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Dynamic imaging involves the reconstruction of a spatio-temporal object at all times using its undersampled measurements. In particular, in dynamic computed tomography (dCT), only a single projection at one view angle is available at a…

图像与视频处理 · 电气工程与系统科学 2025-03-14 Berk Iskender , Sushan Nakarmi , Nitin Daphalapurkar , Marc L. Klasky , Yoram Bresler

How can unlabeled video augment visual learning? Existing methods perform "slow" feature analysis, encouraging the representations of temporally close frames to exhibit only small differences. While this standard approach captures the fact…

计算机视觉与模式识别 · 计算机科学 2016-04-15 Dinesh Jayaraman , Kristen Grauman

Even though large-scale text-to-image generative models show promising performance in synthesizing high-quality images, applying these models directly to image editing remains a significant challenge. This challenge is further amplified in…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Shutong Jin , Ruiyu Wang , Florian T. Pokorny

Recent advancements in Neural Surface Reconstruction (NSR) have significantly improved multi-view reconstruction when coupled with volume rendering. However, relying solely on photometric consistency in image space falls short of addressing…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Xinlin Ren , Chenjie Cao , Yanwei Fu , Xiangyang Xue

Continual learning (CL) is widely regarded as crucial challenge for lifelong AI. However, existing CL benchmarks, e.g. Permuted-MNIST and Split-CIFAR, make use of artificial temporal variation and do not align with or generalize to the…

计算机视觉与模式识别 · 计算机科学 2022-06-10 Zhiqiu Lin , Jia Shi , Deepak Pathak , Deva Ramanan

Multimodal ML models can process data in multiple modalities (e.g., video, images, audio, text) and are useful for video content analysis in a variety of problems (e.g., object detection, scene understanding). In this paper, we focus on the…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Palash Goyal , Saurabh Sahu , Shalini Ghosh , Chul Lee

Optimization-based filtering smoothes an image by minimizing a fidelity function and simultaneously preserves edges by exploiting a sparse norm penalty over gradients. It has obtained promising performance in practical problems, such as…

图形学 · 计算机科学 2013-05-20 Chengxi Ye , Dacheng Tao , Mingli Song , David W. Jacobs , Min Wu

While recurrent neural networks (RNNs) demonstrate outstanding capabilities for future video frame prediction, they model dynamics in a discrete time space, i.e., they predict the frames sequentially with a fixed temporal step. RNNs are…

计算机视觉与模式识别 · 计算机科学 2022-10-13 Saber Pourheydari , Emad Bahrami , Mohsen Fayyaz , Gianpiero Francesca , Mehdi Noroozi , Juergen Gall

Thanks to the recent developments of Convolutional Neural Networks, the performance of face verification methods has increased rapidly. In a typical face verification method, feature normalization is a critical step for boosting…

计算机视觉与模式识别 · 计算机科学 2017-07-27 Feng Wang , Xiang Xiang , Jian Cheng , Alan L. Yuille

Normalization layers have been shown to improve convergence in deep neural networks, and even add useful inductive biases. In many vision applications the local spatial context of the features is important, but most common normalization…

计算机视觉与模式识别 · 计算机科学 2020-05-12 Anthony Ortiz , Caleb Robinson , Dan Morris , Olac Fuentes , Christopher Kiekintveld , Md Mahmudulla Hassan , Nebojsa Jojic

Recognizing facial expressions from static images or video sequences is a widely studied but still challenging problem. The recent progresses obtained by deep neural architectures, or by ensembles of heterogeneous models, have shown that…

计算机视觉与模式识别 · 计算机科学 2018-10-25 Lisa Graziani , Stefano Melacci , Marco Gori

This work tackles Weakly Supervised Anomaly detection, in which a predictor is allowed to learn not only from normal examples but also from a few labeled anomalies made available during training. In particular, we deal with the localization…

计算机视觉与模式识别 · 计算机科学 2022-08-11 Aniello Panariello , Angelo Porrello , Simone Calderara , Rita Cucchiara

Normalizing flows are a class of generative models that enable exact likelihood evaluation. While these models have already found various applications in particle physics, normalizing flows are not flexible enough to model many of the…

高能物理 - 唯象学 · 物理学 2022-09-07 Rob Verheyen

Video deblurring is a challenging task due to the spatially variant blur caused by camera shake, object motions, and depth variations, etc. Existing methods usually estimate optical flow in the blurry video to align consecutive frames or…

计算机视觉与模式识别 · 计算机科学 2019-08-02 Shangchen Zhou , Jiawei Zhang , Jinshan Pan , Haozhe Xie , Wangmeng Zuo , Jimmy Ren

In this study, we identify the need for an interpretable, quantitative score of the repeatability, or consistency, of image generation in diffusion models. We propose a semantic approach, using a pairwise mean CLIP (Contrastive…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Brinnae Bent

Diffusion-based methods can generate realistic images and videos, but they struggle to edit existing objects in a video while preserving their appearance over time. This prevents diffusion models from being applied to natural video editing…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Wenhao Chai , Xun Guo , Gaoang Wang , Yan Lu

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

Simulation is essential to the development and evaluation of autonomous robots such as self-driving vehicles. Neural reconstruction is emerging as a promising solution as it enables simulating a wide variety of scenarios from real-world…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Yuxuan Zhang , Katarína Tóthová , Zian Wang , Kangxue Yin , Haithem Turki , Riccardo de Lutio , Yen-Yu Chang , Or Litany , Sanja Fidler , Zan Gojcic

Normalizing flow (NF) has gained popularity over traditional maximum likelihood based methods due to its strong capability to model complex data distributions. However, the standard approach, which maps the observed data to a normal…

机器学习 · 计算机科学 2022-11-22 Hanze Dong , Shizhe Diao , Weizhong Zhang , Tong Zhang

This paper presents an unsupervised approach that leverages raw aerial videos to learn to estimate planar homographic transformation between consecutive video frames. Previous learning-based estimators work on pairs of images to estimate…

计算机视觉与模式识别 · 计算机科学 2023-04-07 Pu Li , Xiaobai Liu