Search Results for author: Mita Nasipuri

Found 66 papers, 4 papers with code

Regularizing CNNs using Confusion Penalty Based Label Smoothing for Histopathology Images

no code implementations16 Mar 2024 Somenath Kuiry, Alaka Das, Mita Nasipuri, Nibaran Das

Researchers propose regularizing techniques, such as Label Smoothing (LS), which introduces soft labels for training data, making the classifier more regularized.

COVID-CT-H-UNet: a novel COVID-19 CT segmentation network based on attention mechanism and Bi-category Hybrid loss

no code implementations16 Mar 2024 Anay Panja, Somenath Kuiry, Alaka Das, Mita Nasipuri, Nibaran Das

The typical Binary cross entropy(BCE) based U-shaped network only concentrates on the entire CT images without emphasizing on the affected regions, which results in hazy borders and low contrast in the projected output.

Segmentation

Hand Biometrics in Digital Forensics

no code implementations17 Feb 2024 Asish Bera, Debotosh Bhattacharjee, Mita Nasipuri

Biometric is a better solution to win over the problems encountered by digital forensics.

Finger Biometric Recognition With Feature Selection

no code implementations16 Dec 2023 Asish Bera, Debotosh Bhattacharjee, Mita Nasipuri

The best identification accuracy of 98. 67%, and equal error rate (EER) of 4. 6% have been achieved using the subset of 25 features which are selected by the rank-based local FoBa algorithm.

feature selection

Deep Neural Networks Fused with Textures for Image Classification

no code implementations3 Aug 2023 Asish Bera, Debotosh Bhattacharjee, Mita Nasipuri

Fine-grained image classification (FGIC) is a challenging task in computer vision for due to small visual differences among inter-subcategories, but, large intra-class variations.

Classification Fine-Grained Image Classification

Variational Augmentation for Enhancing Historical Document Image Binarization

1 code implementation12 Nov 2022 Avirup Dey, Nibaran Das, Mita Nasipuri

Historical Document Image Binarization is a well-known segmentation problem in image processing.

Binarization Segmentation +1

Spoofing Detection on Hand Images Using Quality Assessment

no code implementations22 Oct 2021 Asish Bera, Ratnadeep Dey, Debotosh Bhattacharjee, Mita Nasipuri, Hubert P. H. Shum

A presentation attack detection approach is addressed by assessing the visual quality of genuine and fake hand images.

Classification

GuideBP: Guiding Backpropagation Through Weaker Pathways of Parallel Logits

no code implementations23 Apr 2021 Bodhisatwa Mandal, Swarnendu Ghosh, Teresa Gonçalves, Paulo Quaresma, Mita Nasipuri, Nibaran Das

Convolutional neural networks often generate multiple logits and use simple techniques like addition or averaging for loss computation.

Exploring Knowledge Distillation of a Deep Neural Network for Multi-Script identification

no code implementations20 Feb 2021 Shuvayan Ghosh Dastidar, Kalpita Dutta, Nibaran Das, Mahantapas Kundu, Mita Nasipuri

In this paper, we explore dark knowledge transfer approach using long short-term memory(LSTM) and CNN based assistant model and various deep neural networks as the teacher model, with a simple CNN based student network, in this domain of multi-script identification from natural scene text images.

Knowledge Distillation Transfer Learning

Multispectral Object Detection with Deep Learning

no code implementations5 Feb 2021 Md Osman Gani, Somenath Kuiry, Alaka Das, Mita Nasipuri, Nibaran Das

Moving outside the visible spectrum range, such as the thermal spectrum or the near-infrared (NIR) images, is much more beneficial in low visibility conditions, NIR images are very helpful for understanding the object's material quality.

Data Augmentation Multispectral Object Detection +3

RectiNet-v2: A stacked network architecture for document image dewarping

no code implementations1 Feb 2021 Hmrishav Bandyopadhyay, Tanmoy Dasgupta, Nibaran Das, Mita Nasipuri

With the advent of mobile and hand-held cameras, document images have found their way into almost every domain.

Ranked #2 on SSIM on DocUNet

MS-SSIM SSIM

Handwritten Script Identification from Text Lines

no code implementations16 Sep 2020 Pawan Kumar Singh, Iman Chatterjee, Ram Sarkar, Mita Nasipuri

In a multilingual country like India where 12 different official scripts are in use, automatic identification of handwritten script facilitates many important applications such as automatic transcription of multilingual documents, searching for documents on the web/digital archives containing a particular script and for the selection of script specific Optical Character Recognition (OCR) system in a multilingual environment.

