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Panoramic imaging research on geometry recovery and High Dynamic Range (HDR) reconstruction becomes a trend with the development of Extended Reality (XR). Neural Radiance Fields (NeRF) provide a promising scene representation for both tasks…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Zhan Lu , Qian Zheng , Boxin Shi , Xudong Jiang

We demonstrate generating HDR images using the concerted action of multiple black-box, pre-trained LDR image diffusion models. Relying on a pre-trained LDR generative diffusion models is vital as, first, there is no sufficiently large HDR…

Graphics · Computer Science 2025-03-19 Mojtaba Bemana , Thomas Leimkühler , Karol Myszkowski , Hans-Peter Seidel , Tobias Ritschel

High Dynamic Range (HDR) content (i.e., images and videos) has a broad range of applications. However, capturing HDR content from real-world scenes is expensive and time-consuming. Therefore, the challenging task of reconstructing visually…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Hrishav Bakul Barua , Kalin Stefanov , KokSheik Wong , Abhinav Dhall , Ganesh Krishnasamy

High Dynamic Range (HDR) imaging is gaining increased attention due to its realistic content, for not only regular displays but also smartphones. Before sufficient HDR content is distributed, HDR visualization still relies mostly on…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Subhayan Mukherjee , Guan-Ming Su , Irene Cheng

We present a learning-based method to infer plausible high dynamic range (HDR), omnidirectional illumination given an unconstrained, low dynamic range (LDR) image from a mobile phone camera with a limited field of view (FOV). For training…

Computer Vision and Pattern Recognition · Computer Science 2019-04-03 Chloe LeGendre , Wan-Chun Ma , Graham Fyffe , John Flynn , Laurent Charbonnel , Jay Busch , Paul Debevec

High Dynamic Range (HDR) content creation has become an important topic for modern media and entertainment sectors, gaming and Augmented/Virtual Reality industries. Many methods have been proposed to recreate the HDR counterparts of input…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Hrishav Bakul Barua , Ganesh Krishnasamy , KokSheik Wong , Kalin Stefanov , Abhinav Dhall

Intrinsic decomposition from a single image is a highly challenging task, due to its inherent ambiguity and the scarcity of training data. In contrast to traditional fully supervised learning approaches, in this paper we propose learning…

Computer Vision and Pattern Recognition · Computer Science 2018-02-07 Michael Janner , Jiajun Wu , Tejas D. Kulkarni , Ilker Yildirim , Joshua B. Tenenbaum

Digital in-line holography is commonly used to reconstruct 3D images from 2D holograms for microscopic objects. One of the technical challenges that arise in the signal processing stage is removing the twin image that is caused by the…

Image and Video Processing · Electrical Eng. & Systems 2023-04-21 Huayu Li , Xiwen Chen , Haiyu Wu , Zaoyi Chi , Christopher Mann , Abolfazl Razi

Single-image high dynamic range (SI-HDR) reconstruction has recently emerged as a problem well-suited for deep learning methods. Each successive technique demonstrates an improvement over existing methods by reporting higher image quality…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Gabriel Eilertsen , Saghi Hajisharif , Param Hanji , Apostolia Tsirikoglou , Rafal K. Mantiuk , Jonas Unger

Deep convolutional networks have attracted great attention in image restoration and enhancement. Generally, restoration quality has been improved by building more and more convolutional block. However, these methods mostly learn a specific…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Yukai Shi , Jinghui Qin

Single-image HDR reconstruction aims to recover high dynamic range radiance from a single low dynamic range (LDR) input, but remains highly ill-posed due to detail saturation in over-exposed regions and noise amplification in under-exposed…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Aoyu Liu , Zhen Liu , Ziyi Wang , Dian Chen , Bing Zeng , Shuaicheng Liu

Hand-held light field (LF) cameras often exhibit low spatial resolution due to the inherent trade-off between spatial and angular dimensions. Existing supervised learning-based LF spatial super-resolution (SR) methods, which rely on…

Image and Video Processing · Electrical Eng. & Systems 2025-12-09 Jianxin Lei , Dongze Wu , Chengcai Xu , Hongcheng Gu , Guangquan Zhou , Junhui Hou , Ping Zhou

Recovering ghost-free High Dynamic Range (HDR) images from multiple Low Dynamic Range (LDR) images becomes challenging when the LDR images exhibit saturation and significant motion. Recent Diffusion Models (DMs) have been introduced in HDR…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Tao Hu , Qingsen Yan , Yuankai Qi , Yanning Zhang

The task of single image super-resolution (SISR) aims at reconstructing a high-resolution (HR) image from a low-resolution (LR) image. Although significant progress has been made by deep learning models, they are trained on synthetic paired…

Image and Video Processing · Electrical Eng. & Systems 2019-10-15 Zhen Han , Enyan Dai , Xu Jia , Xiaoying Ren , Shuaijun Chen , Chunjing Xu , Jianzhuang Liu , Qi Tian

High dynamic range (HDR) imaging is one of the biggest achievements in modern photography. Traditional solutions to HDR imaging are designed for and applied to CMOS image sensors (CIS). However, the mainstream one-micron CIS cameras today…

Image and Video Processing · Electrical Eng. & Systems 2020-12-04 Abhiram Gnanasambandam , Stanley H. Chan

High dynamic range (HDR) imaging aims to obtain a high-quality HDR image by fusing information from multiple low dynamic range (LDR) images. Numerous learning-based HDR imaging methods have been proposed to achieve this for static and…

Image and Video Processing · Electrical Eng. & Systems 2025-05-30 Yu Yuan , Yiheng Chi , Xingguang Zhang , Stanley Chan

Intrinsic image decomposition is the process of separating the reflectance and shading layers of an image, which is a challenging and underdetermined problem. In this paper, we propose to systematically address this problem using a deep…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Sai Bi , Nima Khademi Kalantari , Ravi Ramamoorthi

The modern supervised approaches for human image relighting rely on training data generated from 3D human models. However, such datasets are often small (e.g., Light Stage data with a small number of individuals) or limited to diffuse…

Graphics · Computer Science 2021-10-18 Daichi Tajima , Yoshihiro Kanamori , Yuki Endo

Most image deblurring methods assume an over-simplistic image formation model and as a result are sensitive to more realistic image degradations. We propose a novel variational framework, that explicitly handles pixel saturation, noise,…

Computer Vision and Pattern Recognition · Computer Science 2018-06-05 Jérémy Anger , Mauricio Delbracio , Gabriele Facciolo

In this paper, a novel image enhancement network is proposed, where HDR images are used for generating training data for our network. Most of conventional image enhancement methods, including Retinex based methods, do not take into account…

Computer Vision and Pattern Recognition · Computer Science 2019-01-28 Yuma Kinoshita , Hitoshi Kiya