Search Results for author: Navid Alemi Koohbanani

Found 12 papers, 3 papers with code

LYSTO: The Lymphocyte Assessment Hackathon and Benchmark Dataset

no code implementations16 Jan 2023 Yiping Jiao, Jeroen van der Laak, Shadi Albarqouni, Zhang Li, Tao Tan, Abhir Bhalerao, Jiabo Ma, Jiamei Sun, Johnathan Pocock, Josien P. W. Pluim, Navid Alemi Koohbanani, Raja Muhammad Saad Bashir, Shan E Ahmed Raza, Sibo Liu, Simon Graham, Suzanne Wetstein, Syed Ali Khurram, Thomas Watson, Nasir Rajpoot, Mitko Veta, Francesco Ciompi

Additionally, we present post-competition results where we show how the presented methods perform on an independent set of lung cancer slides, which was not part of the initial competition, as well as a comparison on lymphocyte assessment between presented methods and a panel of pathologists.

Robust Interactive Semantic Segmentation of Pathology Images with Minimal User Input

no code implementations30 Aug 2021 Mostafa Jahanifar, Neda Zamani Tajeddin, Navid Alemi Koohbanani, Nasir Rajpoot

From the simple measurement of tissue attributes in pathology workflow to designing an explainable diagnostic/prognostic AI tool, access to accurate semantic segmentation of tissue regions in histology images is a prerequisite.

Interactive Segmentation Segmentation +1

Self-Path: Self-supervision for Classification of Pathology Images with Limited Annotations

no code implementations12 Aug 2020 Navid Alemi Koohbanani, Balagopal Unnikrishnan, Syed Ali Khurram, Pavitra Krishnaswamy, Nasir Rajpoot

In this paper, we propose a self-supervised CNN approach to leverage unlabeled data for learning generalizable and domain invariant representations in pathology images.

Domain Adaptation General Classification +1

NuClick: A Deep Learning Framework for Interactive Segmentation of Microscopy Images

4 code implementations29 May 2020 Navid Alemi Koohbanani, Mostafa Jahanifar, Neda Zamani Tajadin, Nasir Rajpoot

As nuclei, cells and glands are fundamental objects for downstream analysis in computational pathology/cytology, in this paper we propose a simple CNN-based approach to speed up collecting annotations for these objects which requires minimum interaction from the annotator.

Instance Segmentation Interactive Segmentation +1

PanNuke Dataset Extension, Insights and Baselines

8 code implementations24 Mar 2020 Jevgenij Gamper, Navid Alemi Koohbanani, Ksenija Benes, Simon Graham, Mostafa Jahanifar, Syed Ali Khurram, Ayesha Azam, Katherine Hewitt, Nasir Rajpoot

The emerging area of computational pathology (CPath) is ripe ground for the application of deep learning (DL) methods to healthcare due to the sheer volume of raw pixel data in whole-slide images (WSIs) of cancerous tissue slides.

Selection bias whole slide images

NuClick: From Clicks in the Nuclei to Nuclear Boundaries

no code implementations7 Sep 2019 Mostafa Jahanifar, Navid Alemi Koohbanani, Nasir Rajpoot

Best performing nuclear segmentation methods are based on deep learning algorithms that require a large amount of annotated data.

Instance Segmentation Nuclear Segmentation +2

CGC-Net: Cell Graph Convolutional Network for Grading of Colorectal Cancer Histology Images

1 code implementation3 Sep 2019 Yanning Zhou, Simon Graham, Navid Alemi Koohbanani, Muhammad Shaban, Pheng-Ann Heng, Nasir Rajpoot

Furthermore, to deal with redundancy in the graph, we propose a sampling technique that removes nodes in areas of dense nuclear activity.

Nuclear Instance Segmentation using a Proposal-Free Spatially Aware Deep Learning Framework

no code implementations27 Aug 2019 Navid Alemi Koohbanani, Mostafa Jahanifar, Ali Gooya, Nasir Rajpoot

Spectral clustering method is applied on the output of the last SpaNet, which utilizes the nuclear mask and the Gaussian-like detection map for determining the connected components and associated cluster identifiers, respectively.

Clustering Instance Segmentation +3

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