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| 1 | Optimal Feature Extraction Using Greedy Approach for Random Image Components and Subspace Approach in Face Recognition显示文摘An innovative and uniform framework based on a combination of Gabor wavelets with principal component analysis (PCA) and multiple discriminant analysis (MDA) is presented in this paper. In this framework, features are extracted from the optimal random image components using greedy approach. These feature vectors are then projected to subspaces for dimensionality reduction which is used for solving linear problems. The design of Gabor filters, PCA and MDA are crucial processes used for facial feature extraction. The FERET, ORL and YALE face databases are used to generate the results. Experiments show that optimal random image component selection (ORICS) plus MDA outperforms ORICS and subspace projection approach such as ORICS plus PCA. Our method achieves 96.25%, 99.44% and 100% recognition accuracy on the FERET, ORL and YALE databases for 30% training respectively. This is a considerably improved performance compared with other standard methodologies described in the literature. | Mathu Soothana S.Kumar Retna Swami Muneeswaran Karuppiah | 2013 | Journal of Computer Science & Technology2013，28，2： | 2 |
| 2 | Synthesis, mechanical, thermal and chemical properties of polyurethanes based on cardanol显示文摘 | MYTHILI C V RETNA A M GOPALAKRISHNAN S | 2004 | Bulletin of Material Science2004，27，3： | 1 |
| 3 | An nanoparticle decorated silicate network for the amperometric sensing of isoniazid 显示文摘 | Bikash K J C Retna R | 2010 | Ta- lanta2010，80，： | 1 |
| 4 | Electroanalysis of Ascorbate and Dopamine at a Gold Electrode Modified with a Positively Charged Self-assembled Monolayer显示文摘 | Retna Raj C Ohsaka T | 2001 | Journal of Electroanalytical Chemistry2001，496，： | 1 |
| 5 | Carbon nanotube supported platinum nanopartieles for the voltammetric sensing of hy-drazine显示文摘 | Chakraborty S Retna Raj C | 2010 | Sensor Actuat B2010，147，： | 1 |
| 6 | Electrocatalytic oxidation of NADH at the self-assembledmonolayerofniekel (Ⅱ) macrocycle on gold electrode 显示文摘 | RETNA R C VENGATAJALABATHY G K OHSA-KA T | 2000 | Bioelectrochemistry2000，51，2： | 1 |
| 7 | Synthesis,mechanical,thermal and chemical properties of polyurethanes based on cardanol显示文摘 | Mythil C V Retna A M Gopalakrishnan S | | 0，，： | 1 |
| 8 | Electrocatalytic oxidation of NADH at the self - assembled monolayer of nickel(II) macrocycle on gold electrode显示文摘 | C Retna Raj K Vengatajalabathy Gobi Takeo Ohsaka | 2000 | Bioelectrochemistry2000，51，2： | 1 |
| 9 | Pt Nanoparticle-Based Highly Sensitive Platform for the Enzyme-Free Amperometric Sensing of H2O2显示文摘 | Sufi Chakraborty C Retna Ran | 2009 | Biosensors and Bioelectronics2009，24，2009： | 1 |
| 10 | Synthesis, mechanical, thermal and chemical properties of polyurethanes based on cardanol显示文摘 | C. V. Mythili A. Malar Retna S. Gopalakrishnan | 2004 | Bulletin of Materials Science2004，，3： | 1 |
| 11 | Syntyesis, me- chanical, thermal and chemical properties of polyurehanes based on cardanol显示文摘 | Mythili C V Retna A M Gopalakrishnan | 2004 | Bulletin of Materials Science2004，27，3： | 1 |
| 12 | Assessment of dental treatment required and analysis of cost in the management of dental caries among semiurban primary school children of Kerala显示文摘 | RETNA KN | 2000 | J Ind Soc Pedod Prev Dent2000，18，1： | 1 |
| 13 | Electrochemical and in situ FTIR spectroscopic investigation on the electrochemical transformation of 4-aminothiophenol on a gold electrode in neutral solution显示文摘 | RETNA R C KITAMURA F OHSAKA T | 2001 | Langmuir2001，17，： | 1 |
| 14 | Highly sensitive and selective electrochemical detection of sub-ppb level chromium(Ⅵ) using nano-sized gold particle显示文摘 | Bikash Kumar Jena Retna Raj C | 2008 | Talanta2008，76，： | 1 |
| 15 | Gold Nanoelectrode Ensembles for the Simultaneous Electrochemical Detection of Ultratrace Arsenic, Mercury, and Copper显示文摘 | Bi K Jena C Retna Raj | 2008 | Anal Chem2008，80，13： | 1 |
| 16 | Gold nanoparticle arrays for the vohammetric sensing of dopamine 显示文摘 | Retna Raj C Takeyoshi Okajima Takeo Ohsaka | 2003 | Electrochemistry Communications2003，543，： | 1 |
| 17 | Gold nanoelectrode ensembles for the simultaneous electrochemical detection of uhratrace arsenic, mercu- ry,and copper显示文摘 | Kumar Jena B Retna Raj C | 2008 | Anal Chem2008，80，13： | 1 |
| 18 | Electrochemical in situ FTIR spectroscopic investigation on the electrochemical transformation of 4-Aminothiopheol on a gold dectrode in neutral solution显示文摘 | RETNA RAJ C KITAMURA FUSAO OHSAK TAKEO | 2001 | Langmiur2001，17，23： | 1 |
| 19 | Optimization of Bacterial Doses and Incubation Time on Bio-Ehanol Fermentation of Nipah (Nypa fruticans) for Biofuel Energy显示文摘 | Wiludjeng Trisasiwi Ari Asnani Retna Setyawati | 2011 | Journal of Life Sciences2011，5，12： | 0 |
| 20 | Mode-locked ytterbium-doped fiber laser with zinc phthalocyanine thin film saturable absorber显示文摘A stable mode-locked laser was demonstrated using a newly developed zinc phthalocyanine(ZnPc)thin film as passive saturable absorber(SA)in ytterbium-doped fiber laser(YDFL).The ZnPc thin film was obtained using a casting method and then inserted between the two fiber ferrules of a YDFL ring cavity to generate mode-locked pulses.The resulting pulsed laser operated at a wavelength of 1034.5 nm having a repetition rate of 3.3 MHz.At pump power of 277 mW,the maximum output power and pulse energy are achieved at 4.92 mW and 1.36 nJ,respectively.ZnPc has a high chemical and photochemical stability,and its significance for use as a potential SA in a mode-locked laser is reported in this work. | Rawan S.M.Soboh Ahmed H.H.Al-Masoodi Fuad N.A.Erman Abtisam H.H.Al-Masoodi Bilal Nizamani Hamzah Arof Retna Apsari Sulaiman Wadi Harun | 2022 | Frontiers of Optoelectronics2022，15，2： | 0 |
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