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Noise intensity estimation method and device and electronic equipment

A technology of noise intensity and noise estimation, applied in the field of noise estimation, can solve problems such as interference of noise estimation results, and achieve the effect of eliminating interference, accurate and stable results

Pending Publication Date: 2021-05-28
BIGO TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a method, device and electronic equipment for estimating noise intensity, so as to solve the problem of interference of existing detailed textures on noise estimation results to a certain extent.

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  • Noise intensity estimation method and device and electronic equipment
  • Noise intensity estimation method and device and electronic equipment
  • Noise intensity estimation method and device and electronic equipment

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0035] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," et...

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Abstract

The embodiment of the invention provides a noise intensity estimation method and device and electronic equipment, and relates to the technical field of noise estimation. The method comprises the following steps: acquiring a target frame image in a to-be-estimated video; performing block processing on the target frame image to obtain a first image block set; performing texture detection on each image block in the first image block set, and determining a second image block set with uniform textures in the first image block set; performing time domain analysis on each image block in the second image block set, and determining a third image block set needing noise estimation in the second image block set; and performing noise estimation according to the third image block set to obtain the noise intensity of the video to be estimated. According to the scheme, the interference of a stable high-frequency signal on the time sequence on the noise estimation value can be eliminated, so that the result of the noise estimation value is more accurate and stable.

Description

technical field [0001] The present invention relates to the technical field of noise estimation, in particular to a noise intensity estimation method, device and electronic equipment. Background technique [0002] At present, noise estimation has become a key link in video noise reduction technology. In order to determine the weight value of the weighted average, it is necessary to know whether the difference between pixels (blocks) is caused by misalignment or noise, and thus the noise intensity needs to be estimated. There are two types of problems in existing noise estimation algorithms: first, it is impossible to separate noise from complex texture / details; second, the noise value estimated by the algorithm based on a single frame image is strongly dependent on the content of the image, and cannot distinguish between gravel / grain Marble / cement and other textures are similar to noise, so it is prone to misestimation, and the accuracy of noise estimation will directly aff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/40G06T5/00
CPCG06T7/0002G06T7/40G06T2207/10016G06T2207/20021G06T5/70
Inventor 郭莎朱飞杜凌霄
Owner BIGO TECH PTE LTD