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Noise is an important factor which when get added to an image reduces its quality and appearance. So in order to enhance the image qualities, it has to be removed with preserving the textural information and structural features of image.…

计算机视觉与模式识别 · 计算机科学 2019-01-23 Vivek Kumar , Atul Samadhiya

Existing methods for enhancing dark images captured in a very low-light environment assume that the intensity level of the optimal output image is known and already included in the training set. However, this assumption often does not hold,…

图像与视频处理 · 电气工程与系统科学 2023-04-05 Evgeny Hershkovitch Neiterman , Michael Klyuchka , Gil Ben-Artzi

Recently it has shown that the policy-gradient methods for reinforcement learning have been utilized to train deep end-to-end systems on natural language processing tasks. What's more, with the complexity of understanding image content and…

计算机视觉与模式识别 · 计算机科学 2018-09-14 Haichao Shi , Peng Li , Bo Wang , Zhenyu Wang

We introduce SynthLight, a diffusion model for portrait relighting. Our approach frames image relighting as a re-rendering problem, where pixels are transformed in response to changes in environmental lighting conditions. Using a…

计算机视觉与模式识别 · 计算机科学 2025-01-17 Sumit Chaturvedi , Mengwei Ren , Yannick Hold-Geoffroy , Jingyuan Liu , Julie Dorsey , Zhixin Shu

Diffusion models have emerged as powerful tools for high-quality image generation and editing, but guiding these models to produce specific outputs remains a challenge. Conventional approaches rely on conditioning mechanisms, such as text…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Nithesh Chandher Karthikeyan , Jonas Unger , Gabriel Eilertsen

The presence of interharmonics in power systems can lead to asynchronous sampling, a phenomenon further aggravated by shifts in the fundamental frequency, which significantly degrades the accuracy of power measurements. Under such…

信号处理 · 电气工程与系统科学 2026-01-30 Jian Liu , Wei Zhao , Jianting Zhao , Shisong Li

Deep learning technology has been widely applied to speech enhancement. While testing the effectiveness of various network structures, researchers are also exploring the improvement of the loss function used in network training. Although…

音频与语音处理 · 电气工程与系统科学 2023-04-25 Tianrui Wang , Weibin Zhu

Image retrieval refers to finding relevant images from an image database for a query, which is considered difficult for the gap between low-level representation of images and high-level representation of queries. Recently further developed…

计算机视觉与模式识别 · 计算机科学 2013-12-24 Yalong Bai , Kuiyuan Yang , Wei Yu , Wei-Ying Ma , Tiejun Zhao

The derivation of a function is a fundamental tool for solving problems in calculus. Consequently, the motivations for investigating physical systems capable of performing this task are numerous. Furthermore, the potential to develop an…

Image enhancement is a method of improving the quality of an image and contrast is a major aspect. Traditional methods of contrast enhancement like histogram equalization results in over/under enhancement of the image especially a lower…

计算机视觉与模式识别 · 计算机科学 2018-09-13 Sandeep Joshi , Samrudh Kumar

In this work we propose a photorealistic style transfer method for image and video that is based on vision science principles and on a recent mathematical formulation for the deterministic decoupling of sample statistics. The novel aspects…

图像与视频处理 · 电气工程与系统科学 2023-04-11 Trevor D. Canham , Adrián Martín , Marcelo Bertalmío , Javier Portilla

Matching two texts is a fundamental problem in many natural language processing tasks. An effective way is to extract meaningful matching patterns from words, phrases, and sentences to produce the matching score. Inspired by the success of…

计算与语言 · 计算机科学 2016-02-23 Liang Pang , Yanyan Lan , Jiafeng Guo , Jun Xu , Shengxian Wan , Xueqi Cheng

The usage of digital content (photos and videos) in a variety of applications has increased due to the popularity of multimedia devices. These uses include advertising campaigns, educational resources, and social networking platforms. There…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Muhammad Turab

Blended light is an important source of degeneracy in the characterization of microlensing events, particularly in binary-lens and high magnification events. We show how the techniques of image subtraction can be applied to form an image of…

天体物理学 · 物理学 2007-05-23 Andrew Gould , Jin H. An

This paper aims to recover the intrinsic reflectance layer and shading layer given a single image. Though this intrinsic image decomposition problem has been studied for decades, it remains a significant challenge in cases of complex…

计算机视觉与模式识别 · 计算机科学 2025-09-12 Xiaodong Wang , Zijun He , Xin Yuan

Image captioning models are usually evaluated on their ability to describe a held-out set of images, not on their ability to generalize to unseen concepts. We study the problem of compositional generalization, which measures how well a…

机器学习 · 计算机科学 2019-11-12 Mitja Nikolaus , Mostafa Abdou , Matthew Lamm , Rahul Aralikatte , Desmond Elliott

Internal features from large-scale pre-trained diffusion models have recently been established as powerful semantic descriptors for a wide range of downstream tasks. Works that use these features generally need to add noise to images before…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Nick Stracke , Stefan Andreas Baumann , Kolja Bauer , Frank Fundel , Björn Ommer

This article addresses the image denoising problem in the situations of strong noise. We propose a dual sparse decomposition method. This method makes a sub-dictionary decomposition on the over-complete dictionary in the sparse…

计算机视觉与模式识别 · 计算机科学 2017-04-25 Hong Sun , Chen-guang Liu , Cheng-wei Sang

In this paper, we propose a novel, effective and fast method to obtain a color illumination invariant and shadow-free image from a single outdoor image. Different from state-of-the-art methods for shadow-free image that either need shadow…

计算机视觉与模式识别 · 计算机科学 2015-01-30 Liangqiong Qu , Jiandong Tian , Zhi Han , Yandong Tang

In this paper we propose a new algebraical model for the gray level images. It can be used for digital image processing. The model adresses to those images which are generated in improper light conditions (very low or high level). The…

计算机视觉与模式识别 · 计算机科学 2014-12-18 Vasile Patrascu
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