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Video enhancement method and system

A video enhancement and video technology, which is applied in the field of video enhancement methods and systems, can solve the problems of video graininess, flickering, and unstable effects, and achieve the effects of reducing graininess and flickering, improving brightness and contrast, and having a wide range of applications

Active Publication Date: 2014-10-01
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Using them to enhance video quality often results in grainy and flickering enhanced video and unstable enhancements

Method used

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  • Video enhancement method and system
  • Video enhancement method and system

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] figure 1 is a flowchart of a video enhancement method according to an embodiment of the present invention.

[0018] Such as figure 1 As shown, the video enhancement method according to one embodiment of the present invention includes an object of interest detection step S110, a saliency map calculation step S120, a saliency adaptive temporal filtering step S130, a saliency adaptive exposure correction step S140, a saliency self Adapt local contrast enhancement step S150 and output enhanced video step S160. Each step is described in detail below.

[0019] In step S110, an object of interest is detected in the video. Various existing methods can be used for object of interest detection. For example, object detection based on mixture of Ga...

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Abstract

A video enhancement method and system. The method includes: detecting an object of interest in a video; calculating a saliency map of each frame of the image in the video; constructing a brightness and saliency adaptive temporal filter to filter each frame of the image in the video to eliminate noise; and output enhanced video. The video enhancement method and system enhance the video based on the importance of the video content, so it will not cause blurring of important information in the video. It comprehensively considers the correlation of consecutive multiple frames of images in the video to ensure the stability of the enhancement effect.

Description

technical field [0001] The present application relates generally to image and video processing and, in particular, to video enhancement methods and systems. Background technique [0002] For digital cameras, digital cameras, etc., the main video quality enhancement method is an image enhancement method. This type of method does not consider the relationship between multiple frames of images. Using them to enhance video quality often results in grainy, flickering enhanced video, and choppy enhancements. Contents of the invention [0003] This application is dedicated to providing a video enhancement method that can be dynamically adjusted according to the importance of video content. The importance of video content can be reflected by calculating the saliency of all pixels of each frame of image in the video. [0004] According to a first aspect of the present invention, a video enhancement method is provided, comprising: detecting an object of interest in a video; calcu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/21H04N5/217
Inventor 范圣印王鑫王晓萌宫卫涛
Owner RICOH KK
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