Batch QR code image extraction method and system
An extraction method and a QR code technology, applied in the field of image processing, can solve problems such as the inability to quickly and effectively identify and segment batch QR code images, and the QR code recognition method is difficult to apply to batch QR code recognition scenarios, so as to speed up the overall recognition efficiency, The effect of improving robustness
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0050] A batch QR code image extraction method, such as figure 1 shown, including the following steps:
[0051] S1. For inputting a high-resolution image to be segmented containing multiple QR codes, refer to figure 2 , and perform preprocessing on it; preprocessing mainly includes conventional image preprocessing operations such as RGB grayscale transformation, 3*3 median filter, and edge enhancement to compress the amount of data and eliminate the influence of noise on subsequent algorithm processing.
[0052]Among them, the image to be segmented is converted to RGB grayscale using formula 1 to obtain a grayscale image grayImage:
[0053] grayImage=0.30R+0.59G+0.11B(1)
[0054] Among them, the R, G, and B values are the grayscale values corresponding to the three channels of the input color image. Followed by conventional preprocessing operations such as filtering and denoising to compress the amount of data and eliminate the impact of noise on subsequent algorithm p...
Embodiment 2
[0088] A batch QR code image segmentation system, such as Figure 11 shown, including:
[0089] A preprocessing module is used to obtain images to be segmented that contain multiple QR codes and preprocess them;
[0090] The edge image acquisition module, for the image obtained by the preprocessing module, adopts the edge detection method to extract its edge gradient value, and obtains the edge image by truncation and normalization;
[0091] The block size determination module is used to initialize the block size, iteratively obtains the block feature of the edge image, and determines the optimal block size
[0092] The candidate rectangular frame set acquisition module is used to divide the edge image into blocks with the optimal block size, calculate the optimal block feature and feature segmentation threshold, mark the block clustering to obtain the candidate rectangular frame set, and pass the preset The filter conditions of the candidate rectangles are used to filter th...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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