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Unsupervised neural machine translation (NMT) is a recently proposed approach for machine translation which aims to train the model without using any labeled data. The models proposed for unsupervised NMT often use only one shared encoder…

计算与语言 · 计算机科学 2018-04-25 Zhen Yang , Wei Chen , Feng Wang , Bo Xu

The objectives of this chapter are: (i) to introduce a concise overview of regularization; (ii) to define and to explain the role of a particular type of regularization called total variation norm (TV-norm) in computer vision tasks; (iii)…

计算机视觉与模式识别 · 计算机科学 2016-04-01 Vania V. Estrela , Hermes Aguiar Magalhaes , Osamu Saotome

In this work, we present a wireless localization method that operates on self-supervised and unlabeled channel estimates. Our self-supervising method learns general-purpose channel features robust to fading and system impairments. Learned…

信号处理 · 电气工程与系统科学 2023-02-15 Artan Salihu , Stefan Schwarz , Markus Rupp

Recently, a fast alternating minimization algorithm for total variation image deblurring (FTVd) has been presented by Wang, Yang, Yin, and Zhang [{\em SIAM J. Imaging Sci.}, 1 (2008), pp. 248--272]. The method in a nutshell consists of a…

泛函分析 · 数学 2013-09-02 Zheng-Jian Bai , Daniele Cassani , Marco Donatelli , Stefano Serra-Capizzano

In this paper, we present a novel transformer-based architecture for end-to-end image compression. Our architecture incorporates blocks that effectively capture local dependencies between tokens, eliminating the need for positional encoding…

图像与视频处理 · 电气工程与系统科学 2024-09-09 Bouzid Arezki , Fangchen Feng , Anissa Mokraoui

Few-shot image classification is a challenging task in the field of machine learning, involving the identification of new categories using a limited number of labeled samples. In recent years, methods based on local descriptors have made…

计算机视觉与模式识别 · 计算机科学 2024-08-29 Bingchen Yan

Blind image deblurring, i.e., deblurring without knowledge of the blur kernel, is a highly ill-posed problem. The problem can be solved in two parts: i) estimate a blur kernel from the blurry image, and ii) given estimated blur kernel,…

计算机视觉与模式识别 · 计算机科学 2017-12-27 Yuanchao Bai , Gene Cheung , Xianming Liu , Wen Gao

The total variation-based image denoising model has been generalized and extended in numerous ways, improving its performance in different contexts. We propose a new penalty function motivated by the recent progress in the statistical…

计算机视觉与模式识别 · 计算机科学 2011-07-28 Aditya Chopra , Heng Lian

Convolutional neural networks (CNNs) have gained increasing popularity and versatility in recent decades, finding applications in diverse domains. These remarkable achievements are greatly attributed to the support of extensive datasets…

计算机视觉与模式识别 · 计算机科学 2024-07-26 Xin Zhang , Yuqi Song , Wyatt McCurdy , Xiaofeng Wang , Fei Zuo

We review a class of methods that can be collected under the name nonlinear transform coding (NTC), which over the past few years have become competitive with the best linear transform codecs for images, and have superseded them in terms of…

In this paper we introduce a novel method for general semantic segmentation that can benefit from general semantics of Convolutional Neural Network (CNN). Our segmentation proposes visually and semantically coherent image segments. We use…

计算机视觉与模式识别 · 计算机科学 2016-09-30 Mahdyar Ravanbakhsh , Hossein Mousavi , Moin Nabi , Mohammad Rastegari , Carlo Regazzoni

We consider the image denoising problem using total variation (TV) regularization. This problem can be computationally challenging to solve due to the non-differentiability and non-linearity of the regularization term. We propose an…

最优化与控制 · 数学 2014-08-26 Zhiwei Qin , Donald Goldfarb , Shiqian Ma

Multi-modal approaches employ data from multiple input streams such as textual and visual domains. Deep neural networks have been successfully employed for these approaches. In this paper, we present a novel multi-modal approach that fuses…

计算机视觉与模式识别 · 计算机科学 2018-10-05 Ignazio Gallo , Alessandro Calefati , Shah Nawaz , Muhammad Kamran Janjua

We introduce the Differentiable Weightless Neural Network (DWN), a model based on interconnected lookup tables. Training of DWNs is enabled by a novel Extended Finite Difference technique for approximate differentiation of binary values. We…

Video captioning is a popular task that challenges models to describe events in videos using natural language. In this work, we investigate the ability of various visual feature representations derived from state-of-the-art convolutional…

计算机视觉与模式识别 · 计算机科学 2021-01-18 Praveen S , Akhilesh Bharadwaj , Harsh Raj , Janhavi Dadhania , Ganesh Samarth C. A , Nikhil Pareek , S R M Prasanna

In this paper, we propose a novel white balance adjustment, called "spatially varying white balancing," for single, mixed, and non-uniform illuminants. By using n diagonal matrices along with a weight, the proposed method can reduce…

计算机视觉与模式识别 · 计算机科学 2021-09-06 Teruaki Akazawa , Yuma Kinoshita , Hitoshi Kiya

Audio-Visual Video Parsing (AVVP) entails the challenging task of localizing both uni-modal events (i.e., those occurring exclusively in either the visual or acoustic modality of a video) and multi-modal events (i.e., those occurring in…

计算机视觉与模式识别 · 计算机科学 2025-05-15 Yung-Hsuan Lai , Janek Ebbers , Yu-Chiang Frank Wang , François Germain , Michael Jeffrey Jones , Moitreya Chatterjee

Current image-to-image translation methods formulate the task with conditional generation models, leading to learning only the recolorization or regional changes as being constrained by the rich structural information provided by the…

计算机视觉与模式识别 · 计算机科学 2022-07-28 Yu-Jie Chen , Shin-I Cheng , Wei-Chen Chiu , Hung-Yu Tseng , Hsin-Ying Lee

This paper introduces an unsupervised technique to detect the changed region of multitemporal images on a same reference plane with the help of rough clustering. The proposed technique is a soft-computing approach, based on the concept of…

计算机视觉与模式识别 · 计算机科学 2014-04-25 Chandranath Adak

We propose a randomized version of the non-local means (NLM) algorithm for large-scale image filtering. The new algorithm, called Monte Carlo non-local means (MCNLM), speeds up the classical NLM by computing a small subset of image patch…

计算机视觉与模式识别 · 计算机科学 2015-06-18 Stanley H. Chan , Todd Zickler , Yue M. Lu