Icon recognition method and device

A recognition method and icon technology, which is applied in the research field of image recognition, can solve problems such as image rotation, brightness change, weak robustness of scale transformation, poor image recognition, and low feature discrimination

Inactive Publication Date: 2018-04-27
广东中科南海岸车联网技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many methods that perform poorly in image recognition. When performing feature extraction, corners or edges are often directly extracted. The extracted features are not highly differentiated, resulting in low recognition accuracy. Transformation is

Method used

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  • Icon recognition method and device
  • Icon recognition method and device

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Embodiment Construction

[0064] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0065] Those of ordinary skill in the art can understand that the meanings of the nouns involved in the present invention are analyzed as follows:

[0066] SIFT algorithm: SIFT feature (Scale-invariant feature transform, scale-invariant feature transformation) is a computer vision algorithm used to detect and describe local features in images. It looks for extreme points in the spatial scale, and Extract its position, scale, and rotation invariants.

[0067] This algorithm was published by David Lowe in 1999 and perfected in 2004. Its ...

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Abstract

The invention provides an icon recognition method and device. The method comprises the following steps: a to-be-recognized image containing a specific icon is acquired; an image processing method is used to process the to-be-recognized image to detect the feature points of the specific icon, and feature vectors of the feature points are extracted to form a unique feature vector group; the generated feature vector group and a feature vector group uniquely corresponding to reference icons preset in a feature database are matched one by one to determine a target icon matched with the specific icon; and the icon information corresponding to the target icon is acquired from a third-party database and is outputted. The method carries out icon recognition based on an SIFT algorithm with scale invariance, the icon recognition precision is enhanced, and robustness of the scheme towards rotation, brightness change and scale transformation happening to the image are enhanced.

Description

technical field [0001] The invention relates to the research field of image recognition, in particular to an icon recognition method and device. Background technique [0002] Obtaining the information contained in images through image-based search is a problem with the most application value and market potential that is closely related to users in the current mobile Internet era. Taking trademark images as an example, trademarks play a very important role in daily life. Role, which is a sign to distinguish the source of goods or services. Behind the trademark contains a lot of useful and important information, which has a wide application prospect in all aspects of daily life. Facing the product that the user is directly interested in, the user hopes to use the mobile phone to take pictures of the product containing the trademark image and use the image search method to accurately obtain the information contained in the trademark image, and then obtain the relevant informat...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06F17/30
CPCG06F16/5838G06V10/757G06F18/22
Inventor 许超然张正顺陆遥霍焯亮马祥园
Owner 广东中科南海岸车联网技术有限公司
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