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This study introduces a method for efficiently detecting objects within 3D point clouds using convolutional neural networks (CNNs). Our approach adopts a unique feature-centric voting mechanism to construct convolutional layers that…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Tianyi Lyu , Dian Gu , Peiyuan Chen , Yaoting Jiang , Zhenhong Zhang , Huadong Pang , Li Zhou , Yiping Dong

In this paper, we present a new approach for uncertainty-aware retinal layer segmentation in Optical Coherence Tomography (OCT) scans using probabilistic signed distance functions (SDF). Traditional pixel-wise and regression-based methods…

Image and Video Processing · Electrical Eng. & Systems 2024-12-09 Mohammad Mohaiminul Islam , Coen de Vente , Bart Liefers , Caroline Klaver , Erik J Bekkers , Clara I. Sánchez

Deep learning has shown great potential for automated medical image segmentation to improve the precision and speed of disease diagnostics. However, the task presents significant difficulties due to variations in the scale, shape, texture,…

Image and Video Processing · Electrical Eng. & Systems 2024-09-06 Shahzaib Iqbal , Tariq M. Khan , Syed S. Naqvi , Asim Naveed , Erik Meijering

Automatic segmentation of multiple organs and tumors from 3D medical images such as magnetic resonance imaging (MRI) and computed tomography (CT) scans using deep learning methods can aid in diagnosing and treating cancer. However, organs…

Image and Video Processing · Electrical Eng. & Systems 2022-07-25 Hao Li , Yang Nan , Javier Del Ser , Guang Yang

Segmentation of organs of interest in 3D medical images is necessary for accurate diagnosis and longitudinal studies. Though recent advances using deep learning have shown success for many segmentation tasks, large datasets are required for…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Soopil Kim , Sion An , Philip Chikontwe , Sang Hyun Park

Segmentation of lymphoma lesions is challenging due to their varied sizes and locations in whole-body PET scans. This work presents a fully-automated segmentation technique using a multi-center dataset of diffuse large B-cell lymphoma…

Reducing the bit-depth is an effective approach to lower the cost of optical coherence tomography (OCT) systems and increase the transmission efficiency in data acquisition and telemedicine. However, a low bit-depth will lead to the…

Image and Video Processing · Electrical Eng. & Systems 2021-02-03 Qiangjiang Hao , Kang Zhou , Jianlong Yang , Liyang Fang , Zhengjie Chai , Yuhui Ma , Yan Hu , Shenghua Gao , Jiang Liu

In recent years, there has been a growing interest in applying convolutional neural networks (CNNs) to low-level vision tasks such as denoising and super-resolution. Due to the coherent nature of the image formation process, optical…

Computer Vision and Pattern Recognition · Computer Science 2019-01-29 Ashkan Abbasi , Amirhassan Monadjemi , Leyuan Fang , Hossein Rabbani , Yi Zhang

Optical coherence tomography (OCT) suffers from speckle noise, causing the deterioration of image quality, especially in high-resolution modalities like visible light OCT (vis-OCT). The potential of conventional supervised deep learning…

Image and Video Processing · Electrical Eng. & Systems 2024-05-16 Lingyun Wang , Jose A Sahel , Shaohua Pi

Computed Tomography (CT) imaging technique is widely used in geological exploration, medical diagnosis and other fields. In practice, however, the resolution of CT image is usually limited by scanning devices and great expense. Super…

Computer Vision and Pattern Recognition · Computer Science 2020-01-29 Yukai Wang , Qizhi Teng , Xiaohai He , Junxi Feng , Tingrong Zhang

This paper introduces a deep architecture for segmenting 3D objects into their labeled semantic parts. Our architecture combines image-based Fully Convolutional Networks (FCNs) and surface-based Conditional Random Fields (CRFs) to yield…

Computer Vision and Pattern Recognition · Computer Science 2017-11-15 Evangelos Kalogerakis , Melinos Averkiou , Subhransu Maji , Siddhartha Chaudhuri

Ophthalmic images may contain identical-looking pathologies that can cause failure in automated techniques to distinguish different retinal degenerative diseases. Additionally, reliance on large annotated datasets and lack of knowledge…

Image and Video Processing · Electrical Eng. & Systems 2022-08-02 Sharif Amit Kamran , Khondker Fariha Hossain , Alireza Tavakkoli , Stewart Lee Zuckerbrod , Salah A. Baker

Automatic segmentation of fine-grained brain structures remains a challenging task. Current segmentation methods mainly utilize 2D and 3D deep neural networks. The 2D networks take image slices as input to produce coarse segmentation in…

Computer Vision and Pattern Recognition · Computer Science 2019-05-08 Yuemeng Li , Hangfan Liu , Hongming Li , Yong Fan

This research embarked on a comparative exploration of the holistic segmentation capabilities of Convolutional Neural Networks (CNNs) in both 2D and 3D formats, focusing on cystic fibrosis (CF) lesions. The study utilized data from two CF…

Image and Video Processing · Electrical Eng. & Systems 2024-08-13 Amel Imene Hadj Bouzid , Baudouin Denis de Senneville , Fabien Baldacci , Pascal Desbarats , Patrick Berger , Ilyes Benlala , Gaël Dournes

We present O-CNN, an Octree-based Convolutional Neural Network (CNN) for 3D shape analysis. Built upon the octree representation of 3D shapes, our method takes the average normal vectors of a 3D model sampled in the finest leaf octants as…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Peng-Shuai Wang , Yang Liu , Yu-Xiao Guo , Chun-Yu Sun , Xin Tong

Detailed whole brain segmentation is an essential quantitative technique, which provides a non-invasive way of measuring brain regions from a structural magnetic resonance imaging (MRI). Recently, deep convolution neural network (CNN) has…

Computer Vision and Pattern Recognition · Computer Science 2019-03-29 Yuankai Huo , Zhoubing Xu , Yunxi Xiong , Katherine Aboud , Prasanna Parvathaneni , Shunxing Bao , Camilo Bermudez , Susan M. Resnick , Laurie E. Cutting , Bennett A. Landman

Convolutional neural networks are state-of-the-art for various segmentation tasks. While for 2D images these networks are also computationally efficient, 3D convolutions have huge storage requirements and therefore, end-to-end training is…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Christoph Angermann , Markus Haltmeier

This paper presents a novel automated system that segments six sub-retinal layers from optical coherence tomography (OCT) image stacks of healthy patients and patients with diabetic macular edema (DME). First, each image in the OCT stack is…

Computer Vision and Pattern Recognition · Computer Science 2016-10-25 Sohini Roychowdhury , Dara D. Koozekanani , Michael Reinsbach , Keshab K. Parhi

Recently, foundation models have been introduced demonstrating various tasks in the field of computer vision. These models such as Segment Anything Model (SAM) are generalized models trained using huge datasets. Currently, ongoing research…

Computer Vision and Pattern Recognition · Computer Science 2023-06-23 Shurong Chai , Rahul Kumar Jain , Shiyu Teng , Jiaqing Liu , Yinhao Li , Tomoko Tateyama , Yen-wei Chen

Deep learning has become a valuable tool for the automation of certain medical image segmentation tasks, significantly relieving the workload of medical specialists. Some of these tasks require segmentation to be performed on a subset of…

Image and Video Processing · Electrical Eng. & Systems 2024-02-06 José Morano , Guilherme Aresta , Dmitrii Lachinov , Julia Mai , Ursula Schmidt-Erfurth , Hrvoje Bogunović
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