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Every hour, huge amounts of visual contents are posted on social media and user-generated content platforms. To find relevant videos by means of a natural language query, text-video retrieval methods have received increased attention over…

计算机视觉与模式识别 · 计算机科学 2022-08-04 Alex Falcon , Giuseppe Serra , Oswald Lanz

The success of CLIP has driven substantial progress in text-video retrieval. However, current methods often suffer from "blind" feature interaction, where the model struggles to discern key visual information from background noise due to…

计算机视觉与模式识别 · 计算机科学 2026-01-23 Zequn Xie , Xin Liu , Boyun Zhang , Yuxiao Lin , Sihang Cai , Tao Jin

Due to a noticeable expansion of document recognition applicability, there is a high demand for recognition on mobile devices. A mobile camera, unlike a scanner, cannot always ensure the absence of various image distortions, therefore the…

计算机视觉与模式识别 · 计算机科学 2020-02-12 Olga Petrova , Konstantin Bulatov , Vladimir L. Arlazarov

Text spotting has seen tremendous progress in recent years yielding performant techniques which can extract text at the character, word or line level. However, extracting blocks of text from images (block-level text spotting) is relatively…

计算机视觉与模式识别 · 计算机科学 2024-06-21 Ganesh Bannur , Bharadwaj Amrutur

Recently, models based on deep neural networks have dominated the fields of scene text detection and recognition. In this paper, we investigate the problem of scene text spotting, which aims at simultaneous text detection and recognition in…

计算机视觉与模式识别 · 计算机科学 2018-08-02 Pengyuan Lyu , Minghui Liao , Cong Yao , Wenhao Wu , Xiang Bai

Multimedia information retrieval from videos remains a challenging problem. While recent systems have advanced multimodal search through semantic, object, and OCR queries - and can retrieve temporally consecutive scenes - they often rely on…

Systems that can efficiently search collections of sign language videos have been highlighted as a useful application of sign language technology. However, the problem of searching videos beyond individual keywords has received limited…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Amanda Duarte , Samuel Albanie , Xavier Giró-i-Nieto , Gül Varol

Within the last years, the classification of variable stars with Machine Learning has become a mainstream area of research. Recently, visualization of time series is attracting more attention in data science as a tool to visually help…

天体物理仪器与方法 · 物理学 2019-03-13 Christian Pieringer , Karim Pichara , Márcio Catelán , Pavlos Protopapas

This article investigates a data-driven approach for semantically scene understanding, without pixelwise annotation and classifier training. Our framework parses a target image with two steps: (i) retrieving its exemplars (i.e. references)…

计算机视觉与模式识别 · 计算机科学 2015-02-04 Xionghao Liu , Wei Yang , Liang Lin , Qing Wang , Zhaoquan Cai , Jianhuang Lai

Existing state-of-the-art methods for Video Object Segmentation (VOS) learn low-level pixel-to-pixel correspondences between frames to propagate object masks across video. This requires a large amount of densely annotated video data, which…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Ali Athar , Jonathon Luiten , Alexander Hermans , Deva Ramanan , Bastian Leibe

Irregular scene text recognition has attracted much attention from the research community, mainly due to the complexity of shapes of text in natural scene. However, recent methods either rely on shape-sensitive modules such as bounding box…

计算机视觉与模式识别 · 计算机科学 2020-02-11 Shangbang Long , Yushuo Guan , Kaigui Bian , Cong Yao

This paper attacks the challenging problem of video retrieval by text. In such a retrieval paradigm, an end user searches for unlabeled videos by ad-hoc queries described exclusively in the form of a natural-language sentence, with no…

计算机视觉与模式识别 · 计算机科学 2021-02-19 Jianfeng Dong , Xirong Li , Chaoxi Xu , Xun Yang , Gang Yang , Xun Wang , Meng Wang

Contrastively-trained Vision-Language Models (VLMs), such as CLIP, have become the standard approach for learning discriminative vision-language representations. However, these models often exhibit shallow language understanding,…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Ioanna Ntinou , Alexandros Xenos , Yassine Ouali , Adrian Bulat , Georgios Tzimiropoulos

The digital image data is rapidly expanding in quantity and heterogeneity. The traditional information retrieval techniques does not meet the user's demand, so there is need to develop an efficient system for content based image retrieval.…

多媒体 · 计算机科学 2010-05-25 Uday Pratap Singh , Sanjeev Jain , Gulfishan Firdose Ahmed

Scene text recognition is a rapidly developing field that faces numerous challenges due to the complexity and diversity of scene text, including complex backgrounds, diverse fonts, flexible arrangements, and accidental occlusions. In this…

计算机视觉与模式识别 · 计算机科学 2024-02-22 Mingkun Yang , Biao Yang , Minghui Liao , Yingying Zhu , Xiang Bai

Most existing text recognition methods are trained on large-scale synthetic datasets due to the scarcity of labeled real-world datasets. Synthetic images, however, cannot faithfully reproduce real-world scenarios, such as uneven…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Zhengmi Tang , Yuto Mitsui , Tomo Miyazaki , Shinichiro Omachi

Typography and layout lead to the hierarchical organisation of text in words, text lines, paragraphs. This inherent structure is a key property of text in any script and language, which has nonetheless been minimally leveraged by existing…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Lluis Gomez , Dimosthenis Karatzas

This paper presents a framework for the analysis of changes in visual streams: ordered sequences of images, possibly separated by significant time gaps. We propose a new approach to incorporating unlabeled data into training to generate…

计算机视觉与模式识别 · 计算机科学 2020-04-13 Davis Gilton , Ruotian Luo , Rebecca Willett , Greg Shakhnarovich

Texts from scene images typically consist of several characters and exhibit a characteristic sequence structure. Existing methods capture the structure with the sequence-to-sequence models by an encoder to have the visual representations…

计算机视觉与模式识别 · 计算机科学 2020-02-18 Xiangcheng Du , Tianlong Ma , Yingbin Zheng , Hao Ye , Xingjiao Wu , Liang He

Recently, inspired by Transformer, self-attention-based scene text recognition approaches have achieved outstanding performance. However, we find that the size of model expands rapidly with the lexicon increasing. Specifically, the number…

计算机视觉与模式识别 · 计算机科学 2020-09-24 Bingcong Li , Xin Tang , Xianbiao Qi , Yihao Chen , Rong Xiao