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A tdi CCD focal plane encoding super-resolution imaging device and method

A super-resolution, focal plane technology, applied in the field of image processing, can solve the problems of large pixel size and small scale, and achieve the effect of increasing the sampling frequency, reducing the aliasing effect, and overcoming the limitations of the system resolution.

Active Publication Date: 2017-08-25
XIDIAN UNIV
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Problems solved by technology

Although optical imaging technology has made great progress, due to the limitations of the detector manufacturing process, working conditions, power consumption and other factors, the commonly used optical detector arrays are small in scale and large in pixel size, which is not enough to deal with human Growing demand for imaging resolution

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  • A tdi CCD focal plane encoding super-resolution imaging device and method
  • A tdi CCD focal plane encoding super-resolution imaging device and method
  • A tdi CCD focal plane encoding super-resolution imaging device and method

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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0046] Refer to attached figure 1 , The device of the present invention includes an off-axis three-mirror optical system, a TDI CCD coupling coding template, an optical TDI CCD detector and an image reconstruction module.

[0047] The off-axis three-mirror optical system is used to control the incident light of the observation scene, and make the light reach the TDI CCD coupling coding template for spatial modulation.

[0048] The TDI CCD coupling coding template is used to spatially modulate the light entering the off-axis three-mirror optical system, and make the light reach the optical TDI CCD detector array for low-resolution imaging.

[0049] The optical TDI CCD detector is used to convert the optical signal modulated by the TDI CCD coupling coding template into an electrical signal.

[0050] The image reconstruction module is used to preprocess the el...

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Abstract

The invention discloses a super-resolution optical imaging device based on TDI CCD focal plane coding. The device comprises an off-axis three-mirror optical system, a TDI CCD coupling and coding template, an optical TDI CCD detector and an image reconstruction module. The invention further discloses a super-resolution optical imaging method based on TDI CCD focal plane coding. The method comprises the steps of setting a focal plane array of the optical TDI CCD detector, setting the TDI CCD coupling and coding template, acquiring four low-resolution coded image arrays of the same scene, conducting image pre-processing and conducting super-resolution image reconstruction. By the adoption of the super-resolution optical imaging device and method based on TDI CCD focal plane coding, more information of a target scene can be captured, super-resolution imaging capacity can be improved, sampling frequency can be improved, and the confounding effect is weakened.

Description

technical field [0001] The invention relates to image acquisition and reconstruction in the technical field of super-resolution image imaging, in particular to a super-resolution optical imaging device and method based on TDI CCD focal plane encoding, belonging to the technical field of image processing. Background technique [0002] Super-resolution optical imaging has great demands in various fields, such as space remote sensing, target recognition and tracking, etc. Although optical imaging technology has made great progress, due to the limitations of the detector manufacturing process, working conditions, power consumption and other factors, the commonly used optical detector arrays are small in scale and large in pixel size, which is not enough to deal with human Growing demand for imaging resolution. [0003] Existing super-resolution imaging methods mainly include traditional micro-scanning technology and sub-pixel stitching technology. Micro-scanning can be regarde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/372H04N5/369
Inventor 王晓蕊董凯旋袁影刘朝枢吴颖霞王小兵袁宏学
Owner XIDIAN UNIV
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