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DobotVisionStudio User Guide
Issue V4.1.2 (2022-06-08) User Guide Copyright © Yuejiang Technology Co., Ltd.
142
When character filtering is enabled, you can customize the number of recognized characters and the
type of each character, including all, numbers, uppercase letters, lowercase letters, special characters,
spaces, customization, etc. You can define characters that are easy to be misunderstood through
Customize, but only if the customized characters exist in the character library.
5. Click Run to output the target character in the image. The first possible recognition result and
candidate recognition result will be output. The first possible result is read by default, as shown in
the following figure.
DL Character Recognition
Character recognition is a process of converting image information into symbols that can be
represented and processed by the PC. Essentially, character recognition task can be considered as a
special translation process: translating image signals into natural language. This is similar to speech
recognition and machine translation: from a mathematical point of view, they convert a set of input
sequences containing a large amount of noise into a set of output sequences of a given label through
the model obtained by automatic learning.
With features of low rejection rate, low error rate, fast recognition speed, high stability, friendly user
interface, etc., DL character recognition is widely applied to dot and matrix character recognition,
IC chip character recognition, inkjet printing character recognition, bank card character recognition,
etc. Character training is required before character recognition, and it is recommended to use
character recognition tool together with character location tool.