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We introduce a new neural signal model designed for efficient high-resolution representation of large-scale signals. The key innovation in our multiscale implicit neural representation (MINER) is an internal representation via a Laplacian…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Vishwanath Saragadam , Jasper Tan , Guha Balakrishnan , Richard G. Baraniuk , Ashok Veeraraghavan

Tone-mapping plays an essential role in high dynamic range (HDR) imaging. It aims to preserve visual information of HDR images in a medium with a limited dynamic range. Although many works have been proposed to provide tone-mapped results…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Chien-Chuan Su , Ren Wang , Hung-Jin Lin , Yu-Lun Liu , Chia-Ping Chen , Yu-Lin Chang , Soo-Chang Pei

Although digital cameras can acquire high-dynamic range (HDR) images, the captured HDR information are mostly quantized to low-dynamic range (LDR) images for display compatibility and compact storage. In this paper, we propose an invertible…

Image and Video Processing · Electrical Eng. & Systems 2021-10-12 Zhuming Zhang , Menghan Xia , Xueting Liu , Chengze Li , Tien-Tsin Wong

Existing image-to-image translation (I2IT) methods are either constrained to low-resolution images or long inference time due to their heavy computational burden on the convolution of high-resolution feature maps. In this paper, we focus on…

Computer Vision and Pattern Recognition · Computer Science 2021-05-20 Jie Liang , Hui Zeng , Lei Zhang

Acquisition of high dynamic range (HDR) images is thriving due to the increasing use of smart devices and the demand for high-quality output. Extensive research has focused on developing methods for reducing the luminance range in HDR…

Image and Video Processing · Electrical Eng. & Systems 2024-09-25 Xenios Milidonis , Francesco Banterle , Alessandro Artusi

High dynamic range (HDR) imaging is still a challenging task in modern digital photography. Recent research proposes solutions that provide high-quality acquisition but at the cost of a very large number of operations and a slow inference…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Steven Tel , Barthélémy Heyrman , Dominique Ginhac

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

High Dynamic Range (HDR) images are the ones that contain a greater range of luminosity as compared to the standard images. HDR images have a higher detail and clarity of structure, objects, and color, which the standard images lack. HDR…

Image and Video Processing · Electrical Eng. & Systems 2021-09-21 Inaam Ul Hassan , Abdul Haseeb , Sarwan Ali

Deep learning-based methods have recently demonstrated promising results in deformable image registration for a wide range of medical image analysis tasks. However, existing deep learning-based methods are usually limited to small…

Image and Video Processing · Electrical Eng. & Systems 2020-07-01 Tony C. W. Mok , Albert C. S. Chung

An image processing unit (IPU), or image signal processor (ISP) for high dynamic range (HDR) imaging usually consists of demosaicing, white balancing, lens shading correction, color correction, denoising, and tone-mapping. Besides noise…

Image and Video Processing · Electrical Eng. & Systems 2023-03-27 Litao Hu , Huaijin Chen , Jan P. Allebach

Problems in differentiable rendering often involve optimizing scene parameters that cause motion in image space. The gradients for such parameters tend to be sparse, leading to poor convergence. While existing methods address this sparsity…

Graphics · Computer Science 2025-03-31 Ishit Mehta , Manmohan Chandraker , Ravi Ramamoorthi

Mapping a single exposure low dynamic range (LDR) image into a high dynamic range (HDR) is considered among the most strenuous image to image translation tasks due to exposure-related missing information. This study tackles the challenges…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 SMA Sharif , Rizwan Ali Naqvi , Mithun Biswas , Kim Sungjun

High dynamic range (HDR) imaging has recently drawn much attention in multimedia community. In this paper, we proposed a HDR image forensics method based on convolutional neural network (CNN).To our best knowledge, this is the first time to…

Computer Vision and Pattern Recognition · Computer Science 2019-03-01 Yongqing Huo , Xiaofeng Zhu

High Dynamic Range (HDR) images are generated using multiple exposures of a scene. When a hand-held camera is used to capture a static scene, these images need to be aligned by globally shifting each image in both dimensions. For a fast and…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Kadir Cenk Alpay , Kadir Berkay Aydemir , Alptekin Temizel

In this paper, we develop the Laplacian pyramid-like autoencoder (LPAE) by adding the Laplacian pyramid (LP) concept widely used to analyze images in Signal Processing. LPAE decomposes an image into the approximation image and the detail…

Computer Vision and Pattern Recognition · Computer Science 2022-08-29 Sangjun Han , Taeil Hur , Youngmi Hur

In the last few years, the fusion of multi-modal data has been widely studied for various applications such as robotics, gesture recognition, and autonomous navigation. Indeed, high-quality visual sensors are expensive, and consumer-grade…

Image and Video Processing · Electrical Eng. & Systems 2024-11-13 Aditya Kasliwal , Ishaan Gakhar , Aryan Kamani , Pratinav Seth , Ujjwal Verma

One of the key challenges in tone mapping is to preserve the perceptual quality of high dynamic range (HDR) images when mapping them to standard dynamic range (SDR) displays. Traditional tone mapping operators (TMOs) compress the luminance…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Imran Mehmood , Xinye Shi , M. Usman Khan , Ming Ronnier Luo

Wide dynamic range (WDR) image tone mapping is in high demand in many applications like film production, security monitoring, and photography. It is especially crucial for mobile devices because most of the images taken today are from…

Image and Video Processing · Electrical Eng. & Systems 2021-02-03 Jie Yang , Mengchen Lin , Ziyi Liu , Ulian Shahnovich , Orly Yadid-Pecht

The rising demand for high quality display has ensued active research in high dynamic range (HDR) imaging, which has the potential to replace the standard dynamic range imaging. This is due to HDR's features like accurate reproducibility of…

Image and Video Processing · Electrical Eng. & Systems 2021-02-22 Yafei Ou , Prasoon Ambalathankandy , Masayuki Ikebe , Shinya Takamaeda , Masato Motomura , Tetsuya Asai

We present High Dynamic Range Neural Radiance Fields (HDR-NeRF) to recover an HDR radiance field from a set of low dynamic range (LDR) views with different exposures. Using the HDR-NeRF, we are able to generate both novel HDR views and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Xin Huang , Qi Zhang , Ying Feng , Hongdong Li , Xuan Wang , Qing Wang