IN2014CH00165A - - Google Patents

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Publication number
IN2014CH00165A
IN2014CH00165A IN165CH2014A IN2014CH00165A IN 2014CH00165 A IN2014CH00165 A IN 2014CH00165A IN 165CH2014 A IN165CH2014 A IN 165CH2014A IN 2014CH00165 A IN2014CH00165 A IN 2014CH00165A
Authority
IN
India
Prior art keywords
geometric
geometric distortions
mapped
distortions
features
Prior art date
Application number
Inventor
Mehta Sachin
Nallusamy Dr Rajarathnam
Original Assignee
Infosys Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Infosys Ltd filed Critical Infosys Ltd
Priority to IN165CH2014 priority Critical patent/IN2014CH00165A/en
Priority to US14/596,986 priority patent/US9355438B2/en
Publication of IN2014CH00165A publication Critical patent/IN2014CH00165A/en

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Classifications

    • G06T5/80—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • G06T1/0064—Geometric transfor invariant watermarking, e.g. affine transform invariant
    • G06T3/02—
    • 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 by the use of more than one image, e.g. averaging, subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Geometry (AREA)
  • Computer Vision & Pattern Recognition (AREA)

Abstract

The technique relates to a system and method for correcting geometric distortions in videos and images. To correct the one or more geometric distortions in videos, the frames of the original and distorted video are mapped at the beginning and then the features associated with the mapped frames which are insensitive to geometric distortions are identified. In case of correcting geometric distortions in images, frame mapping is not required and thus the process starts from identifying the features insensitive to geometric distortions in the original image and distorted image. Then, the geometric distortion parameters are identified from the mapped features. After that, a frame level and video level average distortion of the geometric distortion parameters are determined. Finally, the geometric distortions are corrected based on the frame level and video level average distortion value. REF FIG: 1
IN165CH2014 2014-01-15 2014-01-15 IN2014CH00165A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IN165CH2014 IN2014CH00165A (en) 2014-01-15 2014-01-15
US14/596,986 US9355438B2 (en) 2014-01-15 2015-01-14 Systems and methods for correcting geometric distortions in videos and images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN165CH2014 IN2014CH00165A (en) 2014-01-15 2014-01-15

Publications (1)

Publication Number Publication Date
IN2014CH00165A true IN2014CH00165A (en) 2015-07-17

Family

ID=53521811

Family Applications (1)

Application Number Title Priority Date Filing Date
IN165CH2014 IN2014CH00165A (en) 2014-01-15 2014-01-15

Country Status (2)

Country Link
US (1) US9355438B2 (en)
IN (1) IN2014CH00165A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10282827B2 (en) * 2017-08-10 2019-05-07 Wipro Limited Method and system for removal of rain streak distortion from a video
US10565778B2 (en) 2017-08-22 2020-02-18 Samsung Electronics Co., Ltd. Electronic devices for and methods of implementing memory transfers for image warping in an electronic device
CN111507924B (en) * 2020-04-27 2023-09-29 北京百度网讯科技有限公司 Video frame processing method and device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825929A (en) 1995-10-05 1998-10-20 Microsoft Corporation Transformation block optimization method
US6636220B1 (en) * 2000-01-05 2003-10-21 Microsoft Corporation Video-based rendering
WO2002013138A1 (en) 2000-08-03 2002-02-14 Digital Copyright Technologies Ag Method for adaptive digital watermarking robust against geometric transforms
US6845170B2 (en) 2001-01-11 2005-01-18 Sony Corporation Watermark resistant to resizing and rotation
US6563937B1 (en) 2001-11-28 2003-05-13 Sony Corporation Method and apparatus to detect watermark that are resistant to arbitrary deformations

Also Published As

Publication number Publication date
US9355438B2 (en) 2016-05-31
US20150199798A1 (en) 2015-07-16

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