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We propose an estimation method using a recurrent neural network (RNN) of the colon's shape where deformation was occurred by a colonoscope insertion. Colonoscope tracking or a navigation system that navigates physician to polyp positions…

Computer Vision and Pattern Recognition · Computer Science 2020-04-29 Masahiro Oda , Holger R. Roth , Takayuki Kitasaka , Kazuhiro Furukawa , Ryoji Miyahara , Yoshiki Hirooka , Hidemi Goto , Nassir Navab , Kensaku Mori

Precise delineation of organs at risk (OAR) is a crucial task in radiotherapy treatment planning, which aims at delivering high dose to the tumour while sparing healthy tissues. In recent years algorithms showed high performance and the…

Computer Vision and Pattern Recognition · Computer Science 2017-04-24 Tobias Fechter , Sonja Adebahr , Dimos Baltas , Ismail Ben Ayed , Christian Desrosiers , Jose Dolz

Early diagnosis of breast cancer is crucial, enabling the establishment of appropriate treatment plans and markedly enhancing patient prognosis. While direct magnetic resonance imaging-guided biopsy demonstrates promising performance in…

Machine Learning · Computer Science 2025-11-18 Kyunghyun Lee , Yong-Min Shin , Minwoo Shin , Jihun Kim , Sunghwan Lim , Won-Yong Shin , Kyungho Yoon

Renal tumors, especially renal cell carcinoma (RCC), show significant heterogeneity, posing challenges for diagnosis using radiology images such as MRI, echocardiograms, and CT scans. U-Net based deep learning techniques are emerging as a…

Artificial Intelligence · Computer Science 2024-10-23 Fnu Neha , Arvind K. Bansal

Organ shape reconstruction based on a single-projection image during treatment has wide clinical scope, e.g., in image-guided radiotherapy and surgical guidance. We propose an image-to-graph convolutional network that achieves deformable…

Image and Video Processing · Electrical Eng. & Systems 2022-08-01 Megumi Nakao , Mitsuhiro Nakamura , Tetsuya Matsuda

In deformable object manipulation, we often want to interact with specific segments of an object that are only defined in non-deformed models of the object. We thus require a system that can recognize and locate these segments in sensor…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Pit Henrich , Balázs Gyenes , Paul Maria Scheikl , Gerhard Neumann , Franziska Mathis-Ullrich

Accurate prediction of malignancy in renal tumors is crucial for informing clinical decisions and optimizing treatment strategies. However, existing imaging modalities lack the necessary accuracy to reliably predict malignancy before…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Zhengkang Fan , Chengkun Sun , Russell Terry , Jie Xu , Longin Jan Latecki

Applications in fields ranging from home care to warehouse fulfillment to surgical assistance require robots to reliably manipulate the shape of 3D deformable objects. Analytic models of elastic, 3D deformable objects require numerous…

Robotics · Computer Science 2024-02-20 Bao Thach , Brian Y. Cho , Shing-Hei Ho , Tucker Hermans , Alan Kuntz

Successfully tracking the human body is an important perceptual challenge for robots that must work around people. Existing methods fall into two broad categories: geometric tracking and direct pose estimation using machine learning. While…

Computer Vision and Pattern Recognition · Computer Science 2019-08-06 Weilin Wan , Aaron Walsman , Dieter Fox

We introduce a novel approach for the precise localization of 67 anatomical structures from single depth images captured from the exterior of the human body. Our method uses a multi-class occupancy network, trained using segmented CT scans…

Computer Vision and Pattern Recognition · Computer Science 2025-04-23 Pit Henrich , Franziska Mathis-Ullrich

Kidney abnormality segmentation has important potential to enhance the clinical workflow, especially in settings requiring quantitative assessments. Kidney volume could serve as an important biomarker for renal diseases, with changes in…

Kidney tumor segmentation emerges as a new frontier of computer vision in medical imaging. This is partly due to its challenging manual annotation and great medical impact. Within the scope of the Kidney Tumor Segmentation Challenge 2019,…

Image and Video Processing · Electrical Eng. & Systems 2019-10-18 Minh H. Vu , Guus Grimbergen , Attila Simkó , Tufve Nyholm , Tommy Löfstedt

Radiation therapy (RT) is widely employed in the clinic for the treatment of head and neck (HaN) cancers. An essential step of RT planning is the accurate segmentation of various organs-at-risks (OARs) in HaN CT images. Nevertheless,…

Image and Video Processing · Electrical Eng. & Systems 2021-09-28 Zijie Chen , Cheng Li , Junjun He , Jin Ye , Diping Song , Shanshan Wang , Lixu Gu , Yu Qiao

Breast lesion localization using tactile imaging is a new and developing direction in medical science. To achieve the goal, proper image reconstruction and image registration can be a valuable asset. In this paper, a new approach of the…

Computer Vision and Pattern Recognition · Computer Science 2019-10-16 Shuvendu Rana , Rory Hampson , Gordon Dobie

Tracking and localizing objects is a central problem in computer-assisted surgery. Optical coherence tomography (OCT) can be employed as an optical tracking system, due to its high spatial and temporal resolution. Recently, 3D convolutional…

Image and Video Processing · Electrical Eng. & Systems 2020-07-03 Marcel Bengs , Nils Gessert , Alexander Schlaefer

Imaging modalities provide clinicians with real-time visualization of anatomical regions of interest (ROI) for the purpose of minimally invasive surgery. During the procedure, low-resolution image data are acquired and registered with…

Medical Physics · Physics 2020-11-10 Haolin Liu , Ye Han , Daniel Emerson , Houriyeh Majditehran , Qi Wang , Yoed Rabin , Levent Burak Kara

Accurate segmentation of kidneys and kidney tumors is an essential step for radiomic analysis as well as developing advanced surgical planning techniques. In clinical analysis, the segmentation is currently performed by clinicians from the…

Image and Video Processing · Electrical Eng. & Systems 2020-06-05 Wenshuai Zhao , Dihong Jiang , Jorge Peña Queralta , Tomi Westerlund

Partial shapes correspondences is a problem that often occurs in computer vision (occlusion, evolution in time...). In medical imaging, data may come from different modalities and be acquired under different conditions which leads to…

Image and Video Processing · Electrical Eng. & Systems 2022-04-13 Pierre-Louis Antonsanti , Thomas Benseghir , Vincent Jugnon , Mario Ghosn , Perrine Chassat , Irène Kaltenmark , Joan Glaunès

We propose Deep-Motion-Net: an end-to-end graph neural network (GNN) architecture that enables 3D (volumetric) organ shape reconstruction from a single in-treatment kV planar X-ray image acquired at any arbitrary projection angle.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Isuru Wijesinghe , Michael Nix , Arezoo Zakeri , Alireza Hokmabadi , Bashar Al-Qaisieh , Ali Gooya , Zeike A. Taylor

In this paper, we propose a novel approach to 3D deformable object manipulation leveraging a deep neural network called DeformerNet. Controlling the shape of a 3D object requires an effective state representation that can capture the full…

Robotics · Computer Science 2021-07-20 Bao Thach , Alan Kuntz , Tucker Hermans