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Improved array of scanning sensors

An image sensor and array technology, applied in the field of image capture, can solve problems such as complex stitching

Active Publication Date: 2015-02-25
MICROSOFT TECH LICENSING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Artifacts also complicate stitching together overlapping regions of the image data from the first and second image sensors in the presence of potentially moving images in the frame

Method used

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  • Improved array of scanning sensors
  • Improved array of scanning sensors
  • Improved array of scanning sensors

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Embodiment Construction

[0023] The following figures illustrate examples of techniques for image capture and image processing, or embodiments of exemplary systems in which the techniques may be used. The image capture system may include one or more image sensors within one camera unit, or the image sensors may be in different camera units positioned such that all image sensors together acquire the composite scene. Each individual sensor may capture a portion of a scene - referred to herein as a Field of View (FOV). As explained below, different image sensors may be arranged in different configurations, but image sensors capturing adjacent field-of-view segments share an overlapping region in which two field-of-view segments cover the same spatial region of the scene .

[0024] As described below with reference to the accompanying drawings, at least two image sensors having adjacent FOV segments capture image data in overlapping regions during the same overlapping time period during which the two ima...

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Abstract

An array of image sensors is arranged to cover a field of view for an image capture system. Each sensor has a field of view segment which is adjacent to the field of view segment covered by another image sensor. The adjacent field of view (FOV) segments share an overlap area. Each image sensor comprises sets of light sensitive elements which capture image data using a scanning technique which proceeds in a sequence providing for image sensors sharing overlap areas to be exposed in the overlap area during the same time period. At least two of the image sensors capture image data in opposite directions of traversal for an overlap area. This sequencing provides closer spatial and temporal relationships between the data captured in the overlap area by the different image sensors. The closer spatial and temporal relationships reduce artifact effects at the stitching boundaries, and improve the performance of image processing techniques applied to improve image quality.

Description

technical field [0001] This invention relates to image capture technology, and more particularly to improved scanning sensor arrays. Background technique [0002] Image capture devices can be classified as capturing images via global shutter or capture techniques or scanning techniques. Global capture techniques, such as those performed by charge-coupled devices, capture an overall image by sensing an array of data for the image at the same time. Capturing an image or image data means receiving light and storing image data representing the received light. While the global capture technique avoids motion distortion artifacts, one disadvantage is that a spotlight pixel is required to hold its value until it has been read out, which results in an increased refresh period compared to sensors using scanning techniques and by This reduces the refresh rate. Furthermore, for each pixel, an increased semiconductor area is required for the second charge storage element, so that the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/028H04N1/387
CPCG06T11/00A63F2300/8011A63F2300/1093A63F2300/8088
Inventor J·A·塔迪夫
Owner MICROSOFT TECH LICENSING LLC