Set partition coding (SPC) has shown tremendous success in image compression. Despite its popularity, the lack of error resilience remains a significant challenge to the transmission of images in error-prone environments. In this paper, we propose a novel data representation called the progressive significance map (prog-sig-map) for error-resilient SPC. It structures the significance map (sig-map) into two parts: a high-level summation sig-map and a low-level complementary sig-map (comp-sig-map). Such a structured representation of the sig-map allows us to improve its error-resilient property at the price of only a slight sacrifice in compression efficiency. For example, we have found that a fixed-length coding of the comp-sig-map in the prog-sig-map renders 64% of the coded bitstream insensitive to bit errors, compared with 40% with that of the conventional sig-map. Simulation results have shown that the prog-sig-map can achieve highly competitive rate-distortion performance for binary symmetric channels while maintaining low computational complexity. Moreover, we note that prog-sig-map is complementary to existing independent packetization and channel-coding-based error-resilient approaches and readily lends itself to other source coding applications such as distributed video coding.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1109/TIP.2012.2190084 | DOI Listing |
Front Neurol
January 2025
Department of Kinesiology, Penn State University, 19 Recreation Building, University Park, PA, United States.
Introduction: Resting state-fMRI, provides a sensitive method for detecting changes in brain functional integrity, both with respect to regional oxygenated blood flow and whole network connectivity. The primary goal of this report was to examine alterations in functional connectivity in collegiate American football players after a season of repetitive head impact exposure.
Methods: Collegiate football players completed a rs-fMRI at pre-season and 1 week into post-season.
BMJ Nutr Prev Health
December 2024
Orthopeadic Research Unit, Sahlgrenska University Hospital, Goteborg, Sweden.
Background: Inadequate energy intake among athletes can lead to low energy availability (LEA) which in turn can result in negative effects on athletic performance and physical and psychological health. This syndrome is known as relative energy deficiency in sports (REDs).
Objective: To map perceived changes in overall food intake among adolescent athletes during the previous year, as well as weekly changes during a 3-month period and to examine how these changes are associated with mental health, physical load and sex.
BMC Public Health
January 2025
Department of Public Health and Epidemiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
Background: Non-communicable diseases (NCDs) have become a major public health concern in Iraq, playing a significant role in the country's morbidity and mortality rates. To offer a thorough overview of the patterns and the overall impact of NCDs on public health, this study aims to map the trends in the incidence, prevalence, and mortality rates of NCDs in Iraq between 2003 and 2021.
Methods: Data from the Global Burden of Disease (GBD) Study 2021 were utilized.
Mol Neurobiol
January 2025
Department of Urology, Yantai Yuhuangding Hospital, Qingdao University, No. 20 East Yuhuangding Road, Yantai, 264000, Shandong, China.
Stress urinary incontinence (SUI) currently lacks effective treatment options, and the restoration of neurological function remains a major challenge, with unmet clinical needs. Research has indicated that adipose-derived stem cells (ADSCs) can be induced to differentiate into neural-induced adipose-derived stem cells (NI-ADSCs) under specific inductive conditions, exhibiting excellent neuroregenerative capabilities. ADSCs were obtained from female SD rats and induced into NI-ADSCs.
View Article and Find Full Text PDFPurpose: The spine research within India has seen significant advancement, yet detailed examinations of its impact and evolution still need to be made sparse. To conduct a comprehensive scientometric review of the most frequently cited papers in Indian spine research from 1995 to 2024, aiming to map the field's evolution and its global impact.
Methods: Utilizing the Scopus database, a search was performed with keywords related to spine research, identifying 105 highly cited papers.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!