搜索
您的当前位置:首页正文

触觉记忆DSTM任务中感觉-运动整合的信息表征研究

来源:爱够旅游网
Iij{I2l;llI{l圈‘‘ ,2i;0:。1 6;  ,N O__. 1-2a。 。 。 。 . 。 。 。 。 .科技报告导读 新型光场再现三维显示方法和关键器件’’研究 李海峰’邓欢 (I.浙江大学;2.四川大学) 摘 要:该研究在基于光场重构的真三维显示机理研究的基础上,提出了基于光场重构的可探入式真三维显示方法;完成了基于 空间光场拼接的光场再现三维显示方法原理验证,初步构建了基于光场拼接的三维显示系统,并进行了光场拼接校正以及亮度均 匀性校正的验证实验。研制了用于三维显示的基于三片式DMD的彩色高速投影机,构建了基于高速投影机的可探入式光场三维显 示原理验证系统,实现了360。的可探入三维光场显示。完成了集成成像光场再现三维显示机理的研究,并基于该显示机理提出了 无摩尔条纹的倾斜微图像阵列的生成方法;建立了集成成像光场记录和光场再现的理论模型,并开发了集成成像立体视频制作 软件和播放器;建立了徽透镜结构参数与再现三维光场各参数间的数理关系,以及相互问的制约关系;初步研制了液体微透镜 阵列器件。 关键词:可探入显示 光场扫描 光场拼接 集成成像 光场记录 光场再现 Annual Report of‘‘New Methods and Key Elements for Light Field Reconstruction 3D Display’’ Li Haifeng’Deng Huan (1.Zhejiang University=2.Sichuan University) Abstract:This year,we have completed the research for latest international progresses related to the project subjects.Based on the theory of the light field reconstruction true 3D display,two methods of touchable lighl field 3D display ale proposed.First we have verified the principle of the light field reconstruction method based on the light field stitching,and Set up a demonstration system. We proposed an automatic geometriccalibrations method based on CCD camera and improved the fineness of splicing and imaging quality. Besides,we set up a high speed color DLP projector using 3 DMD devices.Using this projector,we set up a touchable light field display verification system,which has the view zone of 360 degrees.We analyzed the mechanism of integral imaging light field 3D display,and proposed a moir6--reduced integral imaging display method by tilting the elemental image array based oil such mechanism. We also established a theoretical model for integral imaging light field pickup and display, and developed a 3D vide0一prOducing software and a 3D video player for integral imaging.We analy’zed the mathematical relationships between the parameters of the reconstructed light field and the micro-lens array,as well as the restrictive correlations between them.We also preliminarily developed a liquid micro--lens array device. Key Words:Touchable display;Light field scanningl Light field spitcing{Integral imagingl Light field recordingl Light field reconstruction 阅读全文链接(需实名注册):http://www.nstrs.cn/xiangxiBG.aspx?id=48307&flag=l 触觉记忆D S T M任务中感觉一运动整合的 信息表征研究 张长水’周永迪 王立平 库逸轩 梁健’鲁害 (1。清华大学:2.华东师范大学) 摘 要:大脑神经信号(如神经元放电信号,局部电位信号)的解析是现在神经科学、认知科学等学科的重要研究领域。对脑部 信号的解析将会帮助我们了解大脑的鳊码.解码方式,进而设计出多样的脑机交互接口,并有可能应用到工业生产,医疗器械等方 1 66 科技创新导报Science and Technology Innovation Herald 201 6 N0.1 2科技报告导读 Science and Technology Innovation Herald团圆 圈●■■瞄■崔重 ●i|1 一 面。斌文的研究由课题一提供猴脑信号数据,由课题三对数据进行了整理,并使用机器学习的方法对数据进行了一定的分析,比 如:根据数据本身的特征进行了简单的分类;观察了数据的相关性;利用特异神经元的性质尝试设计分类器,通过猴脑信号对实 验类型进行一定的预测。 关键词:脑机接口 神经解码行为选择 Research on Information RepresentatiOn of Perception and Motion in Touch Memory DSTM Task—Ordinary Report Zhang Changshui’Zhou Yongdi Wang Liping Ku Yixuan Liang Jian’Lu Rut (1.Tsinghua University;2.East China Normal University) Abstract:Decoding of the brain neural signals(such as the spike signals and the local field potentia1)is an important field of the neuroscience and cognitive science.The analysis of brain neural signals will help us understand the brain’s encoding and decoding principles better,and then design a variety of brain--machine interfaces.This research may be finally applled to industrial production, medical equipment and other aspects.The research is based 0n the data provided by Project One,and the data analysis is provided by Project Three by using machine learning methods.Machine learning methods include simple clustering of data,computing correlation of the data from different parts of the cortex,making use of the nature of the specific neurons to design classifiers,in order to predict the pattern of experiment trials through monkey brain signals Key Words:Brain--machine interface;Neural decodingl Behavioral choice 阅读全文链接(需实名注册):http://www.nstrs.cn/xiangxiBG.aspx?id=48280&flag=l 猴子PMd区脑电解码抓握手势及机械手实时控制 郑筱祥王怡雯张韶岷张巧生 (浙江大学) 摘 要:过去的10年,脑机接口中对上肢有关的仲解码取得了非常大的成功,这给残障人士运动康复带来了希望。但与日常生活 息惠相关的手部的抓握动作的研究却很少涉及。当前,在解码手势方面有很多初步的工作,但是实时的抓握手势的解码工作还 没有被系统地研究过。该研究首先建立了基于非人灵长类动物的植入式脑机接i:z平台,训练猕猴完成仲抓动作并记录PMdN的 神经信号。通过FKNN算法异步解码出4种抓握手势和休息状态。然后,利用共享控制策略驱动灵巧的机械手完成与猴手相同的 动作。结果表明大部分PMdI ̄的神经元对伸抓动作具有调和特性,利 ̄PMdN的神经元的解码正确率可以达到97.1%。在线控制 模式中,猴子手的瞬时状态能够被成功解码出来并用于机械手的控制,正确率可以达到85.1%。我们的研究为残疾人士抓握运动 的康复提供了新的思路和方法。 关键词:抓握解码 运动皮层 假肢手控制 实时 脑机接口 Decoding Grasp Movement from Monkey Premotor Cortex for Real-time Prothetic Hand CentreI Zheng Xiaoxiang Wang Yiwen Zhang Shaomin Zhang Qiaosheng (Zhejiang University) Abstract:Brain machine interfaces(BMIs)have demonstrated lots of successful arm--related reach decoding in past decades,which provide 科技创新导报Science and Technology Innovation Herald 1 67 

因篇幅问题不能全部显示,请点此查看更多更全内容

Top