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Clinical examinations that involve endoscopic exploration of the nasal cavity and sinuses often do not have a reference image to provide structural context to the clinician. In this paper, we present a system for navigation during clinical…

图像与视频处理 · 电气工程与系统科学 2019-04-02 Ayushi Sinha , Xingtong Liu , Austin Reiter , Masaru Ishii , Gregory D. Hager , Russell H. Taylor

Nowadays underwater vision systems are being widely applied in ocean research. However, the largest portion of the ocean - the deep sea - still remains mostly unexplored. Only relatively few image sets have been taken from the deep sea due…

计算机视觉与模式识别 · 计算机科学 2021-02-24 Yifan Song , David Nakath , Mengkun She , Furkan Elibol , Kevin Köser

Intrinsic image decomposition is a challenging, long-standing computer vision problem for which ground truth data is very difficult to acquire. We explore the use of synthetic data for training CNN-based intrinsic image decomposition…

计算机视觉与模式识别 · 计算机科学 2018-12-07 Zhengqi Li , Noah Snavely

Neural networks have shown great success in extracting geometric information from color images. Especially, monocular depth estimation networks are increasingly reliable in real-world scenes. In this work we investigate the applicability of…

计算机视觉与模式识别 · 计算机科学 2023-02-21 Dominik Engel , Sebastian Hartwig , Timo Ropinski

We demonstrate a method for training a convolutional neural network with simulated images for usage on real-world experimental data. Modern machine learning methods require large, robust training data sets to generate accurate predictions.…

软凝聚态物质 · 物理学 2019-08-15 Eric N. Minor , Stian D. Howard , Adam A. S. Green , Cheol S. Park , Noel A. Clark

Convolutional neural networks (CNNs) have recently achieved remarkable performance in positron emission tomography (PET) image reconstruction. In particular, CNN-based direct PET image reconstruction, which directly generates the…

医学物理 · 物理学 2024-10-28 Fumio Hashimoto , Kibo Ote

Image representations, from SIFT and Bag of Visual Words to Convolutional Neural Networks (CNNs), are a crucial component of almost any image understanding system. Nevertheless, our understanding of them remains limited. In this paper we…

计算机视觉与模式识别 · 计算机科学 2014-12-02 Aravindh Mahendran , Andrea Vedaldi

Unpaired image-to-image translation of retinal images can efficiently increase the training dataset for deep-learning-based multi-modal retinal registration methods. Our method integrates a vessel segmentation network into the…

图像与视频处理 · 电气工程与系统科学 2023-06-06 Aline Sindel , Andreas Maier , Vincent Christlein

We propose a Noise Entangled GAN (NE-GAN) for simulating low-dose computed tomography (CT) images from a higher dose CT image. First, we present two schemes to generate a clean CT image and a noise image from the high-dose CT image. Then,…

图像与视频处理 · 电气工程与系统科学 2021-02-22 Chuang Niu , Ge Wang , Pingkun Yan , Juergen Hahn , Youfang Lai , Xun Jia , Arjun Krishna , Klaus Mueller , Andreu Badal , KyleJ. Myers , Rongping Zeng

Modern day multimedia content generation and dissemination is moving towards the presentation of more and more `realistic' scenarios. The switch from 2-dimensional (2D) to 3-dimensional (3D) has been a major driving force in that direction.…

计算机视觉与模式识别 · 计算机科学 2019-05-16 Asra Aslam , Mohd. Samar Ansari

One of the key elements of reconstructing a 3D mesh from a monocular video is generating every frame's depth map. However, in the application of colonoscopy video reconstruction, producing good-quality depth estimation is challenging.…

图像与视频处理 · 电气工程与系统科学 2021-11-23 Yubo Zhang , Jan-Michael Frahm , Samuel Ehrenstein , Sarah K. McGill , Julian G. Rosenman , Shuxian Wang , Stephen M. Pizer

Compressive sensing is a method to recover the original image from undersampled measurements. In order to overcome the ill-posedness of this inverse problem, image priors are used such as sparsity in the wavelet domain, minimum…

计算机视觉与模式识别 · 计算机科学 2018-12-20 Magauiya Zhussip , Shakarim Soltanayev , Se Young Chun

Autonomous vehicles and robots require a full scene understanding of the environment to interact with it. Such a perception typically incorporates pixel-wise knowledge of the depths and semantic labels for each image from a video sensor.…

计算机视觉与模式识别 · 计算机科学 2019-07-26 Matthias Ochs , Adrian Kretz , Rudolf Mester

Estimating human pose, shape, and motion from images and videos are fundamental challenges with many applications. Recent advances in 2D human pose estimation use large amounts of manually-labeled training data for learning convolutional…

计算机视觉与模式识别 · 计算机科学 2018-01-22 Gül Varol , Javier Romero , Xavier Martin , Naureen Mahmood , Michael J. Black , Ivan Laptev , Cordelia Schmid

Computer-assisted surgical (CAS) systems enhance surgical execution and outcomes by providing advanced support to surgeons. These systems often rely on deep learning models trained on complex, challenging-to-annotate data. While synthetic…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Sabina Martyniak , Joanna Kaleta , Diego Dall'Alba , Michał Naskręt , Szymon Płotka , Przemysław Korzeniowski

This paper considers the problem of single image depth estimation. The employment of convolutional neural networks (CNNs) has recently brought about significant advancements in the research of this problem. However, most existing methods…

计算机视觉与模式识别 · 计算机科学 2018-09-25 Junjie Hu , Mete Ozay , Yan Zhang , Takayuki Okatani

Endoscopic surgery relies on intraoperative video, making image quality a decisive factor for surgical safety and efficacy. Yet, endoscopic videos are often degraded by uneven illumination, tissue scattering, occlusions, and motion blur,…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Handing Xu , Zhenguo Nie , Tairan Peng , Huimin Pan , Xin-Jun Liu

Convolutional neural networks (CNNs) achieved the state-of-the-art performance in medical image segmentation due to their ability to extract highly complex feature representations. However, it is argued in recent studies that traditional…

计算机视觉与模式识别 · 计算机科学 2025-03-31 Zhendi Gong , Andrew P. French , Guoping Qiu , Xin Chen

A deep learning-based monocular depth estimation (MDE) technique is proposed for selection of most informative frames (key frames) of an endoscopic video. In most of the cases, ground truth depth maps of polyps are not readily available and…

计算机视觉与模式识别 · 计算机科学 2021-07-12 Pradipta Sasmal , Avinash Paul , M. K. Bhuyan , Yuji Iwahori

Robotic ultrasound (US) systems have shown great potential to make US examinations easier and more accurate. Recently, various machine learning techniques have been proposed to realize automatic US image interpretation for robotic US…

机器人学 · 计算机科学 2023-05-17 Keyu Li , Xinyu Mao , Chengwei Ye , Ang Li , Yangxin Xu , Max Q. -H. Meng