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The achievable data rate in indoor wireless systems that employ visible light communication (VLC) can be limited by multipath propagation. Here, we use computer generated holograms (CGHs) in VLC system design to improve the achievable…

Signal Processing · Electrical Eng. & Systems 2018-12-18 Safwan Hafeedh Younus , Ahmed Taha Hussein , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani

Virtual reality (VR) headsets provide an immersive, stereoscopic visual experience, but at the cost of blocking users from directly observing their physical environment. Passthrough techniques are intended to address this limitation by…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Lei Xiao , Salah Nouri , Joel Hegland , Alberto Garcia Garcia , Douglas Lanman

State-of-the-art neural rendering methods optimize Gaussian scene representations from a few photographs for novel-view synthesis. Building on these representations, we develop an efficient algorithm, dubbed Gaussian Wave Splatting, to turn…

Graphics · Computer Science 2025-05-13 Suyeon Choi , Brian Chao , Jacqueline Yang , Manu Gopakumar , Gordon Wetzstein

By forming measurement matrices with the Kronecker product of two random matrices, image encryption in computational ghost imaging is investigated. The two-dimensional images are conveniently reconstructed with the pseudo-inverse matrices…

Image and Video Processing · Electrical Eng. & Systems 2024-06-03 Yi-Ning Zhao , Lin-Shan Chen , Lingxin Kong , Chong Wang , Cheng Ren , De-Zhong Cao

In support of applications involving multiview sources in distributed object recognition using lightweight cameras, we propose a new method for the distributed coding of sparse sources as visual descriptor histograms extracted from…

Computer Vision and Pattern Recognition · Computer Science 2016-07-19 Huynh Van Luong , Nikos Deligiannis , Søren Forchhammer , André Kaup

Image vectorization aims to convert raster images into editable, scalable vector representations while preserving visual fidelity. Existing vectorization methods struggle to represent complex real-world images, often producing fragmented…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Xingyue Lin , Shuai Peng , Xiangyu Xie , Jianhua Zhu , Yuxuan Zhou , Liangcai Gao

Image retrieval systems help users to browse and search among extensive images in real-time. With the rise of cloud computing, retrieval tasks are usually outsourced to cloud servers. However, the cloud scenario brings a daunting challenge…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Qihua Feng , Peiya Li , Zhixun Lu , Chaozhuo Li , Zefang Wang , Zhiquan Liu , Chunhui Duan , Feiran Huang

Scalable image coding for both humans and machines is a technique that has gained a lot of attention recently. This technology enables the hierarchical decoding of images for human vision and image recognition models. It is a highly…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Takahiro Shindo , Yui Tatsumi , Taiju Watanabe , Hiroshi Watanabe

In this paper, we propose a novel generative model-based attack on learnable image encryption methods proposed for privacy-preserving deep learning. Various learnable encryption methods have been studied to protect the sensitive visual…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 AprilPyone MaungMaung , Hitoshi Kiya

We present InvVis, a new approach for invertible visualization, which is reconstructing or further modifying a visualization from an image. InvVis allows the embedding of a significant amount of data, such as chart data, chart information,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Huayuan Ye , Chenhui Li , Yang Li , Changbo Wang

Recently, deep learning-based computer-generated holography (CGH) has demonstrated tremendous potential in three-dimensional (3D) displays and yielded impressive display quality. However, most existing deep learning-based CGH techniques can…

Image and Video Processing · Electrical Eng. & Systems 2024-04-18 Zhenxing Dong , Jidong Jia , Yan Li , Yuye Ling

Holographic techniques significantly extend the capabilities of laser tweezing, making possible extended trapping patterns for manipulating large numbers of particles and volumes of soft matter. We describe practical methods for creating…

Soft Condensed Matter · Physics 2009-10-31 Eric R. Dufresne , Gabriel C. Spalding , Matthew T. Dearing , Steven A. Sheets , David G. Grier

The past decades have witnessed the rapid development of image and video coding techniques in the era of big data. However, the signal fidelity-driven coding pipeline design limits the capability of the existing image/video coding…

Computer Vision and Pattern Recognition · Computer Science 2020-01-13 Yueyu Hu , Shuai Yang , Wenhan Yang , Ling-Yu Duan , Jiaying Liu

We propose a monospectral image encryption method in which the multispectral color image acquisition by using heterogeneous monospectral cameras. Because the captured monospectral elemental images (EIs) belongs to grayscale image, it is…

Cryptography and Security · Computer Science 2018-10-17 Xiaowei Li , Ying Wang , Qiong-Hua Wang , Yang Liu , Xin Zhou

Video Watermarking serves as a new technology mainly used to provide security to the illegal distribution of digital video over the web. The purpose of any video watermarking scheme is to embed extra information into video in such a way…

Multimedia · Computer Science 2014-04-30 T. Srinivasa Rao , Rajasekhar R. Kurra

Mobile robots operating indoors must be prepared to navigate challenging scenes that contain transparent surfaces. This paper proposes a novel method for the fusion of acoustic and visual sensing modalities through implicit neural…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Advaith V. Sethuraman , Onur Bagoren , Harikrishnan Seetharaman , Dalton Richardson , Joseph Taylor , Katherine A. Skinner

Computer-generated holograms (CGHs) are used in holographic three-dimensional (3D) displays and holographic projections. The quality of the reconstructed images using phase-only CGHs is degraded because the amplitude of the reconstructed…

Computer Vision and Pattern Recognition · Computer Science 2022-02-02 Yoshiyuki Ishii , Tomoyoshi Shimobaba , David Blinder , Tobias Birnbaum , Peter Schelkens , Takashi Kakue , Tomoyoshi Ito

We propose a fully automatic system to reconstruct and visualize 3D blood vessels in Augmented Reality (AR) system from stereo X-ray images with bones and body fat. Currently, typical 3D imaging technologies are expensive and carrying the…

Computer Vision and Pattern Recognition · Computer Science 2017-09-25 Qiuyu Chen , Ryoma Bise , Lin Gu , Yinqiang Zheng , Imari Sato , Jenq-Neng Hwang , Nobuaki Imanishi , Sadakazu Aiso

We present a procedure to reconstruct objects from holograms recorded in in-line holography settings. Working with one beam of polarized light, the topological derivatives and energies of functionals quantifying hologram deviations yield…

Optics · Physics 2018-04-09 A. Carpio , T. G. Dimiduk , V. Selgas , P. Vidal

Methods of three-dimensional deconvolution with a point-spread function as frequently employed in optical microscopy to reconstruct true three-dimensional distribution of objects are extended to holographic reconstructions. Two such schemes…

Optics · Physics 2017-08-09 Tatiana Latychevskaia , Fabian Gehri , Hans-Werner Fink