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Enhancement of human vision to get an insight to information content is of vital importance. The traditional histogram equalization methods have been suffering from amplified contrast with the addition of artifacts and a surprising…

Computer Vision and Pattern Recognition · Computer Science 2015-08-25 Muhammad Ali Qadar , Yan Zhaowen , Li Hua

In most real-world scenarios, labeled training datasets are highly class-imbalanced, where deep neural networks suffer from generalizing to a balanced testing criterion. In this paper, we explore a novel yet simple way to alleviate this…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Jaehyung Kim , Jongheon Jeong , Jinwoo Shin

Image harmonization task aims at harmonizing different composite foreground regions according to specific background image. Previous methods would rather focus on improving the reconstruction ability of the generator by some internal…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Jingtang Liang , Chi-Man Pun

Imaging with quantum states of light promises advantages over classical approaches in terms of resolution, signal-to-noise ratio and sensitivity. However, quantum detectors are particularly sensitive sources of classical noise that can…

Quantum Physics · Physics 2019-07-16 Hugo Defienne , Matthew Reichert , Jason W Fleischer , Daniele Faccio

In this paper, we propose a new image denoising method, tailored to specific classes of images, assuming that a dataset of clean images of the same class is available. Similarly to the non-local means (NLM) algorithm, the proposed method…

Computer Vision and Pattern Recognition · Computer Science 2017-06-22 Milad Niknejad , Jose M. Bioucas-Dias , Mario A. T. Figueiredo

Contrastive representation learning has gained much attention due to its superior performance in learning representations from both image and sequential data. However, the learned representations could potentially lead to performance…

Computation and Language · Computer Science 2022-11-01 Jianfeng Chi , William Shand , Yaodong Yu , Kai-Wei Chang , Han Zhao , Yuan Tian

Distribution shifts are problems where the distribution of data changes between training and testing, which can significantly degrade the performance of a model deployed in the real world. Recent studies suggest that one reason for the…

Machine Learning · Computer Science 2023-04-10 Takuro Kutsuna

Image forgery localization, which aims to segment tampered regions in an image, is a fundamental yet challenging digital forensic task. While some deep learning-based forensic methods have achieved impressive results, they directly learn…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Zijie Lou , Gang Cao , Kun Guo , Haochen Zhu , Lifang Yu

Given a grayscale photograph as input, this paper attacks the problem of hallucinating a plausible color version of the photograph. This problem is clearly underconstrained, so previous approaches have either relied on significant user…

Computer Vision and Pattern Recognition · Computer Science 2016-10-06 Richard Zhang , Phillip Isola , Alexei A. Efros

This article discuss the problem of color image content comparison. Particularly, methods of image content comparison are analyzed, restrictions of color histogram are described and a modified method of images content comparison is…

Computer Vision and Pattern Recognition · Computer Science 2018-04-05 Anas M. Al-Oraiqat , Natalya S. Kostyukova

We generalize the measurement using an expanded concept of cover, in order to provide a new approach to size of set other than cardinality. The generalized measurement has application backgrounds such as a generalized problem in dimension…

General Mathematics · Mathematics 2012-11-13 Hua-Rong Peng , Da-Hai Li , Qiong-Hua Wang

We consider the problem of producing fair probabilistic classifiers for multi-class classification tasks. We formulate this problem in terms of "projecting" a pre-trained (and potentially unfair) classifier onto the set of models that…

Machine Learning · Computer Science 2022-06-17 Wael Alghamdi , Hsiang Hsu , Haewon Jeong , Hao Wang , P. Winston Michalak , Shahab Asoodeh , Flavio P. Calmon

In image-to-image translation, each patch in the output should reflect the content of the corresponding patch in the input, independent of domain. We propose a straightforward method for doing so -- maximizing mutual information between the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-21 Taesung Park , Alexei A. Efros , Richard Zhang , Jun-Yan Zhu

Contrastive Learning has emerged as a powerful representation learning method and facilitates various downstream tasks especially when supervised data is limited. How to construct efficient contrastive samples through data augmentation is…

Computation and Language · Computer Science 2021-11-30 Yangkai Du , Tengfei Ma , Lingfei Wu , Fangli Xu , Xuhong Zhang , Bo Long , Shouling Ji

Image quality that is consistent with human opinion is assessed by a perceptual image quality assessment (IQA) that defines/utilizes a computational model. A good model should take effectiveness and efficiency into consideration, but most…

Computer Vision and Pattern Recognition · Computer Science 2018-10-17 Huizhen Jia , Lu Zhang , Tonghan Wang

There has been much discussion in the literature about rival measures of classical polarization in three dimensions. We gather and compare the various proposed measures of polarization, creating a geometric representation of the…

Optics · Physics 2014-06-26 Omar Gamel , Daniel F. V. James

To retrieve images based on their content is one of the most studied topics in the field of computer vision. Nowadays, this problem can be addressed using modern techniques such as feature extraction using machine learning, but over the…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Òscar Lorente , Ian Riera , Shauryadeep Chaudhuri , Oriol Catalan , Víctor Casales

Event cameras output asynchronous events to represent intensity changes with a high temporal resolution, even under extreme lighting conditions. Currently, most of the existing works use a single contrast threshold to estimate the intensity…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Ziwei Wang , Yonhon Ng , Pieter van Goor , Robert Mahony

Predicting human perceptual similarity is a challenging subject of ongoing research. The visual process underlying this aspect of human vision is thought to employ multiple different levels of visual analysis (shapes, objects, texture,…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Amir Rosenfeld , Richard Zemel , John K. Tsotsos

While internet-scale data often comes in pairs (e.g., audio/image, image/text), we often want to perform inferences over modalities unseen together in the training data (e.g., audio/text). Empirically, this can often be addressed by…

Machine Learning · Computer Science 2025-01-22 Yongwei Che , Benjamin Eysenbach