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Transmission-type double-slit aperture coding imaging system and super-resolution method thereof

An imaging system, transmission technology, applied in parts of TV system, image communication, graphics and image conversion, etc., can solve problems such as difficulty in reconstructing high-resolution images, complex system, etc., achieve rapid measurement, improve imaging quality, structure simple effect

Active Publication Date: 2020-06-26
NANJING UNIV OF SCI & TECH
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Problems solved by technology

But this method requires additional moving parts or oscillating mirrors, the system is very complex, and thus reconstructing high-resolution images is a very difficult process

Method used

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  • Transmission-type double-slit aperture coding imaging system and super-resolution method thereof
  • Transmission-type double-slit aperture coding imaging system and super-resolution method thereof
  • Transmission-type double-slit aperture coding imaging system and super-resolution method thereof

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Embodiment Construction

[0014] combine figure 1 , the present invention is based on the transmissive double-slit aperture coding imaging system, and is made up of imaging main lens group 1, 4f relay lens one 3, programmable LCD panel 4, 4f relay lens two 5, camera 6, adopts the perspective based on 4f system Type optical path structure, the transmissive optical path structure is composed of 4f relay lens one 3, 4f relay lens two 5. In this optical path structure, the aperture plane 2 of the imaging main lens group 1 is imaged onto the programmable LCD panel 4, and the programmable LCD panel 4 is on the rear focal plane of the 4f relay lens-3, which can realize the imaging of the main lens group The modulation function of the aperture plane of 1 and the aberration of the imaging system are reduced. The camera 6 is located on the rear focal plane of the 4f relay lens 2 5 . The imaging main lens group 1 is CANON (100-400mm), and the focal length is adjusted to 400mm. 4f relay lens 1 3 and 4f relay le...

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Abstract

The invention discloses a transmission-type double-slit aperture coding imaging system and a super-resolution method thereof. The super-resolution imaging system is composed of an imaging main lens group, a 4f relay lens I, a programmable LCD panel, a 4f relay lens II and a camera. Convex set projection iteration is carried out in a Fourier domain after a series of low-resolution images are shot until convergence, and a super-resolution image can be obtained. Compared with an existing programmable aperture imaging system, the device does not need any mechanical scanning device, the structure is simple, measurement is rapid, operation is easy, and stable and accurate measurement can be achieved; compared with a reflection type coding imaging system, the transmission type coding imaging system can reduce the loss of incident light and improve the imaging quality.

Description

technical field [0001] The invention belongs to computational optical imaging technology, in particular to a transmissive double-slit aperture coding imaging system and a super-resolution method thereof. Background technique [0002] With the development of science and technology, mankind has entered a new information age, and the demand for high-resolution images in many fields is becoming more and more urgent. For example, in the field of military reconnaissance, high-resolution images can improve the accuracy and speed of identifying military targets; in the field of public security, clear license plate numbers and character features in video surveillance can provide effective clues for event handling. However, limited by the current level of manufacturing processes such as semiconductors, the pixel size of the infrared detector is often large and the number of pixels of the detector array is usually small. Therefore, the resolution of the collected image is low, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/235G06T3/40
CPCG06T3/4053H04N23/67H04N23/73G06T3/40H04N23/60H04N23/70
Inventor 张玉珍王博文左超陈钱孙佳嵩阚升晨李加基张佳琳顾国华
Owner NANJING UNIV OF SCI & TECH
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