简介：Toaimathighercodingefficiencyformultiviewvideocoding,themultiviewvideowithamodifiedhighefficiencyvideocoding(MV-HEVC)codecisproposedtoencodethedependentviews.However,thecomputationalcomplexityofMV-HEVCencoderisalsoincreasedsignificantlysinceMV-HEVCinheritsallcomputationalcomplexityofHEVC.ThispaperpresentsanefficientalgorithmforreducingthehighcomputationalcomplexityofMV-HEVCbyfastdecidingthecodingunitduringtheencodingprocess.Inourproposal,thedepthinformationofthelargestcodingunits(LCUs)fromindependentviewandneighboringLCUsisanalyzedfirst.Afterwards,theanalyzedresultsareusedtoearlydeterminethedepthfordependentviewandthusachievecomputationalcomplexityreduction.Furthermore,apredictionunit(PU)decisionstrategyisalsoproposedtomaintainthevideoquality.Experimentalresultsdemonstratethatouralgorithmcanachieve57%timesavingonaverage,whilemaintaininggoodvideoqualityandbit-rateperformancecomparedwithHTM8.0.

简介：Someshortcomingsofcommonfractalimagecodingmethodsarestudied,thentheyarecorrectedwithanewmethod.ThenewmethodisimprovedfurtherinDCTdomain.Codingresultsshowtheadvantageofthenewmethod.

简介：高效地利用单个说明的性能为录像编码的多重数据(SIMD)体系结构，有power-of-two存储器模块的并联存储器体系结构被建议。扭曲计划在水平、垂直的方向提供没有冲突的存取给邻近的元素(８位和16位数据类型)或与power-of-two间隔采用二篇小说，它不在以前的并联存储器体系结构是可能的。区域消费和延期评价与4，8和16个记忆模块分别地被给。在一种0.18-μm互补金属氧化物半导体技术下面，当读了并且写潜伏时，合成结果证明建议系统能以19k门的成本与16个记忆模块完成230MHz钟频率分别地是3和2个钟周期。我们在一个录像信号处理器(VSP)上实现建议并联存储器体系结构。VSP与建议建筑学提高了的结果表演为H.264完成1.28×加速即时译码。

简介：Anewblock-basedfractalimagecodingalgorithmcalledFractalBlockCodinginResidueDomain(FBCRD)isproposed.InbasicFractalBlockCoding(FBC)algorithm,eachblock(calledrangeblock)isencodedbyanaffinemappingfromadomainblockwithinthesameimagetoitself.Thedecoderusestheparametersofthesemappingstosynthesizethereconstructedimagethroughaniterativeprocedure.FBCRDisamodificationofbasicFBC.InFBCRD,rangeblocksanddomainblocksareallresidueblockssubtractedfromtheirblockmeansandboththeparametersofaffinemappingsandblockmeansarecoded.Thismodificationleadstofeweriterationsatthedecoder.AnoptimizeddecodingstrategyisalsointroducedwhichreducestotaldecodingtimebymorethanhalfofthatofbasicFBC.Thisimprovementisfavorableforrealtimeimplementationoffractalimagecompression.

简介：Anovelparadigmforfractalcodingselectivelycorrectsthefractalcodeforselecteddomainblockswithanimage-adaptiveVQcodebook.Thecodebookisgeneratedfromtheinitialuncorrectedfractalcodeandis,therefore,availableatthedecoder.Anefficienttrade-offisgeneratedbetweenincrementalperformanceandbitrate.

简介：AbstractPurpose:The reliability of trauma coding is essential in establishing the reliable trauma data and adopting efficient control and monitoring policies. The present study aimed to determine the reliability of trauma coding in educational hospitals affiliated to Shahid Beheshti University of Medical Sciences, Iran.Methods:In this descriptive cross-sectional study, 591 coded medical records with a trauma diagnosis in 2018 were selected and recoded by two coders. The reliability of trauma coding was calculated using Cohen's kappa. The data were recorded in a checklist, in which the validity of the content had been confirmed by experts.Results:The reliability of the coding related to the nature of trauma in research units was 0.75—0.77, indicating moderate reliability. Also, the reliability of the coding of external causes of trauma was 0.57—0.58, suggesting poor reliability.Conclusion:The reliability of trauma coding both in terms of the nature of trauma and the external causes of trauma does not have a good status in the research units. This can be due to the complex coding of trauma, poor documentation of the cases, and not studying the entire case. Therefore, holding training courses for coders, offering training on the accurate documentation to other service providers, and periodically auditing the medical coding are recommended.

