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Deep convolutional neural networks (CNN) have recently been shown in many computer vision and pattern recog- nition applications to outperform by a significant margin state- of-the-art solutions that use traditional hand-crafted features.…

Robotics · Computer Science 2015-04-22 Yi Hou , Hong Zhang , Shilin Zhou

We propose a novel method that uses convolutional neural networks (CNNs) for feature extraction. Not just limited to conventional spatial domain representation, we use multilevel 2D discrete Haar wavelet transform, where image…

Computer Vision and Pattern Recognition · Computer Science 2018-01-08 Soumya Ukil , Swarnendu Ghosh , Sk Md Obaidullah , K. C. Santosh , Kaushik Roy , Nibaran Das

Our Multi-Column Deep Neural Networks achieve best known recognition rates on Chinese characters from the ICDAR 2011 and 2013 offline handwriting competitions, approaching human performance.

Computer Vision and Pattern Recognition · Computer Science 2013-09-03 Dan Cireşan , Jürgen Schmidhuber

We present a new handwritten text segmentation method by training a convolutional neural network (CNN) in an end-to-end manner. Many conventional methods addressed this problem by extracting connected components and then classifying them.…

Computer Vision and Pattern Recognition · Computer Science 2019-06-13 Junho Jo , Hyung Il Koo , Jae Woong Soh , Nam Ik Cho

Recently, great success has been achieved in offline handwritten Chinese character recognition by using deep learning methods. Chinese characters are mainly logographic and consist of basic radicals, however, previous research mostly…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Wenchao Wang , Jianshu Zhang , Jun Du , Zi-Rui Wang , Yixing Zhu

Deep Convolutional Neural Networks (CNN) have shown great success in supervised classification tasks such as character classification or dating. Deep learning methods typically need a lot of annotated training data, which is not available…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Vincent Christlein , Martin Gropp , Stefan Fiel , Andreas Maier

Deep convolutional neural networks (CNN) have shown their promise as a universal representation for recognition. However, global CNN activations lack geometric invariance, which limits their robustness for classification and matching of…

Computer Vision and Pattern Recognition · Computer Science 2014-09-10 Yunchao Gong , Liwei Wang , Ruiqi Guo , Svetlana Lazebnik

Deep Convolutional Neural Networks (CNNs) have recently reached state-of-the-art Handwritten Text Recognition (HTR) performance. However, recent research has shown that typical CNNs' learning performance is limited since they are…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Hanadi Hassen Mohammed , Junaid Malik , Somaya Al-Madeed , Serkan Kiranyaz

Convolutional Neural Network (CNN) has demonstrated promising performance in single-label image classification tasks. However, how CNN best copes with multi-label images still remains an open problem, mainly due to the complex underlying…

Computer Vision and Pattern Recognition · Computer Science 2016-12-06 Yunchao Wei , Wei Xia , Junshi Huang , Bingbing Ni , Jian Dong , Yao Zhao , Shuicheng Yan

In image classification, visual separability between different object categories is highly uneven, and some categories are more difficult to distinguish than others. Such difficult categories demand more dedicated classifiers. However,…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Zhicheng Yan , Hao Zhang , Robinson Piramuthu , Vignesh Jagadeesh , Dennis DeCoste , Wei Di , Yizhou Yu

We propose a new method for creating computationally efficient convolutional neural networks (CNNs) by using low-rank representations of convolutional filters. Rather than approximating filters in previously-trained networks with more…

Computer Vision and Pattern Recognition · Computer Science 2016-11-30 Yani Ioannou , Duncan Robertson , Jamie Shotton , Roberto Cipolla , Antonio Criminisi

The long-standing challenges for offline handwritten Chinese character recognition (HCCR) are twofold: Chinese characters can be very diverse and complicated while similarly looking, and cursive handwriting (due to increased writing speed…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Yao Xiao , Dan Meng , Cewu Lu , Chi-Keung Tang

Recently, great progress has been made for online handwritten Chinese character recognition due to the emergence of deep learning techniques. However, previous research mostly treated each Chinese character as one class without explicitly…

Computer Vision and Pattern Recognition · Computer Science 2018-01-31 Jianshu Zhang , Yixing Zhu , Jun Du , Lirong Dai

Single online handwritten Chinese character recognition~(single OLHCCR) has achieved prominent performance. However, in real application scenarios, users always write multiple Chinese characters to form one complete sentence and the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Yunxin Li , Qian Yang , Qingcai Chen , Lin Ma , Baotian Hu , Xiaolong Wang , Yuxin Ding

Convolutional Neural Networks (CNNs) have achieved remarkable success across a wide range of machine learning tasks by leveraging hierarchical feature learning through deep architectures. However, the large number of layers and millions of…

Machine Learning · Statistics 2025-11-18 Biyi Fang , Truong Vo , Jean Utke , Diego Klabjan

Deep neural networks, albeit their great success on feature learning in various computer vision tasks, are usually considered as impractical for online visual tracking because they require very long training time and a large number of…

Computer Vision and Pattern Recognition · Computer Science 2016-05-04 Hanxi Li , Yi Li , Fatih Porikli

Online handwritten Chinese text recognition (OHCTR) is a challenging problem as it involves a large-scale character set, ambiguous segmentation, and variable-length input sequences. In this paper, we exploit the outstanding capability of…

Computer Vision and Pattern Recognition · Computer Science 2017-05-26 Zecheng Xie , Zenghui Sun , Lianwen Jin , Hao Ni , Terry Lyons

In this paper, we propose a novel model, named Stroke Sequence-dependent Deep Convolutional Neural Network (SSDCNN), using the stroke sequence information and eight-directional features for Online Handwritten Chinese Character Recognition…

Computer Vision and Pattern Recognition · Computer Science 2016-10-14 Baotian Hu , Xin Liu , Xiangping Wu , Qingcai Chen

Deep Convolutional Neural Networks (CNN) have exhibited superior performance in many visual recognition tasks including image classification, object detection, and scene label- ing, due to their large learning capacity and resistance to…

Computer Vision and Pattern Recognition · Computer Science 2016-10-12 Miao Sun , Tony X. Han , Xun Xu , Ming-Chang Liu , Ahmad Khodayari-Rostamabad

We present an approach to learn a dense pixel-wise labeling from image-level tags. Each image-level tag imposes constraints on the output labeling of a Convolutional Neural Network (CNN) classifier. We propose Constrained CNN (CCNN), a…

Computer Vision and Pattern Recognition · Computer Science 2015-10-20 Deepak Pathak , Philipp Krähenbühl , Trevor Darrell