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fidrizzle multi-sampling image reconstruction technology

An image reconstruction and multi-sampling technology, applied in image enhancement, image analysis, image data processing, etc., can solve problems such as inferiority

Inactive Publication Date: 2020-01-31
ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it is not as good as iDrizzle at the highest frequency end

Method used

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  • fidrizzle multi-sampling image reconstruction technology

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Embodiment Construction

[0056] We have developed a program software based on FiDrizzle technology in C language. As long as we know some parameters (such as position, rotation, CCD deformation, etc.) of the imaging instrument when taking images, we can reconstruct high-resolution source images and give more detailed information .

[0057] Acknowledgments: This invention is supported by the National 973 Project (No.2015CB857003, No.2015CB857000, No.2013CB834900), the National Foundation Project (No.11333008, No.11233005, No.11273061), the Outstanding Youth Project of Jiangsu Province (No.BK20140050) and the Chinese Academy of Sciences Cosmological Structure Pioneer Project (No.XDB09010000), the inventors hereby express their gratitude to these supporting projects.

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Abstract

FiDrizzle multi-sampling image reconstruction technology is a technical upgrade based on the improved implementation method based on our previous invention patent. It mainly combines the advantages of the fiDrizzle method’s fast calculation and fast convergence speed in the low frequency band and the iDrizzle method’s high fidelity in the high frequency band. The FiDrizzle multi-sampling image reconstruction technology adds low-pass filtering in the frequency domain based on the previous fiDrizzle algorithm, thereby integrating the advantages of the previous two methods. High-resolution images can be reconstructed from low-sampling-rate images quickly and with high fidelity. Therefore, it is widely used in astronomy, microphysics and other fields that have extremely high requirements for image pixel resolution. It is even useful in the fields of microbiology, medicine and digital monitoring.

Description

[0001] September 30, 2019 [0002] 1 technical field [0003] In the field of digital signal communication and image acquisition and processing, data acquisition is through CCD, CMOS and other collectors. These collectors are in principle arrays of photon counters. In other words, it is said that sampling is discrete, and it is impossible to achieve infinitely fine continuous sampling in practice. So there is a sampling rate issue involved here. In addition, due to the diffraction effect of light, it is impossible for any optical instrument and optical band to provide imaging with infinite precision and detail. That is to say, optical instruments all have the highest resolution limit. The purpose of our invention is to superimpose the original low sampling rate image into the image under the highest resolution of the instrument quickly and with high fidelity. [0004] 2 background technology [0005] As mentioned earlier, due to technological limitations and economic cost ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/20024G06T2207/20056G06T5/73
Inventor 王蕾李国亮
Owner ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI