Light field imaging device and method based on digital coding control

A technology of digital coding and light field imaging, applied in image communication, components of color TVs, components of TV systems, etc. The effect of angular resolution, guaranteed spatial resolution, increased flexibility and imaging quality

Active Publication Date: 2013-08-07
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this F-number matching requirement will limit the aperture size of the main lens and reduce the flexibility of the imaging device.
At the same time, under normal circumstances, the F number of the microlens is relatively larg...

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  • Light field imaging device and method based on digital coding control
  • Light field imaging device and method based on digital coding control
  • Light field imaging device and method based on digital coding control

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0027] figure 1 A structural block diagram of a light field imaging device based on digital code control provided by the present invention. Such as figure 1 As shown, the light field imaging device provided by the present invention includes:

[0028] main lens 101;

[0029] digital coding element 102;

[0030] microlens array 103;

[0031] sensor 104;

[0032] logic control unit 105 .

[0033] Among them, the main lens 101 is used to converge the object beam; the digital encoding element 102 uses a DMD digital micromirror chip to digitally modulate the incident light; the microlens array 103 is composed of several plano-convex microlens units, used to extract Light field information; sensor 104 adopts COMS or CCD i...

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Abstract

The invention discloses a light field imaging device based on digital coding control. The light field imaging device comprises a main lens, a digital coding element, a micro-lens array, a sensor and a logic control unit, wherein the main lens is used for converging object space light beams, the digital coding element is used for digital modulation of incident light, the micro-lens array is used for extracting light field information, the senor is used for forming light field images, and the logic control unit is used for controlling the sensor and the digital coding element. By the aid of digital modulating action of the digital coding unit on the incident light, limit of traditional light field imaging to F number matching requirement of the main lens is broken through. Angular resolution of light field imaging is improved while spatial resolution of light field images is also guaranteed, and light field imaging application flexibility and imaging quality are improved beneficially.

Description

technical field [0001] The invention relates to the technical fields of optical engineering, computer graphics, computer vision, etc., and in particular to a light field imaging device and method based on digital code control. Background technique [0002] Light field imaging is an important branch of computational imaging. Traditional imaging devices follow the imaging principle of directly acquiring two-dimensional image information with imaging lenses and photosensitive film. Computational imaging uses non-imaging optical devices to replace some traditional imaging optical devices. The new information that cannot be provided by image sensing jumps out of the constraints of the traditional image sensor's self-contained architecture, and provides richer information for image reconstruction. Computational imaging, derived from machine vision, image processing, computer graphics, and applied optics, offloads certain parts of the imaging task from an imaging setup to a comput...

Claims

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Application Information

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IPC IPC(8): H04N5/225
Inventor 谭铁牛孙哲南侯广琦秦娅楠
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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