Camera modules patterned with pi filter groups

An optical filter, camera technology, applied in the direction of graphic image conversion, instrumentation, image analysis, etc., can solve the problem of not being able to determine distance from two images, no pixels, etc.

Active Publication Date: 2015-02-04
FOTONATION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the occlusion of the pixels contained within the dashed line 108 in the second image 102, the distance from the camera to the portion of the scene visible within the dashed line 108 cannot be determined from both images, because in Figure 1A There is no corresponding pixel in the image 100 shown

Method used

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  • Camera modules patterned with pi filter groups
  • Camera modules patterned with pi filter groups
  • Camera modules patterned with pi filter groups

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Embodiment Construction

[0072] Turning now to the drawings, illustrated are systems and methods for patterning an array camera using π filter groups in accordance with embodiments of the present invention. In many embodiments, the camera modules of the array camera are patterned with one or more π filter groups. The term "patterning" here refers to the use of specific color filters in individual cameras within a camera module such that the cameras form a pattern of color channels within the array camera. The term "color channel" or "color camera" may be used to refer to a camera that captures image data within a particular portion of the spectrum, and is not necessarily limited to image data relating to particular colors. For example, a "red color camera" is a camera that captures image data corresponding to (i.e., within those electromagnetic spectrums) electromagnetic waves that humans traditionally perceive It is also similar. In other words, the red color camera may capture image data correspon...

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Abstract

Systems and methods in accordance with embodiments of the invention pattern array camera modules with pi filter groups. In one embodiment, an array camera module includes: an M x N imager array including a plurality of focal planes, where each focal plane includes an array of pixels; an M x N optic array of lens stacks, where each lens stack corresponds to a focal plane, and where each lens stack forms an image of a scene on its corresponding focal plane; where each pairing of a lens stack and focal plane thereby defines a camera; where at least one row in the M x N array of cameras includes at least one red camera, one green camera, and one blue camera; and where at least one column in the M x N array of cameras includes at least one red camera, one green camera, and one blue camera.

Description

technical field [0001] The present invention relates generally to digital cameras, and more particularly to filter patterns utilized in camera modules of array cameras. Background technique [0002] Conventional digital cameras typically include a single focal plane with a lens stack. The focal plane includes the array of light sensitive pixels and is part of the sensor. The lens stack creates an optical tunnel that forms an image of the scene on the array of light sensitive pixels in the focal plane. Each light-sensitive pixel can generate image data based on light incident on that pixel. [0003] In conventional color digital cameras, an array of color filters is typically applied to pixels in the focal plane of the camera's sensor. Typical color filters may include red, green and blue color filters. Given a color filter pattern, a demosaicing algorithm can be used to interpolate a complete set of red, green and blue values ​​for each pixel of the image data captured b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T3/4015H04N5/2258H04N13/0239H04N9/07H04N13/0271H04N13/271H04N13/239H04N23/45H04N25/134H04N23/12H04N2209/048H04N23/13
Inventor S·尼森佐恩K·文卡塔拉曼
Owner FOTONATION LTD
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