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Pansharpening aims to fuse a multispectral (MS) image with an associated panchromatic (PAN) image, producing a composite image with the spectral resolution of the former and the spatial resolution of the latter. Traditional pansharpening…

图像与视频处理 · 电气工程与系统科学 2018-06-26 Lin He , Yizhou Rao , Jun Li , Antonio Plaza , Jiawei Zhu

A common approach to medical image analysis on volumetric data uses deep 2D convolutional neural networks (CNNs). This is largely attributed to the challenges imposed by the nature of the 3D data: variable volume size, GPU exhaustion during…

图像与视频处理 · 电气工程与系统科学 2020-07-28 Hasib Zunair , Aimon Rahman , Nabeel Mohammed , Joseph Paul Cohen

Monocular depth estimation is an ambiguous problem, thus global structural cues play an important role in current data-driven single-view depth estimation methods. Panorama images capture the complete spatial information of their…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Meng Li , Senbo Wang , Weihao Yuan , Weichao Shen , Zhe Sheng , Zilong Dong

Multi-centre colonoscopy images from various medical centres exhibit distinct complicating factors and overlays that impact the image content, contingent on the specific acquisition centre. Existing Deep Segmentation networks struggle to…

图像与视频处理 · 电气工程与系统科学 2023-08-31 Valentina Corbetta , Regina Beets-Tan , Wilson Silva

Monocular depth estimation in colonoscopy video aims to overcome the unusual lighting properties of the colonoscopic environment. One of the major challenges in this area is the domain gap between annotated but unrealistic synthetic data…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Shuxian Wang , Akshay Paruchuri , Zhaoxi Zhang , Sarah McGill , Roni Sengupta

Identifying polyps is challenging for automatic analysis of endoscopic images in computer-aided clinical support systems. Models based on convolutional networks (CNN), transformers, and their combinations have been proposed to segment…

计算机视觉与模式识别 · 计算机科学 2022-06-08 Nguyen Thanh Duc , Nguyen Thi Oanh , Nguyen Thi Thuy , Tran Minh Triet , Dinh Viet Sang

Automatic tumor segmentation is a crucial step in medical image analysis for computer-aided diagnosis. Although the existing methods based on convolutional neural networks (CNNs) have achieved the state-of-the-art performance, many…

图像与视频处理 · 电气工程与系统科学 2020-05-11 Shuchao Pang , Anan Du , Mehmet A. Orgun , Yan Wang , Quanzheng Sheng , Shoujin Wang , Xiaoshui Huang , Zhemei Yu

Computerized detection of colonic polyps remains an unsolved issue because of the wide variation in the appearance, texture, color, size, and presence of the multiple polyp-like imitators during colonoscopy. In this paper, we propose a deep…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Tariq Rahim , Syed Ali Hassan , Soo Young Shin

In order to improve model accuracy, generalization, and class imbalance issues, this work offers a strong methodology for classifying endoscopic images. We suggest a hybrid feature extraction method that combines convolutional neural…

图像与视频处理 · 电气工程与系统科学 2024-11-06 Bidisha Chakraborty , Shree Mitra

Depth estimation from monocular images is a challenging problem in computer vision. In this paper, we tackle this problem using a novel network architecture using multi scale feature fusion. Our network uses two different blocks, first…

计算机视觉与模式识别 · 计算机科学 2020-09-22 Abhinav Sagar

Monocular depth estimation is a challenging task in complex compositions depicting multiple objects of diverse scales. Albeit the recent great progress thanks to the deep convolutional neural networks (CNNs), the state-of-the-art monocular…

计算机视觉与模式识别 · 计算机科学 2017-08-09 Bo Li , Yuchao Dai , Mingyi He

Colonoscopy is a procedure to detect colorectal polyps which are the primary cause for developing colorectal cancer. However, polyp segmentation is a challenging task due to the diverse shape, size, color, and texture of polyps, shuttle…

图像与视频处理 · 电气工程与系统科学 2021-05-04 Krushi Patel , Andres M. Bur , Guanghui Wang

Estimating depth information from endoscopic images is a prerequisite for a wide set of AI-assisted technologies, such as accurate localization and measurement of tumors, or identification of non-inspected areas. As the domain specificity…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Javier Rodríguez-Puigvert , David Recasens , Javier Civera , Rubén Martínez-Cantín

Colorectal cancer is the third most common cause of cancer death worldwide. Optical colonoscopy is the gold standard for detecting colorectal cancer; however, about 25 percent of polyps are missed during the procedure. A vision-based…

图像与视频处理 · 电气工程与系统科学 2023-01-20 Alwyn Mathew , Ludovic Magerand , Emanuele Trucco , Luigi Manfredi

Precise segmentation of medical images is fundamental for extracting critical clinical information, which plays a pivotal role in enhancing the accuracy of diagnoses, formulating effective treatment plans, and improving patient outcomes.…

图像与视频处理 · 电气工程与系统科学 2024-06-21 Jintong Hu , Siyan Chen , Zhiyi Pan , Sen Zeng , Wenming Yang

The convolutional neural network-based methods have become more and more popular for medical image segmentation due to their outstanding performance. However, they struggle with capturing long-range dependencies, which are essential for…

图像与视频处理 · 电气工程与系统科学 2024-01-30 Hongkun Sun , Jing Xu , Yuping Duan

Scale-aware monocular depth estimation poses a significant challenge in computer-aided endoscopic navigation. However, existing depth estimation methods that do not consider the geometric priors struggle to learn the absolute scale from…

计算机视觉与模式识别 · 计算机科学 2024-08-15 Ruofeng Wei , Bin Li , Kai Chen , Yiyao Ma , Yunhui Liu , Qi Dou

Automatic detection of polyps is challenging because different polyps vary greatly, while the changes between polyps and their analogues are small. The state-of-the-art methods are based on convolutional neural networks (CNNs). However,…

计算机视觉与模式识别 · 计算机科学 2022-01-26 Jianwei Xu , Ran Zhao , Yizhou Yu , Qingwei Zhang , Xianzhang Bian , Jun Wang , Zhizheng Ge , Dahong Qian

Convolutional Neural Networks (CNNs) have advanced significantly in visual representation learning and recognition. However, they face notable challenges in performance and computational efficiency when dealing with real-world, multi-scale…

计算机视觉与模式识别 · 计算机科学 2024-03-28 Wenzhuo Liu , Fei Zhu , Cheng-Lin Liu

Organ segmentation in CT volumes is an important pre-processing step in many computer assisted intervention and diagnosis methods. In recent years, convolutional neural networks have dominated the state of the art in this task. However,…

图像与视频处理 · 电气工程与系统科学 2020-12-08 Roger D. Soberanis-Mukul , Nassir Navab , Shadi Albarqouni