Unlock instant, AI-driven research and patent intelligence for your innovation.

An edge-preserving image filtering method with scale-sensitive properties

A technology with edge-preserving and sensitive characteristics, applied in the field of edge-preserving image filtering, it can solve the problems of halo, blurring large-scale information edges, and inability to handle object edges well, and achieve the effect of strong realism and good visual effect.

Active Publication Date: 2020-09-22
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Gaussian filtering also blurs the edges of large-scale information at the same time, causing halos, and does not handle object edges well when scale separation
Although the traditional edge-preserving filter can preserve the edge, it is difficult to have the above-mentioned scale-sensitive basic filtering characteristics; and to make the filter have good scale-sensitive characteristics, it is difficult to obtain the ideal edge-preserving effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An edge-preserving image filtering method with scale-sensitive properties
  • An edge-preserving image filtering method with scale-sensitive properties
  • An edge-preserving image filtering method with scale-sensitive properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0047] The present invention provides an edge-preserving image filtering method with scale-sensitive characteristics, which uses iterative optimization to calculate the filtering result image S of the input image I; in each optimization process, the current energy function is minimized to obtain the The filtered image S obtained by iterative optimization t , the filtered image obtained by the last optimization is the final filtered result image S, and the iterative process is as follows figure 1 shown.

[0048] Wherein, in the above iterative process, the energy function is represented by the sum of the energy of all pixels in the image. The energy of any pixel p is the sum of the square of the pixel difference and the smooth gradient; where, the pixel difference is the filtered image S t The difference from the input image I at pixel p, the smooth grad...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides an edge-preserving image filtering method with scale-sensitive characteristics, which not only can maintain edges well through global optimization, but also has good scale-sensitive characteristics by introducing scale sensitivity measurements into the optimization equation. The present invention uses iterative optimization to calculate the filtering result image S of the input image I. In each optimization process, the filtered image S obtained by this optimization is solved by minimizing the current energy function. t , the filtered image obtained by the last optimization is the final filtering result image S.

Description

technical field [0001] The invention belongs to the field of nonlinear filtering of digital images, and in particular relates to an edge-preserving image filtering method with scale-sensitive characteristics. Background technique [0002] The edge-preserving filtering of digital images is a kind of nonlinear filtering, the purpose is to filter out the image detail information while keeping the edge information from being blurred, that is, to keep the edges of objects in the image. Due to this characteristic, edge-preserving filtering is widely used in image and computer vision processing, which can achieve good results in digital image and video enhancement, synthesis, high dynamic compression and various stylization, and avoid halo phenomenon. At present, many edge-preserving filtering methods and techniques have been proposed and invented. Among them, bilateral filtering is the most widely used image edge-preserving filtering technique. It uses the product of two Gaussi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/20024G06T2207/20192G06T5/00
Inventor 周志强汪渤高志峰缪玲娟董明杰石永生
Owner BEIJING INSTITUTE OF TECHNOLOGYGY