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Barcode recognition method and apparatus

A recognition method and barcode technology, applied in the computer field, can solve problems such as waste, high CPU resource occupancy rate, and slow barcode recognition speed, so as to achieve the effect of reducing time spent on reading, reducing resource occupancy rate, and improving barcode recognition speed

Active Publication Date: 2014-03-12
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that in the actual barcode detection process, because the camera constantly changes the focal length, most of the preview data is data in a virtual focus state, so the recognition results of the barcode recognition module for most preview frames are recognition errors. Therefore, the barcode recognition process will go through multiple cycles in steps 3 and 4. At this time, many CPU time slices of the mobile device are wasted on the recognition of the out-of-focus preview frame, resulting in slow barcode recognition speed and high CPU resource usage. higher

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  • Barcode recognition method and apparatus
  • Barcode recognition method and apparatus
  • Barcode recognition method and apparatus

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote 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. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

[0026] In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" a...

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Abstract

The invention provides a barcode recognition method and a barcode recognition apparatus and belongs to the technical field of a computer. The barcode recognition method comprises the steps of acquiring a current preview frame of a current barcode; computing energy information of the current preview frame; judging whether energy information of the current preview frame is larger than a threshold value, if so, identifying the current preview frame; if energy information of the current preview frame is smaller than or equal to a threshold value, discarding the current preview frame, acquiring a next preview frame until energy information of the acquired next preview frame is larger than the threshold value, and identifying the next preview frame of which the energy information is larger than the threshold value. The barcode recognition method and apparatus, through filtering out low-quality images before recognition, can greatly reduce time taken in recognizing a virtual image and other low-quality images, and can reduce resource occupancy rate of a central processing unit (CPU) and improve a barcode recognition speed.

Description

technical field [0001] The invention relates to the field of computers, in particular to a barcode identification method and device. Background technique [0002] With the continuous popularization of computer applications, the application of barcode (barcode for short) has been greatly developed. Date and other information, so it has been widely used in many fields. [0003] As a bridge between the real world and the information world, barcodes are increasingly accepted and used by people, including using mobile devices such as mobile phones to identify commodity barcodes to find corresponding commodity information. Recognition speed has become an important indicator for judging the quality of barcode recognition technology. [0004] At present, the method for identifying a barcode by a mobile device includes the following steps: 1. The barcode recognition starts, the camera on the mobile device is turned on, and begins to receive data; Preview the data of the preview fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/10
Inventor 龚龙
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD