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We propose an end-to-end trainable network that can simultaneously detect and recognize text of arbitrary shape, making substantial progress on the open problem of reading scene text of irregular shape. We formulate arbitrary shape text…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Siyang Qin , Alessandro Bissacco , Michalis Raptis , Yasuhisa Fujii , Ying Xiao

In this paper, we conduct a study on the state-of-the-art methods for text-to-image synthesis and propose a framework to evaluate these methods. We consider syntheses where an image contains a single or multiple objects. Our study outlines…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Tan M. Dinh , Rang Nguyen , Binh-Son Hua

Since Intersection-over-Union (IoU) based optimization maintains the consistency of the final IoU prediction metric and losses, it has been widely used in both regression and classification branches of single-stage 2D object detectors.…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Hualian Sheng , Sijia Cai , Na Zhao , Bing Deng , Jianqiang Huang , Xian-Sheng Hua , Min-Jian Zhao , Gim Hee Lee

As scene segmentation systems reach visually accurate results, many recent papers focus on making these network architectures faster, smaller and more efficient. In particular, studies often aim at designingreal-time'systems. Achieving this…

计算机视觉与模式识别 · 计算机科学 2022-04-21 Evann Courdier , Francois Fleuret

Most existing trackers are based on using a classifier and multi-scale estimation to estimate the target state. Consequently, and as expected, trackers have become more stable while tracking accuracy has stagnated. While trackers adopt a…

计算机视觉与模式识别 · 计算机科学 2022-01-21 Di Yuan , Xiu Shu , Nana Fan , Xiaojun Chang , Qiao Liu , Zhenyu He

In this paper, we propose a novel integrated framework for learning both text detection and recognition. For most of the existing methods, detection and recognition are treated as two isolated tasks and trained separately, since parameters…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Wanchen Sui , Qing Zhang , Jun Yang , Wei Chu

Progress in Text-to-Image (T2I) models has significantly improved the generation of images from textual descriptions. However, existing evaluation metrics do not adequately assess the models' ability to handle a diverse range of textual…

计算机视觉与模式识别 · 计算机科学 2024-11-18 Jingtao Cao , Zheng Zhang , Hongru Wang , Kam-Fai Wong

The irregular contour representation is one of the tough challenges in scene text detection. Although segmentation-based methods have achieved significant progress with the help of flexible pixel prediction, the overlap of geographically…

计算机视觉与模式识别 · 计算机科学 2024-09-26 Xu Han , Junyu Gao , Chuang Yang , Yuan Yuan , Qi Wang

Semantic segmentation datasets often exhibit two types of imbalance: \textit{class imbalance}, where some classes appear more frequently than others and \textit{size imbalance}, where some objects occupy more pixels than others. This causes…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Zifu Wang , Maxim Berman , Amal Rannen-Triki , Philip H. S. Torr , Devis Tuia , Tinne Tuytelaars , Luc Van Gool , Jiaqian Yu , Matthew B. Blaschko

The effectiveness of Object Detection, one of the central problems in computer vision tasks, highly depends on the definition of the loss function - a measure of how accurately your ML model can predict the expected outcome. Conventional…

计算机视觉与模式识别 · 计算机科学 2022-05-26 Zhora Gevorgyan

To pursue an efficient text assembling process, existing methods detect texts via the shrink-mask expansion strategy. However, the shrinking operation loses the visual features of text margins and confuses the foreground and background…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Chuang Yang , Haozhao Ma , Xu Han , Yuan Yuan , Qi Wang

Incidental scene text spotting is considered one of the most difficult and valuable challenges in the document analysis community. Most existing methods treat text detection and recognition as separate tasks. In this work, we propose a…

计算机视觉与模式识别 · 计算机科学 2018-01-16 Xuebo Liu , Ding Liang , Shi Yan , Dagui Chen , Yu Qiao , Junjie Yan

Text spotting in natural scene images is of great importance for many image understanding tasks. It includes two sub-tasks: text detection and recognition. In this work, we propose a unified network that simultaneously localizes and…

计算机视觉与模式识别 · 计算机科学 2021-06-29 Peng Wang , Hui Li , Chunhua Shen

Large language models (LLMs) have shown the capability to generate fluent and logical content, presenting significant challenges to machine-generated text detection, particularly text polished by adversarial perturbations such as…

计算与语言 · 计算机科学 2025-09-24 Alva West , Luodan Zhang , Liuliu Zhang , Minjun Zhu , Yixuan Weng , Yue Zhang

Detecting irregular-shaped text instances is the main challenge for text detection. Existing approaches can be roughly divided into top-down and bottom-up perspective methods. The former encodes text contours into unified units, which…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Chuang Yang , Mulin Chen , Yuan Yuan , Qi Wang

Document comparison typically relies on optical character recognition (OCR) as its core technology. However, OCR requires the selection of appropriate language models for each document and the performance of multilingual or hybrid models…

计算机视觉与模式识别 · 计算机科学 2024-12-06 Doyoung Park , Naresh Reddy Yarram , Sunjin Kim , Minkyu Kim , Seongho Cho , Taehee Lee

In 2D/3D object detection task, Intersection-over-Union (IoU) has been widely employed as an evaluation metric to evaluate the performance of different detectors in the testing stage. However, during the training stage, the common distance…

计算机视觉与模式识别 · 计算机科学 2019-08-13 Dingfu Zhou , Jin Fang , Xibin Song , Chenye Guan , Junbo Yin , Yuchao Dai , Ruigang Yang

Bounding box regression is the crucial step in object detection. In existing methods, while $\ell_n$-norm loss is widely adopted for bounding box regression, it is not tailored to the evaluation metric, i.e., Intersection over Union (IoU).…

计算机视觉与模式识别 · 计算机科学 2019-11-20 Zhaohui Zheng , Ping Wang , Wei Liu , Jinze Li , Rongguang Ye , Dongwei Ren

Current motion-based multiple object tracking (MOT) approaches rely heavily on Intersection-over-Union (IoU) for object association. Without using 3D features, they are ineffective in scenarios with occlusions or visually similar objects.…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Milad Khanchi , Maria Amer , Charalambos Poullis

Detecting and tracking vehicles in urban scenes is a crucial step in many traffic-related applications as it helps to improve road user safety among other benefits. Various challenges remain unresolved in multi-object tracking (MOT)…