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Method and apparatus for reducing color fringing in composite images

A composite image and color fringing technology, which is applied to color TV components, color TV, image enhancement, etc., can solve problems such as inefficiency and large amount of calculation

Inactive Publication Date: 2018-07-20
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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The technique is computationally intensive and inefficient

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  • Method and apparatus for reducing color fringing in composite images
  • Method and apparatus for reducing color fringing in composite images
  • Method and apparatus for reducing color fringing in composite images

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Embodiment Construction

[0025] This disclosure describes methods and apparatus for recording images using a lens array (eg, an NxN camera array), where various monochromatic lenses within the array each provide imaging data in a shade of a single color. Multiple composite images are recorded, each composite image being recorded using three lenses providing imaging data in three different colors. Color fringing regions are identified in a plurality of composite images, and a defringing algorithm is applied to at least one of the composite images to mitigate color fringing and generate a corrected composite image. For convenience, like reference numbers are used throughout the drawings to refer to like elements.

[0026] figure 1 An example scene 10 , a camera 12 oriented to record an image of the scene, and an intended image 14 of the scene 10 are shown. Scene 10 includes house 16 and tree 18 . Camera 12 includes a lens array 20 that includes a plurality of monochromatic lenses and is operable to r...

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Abstract

Methods and apparatus for recording composite images from lens arrays are disclosed. A first composite image is recorded using a first lens providing imaging data in a first color, a second lens providing imaging data in a second color, and a third lens providing imaging data in a third color, wherein the first color , the second color and the third color are different colors. A second composite image is recorded using the first lens, a fourth lens providing imaging data in the second color, and a fifth lens providing imaging data in a third color. The first composite image and the second composite image are compared to identify color fringed areas. Applying a defringing algorithm to at least one of the composite images based on the relative size and location of the color-banged regions in the first composite image and the second composite image to reduce color fringing in the color-banged regions edging.

Description

technical field [0001] The present disclosure relates to reducing color fringing, and more particularly, to methods for reducing color fringing in composite images recorded using lens arrays. Background technique [0002] Some cameras, such as so-called "light field" or "plenoptic" cameras, utilize arrays of lenses to capture light information for a scene. In some such cameras, different monochromatic lenses are used, each of which registers light in a shade of a given color. For example, adjacent lenses each recording imaging data in a shade of red, green, or blue (RGB) may be used. The imaging data from the RGB lenses can then be combined to form a composite image. Because the RGB lenses are adjacent to each other, they provide imaging data from slightly different vantage points, which can cause color fringing in the recorded composite image. [0003] In the past, disparity estimation and related techniques have been used to address such color fringing. According to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64H04N23/12H04N13/232
CPCH04N13/232H04N13/257H04N23/10H04N23/84H04N25/134G06T5/73G02B27/005G06T5/50H04N9/646
Inventor J·艾尔格D·林纳克J·古斯塔夫森M·温尔松A·约翰逊
Owner SONY CORP