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In monocular videos that capture dynamic scenes, estimating the 3D geometry of video contents has been a fundamental challenge in computer vision. Specifically, the task is significantly challenged by the object motion, where existing…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Seong Hyeon Park , Jinwoo Shin

Dense 3D reconstruction has many applications in automated driving including automated annotation validation, multimodal data augmentation, providing ground truth annotations for systems lacking LiDAR, as well as enhancing auto-labeling…

计算机视觉与模式识别 · 计算机科学 2024-02-13 Shihao Shen , Louis Kerofsky , Varun Ravi Kumar , Senthil Yogamani

Dense matching is crucial for 3D scene reconstruction since it enables the recovery of scene 3D geometry from image acquisition. Deep Learning (DL)-based methods have shown effectiveness in the special case of epipolar stereo disparity…

计算机视觉与模式识别 · 计算机科学 2024-02-21 Teng Wu , Bruno Vallet , Marc Pierrot-Deseilligny , Ewelina Rupnik

Many spectral CT applications require accurate material decomposition. Existing material decomposition algorithms are often susceptible to significant noise magnification or, in the case of one-step model-based approaches, hampered by slow…

医学物理 · 物理学 2025-07-22 Xiao Jiang , Grace J. Gang , J. Webster Stayman

The rapid development of 3D technology and computer vision applications have motivated a thrust of methodologies for depth acquisition and estimation. However, most existing hardware and software methods have limited performance due to poor…

计算机视觉与模式识别 · 计算机科学 2015-02-13 Lee-Kang Liu , Stanley H. Chan , Truong Q. Nguyen

Information transfer between triangle meshes is of great importance in computer graphics and geometry processing. To facilitate this process, a smooth and accurate map is typically required between the two meshes. While such maps can…

图形学 · 计算机科学 2018-01-09 Danielle Ezuz , Justin Solomon , Mirela Ben-Chen

The present Multi-view stereo (MVS) methods with supervised learning-based networks have an impressive performance comparing with traditional MVS methods. However, the ground-truth depth maps for training are hard to be obtained and are…

计算机视觉与模式识别 · 计算机科学 2020-05-29 Baichuan Huang , Hongwei Yi , Can Huang , Yijia He , Jingbin Liu , Xiao Liu

Nonlinear dimensionality reduction methods have demonstrated top-notch performance in many pattern recognition and image classification tasks. Despite their popularity, they suffer from highly expensive time and memory requirements, which…

计算几何 · 计算机科学 2014-04-08 Amir Najafi , Amir Joudaki , Emad Fatemizadeh

The present Multi-view stereo (MVS) methods with supervised learning-based networks have an impressive performance comparing with traditional MVS methods. However, the ground-truth depth maps for training are hard to be obtained and are…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Baichuan Huang , Hongwei Yi , Can Huang , Yijia He , Jingbin Liu , Xiao Liu

Dynamic MRI reconstruction from undersampled measurements is a challenging inverse problem that requires preserving both spatial reconstruction quality and temporal consistency across the frames of the cine series. While recent…

图像与视频处理 · 电气工程与系统科学 2026-05-19 Yongliang Sun , Siddhant Gautam , Chaoyan Huang , Nicole Seiberlich , Ismail Alkhouri , Saiprasad Ravishankar

Reconstructing 3D object models is playing an important role in many applications in the field of computer vision. Instead of employing a collection of cameras and/or sensors as in many studies, this paper proposes a simple way to build a…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Trong Nguyen Nguyen , Huu Hung Huynh , Jean Meunier

Quantile estimation and regression within the Bayesian framework is challenging as the choice of likelihood and prior is not obvious. In this paper, we introduce a novel Bayesian nonparametric method for quantile estimation and regression…

统计方法学 · 统计学 2026-02-16 Edwin Fong , Andrew Yiu

This paper investigates the evaluation of dense 3D face reconstruction from a single 2D image in the wild. To this end, we organise a competition that provides a new benchmark dataset that contains 2000 2D facial images of 135 subjects as…

计算机视觉与模式识别 · 计算机科学 2018-04-24 Zhen-Hua Feng , Patrik Huber , Josef Kittler , Peter JB Hancock , Xiao-Jun Wu , Qijun Zhao , Paul Koppen , Matthias Rätsch

Recent advancements in diffusion models have been leveraged to address inverse problems without additional training, and Diffusion Posterior Sampling (DPS) (Chung et al., 2022a) is among the most popular approaches. Previous analyses…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Tongda Xu , Xiyan Cai , Xinjie Zhang , Xingtong Ge , Dailan He , Ming Sun , Jingjing Liu , Ya-Qin Zhang , Jian Li , Yan Wang

Recent studies have focused on enhancing the performance of 3D object detection models. Among various approaches, ground-truth sampling has been proposed as an augmentation technique to address the challenges posed by limited ground-truth…

计算机视觉与模式识别 · 计算机科学 2024-05-21 Jiyong Oh , Junhaeng Lee , Woongchan Byun , Minsang Kong , Sang Hun Lee

The distribution of data changes over time; models operating in dynamic environments need retraining. But knowing when to retrain, without access to labels, is an open challenge since some, but not all shifts degrade model performance. This…

机器学习 · 计算机科学 2025-11-05 Viet Nguyen , Changjian Shui , Vijay Giri , Siddharth Arya , Amol Verma , Fahad Razak , Rahul G. Krishnan

Accelerating magnetic resonance imaging (MRI) remains challenging, particularly under realistic acquisition noise. While diffusion models have recently shown promise for reconstructing undersampled MRI data, many approaches lack an explicit…

图像与视频处理 · 电气工程与系统科学 2026-02-06 Nikola Janjušević , Amirhossein Khalilian-Gourtani , Yao Wang , Li Feng

Real-world image restoration deals with the recovery of images suffering from an unknown degradation. This task is typically addressed while being given only degraded images, without their corresponding ground-truth versions. In this hard…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Sean Man , Guy Ohayon , Ron Raphaeli , Michael Elad

In texture-plus-depth representation of a 3D scene, depth maps from different camera viewpoints are typically lossily compressed via the classical transform coding / coefficient quantization paradigm. In this paper we propose to reduce…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Pengfei Wan , Gene Cheung , Philip A. Chou , Dinei Florencio , Cha Zhang , Oscar C. Au

We introduce MapAnything, a unified transformer-based feed-forward model that ingests one or more images along with optional geometric inputs such as camera intrinsics, poses, depth, or partial reconstructions, and then directly regresses…