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Lighting estimation from face images is an important task and has applications in many areas such as image editing, intrinsic image decomposition, and image forgery detection. We propose to train a deep Convolutional Neural Network (CNN) to…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Hao Zhou , Jin Sun , Yaser Yacoob , David W. Jacobs

Facial image super-resolution (SR) is an important preprocessing for facial image analysis, face recognition, and image-based 3D face reconstruction. Recent convolutional neural network (CNN) based method has shown excellent performance by…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Jung Un Yun , In Kyu Park

The representation of consistent mixed reality (XR) environments requires adequate real and virtual illumination composition in real-time. Estimating the lighting of a real scenario is still a challenge. Due to the ill-posed nature of the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Bruno Augusto Dorta Marques , Esteban Walter Gonzalez Clua , Anselmo Antunes Montenegro , Cristina Nader Vasconcelos

We describe a deep high-dynamic-range (HDR) image tone mapping operator that is computationally efficient and perceptually optimized. We first decompose an HDR image into a normalized Laplacian pyramid, and use two deep neural networks…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Chenyang Le , Jiebin Yan , Yuming Fang , Kede Ma

Recent studies show that deep learning (DL) based MRI reconstruction outperforms conventional methods, such as parallel imaging and compressed sensing (CS), in multiple applications. Unlike CS that is typically implemented with…

Image and Video Processing · Electrical Eng. & Systems 2022-08-22 Hongyi Gu , Burhaneddin Yaman , Steen Moeller , Il Yong Chun , Mehmet Akçakaya

Low dynamic range (LDR) cameras cannot deal with wide dynamic range inputs, frequently leading to local overexposure issues. We present a learning-based system to reduce these artifacts without resorting to complex acquisition mechanisms…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Yazhou Xing , Amrita Mazumdar , Anjul Patney , Chao Liu , Hongxu Yin , Qifeng Chen , Jan Kautz , Iuri Frosio

This report deals with translation invariance of convolutional neural networks (CNNs) for automatic target recognition (ATR) from synthetic aperture radar (SAR) imagery. In particular, the translation invariance of CNNs for SAR ATR…

Computer Vision and Pattern Recognition · Computer Science 2017-08-29 Hidetoshi Furukawa

We propose a novel hue-preserving tone mapping scheme. Various tone mapping operations have been studied so far, but there are very few works on color distortion caused in image tone mapping. First, LDR images produced from HDR ones by…

Image and Video Processing · Electrical Eng. & Systems 2020-01-08 Yuma Kinoshita , Kouki Seo , Artit Visavakitcharoen , Hitoshi Kiya

In this survey paper, we review recent uses of convolution neural networks (CNNs) to solve inverse problems in imaging. It has recently become feasible to train deep CNNs on large databases of images, and they have shown outstanding…

Image and Video Processing · Electrical Eng. & Systems 2018-09-11 Michael T. McCann , Kyong Hwan Jin , Michael Unser

High Dynamic Range (HDR) content is becoming ubiquitous due to the rapid development of capture technologies. Nevertheless, the dynamic range of common display devices is still limited, therefore tone mapping (TM) remains a key challenge…

Computer Vision and Pattern Recognition · Computer Science 2021-10-20 Chao Wang , Bin Chen , Hans-Peter Seidel , Karol Myszkowski , Ana Serrano

This letter proposes an improved CNN predictor (ICNNP) for reversible data hiding (RDH) in images, which consists of a feature extraction module, a pixel prediction module, and a complexity prediction module. Due to predicting the…

Multimedia · Computer Science 2023-01-05 Yingqiang Qiu , Wanli Peng , Xiaodan Lin , Huanqiang Zeng , Zhenxing Qian

Accurate depth estimation from images is a fundamental task in many applications including scene understanding and reconstruction. Existing solutions for depth estimation often produce blurry approximations of low resolution. This paper…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Ibraheem Alhashim , Peter Wonka

Light field imaging has recently known a regain of interest due to the availability of practical light field capturing systems that offer a wide range of applications in the field of computer vision. However, capturing high-resolution light…

Computer Vision and Pattern Recognition · Computer Science 2018-01-16 Reuben A. Farrugia , Christine Guillemot

Digital imaging aims to replicate realistic scenes, but Low Dynamic Range (LDR) cameras cannot represent the wide dynamic range of real scenes, resulting in under-/overexposed images. This paper presents a deep learning-based approach for…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Dwip Dalal , Gautam Vashishtha , Prajwal Singh , Shanmuganathan Raman

Deep learning methods using convolutional neural networks (CNN) have been successfully applied to virtually all imaging problems, and particularly in image reconstruction tasks with ill-posed and complicated imaging models. In an attempt to…

Image and Video Processing · Electrical Eng. & Systems 2020-07-30 Andreas Hauptmann , Jonas Adler

The vast majority of standard image and video content available online is represented in display-encoded color spaces, in which pixel values are conveniently scaled to a limited range (0-1) and the color distribution is approximately…

Image and Video Processing · Electrical Eng. & Systems 2025-04-22 Andrew Yanzhe Ke , Lei Luo , Xiaoyu Xiang , Yuchen Fan , Rakesh Ranjan , Alexandre Chapiro , Rafał K. Mantiuk

With the powerfulness of convolution neural networks (CNN), CNN based face reconstruction has recently shown promising performance in reconstructing detailed face shape from 2D face images. The success of CNN-based methods relies on a large…

Computer Vision and Pattern Recognition · Computer Science 2018-05-16 Yudong Guo , Juyong Zhang , Jianfei Cai , Boyi Jiang , Jianmin Zheng

In this paper, we propose a deep snapshot high dynamic range (HDR) imaging framework that can effectively reconstruct an HDR image from the RAW data captured using a multi-exposure color filter array (ME-CFA), which consists of a mosaic…

Computer Vision and Pattern Recognition · Computer Science 2020-11-23 Takeru Suda , Masayuki Tanaka , Yusuke Monno , Masatoshi Okutomi

While most images shared on the web and social media platforms are encoded in standard dynamic range (SDR), many displays now can accommodate high dynamic range (HDR) content. Additionally, modern cameras can capture images in an HDR format…

Image and Video Processing · Electrical Eng. & Systems 2025-03-18 Trevor D. Canham , SaiKiran Tedla , Michael J. Murdoch , Michael S. Brown

We present a method for learning discriminative filters using a shallow Convolutional Neural Network (CNN). We encode rotation invariance directly in the model by tying the weights of groups of filters to several rotated versions of the…

Computer Vision and Pattern Recognition · Computer Science 2017-05-03 Diego Marcos , Michele Volpi , Devis Tuia