Results 21 to 30 of about 179 (123)
Audio and Video Matching Zero‐Watermarking Algorithm Based on NSCT
Complexity, Volume 2022, Issue 1, 2022., 2022 In the Internet age, information security is threatened anytime and anywhere and the copyright protection of audio and video as well as the need for matching detection is increasingly strong. In view of this need, this paper proposes a zero‐watermarking algorithm for audio and video matching based on NSCT.
Di Fan +5 more
wiley +1 more source
Efficient Shot Boundary Detection with Multiple Visual Representations
Mobile Information Systems, Volume 2022, Issue 1, 2022., 2022 Due to the unlimited growth of video‐capturing devices and media, searching and finding a particular video in this huge database becomes a laborious as well as expensive task. Information‐rich shots are the inevitable factor of the content‐based video processing (CBVP) system.
Jasmin T. Jose +6 more
wiley +1 more source
An NSCT Image Denoising Method Based on Genetic Algorithm to Optimize the Threshold
Mobile Information Systems, Volume 2022, Issue 1, 2022., 2022 In order to solve the defect that the threshold value of the NSCT transform method is too large or the real signal coefficients are directly lost during image denoising, an adaptive threshold method of genetic algorithm is used to optimize the NSCT image denoising method. The genetic algorithm is used to generate the initial population, and the genetic
Zeliang Zhang +7 more
wiley +1 more source
Multimodal Medical Image Fusion Based on Multiple Latent Low‐Rank Representation
Computational and Mathematical Methods in Medicine, Volume 2021, Issue 1, 2021., 2021 A multimodal medical image fusion algorithm based on multiple latent low‐rank representation is proposed to improve imaging quality by solving fuzzy details and enhancing the display of lesions. Firstly, the proposed method decomposes the source image repeatedly using latent low‐rank representation to obtain several saliency parts and one low‐rank part.
Xi-Cheng Lou, Xin Feng, Martti Juhola
wiley +1 more source
Nonsubsampled Contourlet Transform And Adaptive PCNN For Medical Image Fusion
Journal of Applied Science and Engineering, 2022 In order to improve the quality of medical image fusion, preserve the spectral characteristics of the original image and avoid spectral degradation of the fused image, we propose a new medical image fusion method based on the nonsubsampled contourlet ...
Qian Mei, Mengfan Li
doaj +1 more source
Scientific Programming, Volume 2021, Issue 1, 2021., 2021 Image fusion is to effectively enhance the accuracy, stability, and comprehensiveness of information. Generally, infrared images lack enough background details to provide an accurate description of the target scene, while visible images are difficult to detect radiation under adverse conditions, such as low light.
Zongping Li +5 more
wiley +1 more source
The NSCT-HMT Model of Remote Sensing Image Based on Gaussian-Cauchy Mixture Distribution
IEEE Access, 2018 The nonsubsampled Contourlet transform (NSCT) not only retains the characteristics of Contourlet transform, but also has the good characteristic of shift-invariance, which plays a significant role in denoising, fusion, and segmentation of texture-rich ...
Xianghai Wang +3 more
doaj +1 more source
A NOVEL FUSION-BASED UNSUPERVISED APPROACH FOR MULTISPECTRAL IMAGE CHANGE DETECTION WITH SALIENCY MAPS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 To fully utilize the spectral information and remove noise in multispectral image change detection, A fusion-based unsupervised approach, which exploits NSCT (Nonsubsampled Contourlet Transform) and multi-scale saliency maps for detecting changed areas ...
A. Zhang +4 more
doaj +1 more source
Lightweight Biomedical Image Encryption Approach
IEEE Access, 2023 This paper proposes a lightweight image encryption approach for medical Internet of Things (MIoT) networks using compressive sensing and a modified seven-dimensional (MSD) hyperchaotic map.
Manjit Kaur +4 more
doaj +1 more source
Optimization of the Oil Drilling Monitoring System Based on the Multisensor Image Fusion Algorithm
Journal of Sensors, Volume 2021, Issue 1, 2021., 2021 The working environment of the oil drilling platform is harsh, with many uncertain factors and high operating risks. During the drilling process, due to sudden formation factors or improper process operations, it is extremely easy to cause well wall instability, sticking, lost circulation, well kick, and blowout.
Dong Wang +5 more
wiley +1 more source