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Compression, decompression and processing method and system for image data of electronic shelf labels

An electronic shelf label and image data technology, applied in image communication, electrical components, digital video signal modification, etc., can solve the problems of large instantaneous network load, increased power consumption, and untimely update of price tags, etc., to reduce the packet loss rate , Reduce power consumption, update accurate and efficient effects

Inactive Publication Date: 2018-11-09
广州科政数码科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing electronic shelf labels are generally powered by batteries, and a gateway is used to connect a large number of electronic shelf labels to form an update network. Under the existing electronic shelf label data transmission technology, when a large number of electronic shelf labels are updated, they can be updated directly through the update The network sends the original, uncompressed electronic shelf label image data to each electronic shelf label concurrently. The large amount of data is transmitted, the instantaneous load of the network is very large, and the data packet loss rate is high, causing some price tags to be updated untimely, requiring repeated data transmission. This in turn increases the power consumption of each update and puts a burden on the battery

Method used

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  • Compression, decompression and processing method and system for image data of electronic shelf labels
  • Compression, decompression and processing method and system for image data of electronic shelf labels
  • Compression, decompression and processing method and system for image data of electronic shelf labels

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Embodiment 1

[0047] Such as figure 1 As shown, this embodiment 1 discloses a method for compressing image data of an electronic shelf label, the steps of which include:

[0048] S11. Obtain the original image data of the electronic shelf label;

[0049] S12. Perform run-length encoding on the first image data in the original image data to obtain the second image data, and the second image data and the third image data form the compressed data of the electronic shelf label; the first image data is pixel data satisfying preset conditions ; The third image data is other image data in the original image data except the first image data.

[0050] Specifically, step S12 includes:

[0051] S121. Read the pixel data in the original image data sequentially according to the arrangement sequence of the pixel data in the original image data;

[0052]S122. When N pieces of first image data with the same color are continuously read, replace the N pieces of first image data with second image data; whe...

Embodiment 2

[0057] Such as figure 2 As shown, Embodiment 2 discloses a method for decompressing electronic shelf label image data, the steps of which include:

[0058] S21. Obtain the compressed data of the electronic shelf label; the compressed data of the electronic shelf label is the data obtained by compressing the original image data of the electronic shelf label through the compression method in embodiment 1;

[0059] S22. Perform run-length decoding on the second image data in the electronic shelf label compressed data to obtain original image data of the electronic shelf label.

[0060] Specifically, step S22 includes:

[0061] S221. Sequentially read the compressed data of the electronic shelf label;

[0062] S222. When the second image data is read, replace it with M consecutive third image data, the third image data is the tag value in the second image data, and M is equal to the frequency in the second image data;

[0063] S223. After reading and replacing all the compress...

Embodiment 3

[0065] Such as image 3 As shown, Embodiment 3 discloses a method for processing image data of an electronic shelf label, the steps of which include:

[0066] The server uses the compression method in Embodiment 1 to process the pre-transmitted original image data of the electronic shelf label to obtain the compressed data of the electronic shelf label;

[0067] The server transmits the compressed data of the electronic shelf label to the electronic label terminal;

[0068] The electronic label terminal uses the decompression method in Embodiment 2 to decompress the compressed data of the electronic shelf label to obtain the original image data of the electronic shelf label.

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Abstract

The invention discloses a compression method for electronic shelf label image data. The method comprises the following steps that S11, original image data of electronic shelf labels are acquired; andS12, run-length coding is carried out on first image data in the original image data so as to obtain second image data, and the second image data and third image data form compressed data of the electronic shelf labels, wherein the first image data is pixel data meeting the preset conditions, and the third image data are other image data except the first image data in the original image data. Theinvention further discloses a decompression method, a processing method and a corresponding system for the image data of the electronic shelf labels. According to the technical scheme of the compression method, the decompression method, the processing method and the corresponding system, the pre-transmitted image data volume of the electronic shelf labels is greatly decreased through compression,and the power consumption in the updating process of the large-batch electronic shelf labels and the load caused to the network are reduced.

Description

technical field [0001] The invention belongs to the field of image processing and transmission, and mainly relates to a method and system for compressing, decompressing, and processing image data of an electronic shelf label. Background technique [0002] In recent years, with the reduction of the price of electronic screens, it has become a trend for electronic shelf labels ESL to replace traditional paper labels. Compared with traditional paper labels, electronic shelf labels can quickly and remotely update the product information (product name, price, barcode, QR code, etc.) on the price tag. It is easy to use, easy to set up, and widely used. There are often a lot of redundant background image data in the image data of electronic shelf labels, such as black and white background color data, or black, white and red background color data. The existing electronic shelf labels are generally powered by batteries, and a gateway is used to connect a large number of electronic s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/93H04N19/44
CPCH04N19/44H04N19/93
Inventor 聂品梁志刚李毅航
Owner 广州科政数码科技有限公司
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