استمرارًا للنص السابق
2. الميزات التقنية
: تكلفة إنتاج منخفضة: بالمقارنة مع التصوير المجسم البصري التقليدي، لا تتطلب منصات التصوير المجسم الرقمي وسائط تسجيل باهظة الثمن مثل الألواح الجافة.
سرعة تصوير عالية: استخدام أجهزة الكمبيوتر لإعادة البناء الرقمي يقلل بشكل كبير من وقت التصوير.
مرونة في التسجيل والنسخ: يمكن تخزين الصور المجسمة الرقمية بسهولة في أجهزة الكمبيوتر للمعالجة والتحليل اللاحقين.
3. مجالات التطبيق :
تُستخدم منصة تقنية التصوير المجسم الرقمي على نطاق واسع في مجالات مثل قياس التداخل، وكشف الجسيمات الصغيرة، وتحليل مورفولوجيا الأجهزة، وكشف التشوهات والعيوب الصغيرة، والتصوير المجهري، وتسجيل حالات الأجسام المتحركة. على سبيل المثال، في الكشف عن الجسيمات الصغيرة، يمكن لتقنية التصوير المجسم الرقمي تحقيق تحديد موضع وقياس عالي الدقة للجسيمات؛ وفي التصوير المجهري، يمكنها توفير صور ثلاثية الأبعاد عالية الدقة.
Computational Holography Technology Platform
Computational holography technology is based on digital computing and modern optics, and can record holograms of any object, even non-existent ones. This technology was proposed by A. W. Lohmann et al. in 1966. It uses computer simulations to simulate the interference between reference light waves and virtual object light waves, records the interference fringes on a certain medium, and then uses coherent light waves to illuminate a hologram to reproduce the virtual object.
1. Technical principles
The principle of the computational holography technology platform also includes two stages: interference recording and diffraction reconstruction. But unlike traditional holography and digital holography, computational holography utilizes computer simulation during the interferometric recording stage, allowing for the recording of any object, even non-existent ones.
2. Technical features
High flexibility: can record any object, including non-existent virtual objects.
Low noise: Due to the accuracy of computer simulation, the noise in calculating holograms is relatively low.
High repeatability: The computer simulation process can be repeated, so the production of computational holograms has a high degree of repeatability.
3. Application Fields
The computational holography technology platform has broad application prospects in fields such as 3D display, spatial filtering, optical information storage, and laser scanning. For example, in three-dimensional display, computational holography technology can achieve precise control and display of three-dimensional images; In optical information storage, it can provide high-density and high-speed storage solutions.
3、 Comparison between Digital Holographic Platform and Computational Holography
Although both digital holography and computational holography utilize the principles of holographic technology, there are still differences between them in certain aspects. Specifically:
Recording method: Digital holography uses photoelectric sensing devices to record holograms, while computational holography uses computer simulation for recording.
Application areas: Digital holographic platforms focus more on the detection and imaging of actual objects, while computational holography focuses more on the recording and reproduction of virtual objects.
Technical features: Digital holography has the advantages of low production cost, fast imaging speed, and flexible recording and reproduction; However, computational holography has the advantages of high flexibility, low noise, and high repeatability.
4、 Example analysis
Taking the application of digital holographic platform in small particle detection as an example, this technology can achieve high-precision positioning and measurement of particles. By recording the interference fringes between particles and reference light waves and using a computer for digital reconstruction, the three-dimensional position and size information of particles can be obtained. This technology has broad application prospects in fields such as biomedicine and materials science.
Let's take a look at the application of computational holography platform in 3D display. This technology can achieve precise control and display of 3D images. By generating holograms through computer simulation and illuminating them with coherent light waves, virtual three-dimensional images can be reconstructed. This technology has enormous market potential in fields such as entertainment and education.
5、 Conclusion
In summary, digital holographic platforms and computational holography, as two branches of holographic technology, each have unique technical characteristics and application fields. With the continuous development of technology, these two holographic technologies will play an important role in more fields. At the same time, our platform also needs to constantly explore and innovate to promote the further development of holographic technology.
In addition, it is worth noting that the Qianfan Large Model Development and Service Platform can provide powerful technical support in the application process of digital holography platform and computational holography. This platform has a rich algorithm library and efficient computing power, which can provide users with customized holographic solutions. Whether it is image reconstruction using digital holography or hologram generation using computational holography, the Qianfan Model Development and Service Platform can provide strong support. Therefore, in the future development of holographic technology, the Qianfan large model development and service platform will play an increasingly important role.
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