Image signal processor with two-dimensional code identification and two-dimensional code identification method

Abstract

The invention provides an image signal processor with two-dimensional code identification and a two-dimensional code identification method. The two-dimensional code identification is integrated in an image signal processor, and is matched with a two-dimensional identification method, so that a camera module can be used for directly shooting a picture and then identifying a two-dimensional code, thus the advantages of strong generality, no limit of outside interference by software, fast reflection, convenience for operation, high identification correction rate, no occupation of benefit of hardware resources of handheld devices are achieved; and meanwhile, because all functions are integrated into the image signal processor, the influence of massive production on the increase of the cost of final products is little, more importantly, the two-dimensional code identification can be realized without changing an external interface design and a structure size design of equipment, and the application of the two-dimensional code is promoted to reach a higher level.

Description

technical field [0001] The invention relates to a barcode recognition device and method thereof, in particular to a two-dimensional code recognition method based on an image signal processor and an image signal processor capable of two-dimensional code recognition. Background technique [0002] Two-dimensional barcode (dimensional barcode), also known as two-dimensional barcode, is a readable barcode extended on the basis of one-dimensional barcode. The equipment scans the two-dimensional barcode, and by identifying the binary data recorded in the length and width of the barcode, the information contained in it can be obtained. Compared with one-dimensional barcodes, two-dimensional codes record more complex data, such as pictures, network links, etc. With the popularization of a series of digital products such as mobile phones with built-in cameras, QR codes have also been widely used in recent years. [0003] In the existing two-dimensional code recognition, the camera i...

AI Technical Summary

Problems solved by technology

[0005] (1) poor versatility

Because it is used on the system platform of different devices, the corresponding application software needs to be pre-installed on the platform, and the existing two-dimensional code software is independently developed by each operator according to the needs of its own products, and they cannot be used universally. Therefore, once An operator manufacturer did not develop corresponding software specifically for this platform, and the platform could not realize the function of QR code recognition. The limitation of the hardware platform greatly hindered the universality of QR code recognition.

[0006] (2) Low security

QR code recognition is based on a software installed on the device's own system, so it is easily damaged or tampered with by viruses or man-made. In light cases, the function of QR code recognition will fail, and in severe cases, it may even endanger the user's account and funds. Safety;

[0007] (3) Slow speed

The above-mentioned processing method has many intermediate transmission links in the device's own system, and the reflection time of the identification processing is relatively long;

[0008] (4) Inconvenient operation

[0009] (5) It is difficult to identify

The accuracy rate and recognition efficiency of pure software recognition are low, and the recognition must be guaranteed under certain shooting conditions, for example: it must be in the center of the image, the ambient brightness must be moderate, and the two-dimensional code recognition points must be aligned, etc. It is difficult and the customer experience is poor;

[0010] (6) Consuming system resources

Since the existing two-dimensional code recognition is realized by the software installed on the device's own system platform, the decoding of the two-dimensional code recognition is done by the main control chip of the device's own system platform, which will occupy the main frequency resources of the device. Especially for machines whose main control chip configuration is not high, it will especially affect the recognition speed

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