Optical Character Recognition Optical Character Recognition (OCR)

Two-phase Dynamic Routing for Micro and Macro-level Equivariance in Multi-Column Capsule Networks

no code implementations18 Aug 2020 Bodhisatwa Mandal, Ritesh Sarkhel, Swarnendu Ghosh, Nibaran Das, Mita Nasipuri

To address this, we propose a novel two-phase dynamic routing protocol that computes agreements between neurons at various layers for micro and macro-level features, following a hierarchical learning paradigm.

Image Classification

A Hybrid Swarm and Gravitation based feature selection algorithm for Handwritten Indic Script Classification problem

no code implementations10 May 2020 Ritam Guha, Manosij Ghosh, Pawan Kumar Singh, Ram Sarkar, Mita Nasipuri

In any multi-script environment, handwritten script classification is of paramount importance before the document images are fed to their respective Optical Character Recognition (OCR) engines.

Classification feature selection +3

Computational modeling of Human-nCoV protein-protein interaction network

no code implementations5 May 2020 Sovan Saha, Anup Kumar Halder, Soumyendu Sekhar Bandyopadhyay, Piyali Chatterjee, Mita Nasipuri, Subhadip Basu

With this hypothesis, the present work focuses on developing a computational model for nCoV-Human protein interaction network, using the experimentally validated SARS-CoV-Human protein interactions.

Specificity

Skin Diseases Detection using LBP and WLD- An Ensembling Approach

no code implementations8 Apr 2020 Arnab Banerjee, Nibaran Das, Mita Nasipuri

The ensemble approach clearly outperform all of the used deep learning networks.

Cytology Image Analysis Techniques Towards Automation: Systematically Revisited

no code implementations17 Mar 2020 Shyamali Mitra, Nibaran Das, Soumyajyoti Dey, Sukanta Chakrabarty, Mita Nasipuri, Mrinal Kanti Naskar

Cytology is the branch of pathology which deals with the microscopic examination of cells for diagnosis of carcinoma or inflammatory conditions.

EDC3: Ensemble of Deep-Classifiers using Class-specific Copula functions to Improve Semantic Image Segmentation

no code implementations12 Mar 2020 Somenath Kuiry, Nibaran Das, Alaka Das, Mita Nasipuri

In the literature, many fusion techniques are registered for the segmentation of images, but they primarily focus on observed output or belief score or probability score of the output classes.

Image Segmentation Segmentation +1

A Genetic Algorithm based Kernel-size Selection Approach for a Multi-column Convolutional Neural Network

1 code implementation28 Dec 2019 Animesh Singh, Sandip Saha, Ritesh Sarkhel, Mahantapas Kundu, Mita Nasipuri, Nibaran Das

Deep neural network-based architectures give promising results in various domains including pattern recognition.

Using dynamic routing to extract intermediate features for developing scalable capsule networks

no code implementations13 Jul 2019 Bodhisatwa Mandal, Swarnendu Ghosh, Ritesh Sarkhel, Nibaran Das, Mita Nasipuri

Capsule networks have gained a lot of popularity in short time due to its unique approach to model equivariant class specific properties as capsules from images.

Recognition of Offline Handwritten Devanagari Numerals using Regional Weighted Run Length Features

no code implementations29 Jun 2018 Pawan Kumar Singh, Supratim Das, Ram Sarkar, Mita Nasipuri

Recognition of handwritten Roman characters and numerals has been extensively studied in the last few decades and its accuracy reached to a satisfactory state.

Handwritten Isolated Bangla Compound Character Recognition: a new benchmark using a novel deep learning approach

no code implementations2 Feb 2018 Saikat Roy, Nibaran Das, Mahantapas Kundu, Mita Nasipuri

In this work, a novel deep learning technique for the recognition of handwritten Bangla isolated compound character is presented and a new benchmark of recognition accuracy on the CMATERdb 3. 1. 3. 3 dataset is reported.

A Harmony Search Based Wrapper Feature Selection Method for Holistic Bangla word Recognition

no code implementations26 Jul 2017 Supratim Das, Pawan Kumar Singh, Showmik Bhowmik, Ram Sarkar, Mita Nasipuri

In this paper, we introduced a Harmony Search (HS) algorithm based feature selection method for feature dimensionality reduction in handwritten Bangla word recognition problem.

Dimensionality Reduction Evolutionary Algorithms +2

A GA Based approach for selection of local features for recognition of handwritten Bangla numerals

no code implementations22 Jan 2015 Nibaran Das, Subhadip Basu, Punam Kumar Saha, Ram Sarkar, Mahantapas Kundu, Mita Nasipuri

In the current work we have developed a two-pass approach where the first pass classifier performs a coarse classification, based on some global features of the input pattern by restricting the possibility of classification decisions within a group of classes, smaller than the number of classes considered initially.

