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Overview of Potential Technologies for Future Video Coding Standard (FVC) in JEM Software
Ismail Marzuki,Donggyu Sim 대한전자공학회 2018 IEIE Transactions on Smart Processing & Computing Vol.7 No.1
In this paper, we present an investigation into several potential technologies that are being developed and prepared for Future Video Coding (FVC) standard. There are some requirements that need to be considered in delivering the FVC standard. The Joint Video Exploration Team (JVET) is now inspecting potential tools to be adopted as video coding technology under the Joint Exploration Model (JEM) reference software. This paper provides an overview of the technical features of JEM software, a brief account of the background, and the key elements according to the latest version of JEM software and its algorithm description.
Adaptive Gaussian Low-pass Pre-filtering for Perceptual Video Coding
Wahyu Wiratama,Yong-Jo Ahn,Ismail Marzuki,Donggyu Sim 대한전자공학회 2018 IEIE Transactions on Smart Processing & Computing Vol.7 No.5
This paper proposes adaptive Gaussian low-pass pre-filtering for perceptually highquality video encoding, considering the characteristics of human visual perception. The proposed pre-filtering adaptively removes high-frequency components that are not visually perceptible. In the proposed algorithm, a pixel-wise adaptive Gaussian filter is generated based on a local contrast threshold for a block that is not highly textured. Each pixel for the block is adaptively filtered, and the original pixel is replaced by the filtered value or a weighted one that is a mixture of the filtered and original values for edge preservation. The proposed algorithm can remove visually imperceptible components, and leads to bit reduction without visual deterioration of the coded videos. Experimental results show that the proposed algorithm can reduce the bitrate by up to 30% with minimal computational complexity and minimal visual quality loss for several video sequences.
Samsuri Abdullah,Muhammad Azhari Imran,Amalina Abu Mansor,Ku Mohd Kalkausar Ku Yusof,Nazri Che Dom,Siti Khamisah Saijan,Siti Rohana Mohd Yatim,Ali Najah Ahmed,Marzuki Ismail 한국대기환경학회 2022 Asian Journal of Atmospheric Environment (AJAE) Vol.16 No.1
Malaysia reported its first COVID-19 case on January 25, 2020, and the cases have continued to grow, necessitating the implementation of additional measures. Hence, determining the factors responsible for the significant increase in COVID-19 cases is the top priority issue for the government to take necessary action and ultimately restrain this virus before the vaccine availability. Researchers had predicted that air pollution had an indirect relationship with COVID-19 in terms of virus infections. As a result, this study focuses on the link between the Air Pollutant Index (API) and COVID-19 infections. The initial data set consists of daily confirmed COVID-19 cases in Malaysia and API readings obtained from the Ministry of Health (MOH) and the Department of the Environment (DOE). The results show that Klang (S22) recorded the highest mean of API which at 62.70 while the lowest is at Limbang (S37) (25.37). Next, due to the implementation of Movement Control Order (MCO) in Malaysia and reducing social movement, 27 stations recorded a good level of API compare to the stations that recorded moderate and unhealthy levels. There is positive relationship between API and COVID-19 at each of the region which are North 0.4% (R2=0.004), Central 2.1% (R2=0.021), South 0.04% (R2=0.0004), East 1.6% (R2=0.016), Sarawak 0.2% (R2=0.002), meanwhile Sabah recorded negative correlation at 4.3% (R2=0.043). To conclude, the API value did not have a strong relationship with the rising number of COVID-19 daily cases.