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Cascade classifiers are widely used in real-time object detection. Different from conventional classifiers that are designed for a low overall classification error rate, a classifier in each node of the cascade is required to achieve an…

Computer Vision and Pattern Recognition · Computer Science 2013-01-11 Chunhua Shen , Peng Wang , Sakrapee Paisitkriangkrai , Anton van den Hengel

Cascade classifiers are widely used in real-time object detection. Different from conventional classifiers that are designed for a low overall classification error rate, a classifier in each node of the cascade is required to achieve an…

Computer Vision and Pattern Recognition · Computer Science 2010-08-24 Chunhua Shen , Peng Wang , Anton van den Hengel

Cascaded AdaBoost classifier is a well-known efficient object detection algorithm. The cascade structure has many parameters to be determined. Most of existing cascade learning algorithms are designed by assigning detection rate and false…

Computer Vision and Pattern Recognition · Computer Science 2016-09-13 Yanwei Pang , Jiale Cao , Xuelong Li

In this paper, we present a new approach to learning cascaded classifiers for use in computing environments that involve networks of heterogeneous and resource-constrained, low-power embedded compute and sensing nodes. We present a…

Machine Learning · Statistics 2017-06-27 Hamid Dadkhahi , Benjamin M. Marlin

Cascade is a widely used approach that rejects obvious negative samples at early stages for learning better classifier and faster inference. This paper presents chained cascade network (CC-Net). In this CC-Net, the cascaded classifier at a…

Computer Vision and Pattern Recognition · Computer Science 2017-02-24 Wanli Ouyang , Ku Wang , Xin Zhu , Xiaogang Wang

We develop a fast end-to-end method for training lightweight neural networks using multiple classifier heads. By allowing the model to determine the importance of each head and rewarding the choice of a single shallow classifier, we are…

Machine Learning · Computer Science 2020-04-20 Bartosz Wójcik , Maciej Wołczyk , Klaudia Bałazy , Jacek Tabor

The problem of faces detection in images or video streams is a classical problem of computer vision. The multiple solutions of this problem have been proposed, but the question of their optimality is still open. Many algorithms achieve a…

Computer Vision and Pattern Recognition · Computer Science 2015-11-24 Ilya Kalinovskii , Vladimir Spitsyn

Machine-learning classifiers provide high quality of service in classification tasks. Research now targets cost reduction measured in terms of average processing time or energy per solution. Revisiting the concept of cascaded classifiers,…

Machine Learning · Computer Science 2022-03-10 Cecilia Latotzke , Johnson Loh , Tobias Gemmeke

Real-world face detection and alignment demand an advanced discriminative model to address challenges by pose, lighting and expression. Illuminated by the deep learning algorithm, some convolutional neural networks based face detection and…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Weilin Cong , Sanyuan Zhao , Hui Tian , Jianbing Shen

Object detection is one of the key tasks in computer vision. The cascade framework of Viola and Jones has become the de facto standard. A classifier in each node of the cascade is required to achieve extremely high detection rates, instead…

Computer Vision and Pattern Recognition · Computer Science 2010-05-25 Chunhua Shen , Peng Wang , Hanxi Li

At present, object recognition studies are mostly conducted in a closed lab setting with classes in test phase typically in training phase. However, real-world problem is far more challenging because: i) new classes unseen in the training…

Machine Learning · Computer Science 2020-03-24 Xiaojie Guo , Amir Alipour-Fanid , Lingfei Wu , Hemant Purohit , Xiang Chen , Kai Zeng , Liang Zhao

The cascade training technique which was developed during our work on the MiniBooNE particle identification has been found to be a very efficient way to improve the selection performance, especially when very low background contamination…

Data Analysis, Statistics and Probability · Physics 2008-11-26 Yong Liu , Ion Stancu

Lung nodule detection is a class imbalanced problem because nodules are found with much lower frequency than non-nodules. In the class imbalanced problem, conventional classifiers tend to be overwhelmed by the majority class and ignore the…

Computer Vision and Pattern Recognition · Computer Science 2016-11-23 Masaharu Sakamoto , Hiroki Nakano

Recent researches attempt to improve the detection performance by adopting the idea of cascade for single-stage detectors. In this paper, we analyze and discover that inconsistency is the major factor limiting the performance. The refined…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Hongkai Zhang , Hong Chang , Bingpeng Ma , Shiguang Shan , Xilin Chen

Humans focus attention on different face regions when recognizing face attributes. Most existing face attribute classification methods use the whole image as input. Moreover, some of these methods rely on fiducial landmarks to provide…

Computer Vision and Pattern Recognition · Computer Science 2017-09-14 Hui Ding , Hao Zhou , Shaohua Kevin Zhou , Rama Chellappa

Real-time object detection is one of the core problems in computer vision. The cascade boosting framework proposed by Viola and Jones has become the standard for this problem. In this framework, the learning goal for each node is…

Computer Vision and Pattern Recognition · Computer Science 2010-09-17 Peng Wang , Chunhua Shen , Nick Barnes , Hong Zheng , Zhang Ren

This paper proposes anchor pruning for object detection in one-stage anchor-based detectors. While pruning techniques are widely used to reduce the computational cost of convolutional neural networks, they tend to focus on optimizing the…

Computer Vision and Pattern Recognition · Computer Science 2022-06-02 Maxim Bonnaerens , Matthias Freiberger , Joni Dambre

We report, for the first time, on the cascade weight shedding phenomenon in deep neural networks where in response to pruning a small percentage of a network's weights, a large percentage of the remaining is shed over a few epochs during…

Machine Learning · Computer Science 2021-03-22 Kambiz Azarian , Fatih Porikli

Deep networks can learn to accurately recognize objects of a category by training on a large number of annotated images. However, a meta-learning challenge known as a low-shot image recognition task comes when only a few images with…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Mengting Chen , Xinggang Wang , Heng Luo , Yifeng Geng , Wenyu Liu

Many typical applications of object detection operate within a prescribed false-positive range. In this situation the performance of a detector should be assessed on the basis of the area under the ROC curve over that range, rather than…

Computer Vision and Pattern Recognition · Computer Science 2013-10-04 Sakrapee Paisitkriangkrai , Chunhua Shen , Anton van den Hengel
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