General Classification Handwritten Digit Recognition

An Improved Feature Descriptor for Recognition of Handwritten Bangla Alphabet

no code implementations22 Jan 2015 Nibaran Das, Subhadip Basu, Ram Sarkar, Mahantapas Kundu, Mita Nasipuri, Dipak Kumar Basu

Appropriate feature set for representation of pattern classes is one of the most important aspects of handwritten character recognition.

A two-pass fuzzy-geno approach to pattern classification

no code implementations15 Oct 2014 Subhadip Basu, Mahantapas Kundu, Mita Nasipuri, Dipak Kumar Basu

In this approach, an unknown pattern is classified by refining possible classification decisions obtained through coarse classification of the same.

Classification General Classification +1

Recognition of Handwritten Bangla Basic Characters and Digits using Convex Hull based Feature Set

no code implementations2 Oct 2014 Nibaran Das, Sandip Pramanik, Subhadip Basu, Punam Kumar Saha, Ram Sarkar, Mahantapas Kundu, Mita Nasipuri

The current research aims to evaluate the performance of the convex hull based feature set, i. e. 125 features in all computed over different bays attributes of the convex hull of a pattern, for effective recognition of isolated handwritten Bangla basic characters and digits.

A Gabor block based Kernel Discriminative Common Vector (KDCV) approach using cosine kernels for Human Face Recognition

no code implementations5 Dec 2013 Arindam Kar, Debotosh Bhattacharjee, Dipak Kumar Basu, Mita Nasipuri, Mahantapas Kundu

Secondly, the nonlinear discriminating features are analyzed and extracted from the selected low-energized blocks by the generalized Kernel Discriminative Common Vector (KDCV) method.

Face Recognition Image Classification

High Performance Human Face Recognition using Gabor based Pseudo Hidden Markov Model

no code implementations5 Dec 2013 Arindam Kar, Debotosh Bhattacharjee, Dipak Kumar Basu, Mita Nasipuri, Mahantapas Kundu

Unlike the traditional zigzag scanning method for feature extraction a continuous scanning method from top-left corner to right then top-down and right to left and so on until right-bottom of the image i. e. a spiral scanning technique has been proposed for better feature selection.

Face Recognition feature selection

A Face Recognition approach based on entropy estimate of the nonlinear DCT features in the Logarithm Domain together with Kernel Entropy Component Analysis

no code implementations5 Dec 2013 Arindam Kar, Debotosh Bhattacharjee, Dipak Kumar Basu, Mita Nasipuri, Mahantapas Kundu

This paper exploits the feature extraction capabilities of the discrete cosine transform (DCT) together with an illumination normalization approach in the logarithm domain that increase its robustness to variations in facial geometry and illumination.

Face Recognition Specificity

An adaptive block based integrated LDP,GLCM,and Morphological features for Face Recognition

no code implementations5 Dec 2013 Arindam Kar, Debotosh Bhattacharjee, Dipak Kumar Basu, Mita Nasipuri, Mahantapas Kundu

Firstly, the new morphological features i. e., features based on number of runs of pixels in four directions (N, NE, E, NW) are extracted, together with the GLCM based statistical features and LDP features that are less sensitive to the noise and non-monotonic illumination changes, are extracted from the significant blocks of the gradient image.

Dimensionality Reduction Face Recognition

Human Face Recognition using Gabor based Kernel Entropy Component Analysis

no code implementations5 Dec 2013 Arindam Kar, Debotosh Bhattacharjee, Dipak Kumar Basu, Mita Nasipuri, Mahantapas Kundu

In this paper, we present a novel Gabor wavelet based Kernel Entropy Component Analysis (KECA) method by integrating the Gabor wavelet transformation (GWT) of facial images with the KECA method for enhanced face recognition performance.

Face Recognition Image Classification

Automatic White Blood Cell Measuring Aid for Medical Diagnosis

no code implementations3 Dec 2013 Pramit Ghosh, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu

The objective of this work is to automate the blood related pathological investigation process.

Medical Diagnosis

Medical Aid for Automatic Detection of Malaria

no code implementations3 Dec 2013 Pramit Ghosh, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu

The analysis and counting of blood cells in a microscope image can provide useful information concerning to the health of a person.

Morphological Analysis

Detection of pose orientation across single and multiple axes in case of 3D face images

no code implementations18 Sep 2013 Parama Bagchi, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu

In this paper, we propose a new approach that takes as input a 3D face image across X, Y and Z axes as well as both Y and X axes and gives output as its pose i. e. it tells whether the face is oriented with respect the X, Y or Z axes or is it oriented across multiple axes with angles of rotation up to 42 degree.

A novel approach for nose tip detection using smoothing by weighted median filtering applied to 3D face images in variant poses

no code implementations18 Sep 2013 Parama Bagchi, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu

In this present smoothing technique we have built the neighborhood surrounding a particular point in 3D face and replaced that with the weighted value of the surrounding points in 3D face image.

