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The growing prevalence of high-dimensional data has fostered the development of multidimensional projection (MP) techniques, such as t-SNE, UMAP, and LAMP, for data visualization and exploration. However, conventional MP methods typically…

Graphics · Computer Science 2024-07-24 Maniru Ibrahim

Touchable projection with structured light range cameras is a prolific medium for large interaction surfaces, affording multiple simultaneous users and simple, cheap setup. However robust touch detection in such projector-depth systems is…

Human-Computer Interaction · Computer Science 2018-12-31 Zhi Chai , Roy Shilkrot

Learning-based 3D Scanning plays a crucial role in enabling efficient and accurate scanning of target objects. However, recent reinforcement learning-based methods often require large-scale training data and still struggle to generalize to…

Robotics · Computer Science 2026-03-12 Itsuki Hirako , Ryo Hakoda , Yubin Liu , Matthew Hwang , Yoshihiro Sato , Takeshi Oishi

We propose an overlapping Schwarz space-time refinement framework for the material point method (OS-MPM) to improve computational efficiency in problems with strongly localized deformation, contact, and large geometric nonlinearity. The…

Computational Engineering, Finance, and Science · Computer Science 2026-05-12 Zhaofeng Luo , Minchen Li , Yupeng Jiang

Comprehensive panoramic scene understanding is critical for immersive applications, yet it remains challenging due to the scarcity of high-resolution, multi-task annotations. While perspective foundation models have achieved success through…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Jingdong Zhang , Xiaohang Zhan , Lingzhi Zhang , Yizhou Wang , Zhengming Yu , Jionghao Wang , Wenping Wang , Xin Li

Autonomous robots that interact with their environment require a detailed semantic scene model. For this, volumetric semantic maps are frequently used. The scene understanding can further be improved by including object-level information in…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Julian Hau , Simon Bultmann , Sven Behnke

The purpose of this study is to develop an automated and accurate external camera calibration method for multi-camera systems used in 3D surgical scene reconstruction (3D-SSR), eliminating the need for operator intervention or specialized…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Tim Flückiger , Jonas Hein , Valery Fischer , Philipp Fürnstahl , Lilian Calvet

A method for displaying volumetric images, which exploits our binocular vision and does not require eyewear, is discussed. The display can be rendered as a matrix of pivoting micromirrors irradiated by a light beam; each micromirror focuses…

Optics · Physics 2007-07-04 Oleg G. Semyonov

We introduce the Pyramid Diffusion Model (PDM), a novel architecture designed for ultra-high-resolution image synthesis. PDM utilizes a pyramid latent representation, providing a broader design space that enables more flexible, structured,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Jiajie Yang

One of the major challenges in Minimally Invasive Surgery (MIS) such as laparoscopy is the lack of depth perception. In recent years, laparoscopic scene tracking and surface reconstruction has been a focus of investigation to provide rich…

Computer Vision and Pattern Recognition · Computer Science 2017-03-06 Long Chen , Wen Tang , Nigel W. John , Tao Ruan Wan , Jian Jun Zhang

Neural approaches have shown a significant progress on camera-based reconstruction. But they require either a fairly dense sampling of the viewing sphere, or pre-training on an existing dataset, thereby limiting their generalizability. In…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Mohammed Brahimi , Bjoern Haefner , Zhenzhang Ye , Bastian Goldluecke , Daniel Cremers

Recent work has shown that diffusion models can serve as powerful neural rendering engines that can be leveraged for inserting virtual objects into images. However, unlike typical physics-based renderers, these neural rendering engines are…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Frédéric Fortier-Chouinard , Zitian Zhang , Louis-Etienne Messier , Mathieu Garon , Anand Bhattad , Jean-François Lalonde

Although transformer has achieved great progress on computer vision tasks, the scale variation in dense image prediction is still the key challenge. Few effective multi-scale techniques are applied in transformer and there are two main…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Zekun Li , Yufan Liu , Bing Li , Weiming Hu , Kebin Wu , Pei Wang

High-quality panoramic images with a Field of View (FoV) of 360{\deg} are essential for contemporary panoramic computer vision tasks. However, conventional imaging systems come with sophisticated lens designs and heavy optical components.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Qi Jiang , Shaohua Gao , Yao Gao , Kailun Yang , Zhonghua Yi , Hao Shi , Lei Sun , Kaiwei Wang

In this paper, we propose a modular navigation system that can be mounted on a regular powered wheelchair to assist disabled children and the elderly with autonomous mobility and shared-control features. The lack of independent mobility…

Robotics · Computer Science 2022-11-29 Vaishanth Ramaraj , Atharva Paralikar , Eung Joo Lee , Syed Muhammad Anwar , Reza Monfaredi

Telepresence VR systems allow for face-to-face communication, promoting the feeling of presence and understanding of nonverbal cues. However, when discussing virtual 3D objects, limitations to presence and communication cause deictic…

Human-Computer Interaction · Computer Science 2025-04-08 João Simões , Anderson Maciel , Catarina Moreira , Joaquim Jorge

Stereo image matching is a fundamental task in computer vision, photogrammetry and remote sensing, but there is an almost unexplored field, i.e., polygon matching, which faces the following challenges: disparity discontinuity, scale…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Chang Li , Xingtao Peng

High-quality imaging in photoacoustic computed tomography (PACT) usually requires a high-channel count system for dense spatial sampling around the object to avoid aliasing-related artefacts. To reduce system complexity, various image…

Image and Video Processing · Electrical Eng. & Systems 2024-09-24 Bowei Yao , Shilong Cui , Haizhao Dai , Qing Wu , Youshen Xiao , Fei Gao , Jingyi Yu , Yuyao Zhang , Xiran Cai

We present a telepresence system based on a custom-made simulated holographic display that produces a full 3D model of the remote participants using commodity depth sensors. Our display is composed of a video projector and a quadrangular…

We introduce an approach for the real-time (2Hz) creation of a dense map and alignment of a moving robotic agent within that map by rendering using a Graphics Processing Unit (GPU). This is done by recasting the scan alignment part of the…

Computer Vision and Pattern Recognition · Computer Science 2017-02-23 Julian Ryde , Xuchu , Ding