Results 51 to 60 of about 113,946 (294)
A New Method For Digital Watermarking Based on Combination of DCT and PCA
, 2015 In the digital watermarking with DCT method,the watermark is located within a range of DCT coefficients of the cover image. In this paper to use the low-frequency band, a new method is proposed by using a combination of the DCT and PCA transform.
Hosseini, S. Abolfazl, Saboori, Arash
core +1 more source
Recent H-alpha results on pulsar B2224+65's bow-shock nebula, the "Guitar" [PDF]
, 2016 We used the 4 m Discovery Channel Telescope (DCT) at Lowell observatory in 2014 to observe the Guitar Nebula, an Hα bow-shock nebula around the high-velocity radio pulsar B2224+65.
Cashmen, Lauren R. +5 more
core +2 more sources
FEBS Open Bio, EarlyView.A novel signature integrating genome‐wide analysis with clinical factors predicts recurrence in stage II colorectal cancer and enables a new risk stratification to guide postoperative adjuvant chemotherapy. Clinical risk stratification for postoperative recurrence in patients with pathological stage II (pStage II) colorectal cancer (CRC) is essential ...
Mayuko Otomo +7 more
wiley +1 more source
IWCD-PROPOSED IMAGE COMPRESSION METHOD BASED ON INTEGER WAVELET AND DCT [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2008 This paper describes a new lossy image compression decompression algorithm. In lossy compression techniques there are some loss of information, and image cannot be reconstructed exactly.This algorithm will be referred to as (IWDC), which stands for ...
Abdullah.M.Awad Al-Fahdawi
doaj +1 more source
A Session based Multiple Image Hiding Technique using DWT and DCT
, 2012 This work proposes Steganographic technique for hiding multiple images in a color image based on DWT and DCT. The cover image is decomposed into three separate color planes namely R, G and B. Individual planes are decomposed into subbands using DWT.
Bhattacharya, Tanmay +2 more
core +1 more source
Feedforward data-aided phase noise estimation from a DCT basis expansion [PDF]
, 2008 This contribution deals with phase noise estimation from pilot symbols. The phase noise process is approximated by an expansion of discrete cosine transform (DCT) basis functions containing only a few terms.
Bhatti, Jabran, Moeneclaey, Marc
core +3 more sources
Advanced Functional Materials, EarlyView.This study introduces VIVID (Vesicle In Vivo Identification using DNA), a qPCR‐based platform that tracks PCR‐amplifiable DNA tags loaded in the EVs for accurate and quantifiable EV biodistribution in vivo. ABSTRACT Extracellular vesicles (EVs) represent promising carriers for nucleic acid therapeutics, offering advantages over synthetic nanoparticles ...
Oscar Boyadjian +5 more
wiley +1 more source
Chaotic Image Steganography using DCT and DWT [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2013 The researchers was interest in the issue of security from long time ago even arrived to the current age (the digital age), and because of the importance of this topic and the challenges in it, so this work which included study and application of new ...
Nadia Mohammed
doaj +1 more source
Advanced Healthcare Materials, EarlyView.Surface polarization of PVDF films combined with mechanical stimulation generates piezoelectric electrical cues that modulate cardiomyoblast behaviour. Non‐poled and poled PVDF substrates provide distinct electroactive microenvironments influencing cell adhesion, proliferation, and differentiation.
Rafaela M Meira +3 more
wiley +1 more source
Global Inhomogeneity Index Evaluation of a DCT-based EIT Lung Imaging
Current Directions in Biomedical Engineering, 2020 Purpose: To evaluate a novel structural-functional DCT-based EIT lung imaging method against the classical EIT reconstruction. Method: Taken retrospectively from a former study, EIT data was evaluated using both reconstruction methods.
Chen Rongqing, Möller Knut
doaj +1 more source