In the past few years, with development of information technology and focus on security, many studies have gradually been aimed at data hiding technology. The embedding extraction algorithms are mainly used by to hide that requires secret transmission into a multimedia carrier so cannot be realized achieve secure communication. Among them, reversible (RDH) is for applications demand as well ori...

During medical treatment, personal privacy is involved and must be protected. Healthcare institutions have to keep images or health information secret unless they permission from the data owner disclose them. Reversible hiding (RDH) a technique that embeds metadata into an image can recovered without any distortion after hidden been extracted. This work aims develop fully reversible two-bit emb...

Schemes of reversible data hiding in encrypted domain (RDH-ED) based on symmetric or public key encryption are mainly applied the scenarios end-to-end communication. To provide security guarantees for multi-party scenarios, a RDH-ED scheme secret image sharing Chinese remainder theorem (CRT) is presented. In application ( $t$ </inline-formul...

Reversible data hiding (RDH) is a special class of steganography, in which the cover image can be perfectly recovered upon extraction secret data. However, most image-based RDH schemes focus on improving capacity–distortion performance. In this paper, we propose novel scheme not only effectively conceals traces left by HS but also improves First, high-precision edge predictor LS-ET (Least Squar...

OBJECTIVE To describe the epidemiology of snakebite in the "Top End" of the Northern Territory, and the envenoming syndromes of individual snake species. STUDY DESIGN Prospective collection of clinical data and snake identity. SETTING Royal Darwin Hospital (RDH), a 300-bed tertiary hospital servicing a population of 140,000 spread over 522 561 km2. PATIENTS All patients with bites by conf...

Recently more attention is paid to reversible data hiding (RDH) in encrypted images, since it maintains the excellent property that the original image cover can be losslessly recovered after data embedded is extracted while protecting the image content’s as confidential. In this survey paper different reversible data hiding methods are analyzed. All previous methods embed data by reversibly vac...

Reversible data hiding (RDH) is desirable in applications where both the hidden message and the cover medium need to be recovered without loss. Among many RDH approaches is prediction-error expansion (PEE), containing two steps: i) prediction of a target pixel value, and ii) embedding according to the value of prediction-error. In general, higher prediction performance leads to larger embedding...

The remarkable capacity of the genus Dehalococcoides to dechlorinate a multitude of different chlorinated organic compounds reflects the number and diversity of genes in the genomes of Dehalococcoides species encoding reductive dehalogenase homologues (rdh). Most of these genes are located in the vicinity of genes encoding multiple antibiotic resistance regulator (MarR)-type or two-component sy...

Reversible data hiding in encrypted domain (RDHED) has greatly attracted researchers as the original content can be losslessly reconstructed after the embedded data are extracted, while the content owner’s privacy remains protected. Most of the existing RDH-ED algorithms are designed for grayscale/color images, which cannot be directly applied to other carriers, such as three-dimensional (3D) m...

Abstract Introduction Obstructive sleep apnoea (OSA) is highly prevalent among patients undergoing bariatric surgery. Previous studies have reported a higher risk of complications, longer hospital stays and ICU admissions OSA following general surgery but clinical outcomes remain unclear. Therefore, we evaluated the adverse Methods We undertook systematic review meta-analysis followed by retros...