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Interferometric Synthetic Aperture Radar (InSAR) Imaging methods are usually based on algorithms of match-filtering type, without considering the scene's characteristic, which causes limited imaging quality. Besides, post-processing steps…

Signal Processing · Electrical Eng. & Systems 2022-10-07 Xu Zhan , Xiaoling Zhang , Shunjun Wei , Jun Shi

Polarimetric imaging enables advanced vision applications such as normal estimation and de-reflection by capturing unique surface-material interactions. However, existing applications (alternatively called downstream tasks) rely on datasets…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Yidong Luo , Chenggong Li , Yunfeng Song , Ping Wang , Boxin Shi , Junchao Zhang , Xin Yuan

POLSAR image has an advantage over optical image because it can be acquired independently of cloud cover and solar illumination. PolSAR image classification is a hot and valuable topic for the interpretation of POLSAR image. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2019-06-19 Xu Liu , Licheng Jiao , Dan Zhang , Fang Liu

Modern high dynamic range (HDR) imaging pipelines align and fuse multiple low dynamic range (LDR) images captured at different exposure times. While these methods work well in static scenes, dynamic scenes remain a challenge since the LDR…

Image and Video Processing · Electrical Eng. & Systems 2022-04-29 Nico Messikommer , Stamatios Georgoulis , Daniel Gehrig , Stepan Tulyakov , Julius Erbach , Alfredo Bochicchio , Yuanyou Li , Davide Scaramuzza

Compositing is one of the most common operations in photo editing. To generate realistic composites, the appearances of foreground and background need to be adjusted to make them compatible. Previous approaches to harmonize composites have…

Computer Vision and Pattern Recognition · Computer Science 2017-03-02 Yi-Hsuan Tsai , Xiaohui Shen , Zhe Lin , Kalyan Sunkavalli , Xin Lu , Ming-Hsuan Yang

Demonstrated for a digital image sensor based camera is a calibration target optimized method for finding the Camera Response Function (CRF). The proposed method uses localized known target zone pixel outputs spatial averaging and histogram…

Image and Video Processing · Electrical Eng. & Systems 2021-01-15 Nabeel A. Riza , Nazim Ashraf

X-ray polarization is a powerful tool for unveiling the anisotropic characteristics of high-energy celestial objects. We present a novel imaging reconstruction method designed for hard X-ray polarimeters employing a Si CMOS sensor and coded…

Instrumentation and Methods for Astrophysics · Physics 2024-07-09 Tsubasa Tamba , Hirokazu Odaka , Taihei Watanabe , Toshiya Iwata , Tomoaki Kasuga , Atsushi Tanimoto , Satoshi Takashima , Masahiro Ichihashi , Hiromasa Suzuki , Aya Bamba

We present a novel formulation to removing reflection from polarized images in the wild. We first identify the misalignment issues of existing reflection removal datasets where the collected reflection-free images are not perfectly aligned…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Chenyang Lei , Xuhua Huang , Mengdi Zhang , Qiong Yan , Wenxiu Sun , Qifeng Chen

High Dynamic Range (HDR) imaging aims to replicate the high visual quality and clarity of real-world scenes. Due to the high costs associated with HDR imaging, the literature offers various data-driven methods for HDR image reconstruction…

Image and Video Processing · Electrical Eng. & Systems 2024-02-13 Hrishav Bakul Barua , Ganesh Krishnasamy , KokSheik Wong , Abhinav Dhall , Kalin Stefanov

In this work, we propose a novel method for the detailed reconstruction of transparent objects by exploiting polarimetric cues. Most of the existing methods usually lack sufficient constraints and suffer from the over-smooth problem. Hence,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-26 Mingqi Shao , Chongkun Xia , Dongxu Duan , Xueqian Wang

Most consumer-grade digital cameras can only capture a limited range of luminance in real-world scenes due to sensor constraints. Besides, noise and quantization errors are often introduced in the imaging process. In order to obtain high…

Image and Video Processing · Electrical Eng. & Systems 2021-06-22 Xiangyu Chen , Yihao Liu , Zhengwen Zhang , Yu Qiao , Chao Dong

Multi-spectral imaging, which simultaneously captures the spatial and spectral information of a scene, is widely used across diverse fields, including remote sensing, biomedical imaging, and agricultural monitoring. Here, we introduce a…

Crucial information barely visible to the human eye is often embedded in a series of low-resolution images taken of the same scene. Super-resolution enables the extraction of this information by reconstructing a single image, at a high…

Computer Vision and Pattern Recognition · Computer Science 2011-12-08 S. S. Panda , M. S. R. S Prasad , G. Jena

Dual-panel displays require local dimming algorithms in order to reproduce content with high fidelity and high dynamic range. In this work, a novel deep learning based local dimming method is proposed for rendering HDR images on dual-panel…

Image and Video Processing · Electrical Eng. & Systems 2020-08-20 Lvyin Duan , Demetris Marnerides , Alan Chalmers , Zhichun Lei , Kurt Debattista

The stomatopod (mantis shrimp) visual system has recently provided a blueprint for the design of paradigm-shifting polarization and multispectral imaging sensors, enabling solutions to challenging medical and remote sensing problems.…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Germain Haessig , Damien Joubert , Justin Haque , Yingkai Chen , Moritz Milde , Tobi Delbruck , Viktor Gruev

Event cameras are novel bio-inspired sensors that measure per-pixel brightness differences asynchronously. Recovering brightness from events is appealing since the reconstructed images inherit the high dynamic range (HDR) and high-speed…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Zelin Zhang , Anthony Yezzi , Guillermo Gallego

Reconstructing ghosting-free high dynamic range (HDR) images of dynamic scenes from a set of multi-exposure images is a challenging task, especially with large object motion and occlusions, leading to visible artifacts using existing…

Computer Vision and Pattern Recognition · Computer Science 2022-07-07 Qian Ye , Masanori Suganuma , Jun Xiao , Takayuki Okatani

Image posterization is converting images with a large number of tones into synthetic images with distinct flat areas and a fewer number of tones. In this technical report, we present the implementation and results of using fuzzy logic in…

Computer Vision and Pattern Recognition · Computer Science 2018-02-06 Mahmoud Afifi

Polarisation imaging is used to distinguish objects and surface characteristics that are otherwise not visible with black-and-white or colour imaging. Full-Stokes polarisation imaging allows complex image processing like water glint…

Fourier ptychography is a recently explored imaging method for overcoming the diffraction limit of conventional cameras with applications in microscopy and yielding high-resolution images. In order to splice together low-resolution images…

Image and Video Processing · Electrical Eng. & Systems 2020-03-18 Yican Chen , Zhi Luo , Xia Wu , Huidong Yang , Bo Huang