementations8 Sep 2017 Hamid R. Fazlali, Nader Karimi, S. M. Reza Soroushmehr, Shahram Shirani, Brahmajee. K. Nallamothu, Kevin R. Ward, Shadrokh Samavi, Kayvan Najarian

In this framework we use our catheter detection and tracking method which detects the catheter by finding its ridge in the first frame and traces in other frames by fitting a second order polynomial on it.

Segmentation Superpixels

Hardware design for binarization and thinning of fingerprint images

no code implementations12 Oct 2017 Farshad Kheiri, Shadrokh Samavi, Nader Karimi

Two critical steps in fingerprint recognition are binarization and thinning of the image.

Binarization

Real time ridge orientation estimation for fingerprint images

no code implementations13 Oct 2017 Eman Alibeigi, Shadrokh Samavi, Shahram Shirani, Zahra Rahmani

Most of the automatic verification systems are based on matching of fingerprint minutiae.

Polyp detection inside the capsule endoscopy: an approach for power consumption reduction

no code implementations29 Dec 2017 Mohammad Amin Khorsandi, Nader Karimi, Shadrokh Samavi

The proposed method is devoid of complex and iterative structure to save power and reduce the response time.

Context aware saliency map generation using semantic segmentation

no code implementations31 Dec 2017 Mahdi Ahmadi, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi

In this paper a saliency map is proposed, based on image context detection using semantic segmentation as a high level feature.

General Classification Image Classification +2

Reversible Image Watermarking for Health Informatics Systems Using Distortion Compensation in Wavelet Domain

no code implementations21 Feb 2018 Hamidreza Zarrabi, Mohsen Hajabdollahi, S. M. Reza Soroushmehr, Nader Karimi, Shadrokh Samavi, Kayvan Najarian

In this study a reversible watermarking is investigated with focusing on increasing the embedding capacity and reducing the distortion in medical images.

Adaptive specular reflection detection and inpainting in colonoscopy video frames

no code implementations23 Feb 2018 Mojtaba Akbari, Majid Mohrekesh, S. M. Reza Soroushmehr, Nader Karimi, Shadrokh Samavi, Kayvan Najarian

In the detection phase, we employ both HSV and RGB color space information for segmentation of specular reflections.

Multiple Abnormality Detection for Automatic Medical Image Diagnosis Using Bifurcated Convolutional Neural Network

no code implementations16 Sep 2018 Mohsen Hajabdollahi, Reza Esfandiarpoor, Elyas Sabeti, Nader Karimi, Kayvan Najarian, S. M. Reza Soroushmehr, Shadrokh Samavi

In recent years portable medical imaging devices such as capsule endoscopy and digital dermatoscope have been introduced and made the diagnosis procedure easier and more efficient.

Anomaly Detection General Classification +1

Artistic Instance-Aware Image Filtering by Convolutional Neural Networks

no code implementations22 Sep 2018 Milad Tehrani, Mahnoosh Bagheri, Mahdi Ahmadi, Alireza Norouzi, Nader Karimi, Shadrokh Samavi

In this paper, we utilize an instance segmentation neural network to obtain a class mask for separately filtering the background and foreground of an image.

Instance Segmentation object-detection +3

ReDMark: Framework for Residual Diffusion Watermarking on Deep Networks

1 code implementation16 Oct 2018 Mahdi Ahmadi, Alireza Norouzi, S. M. Reza Soroushmehr, Nader Karimi, Kayvan Najarian, Shadrokh Samavi, Ali Emami

Due to the rapid growth of machine learning tools and specifically deep networks in various computer vision and image processing areas, application of Convolutional Neural Networks for watermarking have recently emerged.

Fault-Tolerant Routing in Hypercube Networks by Avoiding Faulty Nodes

no code implementations1 May 2019 Shadrokh Samavi, Pejman Khadivi

In this paper, a neural routing method is introduced which is named as Fault Avoidance Routing (FAR).

Fetal Ultrasound Image Segmentation for Measuring Biometric Parameters Using Multi-Task Deep Learning

no code implementations31 Aug 2019 Zahra Sobhaninia, Shima Rafiei, Ali Emami, Nader Karimi, Kayvan Najarian, Shadrokh Samavi, S. M. Reza Soroushmehr

Ultrasound imaging is a standard examination during pregnancy that can be used for measuring specific biometric parameters towards prenatal diagnosis and estimating gestational age.

