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Zero-shot denoising aims to denoise observations without access to training samples or clean reference images. This setting is particularly relevant in practical imaging scenarios involving specialized domains such as medical imaging or…

Image and Video Processing · Electrical Eng. & Systems 2025-12-02 Ali Zafari , Xi Chen , Shirin Jalali

Foundational to the Chinese language and culture, Chinese characters encompass extraordinarily extensive and ever-expanding categories, with the latest Chinese GB18030-2022 standard containing 87,887 categories. The accurate recognition of…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Yuyi Zhang , Yongxin Shi , Peirong Zhang , Yixin Zhao , Zhenhua Yang , Lianwen Jin

Optical Character Recognition software (OCR) are important tools for obtaining accessible texts. We propose the use of artificial neural networks (ANN) in order to develop pattern recognition algorithms capable of recognizing both normal…

Neural and Evolutionary Computing · Computer Science 2016-07-08 Giuseppe Airò Farulla , Tiziana Armano , Anna Capietto , Nadir Murru , Rosaria Rossini

Scaling up visual category recognition to large numbers of classes remains challenging. A promising research direction is zero-shot learning, which does not require any training data to recognize new classes, but rather relies on some form…

Computer Vision and Pattern Recognition · Computer Science 2016-04-12 Zeynep Akata , Mateusz Malinowski , Mario Fritz , Bernt Schiele

In this paper we present an OCR for Handwritten Devnagari Characters. Basic symbols are recognized by neural classifier. We have used four feature extraction techniques namely, intersection, shadow feature, chain code histogram and straight…

Computer Vision and Pattern Recognition · Computer Science 2010-07-01 Sandhya Arora , Debotosh Bhattacharjee , Mita Nasipuri , Dipak Kumar Basu , Mahantapas Kundu

Video recognition models are typically trained on fixed taxonomies which are often too coarse, collapsing distinctions in object, manner or outcome under a single label. As tasks and definitions evolve, such models cannot accommodate…

Computer Vision and Pattern Recognition · Computer Science 2026-02-19 Kaiting Liu , Hazel Doughty

Digitization of scanned receipts aims to extract text from receipt images and save it into structured documents. This is usually split into two sub-tasks: text localization and optical character recognition (OCR). Most existing OCR models…

Computation and Language · Computer Science 2023-10-17 Hongkuan Zhang , Edward Whittaker , Ikuo Kitagishi

Recent text-to-image matching models apply contrastive learning to large corpora of uncurated pairs of images and sentences. While such models can provide a powerful score for matching and subsequent zero-shot tasks, they are not capable of…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Yoad Tewel , Yoav Shalev , Idan Schwartz , Lior Wolf

Prevalent techniques in zero-shot learning do not generalize well to other related problem scenarios. Here, we present a unified approach for conventional zero-shot, generalized zero-shot and few-shot learning problems. Our approach is…

Computer Vision and Pattern Recognition · Computer Science 2018-10-17 Shafin Rahman , Salman H. Khan , Fatih Porikli

This report presents a solution for the zero-shot referring expression comprehension task. Visual-language multimodal base models (such as CLIP, SAM) have gained significant attention in recent years as a cornerstone of mainstream research.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Longfei Huang , Feng Yu , Zhihao Guan , Zhonghua Wan , Yang Yang

Online and offline handwritten Chinese text recognition (HTCR) has been studied for decades. Early methods adopted oversegmentation-based strategies but suffered from low speed, insufficient accuracy, and high cost of character segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Dezhi Peng , Lianwen Jin , Weihong Ma , Canyu Xie , Hesuo Zhang , Shenggao Zhu , Jing Li

Multi-label classification is an essential task utilized in a wide variety of real-world applications. Multi-label zero-shot learning is a method for classifying images into multiple unseen categories for which no training data is…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Muhammad Ali , Salman Khan

Recognition of ancient Tamil characters has always been a challenge for epigraphers. This is primarily because the language has evolved over the several centuries and the character set over this time has both expanded and diversified. This…

Computer Vision and Pattern Recognition · Computer Science 2019-07-12 Lalitha Giridhar , Aishwarya Dharani and , Velmathi Guruviah

Kurdish libraries have many historical publications that were printed back in the early days when printing devices were brought to Kurdistan. Having a good Optical Character Recognition (OCR) to help process these publications and…

Computation and Language · Computer Science 2024-04-10 Blnd Yaseen , Hossein Hassani

Object recognition systems usually require fully complete manually labeled training data to train the classifier. In this paper, we study the problem of object recognition where the training samples are missing during the classifier…

Computer Vision and Pattern Recognition · Computer Science 2014-10-15 Wai Lam Hoo , Chee Seng Chan

Zero-shot learning (ZSL) aims to recognize objects of novel classes without any training samples of specific classes, which is achieved by exploiting the semantic information and auxiliary datasets. Recently most ZSL approaches focus on…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Huajie Jiang , Ruiping Wang , Shiguang Shan , Xilin Chen

Automatically identifying the structural substrates underlying cardiac abnormalities can potentially provide real-time guidance for interventional procedures. With the knowledge of cardiac tissue substrates, the treatment of complex…

Image and Video Processing · Electrical Eng. & Systems 2022-06-10 Ziyi Huang , Yu Gan , Theresa Lye , Yanchen Liu , Haofeng Zhang , Andrew Laine , Elsa Angelini , Christine Hendon

Deep neural networks are increasingly used in medical imaging for tasks such as pathological classification, but they face challenges due to the scarcity of high-quality, expert-labeled training data. Recent efforts have utilized…

Machine Learning · Computer Science 2024-10-14 Jongseong Jang , Daeun Kyung , Seung Hwan Kim , Honglak Lee , Kyunghoon Bae , Edward Choi

Existing object detection models are mainly trained on large-scale labeled datasets. However, annotating data for novel aerial object classes is expensive since it is time-consuming and may require expert knowledge. Thus, it is desirable to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-04 Zhengqing Zang , Chenyu Lin , Chenwei Tang , Tao Wang , Jiancheng Lv

Optical character recognition (OCR) for historical documents is a complex procedure subject to a unique set of material issues, including inconsistencies in typefaces and low quality scanning. Consequently, even the most sophisticated OCR…

Computation and Language · Computer Science 2020-04-27 Alberto Poncelas , Mohammad Aboomar , Jan Buts , James Hadley , Andy Way