Light field camera

A light field camera and lens technology, applied in optics, optical components, nonlinear optics, etc., can solve the problems of blurry and poor quality of captured pictures

Active Publication Date: 2015-04-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0008] An embodiment of the present invention provides a light field camera, which is used to solve the problems

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Embodiment Construction

[0040] In order to solve the problem that the light field camera in the prior art uses a wide-angle lens to take pictures that are blurry and poor in quality, in the embodiment of the present invention, two kinds of light field cameras are proposed. In one of the solutions, due to the curved The curved shape of the microlens array and the curved shape of the curved image sensor are the same as the curved shape of the virtual image plane of the wide-angle main lens, and the reciprocal of the vertical distance between the curved microlens array and the curved image sensor is the same as that of the curved image sensor. The sum of the reciprocals of the vertical distances between the microlens array and the virtual image plane of the wide-angle main lens is equal to the reciprocal of the focal length of the curved microlens array, thus solving the blurred pictures that exist when the light field camera uses a wide-angle lens to shoot , the problem of poor quality; in another schem...

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Abstract

The present invention relates to the technical field of image pickup processing, and disclosed is a light field camera. The bending shape of a bending type micro lens array and the bending shape of a bending type image sensor are both the same as that of a virtual image surface of a wide-angle master lens. The sum of the reciprocal of the vertical distance between the bending type micro lens array and the bending type image sensor and the reciprocal of the vertical distance between the bending type micro lens array and the virtual image surface of the wide-angle master lens is equal to the reciprocal of the focal distance of the bending type micro lens array. The present invention solves the problem of the deterioration in image quality, such as blurring and distortion, caused by the fact that a flat plate type micro lens array and a flat plate type image sensor cannot mate with a bent virtual image surface of a wide-angle master lens when a light field camera adopts the wide-angle master lens.

Description

technical field [0001] The invention relates to the technical field of image capture and processing, in particular to a light field camera. Background technique [0002] Light field camera is a new type of imaging device that can simultaneously record light intensity information and depth information of an object (that is, complete light field information), and is widely used due to its advantages such as digital refocusing. At present, a light field camera mainly includes five parts: a main lens 1, a flat microlens array 2, a flat image sensor 3, an image processor 3, a driver 4 and a controller 5, specifically as Figure 1A shown. [0003] The main lens 1 of the light field camera is generally a non-wide-angle lens, and the non-wide-angle main lens 1 images the object to be photographed, and the surface where the imaging is located is the image plane of the non-wide-angle main lens 1 (such as Figure 1A surface a shown in ), the image plane of the non-wide-angle main lens ...

Claims

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Application Information

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IPC IPC(8): H04N5/232G02B13/06
CPCH01L27/14607H01L27/14625G02B27/0075G02F1/133526G02F2203/12G02B3/0037G02F1/294H04N23/957H04N23/54H04N23/00H04N23/698G02F1/135
Inventor 徐晶赵聪
Owner HUAWEI TECH CO LTD
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