Image Segmentation Segmentation +1

Robustness and Imperceptibility Enhancement in Watermarked Images by Color Transformation

no code implementations2 Nov 2019 Maedeh Jamali, Mahnoosh Bagheri, Nader Karimi, Shadrokh Samavi

In this research work, we have used color space conversion and frequency transform to achieve high robustness and transparency.

Localization of Fetal Head in Ultrasound Images by Multiscale View and Deep Neural Networks

no code implementations3 Nov 2019 Zahra Sobhaninia, Ali Emami, Nader Karimi, Shadrokh Samavi

One of the routine examinations that are used for prenatal care in many countries is ultrasound imaging.

Gland Segmentation in Histopathological Images by Deep Neural Network

no code implementations3 Nov 2019 Safiye Rezaei, Ali Emami, Nader Karimi, Shadrokh Samavi

Histology method is vital in the diagnosis and prognosis of cancers and many other diseases.

Segmentation

Saliency Based Fire Detection Using Texture and Color Features

no code implementations20 Dec 2019 Maedeh Jamali, Nader Karimi, Shadrokh Samavi

We use the HSV color model as a spatial feature and LBP-TOP for temporal processing of fire texture.

Fire Detection

An Abstraction Model for Semantic Segmentation Algorithms

no code implementations27 Dec 2019 Reihaneh Teymoori, Zahra Nabizadeh, Nader Karimi, Shadrokh Samavi

We also compare different approaches and analyze each of the four abstraction blocks' importance in each method's operation.

Segmentation Self-Driving Cars +1

A General Framework for Saliency Detection Methods

no code implementations27 Dec 2019 Fateme Mostafaie, Zahra Nabizadeh, Nader Karimi, Shadrokh Samavi

Saliency detection is one of the most challenging problems in image analysis and computer vision.

Saliency Detection

Modeling Neural Architecture Search Methods for Deep Networks

no code implementations31 Dec 2019 Emad Malekhosseini, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi

There are many research works on the designing of architectures for the deep neural networks (DNN), which are named neural architecture search (NAS) methods.

Neural Architecture Search

Adaptive Control of Embedding Strength in Image Watermarking using Neural Networks

no code implementations9 Jan 2020 Mahnoosh Bagheri, Majid Mohrekesh, Nader Karimi, Shadrokh Samavi

Digital image watermarking has been widely used in different applications such as copyright protection of digital media, such as audio, image, and video files.

Image Inpainting by Multiscale Spline Interpolation

no code implementations10 Jan 2020 Ghazale Ghorbanzade, Zahra Nabizadeh, Nader Karimi, Shadrokh Samavi

The first step of this method is to determine how many scales we need to use, which depends on the width of the lines in the map of the missing region.

Image Inpainting

Modeling of Pruning Techniques for Deep Neural Networks Simplification

no code implementations13 Jan 2020 Morteza Mousa Pasandi, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi

In this paper pruning methods are investigated, and a general model which is contained the majority of pruning techniques is proposed.

Convolutional Neural Network Pruning Using Filter Attenuation

no code implementations9 Feb 2020 Morteza Mousa-Pasandi, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi, Shahram Shirani

In the proposed attenuation approach, weak filters are not abruptly removed, and there is a chance for these filters to return to the network.

Image Classification Network Pruning

Splitting Convolutional Neural Network Structures for Efficient Inference

no code implementations9 Feb 2020 Emad Malekhosseini, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi, Shahram Shirani

For convolutional neural networks (CNNs) that have a large volume of input data, memory management becomes a major concern.

Management

Unlabeled Data Deployment for Classification of Diabetic Retinopathy Images Using Knowledge Transfer

no code implementations9 Feb 2020 Sajjad Abbasi, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi, Shahram Shirani

Knowledge distillation is recently proposed to transfer the knowledge of a model to another one and can be useful to cover the shortcomings of transfer learning.

