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The biggest challenge in the field of image processing is to recognize documents both in printed and handwritten format. Optical Character Recognition OCR is a type of document image analysis where scanned digital image that contains either…

计算机视觉与模式识别 · 计算机科学 2016-12-05 Singh Vijendra , Nisha Vasudeva , Hem Jyotsana Parashar

Video imaging is often affected by complex degradations such as blur, noise, and compression artifacts. Traditional restoration methods follow a "single-task single-model" paradigm, resulting in poor generalization and high computational…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Shuning Sun , Yu Zhang , Chen Wu , Dianjie Lu , Dianjie Lu , Guijuan Zhan , Yang Weng , Zhuoran Zheng

In the real world, documents are organized in different formats and varied modalities. Traditional retrieval pipelines require tailored document parsing techniques and content extraction modules to prepare input for indexing. This process…

信息检索 · 计算机科学 2024-12-03 Xueguang Ma , Sheng-Chieh Lin , Minghan Li , Wenhu Chen , Jimmy Lin

Image reconstruction and captioning from brain activity evoked by visual stimuli allow researchers to further understand the connection between the human brain and the visual perception system. While deep generative models have recently…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Weijian Mai , Zhijun Zhang

Restoring images affected by various types of degradation, such as noise, blur, or improper exposure, remains a significant challenge in computer vision. While recent trends favor complex monolithic all-in-one architectures, these models…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Joanna Wiekiera , Martyna Zur

Diffusion Probabilistic Models (DPMs) have recently shown remarkable performance in image generation tasks, which are capable of generating highly realistic images. When adopting DPMs for image restoration tasks, the crucial aspect lies in…

计算机视觉与模式识别 · 计算机科学 2023-06-01 Yi Zhang , Xiaoyu Shi , Dasong Li , Xiaogang Wang , Jian Wang , Hongsheng Li

The performance of optical character recognition (OCR) heavily relies on document image quality, which is crucial for automatic document processing and document intelligence. However, most existing document enhancement methods require…

计算机视觉与模式识别 · 计算机科学 2023-11-17 Jiaxin Zhang , Joy Rimchala , Lalla Mouatadid , Kamalika Das , Sricharan Kumar

Detection and recognition of text from scans and other images, commonly denoted as Optical Character Recognition (OCR), is a widely used form of automated document processing with a number of methods available. Yet OCR systems still do not…

计算机视觉与模式识别 · 计算机科学 2023-01-24 Krzysztof Olejniczak , Milan Šulc

Text-image composed retrieval aims to retrieve the target image through the composed query, which is specified in the form of an image plus some text that describes desired modifications to the input image. It has recently attracted…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Shitong Sun , Jindong Gu , Shaogang Gong

Document parsing is a core task in document intelligence, supporting applications such as information extraction, retrieval-augmented generation, and automated document analysis. However, real-world documents often feature complex layouts…

The introduction of generative models has significantly advanced image super-resolution (SR) in handling real-world degradations. However, they often incur fidelity-related issues, particularly distorting textual structures. In this paper,…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Qiming Hu , Linlong Fan , Yiyan Luo , Yuhang Yu , Xiaojie Guo , Qingnan Fan

Optical Character Recognition (OCR) for data extraction from documents is essential to intelligent informatics, such as digitizing medical records and recognizing road signs. Multi-modal Large Language Models (LLMs) can solve this task and…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Hyakka Nakada , Yoshiyasu Tanaka

Industrial Retrieval-Augmented Generation (RAG) systems depend on optical character recognition (OCR) to transform visual documents into text. Existing OCR benchmarks rely on character-level metrics, which inadequately measure downstream…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Lin Sun , Wang Dexian , Jingang Huang , Linglin Zhang , Change Jia , Zhengwei Cheng , Xiangzheng Zhang

Text and formulas constitute the core informational components of many documents. Accurately and efficiently recognizing both is crucial for developing robust and generalizable document parsing systems. Recently, vision-language models…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Yongkun Du , Zhineng Chen , Yazhen Xie , Weikang Bai , Hao Feng , Wei Shi , Yuchen Su , Can Huang , Yu-Gang Jiang

Human body restoration, as a specific application of image restoration, is widely applied in practice and plays a vital role across diverse fields. However, thorough research remains difficult, particularly due to the lack of benchmark…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Jue Gong , Jingkai Wang , Zheng Chen , Xing Liu , Hong Gu , Yulun Zhang , Xiaokang Yang

Intelligent document processing pipelines extract structured entities (tables, images, and text) from documents for use in downstream systems such as knowledge bases, retrieval-augmented generation, and analytics. A persistent limitation of…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Pritesh Jha

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

Document centric RAG pipelines usually begin with OCR, followed by brittle heuristics for chunking, table parsing, and layout reconstruction. These text first workflows are costly to maintain, sensitive to small layout shifts, and often…

信息检索 · 计算机科学 2026-01-07 Anup Roy , Rishabh Gyanendra Upadhyay , Animesh Rameshbhai Panara , Robin Mills , Aidan Millar

Scene Text Image Super-Resolution (STISR) aims to restore high-resolution details in low-resolution text images, which is crucial for both human readability and machine recognition. Existing methods, however, often depend on external…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Axi Niu , Kang Zhang , Qingsen Yan , Hao Jin , Jinqiu Sun , Yanning Zhang

Previous approaches for scene text detection have already achieved promising performances across various benchmarks. However, they usually fall short when dealing with challenging scenarios, even when equipped with deep neural network…

计算机视觉与模式识别 · 计算机科学 2017-07-11 Xinyu Zhou , Cong Yao , He Wen , Yuzhi Wang , Shuchang Zhou , Weiran He , Jiajun Liang