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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 problems such as flickering, unstable effects, and grainy video, and achieve the effects of improving brightness and contrast, wide application range, and reducing graininess and flickering

Active Publication Date: 2012-08-01
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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
  • 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

The invention relates to a video enhancement method and a system. The method comprises: detecting an interest-based object in a video; calculating a salience map of each frame of image in the video; constructing a time domain filter with brightness and salience adaptation to filter the each frame of image in the video, thereby eliminating noises; and outputting an enhanced video. According to the video enhancement method and the system, video enhancement is carried out based on importance of a video content, so that no fuzzy phenomenon of important information in the video will be caused; besides, relevance of multiple continuous frames of images in the video are comprehensively considered, thereby ensuring stability of the enhanced 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 Applications(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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