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Obtaining truly representative pore-scale images that match bulk formation properties remains a fundamental challenge in subsurface characterization, as natural spatial heterogeneity causes extracted sub-images to deviate significantly from…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Ali Sadeghkhani , Brandon Bennett , Masoud Babaei , Arash Rabbani

Point clouds are rich geometric data structures, where their three dimensional structure offers an excellent domain for understanding the representation learning and generative modeling in 3D space. In this work, we aim to improve the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Lingjie Kong , Pankaj Rajak , Siamak Shakeri

Generative Adversarial Networks (GANs) have recently introduced effective methods of performing Image-to-Image translations. These models can be applied and generalized to a variety of domains in Image-to-Image translation without changing…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Sagar Saxena , Mohammad Nayeem Teli

Self-supervised learning of point cloud aims to leverage unlabeled 3D data to learn meaningful representations without reliance on manual annotations. However, current approaches face challenges such as limited data diversity and inadequate…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Keyi Liu , Yeqi Luo , Weidong Yang , Jingyi Xu , Zhijun Li , Wen-Ming Chen , Ben Fei

In the last few years, Intensity Interferometry (II) has made significant strides in achieving high-precision resolution of stellar objects at optical wavelengths. Despite these advancements, phase retrieval remains a major challenge due to…

Instrumentation and Methods for Astrophysics · Physics 2026-05-07 Km Nitu Rai , Yuri van der Burg , Soumen Basak , Prasenjit Saha , Subrata Sarangi

3D Gaussian Splatting (3DGS) has demonstrated its advantages in achieving fast and high-quality rendering. As point clouds serve as a widely-used and easily accessible form of 3D representation, bridging the gap between point clouds and…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Weiqi Zhang , Junsheng Zhou , Haotian Geng , Wenyuan Zhang , Yu-Shen Liu

Generating images according to natural language descriptions is a challenging task. Prior research has mainly focused to enhance the quality of generation by investigating the use of spatial attention and/or textual attention thereby…

Computer Vision and Pattern Recognition · Computer Science 2022-01-17 Henning Schulze , Dogucan Yaman , Alexander Waibel

This work presents a new depth- and semantics-aware conditional generative model, named TITAN-Next, for cross-domain image-to-image translation in a multi-modal setup between LiDAR and camera sensors. The proposed model leverages scene…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Tiago Cortinhal , Eren Erdal Aksoy

Constructing high-quality generative models for 3D shapes is a fundamental task in computer vision with diverse applications in geometry processing, engineering, and design. Despite the recent progress in deep generative modelling,…

Computer Vision and Pattern Recognition · Computer Science 2021-02-08 Vage Egiazarian , Savva Ignatyev , Alexey Artemov , Oleg Voynov , Andrey Kravchenko , Youyi Zheng , Luiz Velho , Evgeny Burnaev

Synthesizing high-quality images from text descriptions is a challenging problem in computer vision and has many practical applications. Samples generated by existing text-to-image approaches can roughly reflect the meaning of the given…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Han Zhang , Tao Xu , Hongsheng Li , Shaoting Zhang , Xiaogang Wang , Xiaolei Huang , Dimitris Metaxas

In this paper, we propose a simple yet effective method to represent point clouds as sets of samples drawn from a cloud-specific probability distribution. This interpretation matches intrinsic characteristics of point clouds: the number of…

Computer Vision and Pattern Recognition · Computer Science 2020-10-22 Michał Stypułkowski , Kacper Kania , Maciej Zamorski , Maciej Zięba , Tomasz Trzciński , Jan Chorowski

With the capacity of modeling long-range dependencies in sequential data, transformers have shown remarkable performances in a variety of generative tasks such as image, audio, and text generation. Yet, taming them in generating less…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 An-Chieh Cheng , Xueting Li , Sifei Liu , Min Sun , Ming-Hsuan Yang

This work is the first to employ and adapt the image-to-image translation concept based on conditional generative adversarial networks (cGAN) towards learning a forward and an inverse solution operator of partial differential equations…

Reconstructing the 3D shape of an object from a single RGB image is a long-standing and highly challenging problem in computer vision. In this paper, we propose a novel method for single-image 3D reconstruction which generates a sparse…

Computer Vision and Pattern Recognition · Computer Science 2023-02-24 Luke Melas-Kyriazi , Christian Rupprecht , Andrea Vedaldi

This work studies training generative adversarial networks under the federated learning setting. Generative adversarial networks (GANs) have achieved advancement in various real-world applications, such as image editing, style transfer,…

Machine Learning · Computer Science 2020-07-21 Chenyou Fan , Ping Liu

In this work, we address two limitations of existing conditional diffusion models: their slow inference speed due to the iterative denoising process and their reliance on paired data for model fine-tuning. To tackle these issues, we…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Gaurav Parmar , Taesung Park , Srinivasa Narasimhan , Jun-Yan Zhu

Point cloud compression significantly reduces data volume but sacrifices reconstruction quality, highlighting the need for advanced quality enhancement techniques. Most existing approaches focus primarily on point-to-point fidelity, often…

Image and Video Processing · Electrical Eng. & Systems 2025-03-04 Tian Guo , Hui Yuan , Qi Liu , Honglei Su , Raouf Hamzaoui , Sam Kwong

We address the problem of finding realistic geometric corrections to a foreground object such that it appears natural when composited into a background image. To achieve this, we propose a novel Generative Adversarial Network (GAN)…

Computer Vision and Pattern Recognition · Computer Science 2018-03-06 Chen-Hsuan Lin , Ersin Yumer , Oliver Wang , Eli Shechtman , Simon Lucey

The scale and quality of point cloud datasets constrain the advancement of point cloud learning. Recently, with the development of multi-modal learning, the incorporation of domain-agnostic prior knowledge from other modalities, such as…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Yanmin Wu , Qiankun Gao , Renrui Zhang , Jian Zhang

Recent studies on visual reinforcement learning (visual RL) have explored the use of 3D visual representations. However, none of these work has systematically compared the efficacy of 3D representations with 2D representations across…

Robotics · Computer Science 2023-06-13 Zhan Ling , Yunchao Yao , Xuanlin Li , Hao Su