Method and system for obtaining full focal distance image without optical aberration

A technology of image capture and focal length, applied in image communication, components of TV systems, photography, etc., can solve problems such as out-of-focus image blurring, and achieve the effect of improving imaging

Active Publication Date: 2008-07-30
小元感知(无锡)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of out-of-focus image blur and eliminate aberration, the present invention provides a full-focus aberra

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  • Method and system for obtaining full focal distance image without optical aberration
  • Method and system for obtaining full focal distance image without optical aberration
  • Method and system for obtaining full focal distance image without optical aberration

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Example Embodiment

[0058] The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0059] 1. The invention realizes the principle of no aberration at all focal lengths

[0060] Any object distance can be imaged on its conjugate plane, which is characterized by full focus. The image of the conjugate plane and the image of its projection plane (photosensitive plane) have a one-to-one correspondence. Theoretically, this correspondence is a reciprocal causal relationship, so it can be obtained from the blurred image data of the photosensitive plane. The clear virtual image of the conjugate plane can be further mapped to the photosensitive plane again by theoretically extending the direction of the optical center (aberration) projection line of the virtual focused clear image data of the conjugate plane, and deduced the value in the photosensitive plane. Focus on the sharply mapped image.

[0061] From the mathematical point of view, the ...

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Abstract

The invention relates to a full-focus non-aberration image shooting method and system. With the method and system and based on the conditions and imaging principle of linear space, the lens in camera shooting apparatus can acquire degraded image data for images in camera; then, image partition can divide non-blend single object distance regions of single object distance according to the object distance, mix blend regions in a plurality of object distances, and moreover, perform full-focus non-aberration reconstruction, correction and overlapping into one plane for the non-blend single object distance regions and blend region belts; then, full visual field sharp digital images can be gained as well as object distance of all points in the visual field. Since the method and system utilize and realizes the full-focus non-aberration image shooting, the theoretic definition of the captured images can reach the level of complete consistence with that of plane images through optical system focusing, so that the overall images can provide full visual field and full-focus non-aberration sharp images and gain the maximum information volume.

Description

technical field [0001] The present invention relates to the technical field of image capture through focusing characteristics (such as optics, infrared imaging, etc.), and in particular to a method and system for realizing full-focus aberration-free image capture. Background technique [0002] In all aspects of modern society, incoherent light photography has a wide range of applications. As an important modern information carrier, images (photos, videos, etc.) are one of the most important social elements in this era, and their basic function is to record information in the form of images. Due to the limitation of the principle of the traditional camera, the optical imaging is clear within the depth of field, but the image information outside the depth of field is distorted and degraded. The clarity of an image means the amount of information carried by the image. An image with sufficient information, that is, a clear and precise image has always been the goal pursued by i...

Claims

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Application Information

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IPC IPC(8): H04N5/225G03B41/00
Inventor 贾伟
Owner 小元感知(无锡)科技有限公司
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