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This paper considers making active learning more sensible from a medical perspective. In practice, a disease manifests itself in different forms across patient cohorts. Existing frameworks have primarily used mathematical constructs to…

Image and Video Processing · Electrical Eng. & Systems 2022-06-28 Yash-yee Logan , Ryan Benkert , Ahmad Mustafa , Gukyeong Kwon , Ghassan AlRegib

An attention guided scheme for metal artifact correction in MRI using deep neural network is proposed in this paper. The inputs of the networks are two distorted images obtained with dual-polarity readout gradients. With MR image generation…

Image and Video Processing · Electrical Eng. & Systems 2019-10-22 Jee Won Kim , Kinam Kwon , Byungjai Kim , HyunWook Park

Purpose: (1) To develop a deep learning algorithm to automatically segment structures of the optic nerve head (ONH) and macula in 3D wide-field optical coherence tomography (OCT) scans; (2) To assess whether 3D macula or ONH structures (or…

Optical Coherence Tomography Angiography (OCTA) is a crucial tool in the clinical screening of retinal diseases, allowing for accurate 3D imaging of blood vessels through non-invasive scanning. However, the hardware-based approach for…

Image and Video Processing · Electrical Eng. & Systems 2024-08-22 Shuhan Li , Dong Zhang , Xiaomeng Li , Chubin Ou , Lin An , Yanwu Xu , Kwang-Ting Cheng

Multiple light scattering in tissue limits the penetration of optical coherence tomography (OCT) imaging. Here, we present in-vivo OCT imaging of a live mouse using wavefront shaping to enhance the penetration depth. A digital micro-mirror…

Computed tomography (CT) images containing metallic objects commonly show severe streaking and shadow artifacts. Metal artifacts are caused by nonlinear beam-hardening effects combined with other factors such as scatter and Poisson noise.…

Medical Physics · Physics 2017-08-02 Hyung Suk Park , Sung Min Lee , Hwa Pyung Kim , Jin Keun Seo

Fiber-form optics extends the high-resolution tomographic imaging capabilities of Optical Coherence Tomography (OCT) to the inside of the human body, i.e., endoscopic OCT. However, it still faces challenges due to the trade-off between…

Optics · Physics 2024-09-04 Chengfu Gu , Haoran Zhang , Qi Lan , Weiyi Zhang , Chang Liu , Jianlong Yang

Purpose: To improve the quality of images obtained via dynamic contrast-enhanced MRI (DCE-MRI) that include motion artifacts and blurring using a deep learning approach. Methods: A multi-channel convolutional neural network (MARC) based…

Computer Vision and Pattern Recognition · Computer Science 2020-03-02 Daiki Tamada , Marie-Luise Kromrey , Hiroshi Onishi , Utaroh Motosugi

Incomplete-view computed tomography (CT) can shorten the data acquisition time and allow scanning of large objects, including sparse-view and limited-angle scenarios, each with various settings, such as different view numbers or angular…

Image and Video Processing · Electrical Eng. & Systems 2024-03-13 Chenglong Ma , Zilong Li , Junjun He , Junping Zhang , Yi Zhang , Hongming Shan

Photon-counting spectral computed tomography is now clinically available. These new detectors come with the promise of higher contrast-to-noise ratio and spatial resolution and improved low-dose imaging. However, one important design…

Medical Physics · Physics 2023-02-03 Dennis Hein , Konstantinos Liappis , Fredrik Grönberg , Alma Eguizabal , Mats Persson

Retinal optical coherence tomography (OCT) images provide crucial insights into the health of the posterior ocular segment. Therefore, the advancement of automated image analysis methods is imperative to equip clinicians and researchers…

Image and Video Processing · Electrical Eng. & Systems 2024-02-16 Jiahao Wang , Hong Peng , Shengchao Chen , Sufen Ren

Optical coherence tomography (OCT) has proven to be a powerful technique for studying tissue morphology in ophthalmology, cardiology, and endomicroscopy. Its performance is limited by the fundamental trade-off between the imaging…

Optics · Physics 2008-02-27 Keisuke Goda , Daniel R. Solli , Bahram Jalali

Spinal surgery planning necessitates automatic segmentation of vertebrae in cone-beam computed tomography (CBCT), an intraoperative imaging modality that is widely used in intervention. However, CBCT images are of low-quality and…

Image and Video Processing · Electrical Eng. & Systems 2021-03-10 Yuanyuan Lyu , Haofu Liao , Heqin Zhu , S. Kevin Zhou

Deep learning has a great potential to alleviate diagnosis and prognosis for various clinical procedures. However, the lack of a sufficient number of medical images is the most common obstacle in conducting image-based analysis using deep…

Image and Video Processing · Electrical Eng. & Systems 2022-05-23 Marija Habijan , Irena Galic

In computer-assisted orthodontics, three-dimensional tooth models are required for many medical treatments. Tooth segmentation from cone-beam computed tomography (CBCT) images is a crucial step in constructing the models. However, CBCT…

Image and Video Processing · Electrical Eng. & Systems 2023-07-06 Jiaxiang Liu , Tianxiang Hu , Yang Feng , Wanghui Ding , Zuozhu Liu

Optical coherence tomography (OCT) is a non-invasive, high-resolution imaging technology that provides cross-sectional images of tissues. Dense acquisition of A-scans along the fast axis is required to obtain high digital resolution images.…

Image and Video Processing · Electrical Eng. & Systems 2024-06-04 Zezhao Guo , Zhanfang Zhao

Alterations in retinal layer thickness, measurable using Optical Coherence Tomography (OCT), have been associated with neurodegenerative diseases such as Alzheimer's disease (AD). While previous studies have mainly focused on segmented…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Yasemin Turkan , F. Boray Tek , M. Serdar Nazlı , Öykü Eren

Chromatic dispersion is a common problem to degrade the system resolution in optical coherence tomography (OCT). This study is to develop a deep learning network for automated dispersion compensation (ADC-Net) in OCT. The ADC-Net is based…

Automatic and accurate segmentation for retinal and choroidal layers of Optical Coherence Tomography (OCT) is crucial for detection of various ocular diseases. However, because of the variations in different equipments, OCT data obtained…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Jiexiang Wang , Cheng Bian , Meng Li , Xin Yang , Kai Ma , Wenao Ma , Jin Yuan , Xinghao Ding , Yefeng Zheng

Most deep learning models are data-driven and the excellent performance is highly dependent on the abundant and diverse datasets. However, it is very hard to obtain and label the datasets of some specific scenes or applications. If we train…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Tianxiao Zhang , Wenchi Ma , Guanghui Wang
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