简介：Anewmethodofcodinganddecodinginthesystemofunderwaterimagetransmissionisintroduced,includingtherapiddigitalfrequencysynthesizerinmultiplefrequencyshiftkeying,imagedatagenerator,imagegrayscaledecoderwithintelligentfuzzyalgorithm,imagerestorationanddisplayonmicrocomputer.

简介：Basedontheperiodicstructureofcodeworksoflinearblockcodes,anewideaoflength-varyingcodingdigitalcommunicationssystemisproposedtosavethechannel.Itisshown,byexample,thatupto1/3ofchannelcapacitycanbesavedbythenewsysteminsomespecialsituations.Inordertofindwhichblockcodeissuitabletouseinlength-varyingcodingsystem,theperioddistributionofthecodehastobecal-culated.Newrwsultsabouttheperioddistributionarepresentedwhilemanyopenproblemsremain.

简介：Astructuralgene(750bp),whichcodesforatypeIribosomeinactivatingprotein,trichosanthin,hasbeendesignedaccordingtothecodonusageofhighlyexpressedgeneinE.coliandchemicallysynthesized.Inthesynthesizedgene,twenty-sevenuniquerestrictionsiteswereevenlydispersedwithanaveragedistancebetweentwoadjacentsiteslessthan50bptofacilitateasystematicinvestigationonstructure-functionalrelationshipofthisproteinbysite-directedmuta-genesis.Tosynthesizeit,thewholegenewasdividedintothreelargefragments(EP,PNandNH)whichwereassembledfromseveralchemicalsyntheticoligonucleotidesbyenzymaticmethod.TheassemblyofboththefragmentEPfromsixoligonucleotides(A-F)andthefragmentPNfromfouroligomers(G-J)wascatalyzedbyT4DNAligaseinusingthesinglestrandedDNAmethod[Chen,H.-B.etal,Nucl.AcidsRes.,18,871(1990)].AndfragmentNHwasformedfromthreeduplexesK,LandMbytheclassicaldoublestrandedDNAmethod.Finally,

简介：Multilevelphotoncombinedwithbinarypulsepositionmodulation(BPPM)(Manchesterpulsedsignals),isintroducedinthisletter.Initially,errorprobabilityderivationandexplanationforfour-levelphotoncommunicationswiththatBPPMispresented.Next,the2-levelphotoncommunicationsmatchingwithBPPMisproposed.Forperformancecomparison,itisdonewiththattheconventionalschemebyfxingthebackgroundnoiseandalsoincreasingnumberofphotonperslot.Successfullywithapplyingconvolutionalcodingforsystemimproving,theproposedmultilevelphotononBPPMwiththiscodingschemeachieveshighergain.Finally,thisworkalsobeneftstoimprovingforfurtherperformancewhenconsideringwithmultilevelerrorcontrolcodingaswell.

简介：在里面无线多点传送，网络编码最近作为实质的改进吸引了注意到包重发计划。然而，发现最小化重发的最佳的网络代码的问题是难的解决或接近。这份报纸论述二个计划减少重发的数字为可靠高效地多点传送。一个人是用网络基于改进Vandermonde矩阵(VRNC)编码的重发，其它是用网络基于适应改进Vandermonde矩阵(AVRNC)编码的重发。用VRNC计划，发送者都选择包接收装置与改进Vandermonde失去了并且编码他们矩阵；当接收装置收到足够编码的重发包时，所有失去的包能被恢复。与AVRNC计划，发送者能在每重发包，然后改进Vandermonde矩阵发送以后从所有接收装置获得恢复信息能被更新，因此减少编码并且译码的复杂性。我们的建议计划能完成假定重发包的理论更低的界限无损失，并且就重发包损失而言接近理论更低的界限。模拟结果证明建议算法能高效地减少重发的数字，因此改善的传播效率。

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简介：Arithmeticcodingisarelativelynewloss-lessdatacompressiontechniquethathasattractedmuchattentioninrecentyears.Weshowtheiterationofbit-levelarithmeticcodingcanbespecifiedbyacontinuousfunction.Theanalysisexpressionandsomepropertiesofthisfunctionarediscussed.Anapplicationofthefunctionisprovidedforexploringthesecurityofarithmeticcodeswhentheyareusedfordataencryption.

