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Image-based store identification method, device, and electronic equipment

A store and image technology, applied in the computer field, can solve the problems that the image features of the store plaque are not clear and complete, the store recognition accuracy is not high, and the recognition accuracy is not high. low rate effect

Active Publication Date: 2021-04-27
BEIJING SANKUAI ONLINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the image features extracted in the above shop recognition methods in the prior art are less robust to the recognition of larger images with changes in the acquisition angle and lighting scene, and the feature expression of the shop plaque image is not clear and complete enough. As a result, the accuracy of store identification is not high
[0003] To sum up, the image-based store recognition methods in the prior art have at least the problem of low recognition accuracy

Method used

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  • Image-based store identification method, device, and electronic equipment
  • Image-based store identification method, device, and electronic equipment
  • Image-based store identification method, device, and electronic equipment

Examples

Experimental program
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Embodiment 1

[0024] An image-based shop identification method disclosed in this embodiment, such as figure 1 As shown, the method includes: Step 110 to Step 130.

[0025] Step 110, acquire global image features of the target plaque image, and acquire sub-regional salient features of the target plaque image.

[0026] In the application scenario of store recognition based on the image of the store plaque, it is first necessary to train the neural network model to extract the global image features of the target plaque image. In the embodiment of the present application, the global image feature is a high-dimensional feature used to characterize the appearance difference of the target plaque in the target plaque image, such as content distribution, global color distribution information, edge information, etc. of the target plaque image. In some embodiments of the present application, the global image features of the target plaque image can be extracted by pre-training a convolutional neural n...

Embodiment 2

[0034] An image-based shop identification method disclosed in this embodiment, such as figure 2 As shown, it includes: step 210 to step 270.

[0035] Step 210, train the neural network model.

[0036] In some embodiments of the present application, the Darknet53 network can be used as the basic network, and the CoupledClusters Loss (coupled cluster loss) can be used for comparative training to reduce the distance within the feature class and increase the feature difference between classes to extract distinguishable Plaque image features, finally, expanded into a vector of specified length (such as 1000) to train the neural network model. For the training method of the neural network model, refer to the prior art, which will not be repeated in this embodiment.

[0037] In some embodiments of the present application, it further includes: based on the YOLO object detection algorithm, training a shop plaque detection model, so as to obtain the plaque image in the input image th...

Embodiment 3

[0098] An image-based store identification device disclosed in this embodiment, such as image 3 As shown, the device includes:

[0099] A feature acquisition module 310, configured to acquire global image features of the target plaque image, and acquire sub-regional salient features of the target plaque image;

[0100] A feature fusion module 320, configured to determine the image features of the target plaque image according to the global image features and subregional salient features;

[0101] The matching recognition module 330 is configured to determine a store matching the target plaque image according to the image features of the target plaque image and the store image features of preset stores.

[0102] In some embodiments of the present application, such as Figure 4 As shown, the feature acquisition module 310 further includes:

[0103] The first feature acquisition sub-module 3101 is configured to acquire global image features of the target plaque image through ...

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Abstract

The application discloses an image-based store identification method, which belongs to the field of computer technology and is used to solve the problem of low accuracy of image-based store identification. The image-based store recognition method disclosed in the embodiment of the present application includes: acquiring the global image features of the target plaque image, and acquiring the sub-regional salient features of the target plaque image; determining The image features of the target plaque image; determining the store matching the target plaque image according to the image features of the target plaque image and the store image features of preset stores. Since the image features adopted by the image-based store identification method disclosed in the embodiment of the present application take into account both the global features of the image and the local fine-grained regions, the image features are comprehensive and distinguishable, which can improve the image-based store identification. Accuracy.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to an image-based shop identification method, device, and electronic equipment. Background technique [0002] In the prior art, when searching for a store or identifying a store in an image through the image of a store plaque, a feature index can be established for the entire signboard area, that is, the character information of the image, texture features, and plaque content distribution information are considered, which will have better results. robustness. For example, the Chinese patent application with publication number CN104598885B uses scale-invariant feature transform (SIFT, Scale-invariant feature transform) to detect or describe local features in images, and combines HS feature components for image recognition. It is more robust to images with small viewing angle changes and small changes in lighting scenes. However, the image features extracted in the above...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/32G06K9/46G06K9/62G06N3/04G06N3/08
Inventor 王博李文哲孔剑
Owner BEIJING SANKUAI ONLINE TECH CO LTD
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