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Method and camera for producing an image stabilized video

A camera and image stabilization technology, applied in the field of image stabilization video production, can solve problems such as amplification noise

Active Publication Date: 2016-11-30
AXIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But if the vignetting is severe, then removing it will severely amplify the noise in the affected area

Method used

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  • Method and camera for producing an image stabilized video
  • Method and camera for producing an image stabilized video
  • Method and camera for producing an image stabilized video

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Embodiment Construction

[0031] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and fully convey the present invention to those skilled in the art. the scope of the invention.

[0032] As will be appreciated by those skilled in the art, aspects of the invention may be embodied as an apparatus, method or computer program product. Accordingly, aspects of the invention can take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, microcode, etc.), or an embodiment combining software and hardware. Furthermore, the present invention can take the form of a computer program product embodied in one or mor...

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Abstract

The present invention relates to a method and a camera for producing an image stabilized video. The method comprises providing data defining a vignetting effect for digital image frames captured by a video camera; determining a dislocation value for a digital image frame captured by the video camera; determining, based on the dislocation value, a region of the digital image frame to be displayed in the image stabilized video; applying a vignetting removal process at least on pixels of the digital image frame corresponding to the region to be displayed in the image stabilized video, wherein said applying being based on the data defining the vignetting effect; and reintroducing vignetting on the region of the digital image frame to be displayed in the video based on the data defining the vignetting effect and the dislocation value.

Description

technical field [0001] The invention relates to the production of image stabilization video. Background technique [0002] Video captured by a video camera may suffer from a problem known as camera shake. For example, a camera installed in an area (for example, to monitor the area) may from time to time experience caused by shaking or vibration. This shaking or vibration induces movement of the camera, thus making the captured video jittery. [0003] Prior art systems for image stabilization to reduce the effects of camera shake typically include electronic manipulation of the video captured by the camera prior to displaying the video. Thereby, a steady view of the video is presented to the viewer despite the induced motion of the camera. [0004] The gradual disappearance of the edges of a photo or picture on the surrounding paper is known as vignetting. The method of generating this pattern is conscious. However, the term vignetting is also used to denote the involun...

Claims

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Application Information

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IPC IPC(8): H04N5/357H04N5/232
CPCH04N23/681H04N23/635H04N25/61H04N23/68H04N23/6842H04N23/685H04N23/6811H04N23/689H04N23/683H04N23/80H04N23/6812G06T2210/22H04N5/77
Inventor 比约恩·阿多
Owner AXIS