Shadow elimination method and device and storage medium

A shadow and background subtraction technology, which is applied in image data processing, instruments, calculations, etc., can solve problems such as slow computing speed, incomplete shadows or shapes, and easy smears or holes in foreground objects, so as to improve speed and improve The effect of accuracy

Inactive Publication Date: 2019-01-08
BAIC MOTOR CORP LTD
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, since the shadow is removed from the image first, and then the foreground object is extracted, when the shadow and the moving object are not easy to distinguish or the background is close to the moving object, the extracted foreground object is prone to smear or hollow. There are shadows or incomplete shapes of objects, resulting in low accuracy of shadow removal in the foreground target, and slow calculation speed

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
  • Shadow elimination method and device and storage medium
  • Shadow elimination method and device and storage medium
  • Shadow elimination method and device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0071] The terms "first", "second", "third" or "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects without necessarily using Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropr...

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 invention provides a shadow elimination method and device and a storage medium. The method comprises the following steps: acquiring a sequence image, wherein the sequence image comprises a plurality of frames; establishing the Gaussian mixture model according to the sequence images, and estimating the parameters of the Gaussian mixture model; according to the Gaussian mixture model after parameter estimation, subtracting the background to obtain the foreground object in the sequence image; using a tone-saturation degree-brightness HSV color model to remove shadows from foreground objects.The invention not only realizes the shadow elimination of the foreground object extracted from the sequence image, but also improves the accuracy and speed of the foreground object shadow elimination.

Description

technical field [0001] The present invention relates to the technical field of sequential image processing, in particular to a shadow elimination method, device and storage medium. Background technique [0002] In the process of sequence image processing, in order to obtain the required target information, it is necessary to separate and extract the foreground target. In the process of extracting foreground objects, due to background changes, such as lighting, dynamic environment, shadows and other factors, it may cause large differences between frames. In order to detect object changes accurately in real time, in 1997 Wren (Pfinder: Real-time tracking of the human body. IEEE Trans. Patt.) proposed to establish a color model for each pixel in the image, which obeys the Gaussian distribution. However, the Single Gaussian model (SGM) is not ideal for dealing with outdoor environments. In 1999, Stauffer and Grimson (Adaptive background mixture models for real-time tracking, C...

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 Applications(China)
IPC IPC(8): G06T5/00G06T7/194G06T7/136
CPCG06T5/003G06T7/136G06T7/194G06T2207/10016
Inventor 胡皓然马婕郭菲菲
Owner BAIC MOTOR CORP LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap