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While recent large-scale video-language pre-training made great progress in video question answering, the design of spatial modeling of video-language models is less fine-grained than that of image-language models; existing practices of…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Hsin-Ying Lee , Hung-Ting Su , Bing-Chen Tsai , Tsung-Han Wu , Jia-Fong Yeh , Winston H. Hsu

Spatial-Temporal Video Super-Resolution (ST-VSR) aims to generate super-resolved videos with higher resolution(HR) and higher frame rate (HFR). Quite intuitively, pioneering two-stage based methods complete ST-VSR by directly combining two…

Computer Vision and Pattern Recognition · Computer Science 2022-05-12 Mengshun Hu , Kui Jiang , Liang Liao , Jing Xiao , Junjun Jiang , Zheng Wang

The essence of video semantic segmentation (VSS) is how to leverage temporal information for prediction. Previous efforts are mainly devoted to developing new techniques to calculate the cross-frame affinities such as optical flow and…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Guolei Sun , Yun Liu , Hao Tang , Ajad Chhatkuli , Le Zhang , Luc Van Gool

Deep network-based image and video Compressive Sensing(CS) has attracted increasing attentions in recent years. However, in the existing deep network-based CS methods, a simple stacked convolutional network is usually adopted, which not…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Tong Zhang , Wenxue Cui , Chen Hui , Feng Jiang

Learning image representations with ConvNets by pre-training on ImageNet has proven useful across many visual understanding tasks including object detection, semantic segmentation, and image captioning. Although any image representation can…

Computer Vision and Pattern Recognition · Computer Science 2017-08-18 Du Tran , Jamie Ray , Zheng Shou , Shih-Fu Chang , Manohar Paluri

In video super-resolution, the spatio-temporal coherence between, and among the frames must be exploited appropriately for accurate prediction of the high resolution frames. Although 2D convolutional neural networks (CNNs) are powerful in…

Computer Vision and Pattern Recognition · Computer Science 2019-06-21 Soo Ye Kim , Jeongyeon Lim , Taeyoung Na , Munchurl Kim

Visual error metrics play a fundamental role in the quantification of perceived image similarity. Most recently, use cases for them in real-time applications have emerged, such as content-adaptive shading and shading reuse to increase…

Graphics · Computer Science 2023-10-16 João Libório Cardoso , Bernhard Kerbl , Lei Yang , Yury Uralsky , Michael Wimmer

Do video-text transformers learn to model temporal relationships across frames? Despite their immense capacity and the abundance of multimodal training data, recent work has revealed the strong tendency of video-text models towards…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Yi Li , Kyle Min , Subarna Tripathi , Nuno Vasconcelos

Real-time video surveillance, through CCTV camera systems has become essential for ensuring public safety which is a priority today. Although CCTV cameras help a lot in increasing security, these systems require constant human interaction…

Computer Vision and Pattern Recognition · Computer Science 2023-02-23 Labib Ahmed Siddique , Rabita Junhai , Tanzim Reza , Salman Sayeed Khan , Tanvir Rahman

Temporal convolution has been widely used for video classification. However, it is performed on spatio-temporal contexts in a limited view, which often weakens its capacity of learning video representation. To alleviate this problem, we…

Computer Vision and Pattern Recognition · Computer Science 2020-06-26 Xianhang Li , Yali Wang , Zhipeng Zhou , Yu Qiao

We introduce VidLPRO, a novel video-language (VL) pre-training framework designed specifically for robotic and laparoscopic surgery. While existing surgical VL models primarily rely on contrastive learning, we propose a more comprehensive…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Mohammadmahdi Honarmand , Muhammad Abdullah Jamal , Omid Mohareri

Accuracy of depth estimation from static images has been significantly improved recently, by exploiting hierarchical features from deep convolutional neural networks (CNNs). Compared with static images, vast information exists among video…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Haokui Zhang , Chunhua Shen , Ying Li , Yuanzhouhan Cao , Yu Liu , Youliang Yan

Two-stream Convolutional Networks (ConvNets) have shown strong performance for human action recognition in videos. Recently, Residual Networks (ResNets) have arisen as a new technique to train extremely deep architectures. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2016-11-08 Christoph Feichtenhofer , Axel Pinz , Richard P. Wildes

Vision-language models (VLMs), such as CLIP and ALIGN, are generally trained on datasets consisting of image-caption pairs obtained from the web. However, real-world multimodal datasets, such as healthcare data, are significantly more…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Maya Varma , Jean-Benoit Delbrouck , Sarah Hooper , Akshay Chaudhari , Curtis Langlotz

Despite recent progress in video and language representation learning, the weak or sparse correspondence between the two modalities remains a bottleneck in the area. Most video-language models are trained via pair-level loss to predict…

Machine Learning · Computer Science 2022-10-12 Zixu Wang , Yujie Zhong , Yishu Miao , Lin Ma , Lucia Specia

Developing a technique for the automatic analysis of surveillance videos in order to identify the presence of violence is of broad interest. In this work, we propose a deep neural network for the purpose of recognizing violent videos. A…

Computer Vision and Pattern Recognition · Computer Science 2017-09-20 Swathikiran Sudhakaran , Oswald Lanz

As important data carriers, the drastically increasing number of multimedia videos often brings many duplicate and near-duplicate videos in the top results of search. Near-duplicate video retrieval (NDVR) can cluster and filter out the…

Information Retrieval · Computer Science 2021-06-01 Hao Cheng , Ping Wang , Chun Qi

Contemporary Video Instance Segmentation (VIS) methods typically adhere to a pre-train then fine-tune regime, where a segmentation model trained on images is fine-tuned on videos. However, the lack of temporal knowledge in the pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Qing Zhong , Peng-Tao Jiang , Wen Wang , Guodong Ding , Lin Wu , Kaiqi Huang

Motivated by the previous success of Two-Dimensional Convolutional Neural Network (2D CNN) on image recognition, researchers endeavor to leverage it to characterize videos. However, one limitation of applying 2D CNN to analyze videos is…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Junwu Weng , Donghao Luo , Yabiao Wang , Ying Tai , Chengjie Wang , Jilin Li , Feiyue Huang , Xudong Jiang , Junsong Yuan

In Video Instance Segmentation (VIS), current approaches either focus on the quality of the results, by taking the whole video as input and processing it offline; or on speed, by handling it frame by frame at the cost of competitive…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Çağan Selim Çoban , Oğuzhan Keskin , Jordi Pont-Tuset , Fatma Güney