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Video Coding Technique with Multi Objective Particle Swarm Optimization and EZW
M.Thamarai,R.Shanmugalakshmi 대한전기학회 2016 Journal of Electrical Engineering & Technology Vol.11 No.5
Video coding plays an important role in video transmission and storage applications. Today’s increasing order of multimedia applications led to a lot of research works in video coding in such a way that high compression ratio is achieved with the available bandwidth. Wavelet based image compression has witnessed great success in the past decade. Wavelet transform based motion compensated video codec performs better compression in order to meet the rate and distortion constraint in video transmission than the block based techniques. However, it is well known that the 2D DWT does not represent directional features of images efficiently. Lots of efforts have been put into multiscale directional representation. In this paper, video coding using directional transform DDWT is considered and its expansive nature is reduced by noise shaping algorithm. High compression ratio is achieved through the selection of optimal coefficients of DDWT using Multi Objective Particle Swarm Optimization (MOPSO) method. In this video coding technique, the objective functions of Entropy, Computation Time and Mean Square Error are considered for optimization with the constraints of bits per pixel and frame rate. The selected optimum coefficients are encoded using EZW method. The performance of the proposed method is compared with the standard 3D SPIHT coding.
Metal oxide curcumin incorporated polymer patches for wound healing
R., Thamarai Selvi,A.P.S., Prasanna,R., Niranjan,M., Kaushik,T., Devasena,J., Kumar,Chelliah, Ramachandran,Oh, Deog-Hwan,S., Swaminathan,G., Devanand Venkatasubbu Elsevier 2018 APPLIED SURFACE SCIENCE - Vol.449 No.-
<P><B>Abstract</B></P> <P>Sodium alginate and Poly vinyl alcohol (PVA) based scaffolds are very well used for wound healing purpose. Sodium alginate is a natural polymer which is used for many biomedical applications. PVA is a biocompatible polymer used in many biomedical applications. Incorporation of Titanium dioxide (TiO<SUB>2</SUB>) nanoparticles in the scaffold increases the wound healing property of the scaffold. TiO<SUB>2</SUB> nanoparticles are biocompatible. They enhance the wound healing activity by photo catalytic property. Curcumin is used for the treatment of inflammation. It is the main active compound of turmeric Curcumin is used for treatment of wound and inflammation. It had antimicrobial and antioxidant property.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The work deals with the fabrication of patches for wound healing. </LI> <LI> Matal oxide nanoparticle is incorporated in the patch. </LI> <LI> Curcumin is incorporated in the patch. </LI> <LI> The patch surface is used for wound healing. </LI> <LI> Antibacterial and antifungal studies are done. </LI> </UL> </P>