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Imaging method and imaging device of microlens array

A technology of a microlens array and an imaging method, which can be used in image communication, parts of color TVs, parts of TV systems, etc., and can solve problems such as uneven brightness distribution

Active Publication Date: 2019-12-06
SUPERD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above technical problems, the present invention provides an imaging method and an imaging device of a microlens array, which solves the problem of uneven brightness distribution in the original image formed by the microlens array, improves the quality of the original image, and reduces the impact on the image formed by the microlens. Difficulty doing matching and splicing

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  • Imaging method and imaging device of microlens array
  • Imaging method and imaging device of microlens array
  • Imaging method and imaging device of microlens array

Examples

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no. 1 example

[0089] see figure 1 , the figure shows the flow chart of the imaging method of the microlens array in the first embodiment, the method can be applied to light field cameras, compound eye cameras and microscopic imaging systems with large fields of view, and the specific steps included in the method are as follows:

[0090] Step S101 , photographing an actual scene through a microlens array to obtain an original scene image.

[0091] Specifically, a microlens array is used to shoot an actual scene to obtain an original scene image. The original scene image refers to an image acquired during actual scene shooting. If the actual scene is photographed by the microlens array in the existing way, there is a phenomenon that the center is bright and the periphery is dark in the image formed by each microlens.

[0092] Step S103, performing pixel-by-pixel brightness matching on the original scene image and at least two pre-stored lighting calibration images to obtain a scene lighting...

no. 2 example

[0098] see figure 2 , the figure shows the flow chart of the imaging method of the microlens array in the second embodiment. This method can be applied to light field cameras, compound eye cameras and microscopic imaging systems with large fields of view. The specific steps included in the method are as follows:

[0099] Step S201, acquiring at least two illumination calibration images.

[0100] Specifically, through the microlens array, under the same exposure time and the same image sensor configuration, at least two illumination calibration images are obtained for a uniform light source with gradually changing illumination intensity; at least two illumination calibration images are stored in the storage device , enter step S205.

[0101] Step S203 , shoot the actual scene through the microlens array to obtain the original scene image, and proceed to step S205 .

[0102] Specifically, a microlens array is used to shoot an actual scene to obtain an original scene image. T...

no. 3 example

[0116] see image 3 , the flow chart of the imaging method of the microlens array in the third embodiment is shown in the figure, and the specific steps are as follows:

[0117] Step S301, calibration of illumination brightness, and then proceed to step S305.

[0118] Specifically, using a microlens array, under the same exposure time and the same image sensor configuration, a series of illumination images are obtained for a uniform light source with gradually changing illumination intensity, which is used to correct uneven brightness during actual shooting; this step can When the microlens array is finalized, a series of illumination calibration images acquired (such as the first illumination calibration image, the second illumination calibration image, the third illumination calibration image and the fourth illumination calibration image) are stored in the storage device. The original scene image is used for brightness matching, and there is no need to perform this step aga...

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Abstract

The present invention provides an imaging method and an imaging device of a microlens array, wherein the imaging method includes: photographing an actual scene through a microlens array to obtain an original scene image; combining the original scene image with at least two pre-stored illumination The calibration images are respectively subjected to pixel-by-pixel brightness matching to obtain scene illumination images corresponding to the actual scene, wherein the at least two illumination calibration images are grayscale images with different brightness; The original scene image is subjected to brightness uniformization processing to obtain a scene image with uniform brightness. Solve the problem of uneven brightness distribution in the original image formed by the microlens array, improve the quality of the original image, and reduce the difficulty of matching and splicing the image formed by the microlens array.

Description

technical field [0001] The invention relates to the field of imaging technology, in particular to an imaging method and an imaging device of a microlens array. Background technique [0002] Microlens arrays are widely used in light field cameras, compound eye cameras, and microscopic cameras with large fields of view. However, due to the fluctuation of light, each microlens image will appear bright in the middle and dark in the surrounding. This will cause serious interference to the subsequent processing of microlens array imaging (whether it is matching two microlens images or splicing multiple microlens images). Contents of the invention [0003] In view of the above technical problems, the present invention provides an imaging method and an imaging device of a microlens array, which solves the problem of uneven brightness distribution in the original image formed by the microlens array, improves the quality of the original image, and reduces the impact on the image fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235H04N9/04
CPCH04N23/73H04N23/74H04N23/10
Inventor 杨青郁树达
Owner SUPERD CO LTD
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