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相关论文: Unsupervised Text Extraction from G-Maps

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We propose an unsupervised image segmentation method using features from pre-trained text-to-image diffusion models. Inspired by classic spectral clustering approaches, we construct adjacency matrices from self-attention layers between…

计算机视觉与模式识别 · 计算机科学 2025-11-27 Daniela Ivanova , Marco Aversa , Paul Henderson , John Williamson

In this work, we investigate performing semantic segmentation solely through the training on image-sentence pairs. Due to the lack of dense annotations, existing text-supervised methods can only learn to group an image into semantic regions…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Yabo Zhang , Zihao Wang , Jun Hao Liew , Jingjia Huang , Manyu Zhu , Jiashi Feng , Wangmeng Zuo

Text data present in multimedia contain useful information for automatic annotation, indexing. Extracted information used for recognition of the overlay or scene text from a given video or image. The Extracted text can be used for…

信息检索 · 计算机科学 2014-04-08 Avinash N Bhute , B. B. Meshram

Unsupervised image-to-image translation aims to learn the mapping between two visual domains with unpaired samples. Existing works focus on disentangling domain-invariant content code and domain-specific style code individually for…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Yunfei Liu , Haofei Wang , Yang Yue , Feng Lu

The task of unsupervised semantic segmentation aims to cluster pixels into semantically meaningful groups. Specifically, pixels assigned to the same cluster should share high-level semantic properties like their object or part category.…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Wouter Van Gansbeke , Simon Vandenhende , Luc Van Gool

The recent rise of unsupervised and self-supervised learning has dramatically reduced the dependency on labeled data, providing effective image representations for transfer to downstream vision tasks. Furthermore, recent works employed…

机器学习 · 计算机科学 2021-06-14 Andrey Voynov , Stanislav Morozov , Artem Babenko

Unsupervised pre-training has been proven as an effective approach to boost various downstream tasks given limited labeled data. Among various methods, contrastive learning learns a discriminative representation by constructing positive and…

图像与视频处理 · 电气工程与系统科学 2022-02-17 Jizong Peng , Ping Wang , Marco Pedersoli , Christian Desrosiers

This paper presents a fully unsupervised approach for binary road segmentation (road vs. non-road), eliminating the reliance on costly manually labeled datasets. The method leverages scene geometry and temporal cues to distinguish road from…

计算机视觉与模式识别 · 计算机科学 2026-05-06 Sara Hatami Rostami , Behrooz Nasihatkon

Unsupervised object discovery aims to localize objects in images, while removing the dependence on annotations required by most deep learning-based methods. To address this problem, we propose a fully unsupervised, bottom-up approach, for…

计算机视觉与模式识别 · 计算机科学 2022-12-21 Sandra Kara , Hejer Ammar , Florian Chabot , Quoc-Cuong Pham

Many image segmentation techniques have been developed over the past two decades for segmenting the images, which help for object recognition, occlusion boundary estimation within motion or stereo systems, image compression, image editing.…

计算机视觉与模式识别 · 计算机科学 2014-06-03 Shradha Dakhare , Harshal Chowhan , Manoj B. Chandak

Supervised Learning has been successfully used to produce phase diagrams and identify phase boundaries when local order parameters are unavailable. Here, we apply unsupervised learning to this task. By using readily available clustering…

强关联电子 · 物理学 2019-08-19 Steven Durr , Sudip Chakravarty

Scenario-based testing is a promising approach to solve the challenge of proving the safe behavior of vehicles equipped with automated driving systems. Since an infinite number of concrete scenarios can theoretically occur in real-world…

软件工程 · 计算机科学 2023-04-24 Nico Weber , Christoph Thiem , Ulrich Konigorski

The text data present in overlaid bands convey brief descriptions of news events in broadcast videos. The process of text extraction becomes challenging as overlay text is presented in widely varying formats and often with animation…

计算机视觉与模式识别 · 计算机科学 2016-04-05 Raghvendra Kannao , Prithwijit Guha

We propose a novel algorithm for unsupervised extraction of piecewise planar models from depth-data. Among other applications, such models are a good way of enabling autonomous agents (robots, cars, drones, etc.) to effectively perceive…

计算机视觉与模式识别 · 计算机科学 2022-09-29 Richard T. Marriott , Alexander Paschevich , Radu Horaud

This paper presents a method for text line segmentation of challenging historical manuscript images. These manuscript images contain narrow interline spaces with touching components, interpenetrating vowel signs and inconsistent font types…

计算机视觉与模式识别 · 计算机科学 2021-01-22 Berat Barakat , Ahmad Droby , Majeed Kassis , Jihad El-Sana

The power of natural language generation models has provoked a flurry of interest in automatic methods to detect if a piece of text is human or machine-authored. The problem so far has been framed in a standard supervised way and consists…

计算与语言 · 计算机科学 2021-11-05 Matthias Gallé , Jos Rozen , Germán Kruszewski , Hady Elsahar

This paper presents a scene text detection technique that exploits bootstrapping and text border semantics for accurate localization of texts in scenes. A novel bootstrapping technique is designed which samples multiple 'subsections' of a…

计算机视觉与模式识别 · 计算机科学 2018-08-01 Chuhui Xue , Shijian Lu , Fangneng Zhan

This work presents an unsupervised deep discriminant analysis for clustering. The method is based on deep neural networks and aims to minimize the intra-cluster discrepancy and maximize the inter-cluster discrepancy in an unsupervised…

机器学习 · 计算机科学 2022-06-13 Jinyu Cai , Wenzhong Guo , Jicong Fan

This paper introduces a new way for text-line extraction by integrating deep-learning based pre-classification and state-of-the-art segmentation methods. Text-line extraction in complex handwritten documents poses a significant challenge,…

计算机视觉与模式识别 · 计算机科学 2019-07-02 Michele Alberti , Lars Vögtlin , Vinaychandran Pondenkandath , Mathias Seuret , Rolf Ingold , Marcus Liwicki

Many edge and contour detection algorithms give a soft-value as an output and the final binary map is commonly obtained by applying an optimal threshold. In this paper, we propose a novel method to detect image contours from the extracted…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Zahra Mousavi Kouzehkanan , Reshad Hosseini , Babak Nadjar Araabi