搜索结果: 61-75 共查到“信息光学”相关记录194条 . 查询时间(2.454 秒)
以光学调制度模型和归一化互相关模型为基础，以模板匹配和光学调制度双重判据为核心算法，研究了微光像增强器分辨力的客观评价方法，构建了微光像增强器分辨力客观评价系统。光学调制度模型和归一化互相关模型既互相独立又相辅相成。首先，利用归一化互相关模型中的模板匹配系数进行定位和初步评价； 然后，用光学调制度模型进行定量分析。这种先定性后定量的图像处理模式提高了微光像增强器分辨力测量的准确性和重复性，实现了对...
第二届“光化学转换与功能材料”学术研讨会暨重点实验室年会召开
光化学转换 功能材料
2012/8/15
2012年8月7日至11日，中国科学院光化学转换与功能材料重点实验室组织召开第二届“光化学转换与功能材料”学术研讨会暨重点实验室年会。理化所所长张丽萍、党委书记兼副所长黄勇、副所长兼重点实验室主任汪鹏飞、所职能部门负责人以及重点实验室学术骨干、职工等参加会议。中科院相关领导出席了本次会议。
利用反射全息实现计算全息三维显示
计算全息 菲涅耳全息图 三维显示 反射全息
2012/12/12
计算全息和光学全息都可应用于三维显示,但各有自己的优势和缺陷.将计算全息和光学反射全息相结合,可以突破光学全息对记录物体的限制,进行虚拟物体或自然场景的全息图的制作,同时可以实现白光再现.本文首先用三维扫描仪获得实际物体的三维数据,用"点云算法"模拟得到其菲涅耳全息图透射率数据,采用计算全息打印机将其输出于全息记录介质,得到可光学再现的菲涅耳计算全息图H1.然后将H1作为光学全息的记录物体进行反射...
2012年哈尔滨工业大学博士生入学考试光学信息处理考试大纲
主要考试内容：小波变换与分数傅立叶变换
2011年8月1日上午8:30，2011年中国光学学会全息与光信息处理专业委员会和高速摄影与光子学专业委员会年会在我校隆重召开。
利用差分吸收光谱系统得到了大气NO3、NO2和O3的浓度，基于NO3损耗率和温度关系，获得了一种判定NO3对于VOCs的大气氧化能力和清除大气中NOx能力的新指示剂，该指示剂用动力学常量和单萜烯释放速率与温度关系来研究NO3的损耗率．新指示剂应用于研究合肥郊区外场观测的NO3的氧化能力，分析结果表明，在观测期间单萜烯对于NO3的损耗贡献约为70%～80%.
Static isolated horizons: SU(2) invariant phase space, quantization, and black hole entropy
Static isolated horizons invariant phase space quantization black hole entropy
2010/12/20
We study the classical field theoretical formulation of static generic isolated horizons in a man-ifestly SU(2) invariant formulation. We show that the usual classical description requires revision in...
Rindler horizon entropy from nonstationarity
nonstationary metric field configurations horizon de-grees of freedom
2010/12/20
Finite entropy and energy are obtained for the horizon of a Rindler observer on the grounds of the nonstatic character of the geometry be-yond the horizon. Edery - Constantineau prescription is used t...
It has been recently proposed that the interpretation of gravity as an emergent, entropic force
might have nontrivial implications to cosmology. Here two approaches are investigated: in one, the Frie...
Physics from information
Physics from information
2010/12/21
This is an ongoing review on my conjecture that information processing at causal horizons is
the key ingredient of all physics. Assuming that information is fundamental and the information
propagate...
Fast algorithms for computing defects and their derivatives in the Regge calculus
Fast algorithms defects derivatives Regge calculus
2010/12/20
Any practical attempt to solve the Regge equations, these being a large system of non-linear algebraic equations, will almost certainly employ a Newton-Raphson like scheme. In such cases it is essenti...
Hawking Radiation and Entropy from Horizon Degrees of Freedom
Hawking Radiation and Entropy Horizon Degrees of Freedom
2010/12/20
We study the thermodynamic properties of horizons using the dynamical description of the grav-
itational degrees of freedom at a horizon given in [4]. We use the action of the horizon degrees of free...
Temperature-dependent chirped coherent phonon dynamics in Bi$_{2}$Te$_{3}$ using high intensity femtosecond laser pulses
Temperature-dependent chirped coherent phonon dynamics femtosecond laser pulses
2010/11/18
Degenerate pump-probe reflectivity experiments have been performed on a single crystal of
bismuth telluride (Bi2Te3) as a function of sample temperature (3K to 296K) and pump intensity
using ∼...
The phase-shift of isospin-2 pi-pi scattering from lattice QCD
phase-shift isospin-2 pi-pi scattering lattice QCD
2011/1/14
Finite-volume lattice QCD calculations o er the possibility of extracting resonance parameters
from the energy-dependent elastic phase-shift computed using the Luscher technique. In this letter,as a...
Relative information entropy of an inhomogeneous universe
inhomogeneous cosmology gravitational instability large-scale structure of the universe information entropy
2010/12/20
In the context of averaging an inhomogeneous cosmological model, we propose a natural measure identical to the Kullback-Leibler relative information entropy, which expresses the distinguishability of ...