Method and system for improving OCR recognition rate
A recognition rate, to-be-recognized technology, applied in the system field of improving OCR recognition rate, can solve problems such as character recognition accuracy decline, loss of target characters, chip photo offset, etc., to improve recognition rate and accuracy, and improve OCR recognition rate effect
Inactive Publication Date: 2021-01-01
深兰智能科技(上海)有限公司
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However, when the photoelectric signal is used to hard-trigger the camera to take pictures of each chip in sequence, due to the high speed of the sliding device, there will be a delay in the camera’s response to the hard-triggered photo, which will cause a slight offset in the photo of the chip, which will easily lead to ROI interception. Part of it may cause interference characters or loss of some target characters, resulting in a decrease in the accuracy of character recognition
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] figure 1 It is a flow chart of the method for improving the OCR recognition rate according to the embodiment of the present invention. Wherein, the method for improving the OCR recognition rate in the embodiment of the present invention can be used for objects to be recognized with position recognition points, and the objects to be recognized can be imprinted with a fixed module.
[0024] like figure 1 As shown, the method for improving the OCR recogn...
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The invention provides a method and system for improving the OCR recognition rate, and the method comprises the following steps: obtaining an image of a to-be-recognized object which is provided witha position recognition point; processing the image of the to-be-recognized object to mark an area where the position identification point is located and a target area in the to-be-recognized object; processing the marked image of the target area; performing OCR recognition on the target area image and the processed target area image to obtain a recognition character of the target area; comparing the recognition character of the target area with the actual character of the target area; if the recognition character of the target area is matched with the actual character of the target area, calculating the offset between the area where the position recognition point is located and the target area; and carrying out OCR recognition on the to-be-recognized object of the same type according to the position recognition point and the offset. According to the invention, the target area of the to-be-recognized object can be accurately intercepted through the position recognition points on the to-be-recognized object, so that the recognition rate and accuracy of OCR can be improved.
Description
technical field [0001] The invention relates to the technical field of OCR recognition, in particular to a method for improving the OCR recognition rate and a system for improving the OCR recognition rate. Background technique [0002] When performing OCR on the characters on the chip on the production line, generally a sliding device equipped with multiple chips passes through the camera lens to photograph and recognize the chips. However, when the photoelectric signal is used to hard-trigger the camera to take pictures of each chip in sequence, due to the high speed of the sliding device, there will be a delay in the camera’s response to the hard-triggered photo, which will cause a slight offset in the photo of the chip, which will easily lead to ROI interception. Part of it may cause interference characters or loss of some target characters, resulting in a decrease in the accuracy of character recognition. Contents of the invention [0003] The present invention aims t...
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IPC IPC(8): G06K9/32G06K9/34G06K9/62G06T3/60
CPCG06T3/60G06V10/242G06V20/63G06V30/153G06V30/10G06F18/22
Inventor 陈海波于强
Owner 深兰智能科技(上海)有限公司