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Hybrid optical field camera device based on microlens array

A technology of microlens array and light field camera, applied in optics, optical components, television, etc., can solve the problem of sacrificing angular resolution and so on

Inactive Publication Date: 2018-09-14
BEIJING INST OF TECH SHENZHEN RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can obtain higher spatial resolution than traditional light field cameras, it is at the expense of its angular resolution.

Method used

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  • Hybrid optical field camera device based on microlens array
  • Hybrid optical field camera device based on microlens array
  • Hybrid optical field camera device based on microlens array

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the drawings and specific embodiments. It should be noted that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0021] Combine figure 1 , The present invention is a hybrid light field camera device based on a microlens array, which includes a front optical system 1, a light field sensor 2, a main processor circuit board 3, and a zoom control sensor 4. Among them, the front optical system 1 is focused by the zoom control sensor 4 to realize the switching between the non-focus imaging mode and the focused imaging mode.

[0022] The front optical system 1 is an optical zoom lens composed of two or more lens groups and a diaphragm, and the type of the optical zoom lens can be negative-negative, negative-positive or positive-negative-positive The light field sensor 2 consists of a micro lens array 5 and a charge coup...

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Abstract

The invention discloses a hybrid optical field camera device based on a microlens array. The hybrid optical field camera device comprises a front optical system, an optical field sensor, a main processor circuit board and a zoom control sensor. The front optical system is an optical zoom lens composed of two or more lens groups and diaphragm. The optical field sensor is composed of the microlens array and a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) sensor. A focal length of the front optical system is changed through the zoom control sensor, and depth images in non-focusing and focusing imaging modes are obtained; the images obtained in the two imaging modes are processed through the main processor circuit board; and the images with high resolution andlarge depth of field are obtained.

Description

Technical field [0001] The invention belongs to the technical field of computational optical imaging, and specifically relates to a hybrid light field camera device based on a microlens array. Background technique [0002] The two-dimensional picture of the traditional camera is a mapping of the three-dimensional scene, and each point on the image is the integral of the light hemisphere of that point, so the direction information of the light is lost. In contrast, light-field imaging technology not only records the brightness of a spatial location, but also distinguishes the direction of light. According to the light field information, multiple applications such as refocusing, viewpoint transformation, and depth estimation can be realized. [0003] In 1996, Ren Ng and Marc Levoy, who were also studying for Ph.D. degrees in Stanford, produced for the first time a light-field camera based on Contax645, equipped with a micro lens in front of the imaging pixels, and focusing light thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232G02B15/00
CPCG02B15/00H04N23/54H04N23/50H04N23/55H04N23/67H04N23/951
Inventor 程灏波陈欣冯云鹏
Owner BEIJING INST OF TECH SHENZHEN RES INST
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