A novel approach to nose-tip and eye corners detection using H-K Curvature Analysis in case of 3D images

no code implementations18 Sep 2013 Parama Bagchi, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu

In this paper we present a novel method that combines a HK curvature-based approach for three-dimensional (3D) face detection in different poses (X-axis, Y-axis and Z-axis).

Face Detection

Automated Thermal Face recognition based on Minutiae Extraction

no code implementations4 Sep 2013 Ayan Seal, Suranjan Ganguly, Debotosh Bhattacharjee, Mita Nasipuri, Dipak kr. Basu

Image processing methods are used to pre-process the captured thermogram, from which different physiological features based on blood perfusion data are extracted.

Face Recognition

Minutiae Based Thermal Human Face Recognition using Label Connected Component Algorithm

no code implementations4 Sep 2013 Ayan Seal, Suranjan Ganguly, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu

Secondly face features are extracted from the croped region, which will be taken as the input of the back propagation feed forward neural network in the third step and classification and recognition is carried out.

Face Recognition General Classification

Minutiae Based Thermal Face Recognition using Blood Perfusion Data

no code implementations4 Sep 2013 Ayan Seal, Mita Nasipuri, Debotosh Bhattacharjee, Dipak Kumar Basu

A distribution of blood vessels are unique for each person and as a set of extracted minutiae points from a blood perfusion data of a human face should be unique for that face.

Face Recognition General Classification

A Comparative Study of Human thermal face recognition based on Haar wavelet transform (HWT) and Local Binary Pattern (LBP)

no code implementations4 Sep 2013 Ayan Seal, Suranjan Ganguly, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu

In the first approach, the training images and the test images are processed with Haar wavelet transform and the LL band and the average of LH/HL/HH bands sub-images are created for each face image.

Face Recognition

High Performance Human Face Recognition using Independent High Intensity Gabor Wavelet Responses: A Statistical Approach

no code implementations17 Jun 2011 Arindam Kar, Debotosh Bhattacharjee, Dipak Kumar Basu, Mita Nasipuri, Mahantapas Kundu

In this paper, we present a technique by which high-intensity feature vectors extracted from the Gabor wavelet transformation of frontal face images, is combined together with Independent Component Analysis (ICA) for enhanced face recognition.

Face Recognition Image Classification +1

Next Level of Data Fusion for Human Face Recognition

no code implementations17 Jun 2011 Mrinal Kanti Bhowmik, Gautam Majumdar, Debotosh Bhattacharjee, Dipak Kumar Basu, Mita Nasipuri

This paper demonstrates two different fusion techniques at two different levels of a human face recognition process.

Face Recognition

Image Pixel Fusion for Human Face Recognition

no code implementations5 Jul 2010 Mrinal Kanti Bhowmik, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu, Mahantapas Kundu

In this paper we present a technique for fusion of optical and thermal face images based on image pixel fusion approach.

Face Recognition Object Tracking

Human Face Recognition using Line Features

no code implementations5 Jul 2010 Mrinal Kanti Bhowmik, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu, Mahantapas Kundu

Here, we have used thermal face images as those are capable to minimize the affect of illumination changes and occlusion due to moustache, beards, adornments etc.

Dimensionality Reduction Face Recognition +1

Fusion of Daubechies Wavelet Coefficients for Human Face Recognition

no code implementations5 Jul 2010 Mrinal Kanti Bhowmik, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu, Mahantapas Kundu

The main advantage of using wavelet transform is that it is well-suited to manage different image resolution and allows the image decomposition in different kinds of coefficients, while preserving the image information.

Face Recognition

Reduction of Feature Vectors Using Rough Set Theory for Human Face Recognition

no code implementations21 May 2010 Debotosh Bhattacharjee, Dipak Kumar Basu, Mita Nasipuri, M. Kundu

To reduce further we have applied feature selection method to select indispensable features, which will remain in the final feature vectors.

Face Recognition feature selection

A novel scheme for binarization of vehicle images using hierarchical histogram equalization technique

no code implementations31 Mar 2010 Satadal Saha, Subhadip Basu, Mita Nasipuri, Dipak Kumar Basu

Automatic License Plate Recognition system is a challenging area of research now-a-days and binarization is an integral and most important part of it.

Binarization License Plate Recognition

Development of an automated Red Light Violation Detection System (RLVDS) for Indian vehicles

no code implementations31 Mar 2010 Satadal Saha, Subhadip Basu, Mita Nasipuri, Dipak Kumar Basu

Integrated Traffic Management Systems (ITMS) are now implemented in different cities in India to primarily address the concerns of road-safety and security.

Management

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