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One of the main issues related to unsupervised machine learning is the cost of processing and extracting useful information from large datasets. In this work, we propose a classifier ensemble based on the transferable learning capabilities…

Computer Vision and Pattern Recognition · Computer Science 2021-07-09 Luis Lucas , David Tomas , Jose Garcia-Rodriguez

We introduce a simple method that employs pre-trained CLIP encoders to enhance model generalization in the ALFRED task. In contrast to previous literature where CLIP replaces the visual encoder, we suggest using CLIP as an additional module…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Ye Won Byun , Cathy Jiao , Shahriar Noroozizadeh , Jimin Sun , Rosa Vitiello

Visual place recognition is essential for vision-based robot localization and SLAM. Despite the tremendous progress made in recent years, place recognition in changing environments remains challenging. A promising approach to cope with…

Robotics · Computer Science 2023-04-17 Reihaneh Mirjalili , Michael Krawez , Wolfram Burgard

Our goal in this paper is the adaptation of image-text models for long video retrieval. Recent works have demonstrated state-of-the-art performance in video retrieval by adopting CLIP, effectively hitchhiking on the image-text…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Max Bain , Arsha Nagrani , Gül Varol , Andrew Zisserman

Robust video scene classification models should capture the spatial (pixel-wise) and temporal (frame-wise) characteristics of a video effectively. Transformer models with self-attention which are designed to get contextualized…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Saurabh Sahu , Palash Goyal

Visual perceptual tasks aim to predict human judgment of images (e.g., emotions invoked by images, image quality assessment). Unlike objective tasks such as object/scene recognition, perceptual tasks rely on subjective human assessments,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Amit Zalcher , Navve Wasserman , Roman Beliy , Oliver Heinimann , Michal Irani

In recent years, there has been remarkable progress in supervised image segmentation. Video segmentation is less explored, despite the temporal dimension being highly informative. Semantic labels, e.g. that cannot be accurately detected in…

Computer Vision and Pattern Recognition · Computer Science 2019-08-30 Radu Sibechi , Olaf Booij , Nora Baka , Peter Bloem

Optimized scene representation is an important characteristic of a framework for detecting abnormalities on live videos. One of the challenges for detecting abnormalities in live videos is real-time detection of objects in a non-parametric…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Santhosh Kelathodi Kumaran , Debi Prosad Dogra , Partha Pratim Roy

This paper addresses the task of unsupervised video multi-object segmentation. Current approaches follow a two-stage paradigm: 1) detect object proposals using pre-trained Mask R-CNN, and 2) conduct generic feature matching for temporal…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Tianfei Zhou , Jianwu Li , Xueyi Li , Ling Shao

Text-to-video diffusion models have enabled high-quality video synthesis, yet often fail to generate temporally coherent and physically plausible motion. A key reason is the models' insufficient understanding of complex motions that natural…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Aritra Bhowmik , Denis Korzhenkov , Cees G. M. Snoek , Amirhossein Habibian , Mohsen Ghafoorian

Unifying diverse image generation tasks within a single framework remains a fundamental challenge in visual generation. While large language models (LLMs) achieve unification through task-agnostic data and generation, existing visual…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Yijing Lin , Mengqi Huang , Shuhan Zhuang , Zhendong Mao

Vision-Language Pre-training (VLP) has achieved impressive performance on various cross-modal downstream tasks. However, most existing methods can only learn from aligned image-caption data and rely heavily on expensive regional features,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Wei Li , Can Gao , Guocheng Niu , Xinyan Xiao , Hao Liu , Jiachen Liu , Hua Wu , Haifeng Wang

Recent learning-based approaches have achieved impressive results in the field of single-shot camera localization. However, how best to fuse multiple modalities (e.g., image and depth) and to deal with degraded or missing input are less…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Kaichen Zhou , Changhao Chen , Bing Wang , Muhamad Risqi U. Saputra , Niki Trigoni , Andrew Markham

We introduce Activity Graph Transformer, an end-to-end learnable model for temporal action localization, that receives a video as input and directly predicts a set of action instances that appear in the video. Detecting and localizing…

Computer Vision and Pattern Recognition · Computer Science 2021-01-29 Megha Nawhal , Greg Mori

In this paper, we tackle the problem of video alignment, the process of matching the frames of a pair of videos containing similar actions. The main challenge in video alignment is that accurate correspondence should be established despite…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Niloufar Fakhfour , Mohammad ShahverdiKondori , Sajjad Hashembeiki , Mohammadjavad Norouzi , Hoda Mohammadzade

The task of text-video retrieval aims to understand the correspondence between language and vision, has gained increasing attention in recent years. Previous studies either adopt off-the-shelf 2D/3D-CNN and then use average/max pooling to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-02 Ning Han , Jingjing Chen , Chuhao Shi , Yawen Zeng , Guangyi Xiao , Hao Chen

Contrastive language-image pretraining (CLIP) has demonstrated remarkable success in various image tasks. However, how to extend CLIP with effective temporal modeling is still an open and crucial problem. Existing factorized or joint…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Shuyuan Tu , Qi Dai , Zuxuan Wu , Zhi-Qi Cheng , Han Hu , Yu-Gang Jiang

In this paper, we propose VidLA, an approach for video-language alignment at scale. There are two major limitations of previous video-language alignment approaches. First, they do not capture both short-range and long-range temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Mamshad Nayeem Rizve , Fan Fei , Jayakrishnan Unnikrishnan , Son Tran , Benjamin Z. Yao , Belinda Zeng , Mubarak Shah , Trishul Chilimbi

Contrastive Language-Image Pre-training (CLIP) has drawn increasing attention recently for its transferable visual representation learning. However, due to the semantic gap within datasets, CLIP's pre-trained image-text alignment becomes…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Longtian Qiu , Renrui Zhang , Ziyu Guo , Ziyao Zeng , Zilu Guo , Yafeng Li , Guangnan Zhang

Large vision-language models (VLMs) like CLIP have demonstrated good zero-shot learning performance in the unsupervised domain adaptation task. Yet, most transfer approaches for VLMs focus on either the language or visual branches,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Xinyao Li , Yuke Li , Zhekai Du , Fengling Li , Ke Lu , Jingjing Li
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