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Related papers: Depth estimation of endoscopy using sim-to-real tr…

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Purpose. Given the high level of expertise required for navigation and interpretation of ultrasound images, computational simulations can facilitate the training of such skills in virtual reality. With ray-tracing based simulations,…

Image and Video Processing · Electrical Eng. & Systems 2021-01-22 Lin Zhang , Tiziano Portenier , Orcun Goksel

Estimating depth from a single RGB image is an ill-posed and inherently ambiguous problem. State-of-the-art deep learning methods can now estimate accurate 2D depth maps, but when the maps are projected into 3D, they lack local detail and…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Jun Li , Reinhard Klein , Angela Yao

Depth perception is a key component for autonomous systems that interact in the real world, such as delivery robots, warehouse robots, and self-driving cars. Tasks in autonomous robotics such as 3D object recognition, simultaneous…

Computer Vision and Pattern Recognition · Computer Science 2019-06-06 Miguel Alonso

The majority of prior monocular depth estimation methods without groundtruth depth guidance focus on driving scenarios. We show that such methods generalize poorly to unseen complex indoor scenes, where objects are cluttered and arbitrarily…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Cho-Ying Wu , Jialiang Wang , Michael Hall , Ulrich Neumann , Shuochen Su

Endovascular intervention training is increasingly being conducted in virtual simulators. However, transferring the experience from endovascular simulators to the real world remains an open problem. The key challenge is the virtual…

Image and Video Processing · Electrical Eng. & Systems 2023-04-18 Jingxuan Kang , Tudor Jianu , Baoru Huang , Binod Bhattarai , Ngan Le , Frans Coenen , Anh Nguyen

Intelligent vision is appealing in computer-assisted and robotic surgeries. Vision-based analysis with deep learning usually requires large labeled datasets, but manual data labeling is expensive and time-consuming in medical problems. We…

Image and Video Processing · Electrical Eng. & Systems 2020-08-17 Shan Lin , Fangbo Qin , Yangming Li , Randall A. Bly , Kris S. Moe , Blake Hannaford

Since the resurgence of CNNs the robotic vision community has developed a range of algorithms that perform classification, semantic segmentation and structure prediction (depths, normals, surface curvature) using neural networks. While some…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Andrew Spek , Thanuja Dharmasiri , Tom Drummond

Deep learning has become the state-of-the-art approach to medical tomographic imaging. A common approach is to feed the result of a simple inversion, for example the backprojection, to a multiscale convolutional neural network (CNN) which…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 AmirEhsan Khorashadizadeh , Valentin Debarnot , Tianlin Liu , Ivan Dokmanić

Localization in topological maps is essential for image-based navigation using an RGB camera. Localization using only one camera can be challenging in medium-to-large-sized environments because similar-looking images are often observed…

Robotics · Computer Science 2022-04-29 Takahiro Niwa , Shun Taguchi , Noriaki Hirose

Recent work on depth estimation up to now has only focused on projective images ignoring 360 content which is now increasingly and more easily produced. We show that monocular depth estimation models trained on traditional images produce…

Computer Vision and Pattern Recognition · Computer Science 2018-07-26 Nikolaos Zioulis , Antonis Karakottas , Dimitrios Zarpalas , Petros Daras

Endoscopy is the most widely used imaging technique for the diagnosis of cancerous lesions in hollow organs. However, endoscopic images are often affected by illumination artefacts: image parts may be over- or underexposed according to the…

Image and Video Processing · Electrical Eng. & Systems 2024-10-28 Axel Garcia-Vega , Ricardo Espinosa , Luis Ramirez-Guzman , Thomas Bazin , Luis Falcon-Morales , Gilberto Ochoa-Ruiz , Dominique Lamarque , Christian Daul

Monocular depth estimation (MDE) is a critical task to guide autonomous medical robots. However, obtaining absolute (metric) depth from an endoscopy camera in surgical scenes is difficult, which limits supervised learning of depth on real…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Hao Li , Daiwei Lu , Jesse d'Almeida , Dilara Isik , Ehsan Khodapanah Aghdam , Nick DiSanto , Ayberk Acar , Susheela Sharma , Jie Ying Wu , Robert J. Webster , Ipek Oguz

Convolutional neural networks (CNNs) have become increasingly popular for solving a variety of computer vision tasks, ranging from image classification to image segmentation. Recently, autonomous vehicles have created a demand for depth…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Paden Tomasello , Sammy Sidhu , Anting Shen , Matthew W. Moskewicz , Nobie Redmon , Gayatri Joshi , Romi Phadte , Paras Jain , Forrest Iandola

Simulated ultrasound image sequences are key for training and validating machine learning algorithms for left ventricular strain estimation. Several simulation pipelines have been proposed to generate sequences with corresponding ground…

Image and Video Processing · Electrical Eng. & Systems 2025-09-08 Thierry Judge , Nicolas Duchateau , Khuram Faraz , Pierre-Marc Jodoin , Olivier Bernard

Deep learning techniques hold promise to develop dense topography reconstruction and pose estimation methods for endoscopic videos. However, currently available datasets do not support effective quantitative benchmarking. In this paper, we…

This research presents a novel depth estimation algorithm based on a Transformer-encoder architecture, tailored for the NYU and KITTI Depth Dataset. This research adopts a transformer model, initially renowned for its success in natural…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Linhan Xia , Junbang Liu , Tong Wu

Depth estimation from single monocular images is a key component of scene understanding and has benefited largely from deep convolutional neural networks (CNN) recently. In this article, we take advantage of the recent deep residual…

Computer Vision and Pattern Recognition · Computer Science 2017-08-14 Yuanzhouhan Cao , Zifeng Wu , Chunhua Shen

In PET, the amount of relative (signal-dependent) noise present in different body regions can be significantly different and is inherently related to the number of counts present in that region. The number of counts in a region depends, in…

Image and Video Processing · Electrical Eng. & Systems 2022-12-20 Ye Li , Jianan Cui , Junyu Chen , Guodong Zeng , Scott Wollenweber , Floris Jansen , Se-In Jang , Kyungsang Kim , Kuang Gong , Quanzheng Li

We propose DeepHuman, an image-guided volume-to-volume translation CNN for 3D human reconstruction from a single RGB image. To reduce the ambiguities associated with the surface geometry reconstruction, even for the reconstruction of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-29 Zerong Zheng , Tao Yu , Yixuan Wei , Qionghai Dai , Yebin Liu

In this study, we explore the application of deep learning techniques for predicting cleansing quality in colon capsule endoscopy (CCE) images. Using a dataset of 500 images labeled by 14 clinicians on the Leighton-Rex scale (Poor, Fair,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Puneet Sharma , Kristian Dalsbø Hindberg , Benedicte Schelde-Olesen , Ulrik Deding , Esmaeil S. Nadimi , Jan-Matthias Braun
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