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Flag detection and identification method and system

A recognition method and flag technology, applied in the field of image processing, can solve problems such as large differences and inability to be effectively recognized and classified

Pending Publication Date: 2022-02-15
中央广播电视总台
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] As an image with special significance, the flag has important identification significance for the overall meaning of the target picture. However, due to the soft nature of the flag itself, the state (such as flatness) displayed under different external environmental conditions (such as light, wind speed, etc.) , distortion, whether it has shaded parts, etc.) are very different, so they usually cannot be effectively identified and classified

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  • Flag detection and identification method and system
  • Flag detection and identification method and system
  • Flag detection and identification method and system

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present application will be described below 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, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] It should be noted that, in the embodiment of the present application, the term "and / or" is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean that A exists alone , both A and B exist, and B exists alone. In addition, in the embodiment of the present application, the character " / " generally indicates that the contextual objects are an "or" relationship.

[0027] In t...

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Abstract

The invention provides a flag detection and identification method and system. The method comprises the following steps: detecting flags in a target picture by employing a first flag detection network so as to obtain a first flag set; determining whether each flag in the first flag set is valid by using a first flag quality classification network; and for valid flags in the first flag set, extracting features from the valid flags by using a first flag retrieval network, comparing the extracted features with features in a retrieval library, and determining the categories of the valid flags based on a comparison result.

Description

technical field [0001] The present application relates to the field of image processing, in particular to a flag detection and recognition method and system. Background technique [0002] At present, the image recognition technology that extracts a specific target from a target picture and recognizes and classifies the specific target has made great progress and has been widely used. For example, when the vehicle is driving automatically, the image recognition technology that can effectively distinguish people, vehicles and buildings from the pictures collected by the vehicle's image acquisition equipment. [0003] As an image with special significance, the flag has important identification significance for the overall meaning of the target picture. However, due to the soft nature of the flag itself, the state (such as flatness) displayed under different external environmental conditions (such as light, wind speed, etc.) , distortion, whether it has shaded parts, etc.) are ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V10/774G06V10/764G06K9/62
CPCG06F18/24G06F18/214
Inventor 刘万铭张娅王延峰辛威胡英史强张小云董晓波宋乐陈思衡王钰卢鹏丁博马丽娟
Owner 中央广播电视总台