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Multi-aperture multi-band high-resolution-ratio imaging device and method

An imaging device and high-resolution technology, applied in the field of image processing, can solve the problems of high cost, inability to generate super-resolution images, and small field of view of single-channel imaging systems, so as to save imaging pixels and reduce false alarms Probability, overcome the effect of small field of view angle

Active Publication Date: 2014-11-26
XIDIAN UNIV
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Problems solved by technology

This method solves the problem of expensive infrared imaging in the prior art. However, the disadvantage of this method is that the single-channel imaging system has a small field of view and cannot generate super-resolution images in a large field of view.

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Embodiment

[0031] 1. Multi-aperture sub-band high-resolution imaging device

[0032] refer to figure 1 , the device of the present invention includes two parts, a Cassegrain optical system, and a multi-aperture sub-wavelength imaging device.

[0033] The Cassegrain optical system consists of: figure 1 It can be seen that the entire Cassegrain optical system is composed of the primary mirror 2 of the Cassegrain telescope and the secondary mirror 1 of the Cassegrain telescope. The primary mirror 2 of the Cassegrain telescope is a parabolic mirror with an opening in the center, and the secondary mirror 1 of the Cassegrain telescope is a hyperboloid mirror. The focus of the parabola coincides. figure 1 Among them, F1' is the focus of the parabolic primary reflector, and F' is the focus of the hyperboloid secondary reflector. The incident parallel light is reflected by the primary mirror 2 of the Cassegrain telescope to form a converging light beam, which is then reflected by the secondar...

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Abstract

The invention discloses a multi-aperture multi-band high-resolution-ratio imaging device and method. The device comprises a Cassegrain optical system and a multi-aperture multi-band imaging device. The Cassegrain optical system is composed of a primary mirror of a Cassegrain telescope and a secondary mirror of the Cassegrain telescope. The multi-aperture multi-band imaging device comprise a square visible light CCD detector array, a square short wave infrared CCD detector array, a square medium wave infrared CCD detector array, a square long wave infrared CCD detector array, four lenses corresponding to visible lights, short wave infrared rays, medium wave infrared rays and long wave infrared rays, a focal plane coding module and a light insulation baffle, wherein the four CCD detector arrays are equal in size. The multi-aperture multi-band high-resolution-ratio imaging device and method overcome the difficulties encountered when a single-band infrared image is used for detecting a small target in the prior art, and reduce the false alarm probability in small target detection. The multi-aperture multi-band high-resolution-ratio imaging device and method have the advantages of having ultrahigh-resolution-ratio imaging capacity and saving imaging pixels and effectively overcome the common defect that the field of view is small.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a multi-aperture sub-band high-resolution imaging device and an imaging method thereof. Background technique [0002] Traditional single-channel infrared imaging seekers generally have defects such as small field of view, low resolution, and single imaging band, and it is difficult to achieve multi-band and miniaturization. This has caused a great obstacle to the goal of achieving an infrared imaging system with high resolution, wide field of view, multi-band, miniaturization, and good detection and tracking capabilities. [0003] Harbin Institute of Technology disclosed a large field of view imaging method using a spherical imaging device in its patent application "Spherical Imaging Device and Imaging Method" (Application No. 201001173948.9, Publication No. CN101867709A). The spherical imaging device sampled by this method is composed of a photoelectric conversion unit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/33H04N5/91
Inventor 王晓蕊李政袁影陈业朝吴颖霞王小兵袁宏学
Owner XIDIAN UNIV
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