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Pre-trained models learn general representations from large datsets which can be fine-turned for specific tasks to significantly reduce training time. Pre-trained models like generative pretrained transformers (GPT), bidirectional encoder…

Information Retrieval · Computer Science 2024-07-15 Linhan Xia , Yicheng Yang , Ziou Chen , Zheng Yang , Shengxin Zhu

Existing multi-object tracking algorithms typically fail to adequately address the issues in low-quality videos, resulting in a significant decline in tracking performance when image quality deteriorates in real-world scenarios. This…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Jun Du

Contrastive language-image pre-training (CLIP) has demonstrated remarkable zero-shot classification ability, namely image classification using novel text labels. Existing works have attempted to enhance CLIP by fine-tuning on downstream…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Seongha Eom , Namgyu Ho , Jaehoon Oh , Se-Young Yun

Cross-modal video-text retrieval, a challenging task in the field of vision and language, aims at retrieving corresponding instance giving sample from either modality. Existing approaches for this task all focus on how to design encoding…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Rui Zhao , Kecheng Zheng , Zheng-Jun Zha , Hongtao Xie , Jiebo Luo

Cross-model retrieval has emerged as one of the most important upgrades for text-only search engines (SE). Recently, with powerful representation for pairwise text-image inputs via early interaction, the accuracy of vision-language (VL)…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Lisai Zhang , Hongfa Wu , Qingcai Chen , Yimeng Deng , Zhonghua Li , Dejiang Kong , Zhao Cao , Joanna Siebert , Yunpeng Han

We introduce VideoFlow, a novel optical flow estimation framework for videos. In contrast to previous methods that learn to estimate optical flow from two frames, VideoFlow concurrently estimates bi-directional optical flows for multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Xiaoyu Shi , Zhaoyang Huang , Weikang Bian , Dasong Li , Manyuan Zhang , Ka Chun Cheung , Simon See , Hongwei Qin , Jifeng Dai , Hongsheng Li

We address the problem of cross-modal fine-grained action retrieval between text and video. Cross-modal retrieval is commonly achieved through learning a shared embedding space, that can indifferently embed modalities. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2019-08-12 Michael Wray , Diane Larlus , Gabriela Csurka , Dima Damen

Video semantic segmentation (VSS) is a computationally expensive task due to the per-frame prediction for videos of high frame rates. In recent work, compact models or adaptive network strategies have been proposed for efficient VSS.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Yubin Hu , Yuze He , Yanghao Li , Jisheng Li , Yuxing Han , Jiangtao Wen , Yong-Jin Liu

Enabling efficient text-video retrieval on edge-end devices is critical for real-world applications. Yet, existing methods face a critical challenge in balancing accuracy and computational efficiency: uniform frame sampling methods ensure…

Multimedia · Computer Science 2025-07-22 Deyu Zhang , Tingting Long , Jinrui Zhang , Ligeng Chen , Ju Ren , Yaoxue Zhang

In recent years, cross-modal retrieval has drawn much attention due to the rapid growth of multimodal data. It takes one type of data as the query to retrieve relevant data of another type. For example, a user can use a text to retrieve…

Multimedia · Computer Science 2016-07-22 Kaiye Wang , Qiyue Yin , Wei Wang , Shu Wu , Liang Wang

Existing video captioning approaches typically require to first sample video frames from a decoded video and then conduct a subsequent process (e.g., feature extraction and/or captioning model learning). In this pipeline, manual frame…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Yaojie Shen , Xin Gu , Kai Xu , Heng Fan , Longyin Wen , Libo Zhang

Video understanding plays a fundamental role for content moderation on short video platforms, enabling the detection of inappropriate content. While classification remains the dominant approach for content moderation, it often struggles in…

Information Retrieval · Computer Science 2025-07-03 Hanzhong Liang , Jinghao Shi , Xiang Shen , Zixuan Wang , Vera Wen , Ardalan Mehrani , Zhiqian Chen , Yifan Wu , Zhixin Zhang

There has been a growing trend in compressing and transmitting videos from terminals for machine vision tasks. Nevertheless, most video coding optimization method focus on minimizing distortion according to human perceptual metrics,…

Multimedia · Computer Science 2025-12-18 Fei Zhao , Mengxi Guo , Shijie Zhao , Junlin Li , Li Zhang , Xiaodong Xie

Despite recent interest and advances in facial micro-expression research, there is still plenty room for improvement in terms of micro-expression recognition. Conventional feature extraction approaches for micro-expression video consider…

Computer Vision and Pattern Recognition · Computer Science 2018-02-16 Sze-Teng Liong , John See , KokSheik Wong , Raphael C. -W. Phan

Despite the success of deep learning in video understanding tasks, processing every frame in a video is computationally expensive and often unnecessary in real-time applications. Frame selection aims to extract the most informative and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Mingjun Zhao , Yakun Yu , Xiaoli Wang , Lei Yang , Di Niu

Many deep learning based video compression artifact removal algorithms have been proposed to recover high-quality videos from low-quality compressed videos. Recently, methods were proposed to mine spatiotemporal information via utilizing…

Image and Video Processing · Electrical Eng. & Systems 2021-06-01 Yi Xu , Minyi Zhao , Jing Liu , Xinjian Zhang , Longwen Gao , Shuigeng Zhou , Huyang Sun

Video retrieval is becoming increasingly important owing to the rapid emergence of videos on the Internet. The dominant paradigm for video retrieval learns video-text representations by pushing the distance between the similarity of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Feng He , Qi Wang , Zhifan Feng , Wenbin Jiang , Yajuan Lv , Yong zhu , Xiao Tan

Utilizing vision and language models (VLMs) pre-trained on large-scale image-text pairs is becoming a promising paradigm for open-vocabulary visual recognition. In this work, we extend this paradigm by leveraging motion and audio that…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Rui Qian , Yeqing Li , Zheng Xu , Ming-Hsuan Yang , Serge Belongie , Yin Cui

The exponential growth of video content has created an urgent need for efficient multimodal moment retrieval systems. However, existing approaches face three critical challenges: (1) fixed-weight fusion strategies fail across cross modal…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Toan Le Ngo Thanh , Phat Ha Huu , Tan Nguyen Dang Duy , Thong Nguyen Le Minh , Anh Nguyen Nhu Tinh

Video retrieval requires aligning visual content with corresponding natural language descriptions. In this paper, we introduce Modality Auxiliary Concepts for Video Retrieval (MAC-VR), a novel approach that leverages modality-specific tags…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Adriano Fragomeni , Dima Damen , Michael Wray