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简介：Thispaperproposesanewadaptivepost-filteringalgorithmtoremovecodingartifactsinblock-basedvideocoder.Theproposedmethodconcentratesonblockingandringingartifactsremoval.Forde-blocking,theblockingstrengthisidentifiedtodeterminethefilteringrange,andthemaximumquantizationparameteroftheimageisusedtoadaptthe1Dfuzzyfilter.Forde-ringing,besidestheedgedetection,acomplementaryringingdetectionmethodisproposedtolocatetheneglectedringingblocks,andthegradientthresholdisadoptedtoadjusttheparameterof2Dfuzzyfilter.ExperimentsareperformedontheMPEG-4sequences.Comparedwithothermethods,theproposedoneachievesbetterdetailpreservationandartifactsremovalperformancewithlowercomputationalcost.

简介：Losslessdatahidingcanrestoretheoriginalstatusofcovermediaafterembeddedsecretdataareextracted.In2010,Wangetal.proposedalosslessdatahidingschemewhichhidessecretdatainvectorquantization(VQ)indices,buttheencodingstrategiesadoptedbytheirschemeexpandthefinalcodestream.ThispaperdesignsfourembeddingandencodingstrategiestoimproveWangetal.'sscheme.TheexperimentresultoftheproposedschemecomparedwiththatoftheWangetal.'sschemereducesthebitratesofthefinalcodestreamby4.6%andraisesthepayloadby1.09%onaverage.

简介：积累的低密度同等值检查(LDPCA)codec被建议为在编码的分布式的录像(DVC)发现工程，它提供灵活编码率。尽管使率适应录像的关联能使用反馈隧道，但是在真实应用程序，用反馈，隧道不能总是是可能的。解决这个问题，一些研究人员求婚了在编码器估计代码率，但是性能不很好。基于他们的研究，这篇论文在率估计上为重复考虑集中率的影响，它能用它的检查矩阵是计算的。作为一个预研项目，这篇论文注意常规LDPCAcodec。同时，它在估计的转线路概率考虑偏差的影响，它给一些限制评估估计。在实验，建议算法能由多达1dB1.2dB改进率失真表演。

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简介：Ananti-interferenceorthogonalcodingisintroducedbasedonHadamardcodeandOrthogonalFrequency-DivisionMultiplexing(OFDM),inwhichallsub-channelsofUltra-WideBand(UWB)systemaredividedintoMsub-bandsandthepoweroftheeverytransmittedsymbolspreadsovereachofthesub-bandsratherthanonesub-band.Thecompletemathematicalanalyticalrelationbetweenencodinganddecodingispresentandtherobustnessofthesystemtointerferenceisexamined.Whensomesub-channelsareaffectedbyinterferenceorjamming,thesystemcouldregeneratethesymbolfromothers.SimulationresultsshowthattheAnti-InterferenceUWB-OFDM(AI-OFDM)systemhasevidentadvantagesoverconventionalUWB-OFDMsystemsaswellastheInterferenceSuppressingUWB-OFDM(IS-OFDM)inBitErrorRate(BER)thankstoitsrobustnesstointerference.Inthecaseofbadinterference,theAI-OFDMsystemcouldworkuptosnuffwithoutanyanti-interferencestep,buttheconventionalUWB-OFDMsystemcouldn't.ComparedwiththeIS-OFDMsystem,theAI-OFDMsystemimprovestheperformanceabout5dBinSignal-to-InterferenceRatio(SIR)andtheorderof1～2inBER.

简介：AbstractIncreasing evidence suggests that long non-coding RNAs (lncRNAs) are of vital importance for various biological processes, and dysregulation of lncRNAs is frequently associated with various diseases such as psoriasis. LncRNAs modulate gene expression at the transcriptional, post-transcriptional, and translational levels; however, the specific regulatory mechanisms of lncRNAs in psoriasis remain largely unexplored. This review provides an overview of recent studies investigating mechanisms and functions of lncRNAs in psoriasis, especially focusing on the role of lncRNAs in keratinocytes, T cells, and dendritic cells.