General Classification Knowledge Distillation +1

Region of Interest Identification for Brain Tumors in Magnetic Resonance Images

no code implementations26 Feb 2020 Fateme Mostafaie, Reihaneh Teimouri, Zahra Nabizadeh, Nader Karimi, Shadrokh Samavi

Glioma is a common type of brain tumor, and accurate detection of it plays a vital role in the diagnosis and treatment process.

Brain Segmentation Segmentation +1

Acceleration of Convolutional Neural Network Using FFT-Based Split Convolutions

no code implementations27 Mar 2020 Kamran Chitsaz, Mohsen Hajabdollahi, Nader Karimi, Shadrokh Samavi, Shahram Shirani

In this paper, a new method for CNN processing in the FFT domain is proposed, which is based on input splitting.

Quantization

Weighted Fuzzy-Based PSNR for Watermarking

no code implementations21 Jan 2021 Maedeh Jamali, Nader Karimi, Shadrokh Samavi

One of the problems of conventional visual quality evaluation criteria such as PSNR and MSE is the lack of appropriate standards based on the human visual system (HVS).

Compound Frechet Inception Distance for Quality Assessment of GAN Created Images

no code implementations16 Jun 2021 Eric J. Nunn, Pejman Khadivi, Shadrokh Samavi

Our proposed method integrates three levels of feature abstractions to evaluate the quality of generated images.

Adaptive search area for fast motion estimation

no code implementations9 Apr 2022 S. M. Reza Soroushmehr, Shadrokh Samavi, Shahram Shirani

This search area is similar to that of the full search (FS) algorithm but smaller for most blocks of a frame.

Motion Estimation

OAIR: Object-Aware Image Retargeting Using PSO and Aesthetic Quality Assessment

1 code implementation11 Sep 2022 Mohammad Reza Naderi, Mohammad Hossein Givkashi, Nader Karimi, Shahram Shirani, Shadrokh Samavi

The PSO algorithm uses aesthetic quality assessment as its objective function to identify the best location and size for the objects to be placed in the background.

Image Quality Assessment Image Retargeting +1

Dynamic-Pix2Pix: Noise Injected cGAN for Modeling Input and Target Domain Joint Distributions with Limited Training Data

1 code implementation15 Nov 2022 Mohammadreza Naderi, Nader Karimi, Ali Emami, Shahram Shirani, Shadrokh Samavi

Helping the cGAN learn the target distribution from noise input results in a better model generalization during the test time and allows the model to fit almost perfectly to the target domain distribution.

Domain Generalization

Focal-UNet: UNet-like Focal Modulation for Medical Image Segmentation

1 code implementation19 Dec 2022 Mohammadreza Naderi, MohammadHossein Givkashi, Fatemeh Piri, Nader Karimi, Shadrokh Samavi

Recently, many attempts have been made to construct a transformer base U-shaped architecture, and new methods have been proposed that outperformed CNN-based rivals.

Image Segmentation Medical Image Segmentation +1

Lossless Microarray Image Compression by Hardware Array Compactor

no code implementations18 Mar 2023 Anahita Banaei, Shadrokh Samavi, Ebrahim Nasr Esfahani

In this paper, we offer a new architecture for the lossless compression of microarray images.

Image Compression

High-Quality Live Video Streaming via Transcoding Time Prediction and Preset Selection

no code implementations8 Dec 2023 Zahra Nabizadeh Shahre-Babak, Nader Karimi, Krishna Rapaka, Tarek Amara, Shadrokh Samavi, Shahram Shirani

One solution is to predict each preset's transcoding time and select the preset that ensures the highest quality while adhering to live streaming time constraints.

Revealing Shadows: Low-Light Image Enhancement Using Self-Calibrated Illumination

no code implementations23 Dec 2023 Farzaneh Koohestani, Nader Karimi, Shadrokh Samavi

In digital imaging, enhancing visual content in poorly lit environments is a significant challenge, as images often suffer from inadequate brightness, hidden details, and an overall reduction in quality.

Low-Light Image Enhancement

A lightweight deep learning pipeline with DRDA-Net and MobileNet for breast cancer classification

no code implementations17 Mar 2024 Mahdie Ahmadi, Nader Karimi, Shadrokh Samavi

This combined approach offers a promising solution for accurate breast cancer diagnosis, paving the way for faster and more accessible screening procedures.

Computational Efficiency

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