简介:Asymmetricstereoscopicvideocodingcantakeadvantageofbinocularsuppressioninhumanvisionbyrepresentingoneofthetwoviewsinlowerquality.Thispaperproposesabitallocationstrategyforasymmetricstereoscopicvideocoding.Inordertoimprovetheaccuracyofbitallocationandratecontrolintheleftview,aproportionalintegral-derivativecontrollerisadopted.Meanwhile,tocontrolthequalityfluctuationbetweenconsecutiveframesoftheleftview,aqualitycontrollerisadopted.Besides,afuzzycontrollerisproposedtocontrolthevariationinqualitybetweentheleftandrightviewsbycomparingthePSNRdisparityoftwoviewswithafixedthreshold,whichisusedtoquantizethebinocularpsycho-visualredundancyandadjustthequantizationparameter(QP)oftherightviewcorrespondingly.TheproposedalgorithmhasbeenimplementedinH.264/AVCvideocodec,andtheexperimentalresultsshowitseffectivenessinratecontrolwhilekeepingagoodqualityfortheleftview,andfewerbitsareallocatedfortherightviewsothattheoverallbitrateissavedby7.2%atmostwithoutthelossofsubjectivevisualqualityforstereoscopicvideo.
简介:摘要“一带一路”域内跨境双向投资关系中,我国系典型的资本输出国,但沿线区域级地缘冲突不断,法律文化差异明显,走出去的企业面临较高的投资风险。在单边主义兴起、多边合作停滞的当下,双边投资协定(BIT)是资本输出国保护、促进海外投资的最重要条约保障。然,我国与沿线国家之间的BIT存有诸多问题,难以适应保护投资“安全回来”的现实需要,故在修订、重签BIT过程中,急需对国民待遇的限制性规定、负面清单模式缺失、代位求偿权范围等问题进行全面完善,以期最大限度实现保护我国投资者权益与尊重东道国主权的博弈平衡。
简介:摘要:建立高校科技创新基地,努力将创新创业教育融入人才培养全过程,这是推进“三全育人”综合改革的重要举措,高校科技创新基地应以培育创新型人才为重要目标,坚持系统规划,优化创新创业队伍建设,加强课程建设和制度保障,营造创新创业文化氛围,打造协同型综合育人平台。