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This work presents a novel Bayesian framework for unsupervised domain adaptation (UDA) in medical image segmentation. While prior works have explored this clinically significant task using various strategies of domain alignment, they often…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Xin Wang , Yin Guo , Kaiyu Zhang , Niranjan Balu , Mahmud Mossa-Basha , Linda Shapiro , Chun Yuan

Implicit neural representations are a promising new avenue of representing general signals by learning a continuous function that, parameterized as a neural network, maps the domain of a signal to its codomain; the mapping from spatial…

机器学习 · 计算机科学 2021-11-09 Jaeho Lee , Jihoon Tack , Namhoon Lee , Jinwoo Shin

Reconstructing 3D geometry from \emph{unoriented} point clouds can benefit many downstream tasks. Recent shape modeling methods mostly adopt implicit neural representation to fit a signed distance field (SDF) and optimize the network by…

计算机视觉与模式识别 · 计算机科学 2022-12-15 Runsong Zhu , Di Kang , Ka-Hei Hui , Yue Qian , Xuefei Zhe , Zhen Dong , Linchao Bao , Pheng-Ann Heng , Chi-Wing Fu

Neural signed distance functions (SDFs) have been a vital representation to represent 3D shapes or scenes with neural networks. An SDF is an implicit function that can query signed distances at specific coordinates for recovering a 3D…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Qiang Bai , Bojian Wu , Xi Yang , Zhizhong Han

Neural fields offer continuous, learnable representations that extend beyond traditional discrete formats in visual computing. We study the problem of learning neural representations of repeated antiderivatives directly from a function, a…

David Marr's seminal theory of vision proposes that the human visual system operates through a sequence of three stages, known as the 2D sketch, the 2.5D sketch, and the 3D model. In recent years, Deep Neural Networks (DNN) have been widely…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Xiangyu Zhu , Chang Yu , Jiankuo Zhao , Zhaoxiang Zhang , Stan Z. Li , Zhen Lei

We present a novel approach for super-resolution that utilizes implicit neural representation (INR) to effectively reconstruct and enhance low-resolution videos and images. By leveraging the capacity of neural networks to implicitly encode…

计算机视觉与模式识别 · 计算机科学 2025-03-07 Mary Aiyetigbo , Wanqi Yuan , Feng Luo , Nianyi Li

Recent progress of self-supervised visual representation learning has achieved remarkable success on many challenging computer vision benchmarks. However, whether these techniques can be used for domain adaptation has not been explored. In…

计算机视觉与模式识别 · 计算机科学 2019-12-12 Jiaolong Xu , Liang Xiao , Antonio M. Lopez

Reconstructing detailed 3D scenes from single-view images remains a challenging task due to limitations in existing approaches, which primarily focus on geometric shape recovery, overlooking object appearances and fine shape details. To…

计算机视觉与模式识别 · 计算机科学 2023-11-02 Yixin Chen , Junfeng Ni , Nan Jiang , Yaowei Zhang , Yixin Zhu , Siyuan Huang

Synthetic aperture radar (SAR) is a tomographic sensor that measures 2D slices of the 3D spatial Fourier transform of the scene. In many operational scenarios, the measured set of 2D slices does not fill the 3D space in the Fourier domain,…

信号处理 · 电气工程与系统科学 2026-02-20 Nithin Sugavanam , Emre Ertin

We investigate applying 3D deep convolutional neural networks as fast surrogate models of the formation and feedback effects of primordial stars in hydrodynamic cosmological simulations of the first galaxies. Here, we present the surrogate…

星系天体物理 · 物理学 2021-06-22 Azton I. Wells , Michael L. Norman

Object recognition has seen significant progress in the image domain, with focus primarily on 2D perception. We propose to leverage existing large-scale datasets of 3D models to understand the underlying 3D structure of objects seen in an…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Weicheng Kuo , Anelia Angelova , Tsung-Yi Lin , Angela Dai

State-of-the-art neural implicit surface representations have achieved impressive results in indoor scene reconstruction by incorporating monocular geometric priors as additional supervision. However, we have observed that multi-view…

计算机视觉与模式识别 · 计算机科学 2024-05-02 Ziyi Chen , Xiaolong Wu , Yu Zhang

In this paper, we propose Neural Points, a novel point cloud representation and apply it to the arbitrary-factored upsampling task. Different from traditional point cloud representation where each point only represents a position or a local…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Wanquan Feng , Jin Li , Hongrui Cai , Xiaonan Luo , Juyong Zhang

In recent years, coordinate-based neural implicit representations have shown promising results for the task of Simultaneous Localization and Mapping (SLAM). While achieving impressive performance on small synthetic scenes, these methods…

计算机视觉与模式识别 · 计算机科学 2023-12-04 Kunyi Li , Michael Niemeyer , Nassir Navab , Federico Tombari

Gaussian splatting techniques have shown promising results in novel view synthesis, achieving high fidelity and efficiency. However, their high reconstruction quality comes at the cost of requiring a large number of primitives. We identify…

图形学 · 计算机科学 2025-07-29 Xin Zhang , Anpei Chen , Jincheng Xiong , Pinxuan Dai , Yujun Shen , Weiwei Xu

Photo-realistic free-viewpoint rendering of real-world scenes using classical computer graphics techniques is challenging, because it requires the difficult step of capturing detailed appearance and geometry models. Recent studies have…

计算机视觉与模式识别 · 计算机科学 2021-01-08 Lingjie Liu , Jiatao Gu , Kyaw Zaw Lin , Tat-Seng Chua , Christian Theobalt

Semantic segmentation requires per-pixel prediction for a given image. Typically, the output resolution of a segmentation network is severely reduced due to the downsampling operations in the CNN backbone. Most previous methods employ…

计算机视觉与模式识别 · 计算机科学 2021-08-02 Bowen Zhang , Yifan Liu , Zhi Tian , Chunhua Shen

The advent of novel view synthesis techniques such as NeRF and 3D Gaussian Splatting (3DGS) has enabled learning precise 3D models only from posed monocular images. Although these methods are attractive, they hold two major limitations that…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Pol Francesch Huc , Emily Bates , Simone D'Amico

We propose the Medial Skeletal Diagram, a novel skeletal representation that tackles the prevailing issues around skeleton sparsity and reconstruction accuracy in existing skeletal representations. Our approach augments the continuous…

图形学 · 计算机科学 2024-10-04 Minghao Guo , Bohan Wang , Wojciech Matusik