
全息摄影技术
A blind audio watermark embedding algorithm by a holographic technique was proposed.
提出了一种基于数字全息技术的盲音频水印算法。
An information encryption method is proposed based on digital holographic technique and phase retrieve algorithm.
提出了一种基于数字全息技术和相位恢复算法的信息加密方法。
Methods for obtaining multiple fan out clock distribution using polarization holographic technique is also proposed.
文中还提出了用偏振全息术获得多输出端时钟分布的方案。
A holographic technique is investigated for amplitude and phase distributions in the aperture of a phased array antenna by using near field measurements.
研究了一种利用近场测量技术全息成像相控阵天线口径幅相的方法。
Plane waves are usually used as illumination beams during recording and reconstruction processes of the holographic technique for the measurement of particulates.
在测量微粒场的全息技术中,通常采用平面波系统进行记录和再现。
Polarization holographic technique was adopted to fabricate the HOEs. 4 fan out clock distribution has been obtained in primary experiments.
初步实验得到了可作为4输出端时钟分布的全息光学元件。
This paper presents a time-based multi-frame holographic technique, which has many important applications in the research work of the combustion process of I. C. engines.
本文介绍了一种对研究发动机燃烧过程有着重要应用价值的实验技术一时间分幅全息技术。
This paper presents some experimental results of the instantaneous macro-speed of ***sel fuel spray and the micro-speed of droplets in a ***sel fuel spray by using double pulse holographic technique.
本文介绍利用双脉冲激光全息术研究柴油机喷雾油束的宏观运动瞬时速度和喷雾粒子的微观运动速度。
A two-beam multi-exposure holographic technique for fabricating three-dimensional photonic crystals is proposed.
提出用双光束干涉多次曝光的方法实现三维结构光子晶体。
The velocity and flying angle of droplets in water sprays formed by different pressure atomizers were measured by laser holographic technique.
采用激光全息测量技术对两种压力式喷嘴的喷雾液滴速度进行了测量。实验中测量了喷雾场不同区域的液滴速度分布。
The experimental work was carried by using the multi-frame high speed holographic technique.
实验采用的是高速分幅激光全息技术。
Information encryption method based on digital holographic technique and phase retrieve algorithm is proposed.
本文提出了一种基于数字全息技术和相位恢复算法的信息加密方法。
In this motionless holographic technique, light is reflected, or emitted from a 3D object, propagates through a spatial light modulator (SLM), and is recorded by a digital camera.
在这一静态全息技术中,光由三维物体反射或发射,在通过空间光调制器(SLM)后,用数码相机记录。
Based on polynomial-fitting defect feature extraction was proposed for composite materials bonding defects was tested by the laser holographic technique.
提出了一种基于函数拟合的全息检测复合材料粘接缺陷特征提取方法,用于缺陷定量评估。
Liquid dispersion process with a sinusoidally vibrated jet was investigated. The course of deformation and breaking of liquid jet from the nozzle was recorded and stu***d via a holographic technique.
本文提供一种用激光全息照相术观测液体射流破碎、分散历程的方法、设备和实验技术。
In this paper, pseudocolor encoding of 2-D holographic images with a one-step rainbow holographic technique is described.
介绍使用一步彩虹全息法进行二维图象的假彩色编码。
In this paper a study on the laser holographic interferometric technique for measuring the temperature field in combustion chamber is presented.
本文对用激光全息干涉技术测量内燃机燃烧室内温度场进行了研究。
Although the theory of holography is almost perfect, the practical holographic display technique is not even close to what we expect.
尽管全息显示理论已基本趋于完善,但实用全息显示与人们的期望还相差甚远。
A new method to make color transmission hologram is proposed, and the color hologram is reconstructed by use piexlated holographic display technique, and some holograms have been made successfully.
提出一种透射型彩色全息图的拍摄与再现技术,所再现的图象可以突出物体的三维立体感和原有色彩。
This paper analyzes and investigates some main issues of practical process of the volume holographic storage technique.
本文针对体全息技术实用化过程中的主要问题进行了分析与研究。
Holographic interferometry technique plays a very important role in the temperature field measurement with its unique advantage, and is widely applied in the temperature field measurement.
分布式光纤测温是一种用于实时测量空间温度场分布的新兴技术,由于它在测量分布式温度上的独特之处,该技术在油井温度场测量有很好的应用前景。
This study is the first comprehensive and systemic to apply holographic interferometry technique to the study of Aero-optical experiments.
本文的研究是国内首次全面系统地将全息干涉技术应用于气动光学实验研究。
The principle, experimental apparatus, optical system and results of applying laser holographic interferometry technique to visualize three-dimensional(3D) temperature field were presented.
介绍了实时激光全息干涉技术应用于三维温度场可视化的原理、实验装置与光路系统、实验结果等。
At present, the holographic interferometry technique has been widely used in various fields, and this study in aero-optical effects is also becoming the scope of its application.
到现在,全息干涉技术已经广泛地应用在各个领域之中,本研究的气动光学效应也正在成为它的应用范围。
Digital holography is a new holographic imaging technique and has been applied in many fields.
数字全息术是一种新型的全息成像技术,具有广泛的应用范围。
Digital holography is a new holographic imaging technique and can be used as a fast, ****** and robust method, showing important advantages and promising prospect in microstructure testing.
数字全息术作为一种新型的全息成像技术,将光学全息术、固体摄像器件与数字图像处理技术相结合,在微结构测量领域有着广阔的应用前景。
全息技术(holographic technique)是一种基于光学干涉和衍射原理的三维成像技术,能够完整记录并再现物体的振幅、相位和波长信息,形成具有立体感的图像。该技术由物理学家丹尼斯·加博尔于1948年提出,并于1960年代激光器的发明后得到实际应用(来源:Encyclopædia Britannica)。
干涉记录与衍射再现
全息技术通过将物体反射的激光(物光)与参考激光束叠加形成干涉条纹,记录在感光介质上。再现时,用相同波长的光照射全息图,通过衍射还原三维影像(来源:Optical Society of America)。
医学成像与生物检测
例如全息显微镜可观察活体细胞的三维动态,提升疾病诊断精度。2023年《自然》子刊报道了基于全息技术的高分辨率血流成像系统(来源:Nature Photonics)。
数据存储与安全防伪
全息存储利用三维空间记录数据,单张光盘容量可达TB级。此外,全息标签被广泛用于货币、奢侈品防伪,如欧洲央行在欧元纸币中嵌入了全息安全线(来源:IEEE Xplore)。
“holographic technique”是由“holographic”(全息的)和“technique”(技术/方法)组成的术语,指基于全息原理实现三维成像或信息记录的技术方法。以下是详细解释:
holographic technique是一种基于光学干涉与衍射的三维成像方法,核心在于记录和重建光波信息,目前主要应用于科研、精密制造和特定展示场景。
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