CN107004261A - 图像畸变校正方法及装置 - Google Patents

图像畸变校正方法及装置 Download PDF

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Publication number
CN107004261A
CN107004261A CN201580028733.9A CN201580028733A CN107004261A CN 107004261 A CN107004261 A CN 107004261A CN 201580028733 A CN201580028733 A CN 201580028733A CN 107004261 A CN107004261 A CN 107004261A
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distance value
frame image
pixel point
image
correction coefficient
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CN107004261B (zh
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朱聪超
罗巍
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/80—Geometric correction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4038—Image mosaicing, e.g. composing plane images from plane sub-images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general
    • G06T2200/32—Indexing scheme for image data processing or generation, in general involving image mosaicing

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Studio Devices (AREA)
  • Geometry (AREA)

Abstract

本发明实施例涉及一种图像畸变校正方法及装置，所述方法包括：以偏离竖直方向的第一角度拍摄第n帧图像，其中，第n帧图像的第一像素点到光心的距离值在光轴方向的投影为第一距离值，第n帧图像的第i像素点到光心的距离值在光轴方向的投影为第二距离值；获取第三距离值和第四距离值；根据第一距离值和第二距离值，以及第三距离值和第四距离值，获取第n帧图像的第i像素点的校正系数；根据校正系数，以第一帧图像的第i像素点的位置为基准，校正第n帧图像的第i像素点的位置。通过该方法，可以有效的避免合成后的图像不垂直、顶部发生弯曲变形等问题。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN201580028733.9A 2015-09-15 2015-09-15 图像畸变校正方法及装置 Active CN107004261B (zh)

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PCT/CN2015/089634 WO2017045129A1 (zh) 2015-09-15 2015-09-15 图像畸变校正方法及装置

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CN107004261A true CN107004261A (zh) 2017-08-01
CN107004261B CN107004261B (zh) 2020-01-21

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EP (1) EP3252709B1 (zh)
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CN109087253B (zh) * 2017-06-13 2020-12-25 杭州海康威视数字技术股份有限公司 一种图像校正方法及装置
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EP3252709A4 (en) 2018-04-11
US20180122055A1 (en) 2018-05-03
WO2017045129A1 (zh) 2017-03-23
US10373298B2 (en) 2019-08-06
CN107004261B (zh) 2020-01-21
EP3252709B1 (en) 2019-05-22
EP3252709A1 (en) 2017-12-06

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