Results 61 to 70 of about 696,668 (189)
LSB TECHNIQUE FOR IMAGE AND TEXT HIDING USING THE RED AND GREEN CHANNELS [PDF]
Journal of Engineering Science and Technology, 2018 Recently, Information hiding has an important role to protect data via the Internet from malicious attack, Steganography - which is the art of hiding data- uses a cover file to hide data by utilizing different schemas to prevent it from being detected ...
SAWSAN M. NUSIR +4 more
doaj
Zeros Removal with DCT Image Compression Technique
Journal of Kufa for Mathematics and Computer, 2011 The discrete cosine transform (DCT) is a method for converting a signal into plain frequency components. It is extensively used in image compression. In this paper a new technique is proposed, namely ZRDCT (Zeros Removal with DCT) which is based on a ...
Nushwan Yousif Baithoon
doaj +1 more source
A Fully Integrated 24-GHz Eight-Element Phased-Array Receiver in Silicon [PDF]
, 2004 This paper reports the first fully integrated 24-GHz eight-element phased-array receiver in a SiGe BiCMOS technology. The receiver utilizes a heterodyne topology and the signal combining is performed at an IF of 4.8 GHz. The phase-shifting with 4 bits of
Guan, Xiang +2 more
core
Journal of Electrical Engineering and Computer SciencesX-ray imaging is a widely used technique for observing lung patients conditions. Compared to other radiographic methods, X-ray is more accessible, cost-effective, and commonly available in healthcare facilities. However, digital X-ray images often suffer
Marisha Pertiwi +3 more
doaj +1 more source
Improvement of BM3D Algorithm and Employment to Satellite and CFA Images Denoising
, 2011 This paper proposes a new procedure in order to improve the performance of block matching and 3-D filtering (BM3D) image denoising algorithm. It is demonstrated that it is possible to achieve a better performance than that of BM3D algorithm in a variety ...
Pakdelazar', 'Omid +1 more
core +2 more sources
Compressive Sampling Orthogonal Matching Pursuit Algorithm Based on Peak Signal to Noise Ratio
International Journal of Future Generation Communication and Networking, 2016 In order to improve signal reconstruction accuracy, a CoSaMP (Compressive Sampling Matching Pursuit) algorithm based on peak signal to noise ratio is proposed in allusion to the disadvantages of CoSaMP algorithm. Firstly, the discrete cosine wave transform is improved to initially estimate the signal sparseness; secondly, the optimum iteration number ...
openaire +1 more source
Spectral band selection and ANIMR-GAN for high-performance multispectral coal gangue classification
Scientific ReportsLow-energy and efficient coal gangue sorting is crucial for environmental protection. Multispectral imaging (MSI) has emerged as a promising technology in this domain.
Qingya Wang +5 more
doaj +1 more source
Using of the Moore-Penrose Inverse Matrix in Image Restoration [PDF]
, 2013 A method for digital image restoration, based on the Moore- Penrose inverse matrix, has many practical applications. We apply the method to remove blur in an image caused by uniform linear motion. This method assumes that linear motion corresponds to an
Miladinovic, Marko +2 more
core
PhotonicsThis paper presents a new high-speed RGB image transmission system over Free-Space Optics (FSO) channel employing Optical Code Division Multiple Access (OCDMA) with Permutation Vector (PV) codes.
Somia A. Abd El-Mottaleb +4 more
doaj +1 more source
Blockwise SURE Shrinkage for Non-Local Means
, 2013 In this letter, we investigate the shrinkage problem for the non-local means (NLM) image denoising. In particular, we derive the closed-form of the optimal blockwise shrinkage for NLM that minimizes the Stein's unbiased risk estimator (SURE).
Natarajan, Premkumar +3 more
core +1 more source