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Related papers: A Boosting Method to Face Image Super-resolution

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Sparse representation of real-life images is a very effective approach in imaging applications, such as denoising. In recent years, with the growth of computing power, data-driven strategies exploiting the redundancy within patches…

Image and Video Processing · Electrical Eng. & Systems 2022-08-25 Sayantan Dutta , Adrian Basarab , Bertrand Georgeot , Denis Kouamé

AdaBoost is an important algorithm in machine learning and is being widely used in object detection. AdaBoost works by iteratively selecting the best amongst weak classifiers, and then combines several weak classifiers to obtain a strong…

Distributed, Parallel, and Cluster Computing · Computer Science 2013-06-07 Munther Abualkibash , Ahmed ElSayed , Ausif Mahmood

Data augmentation is an effective way to improve the performance of deep networks. Unfortunately, current methods are mostly developed for high-level vision tasks (e.g., classification) and few are studied for low-level vision tasks (e.g.,…

Image and Video Processing · Electrical Eng. & Systems 2020-04-24 Jaejun Yoo , Namhyuk Ahn , Kyung-Ah Sohn

Content based image retrieval, a technique which uses visual contents of image to search images from large scale image databases according to users' interests. This paper provides a comprehensive survey on recent technology used in the area…

Information Retrieval · Computer Science 2014-02-21 D. Johnvictor , G. Selvavinayagam

In video based face recognition, face images are typically captured over multiple frames in uncontrolled conditions, where head pose, illumination, shadowing, motion blur and focus change over the sequence. Additionally, inaccuracies in…

Computer Vision and Pattern Recognition · Computer Science 2014-03-17 Yongkang Wong , Shaokang Chen , Sandra Mau , Conrad Sanderson , Brian C. Lovell

It is known that Boosting can be interpreted as a gradient descent technique to minimize an underlying loss function. Specifically, the underlying loss being minimized by the traditional AdaBoost is the exponential loss, which is proved to…

Computer Vision and Pattern Recognition · Computer Science 2017-06-26 Kaidong Wang , Yao Wang , Qian Zhao , Deyu Meng , Zongben Xu

Face aging simulation has received rising investigations nowadays, whereas it still remains a challenge to generate convincing and natural age-progressed face images. In this paper, we present a novel approach to such an issue by using…

Computer Vision and Pattern Recognition · Computer Science 2016-05-04 Hongyu Yang , Di Huang , Yunhong Wang , Heng Wang , Yuanyan Tang

Surface reconstruction with preservation of geometric features is a challenging computer vision task. Despite significant progress in implicit shape reconstruction, state-of-the-art mesh extraction methods often produce aliased,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Natalia Soboleva , Olga Gorbunova , Maria Ivanova , Evgeny Burnaev , Matthias Nießner , Denis Zorin , Alexey Artemov

We aim at the solution of inverse problems in imaging, by combining a penalized sparse representation of image patches with an unconstrained smooth one. This allows for a straightforward interpretation of the reconstruction. We formulate…

Image and Video Processing · Electrical Eng. & Systems 2025-03-18 Stanislas Ducotterd , Sebastian Neumayer , Michael Unser

Facial representation pre-training is crucial for tasks like facial recognition, expression analysis, and virtual reality. However, existing methods face three key challenges: (1) failing to capture distinct facial features and fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Yin Xie , Zhichao Chen , Zeyu Xiao , Yongle Zhao , Xiang An , Kaicheng Yang , Zimin Ran , Jia Guo , Ziyong Feng , Jiankang Deng

Boosting is an extremely successful idea, allowing one to combine multiple low accuracy classifiers into a much more accurate voting classifier. In this work, we present a new and surprisingly simple Boosting algorithm that obtains a…

Machine Learning · Computer Science 2024-09-02 Mikael Møller Høgsgaard , Kasper Green Larsen , Markus Engelund Mathiasen

In this paper, we propose a novel image denoising algorithm exploiting features from both spatial as well as transformed domain. We implement intensity-invariance based improved grouping for collaborative support-agnostic sparse…

Computer Vision and Pattern Recognition · Computer Science 2018-05-03 Muzammil Behzad

Collaborative filtering recommender systems (CFRSs) are the key components of successful e-commerce systems. Actually, CFRSs are highly vulnerable to attacks since its openness. However, since attack size is far smaller than that of genuine…

Information Retrieval · Computer Science 2015-06-16 Zhihai Yang , Lin Xu , Zhongmin Cai

Face super-resolution is a technology that transforms a low-resolution face image into the corresponding high-resolution one. In this paper, we build a novel parsing map guided face super-resolution network which extracts the face prior…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Chenyang Wang , Junjun Jiang , Zhiwei Zhong , Deming Zhai , Xianming Liu

Large pre-trained transformers have revolutionized artificial intelligence across various domains, and fine-tuning remains the dominant approach for adapting these models to downstream tasks due to the cost of training from scratch.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Wei Chen , Jingxi Yu , Zichen Miao , Qiang Qiu

Large-scale, big-variant, high-quality data are crucial for developing robust and successful deep-learning models for medical applications since they potentially enable better generalization performance and avoid overfitting. However, the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Zheyuan Zhang , Lanhong Yao , Bin Wang , Debesh Jha , Gorkem Durak , Elif Keles , Alpay Medetalibeyoglu , Ulas Bagci

This paper presents an adaptive and intelligent sparse model for digital image sampling and recovery. In the proposed sampler, we adaptively determine the number of required samples for retrieving image based on space-frequency-gradient…

Computer Vision and Pattern Recognition · Computer Science 2017-11-27 Ali Taimori , Farokh Marvasti

In this paper, we propose a novel image denoising algorithm using collaborative support-agnostic sparse reconstruction. An observed image is first divided into patches. Similarly structured patches are grouped together to be utilized for…

Computer Vision and Pattern Recognition · Computer Science 2016-09-13 Muzammil Behzad , Mudassir Masood , Tarig Ballal , Maha Shadaydeh , Tareq Y. Al-Naffouri

In this letter, we propose a novel image denoising method based on correlation preserving sparse coding. Because the instable and unreliable correlations among basis set can limit the performance of the dictionary-driven denoising methods,…

Computer Vision and Pattern Recognition · Computer Science 2016-12-26 Rui Chen , Huizhu Jia , Xiaodong Xie , Wen Gao

Recent image classification algorithms, by learning deep features from large-scale datasets, have achieved significantly better results comparing to the classic feature-based approaches. However, there are still various challenges of image…

Computer Vision and Pattern Recognition · Computer Science 2021-06-02 Hao Cheng , Kim-Hui Yap , Bihan Wen