process speed requirement for ocr

[rezamehranpour]

please help me ,i am looking for an idea about hardware selecting according time process

i want to use line scan cam ,the program based on OCR and i have limitation time about 18 ms could you tel me witch hardware is suitable

PC base ,embedded vision,pxi,..

[Bcortes · Accepted solution]

Hi @rezameharnpour

If your application will only perform OCR, I would recommend an Industrial Controller if you need a compact system. However, if space does not matter you can use any computer with good spec. Concerning the camera, I recommend a Line Scam camera. Here, I leave links for reference. 

Compact Vision System 

Line Scan Camera 

For more detailed advice I would recommend contacting support.

[rezamehranpour]

hi sir thanks for your attention i read some document that comparing cpu and FPGA 

such as https://www.vision-systems.com/articles/print/volume-22/issue-8/features/cpu-or-fpga-for-image-proce...

that shows FPGA is not suitable for OCR 

could you help me please

[rezamehranpour]

should i use real time system ?

make pc real time  or use embedded vision.compact vision or pxi

thanks

[Bcortes]

Hi

If your application needs to be deterministic I would recommend using an FPGA or an RT system. However, I think that for your application a conventional OS like Windows may be suitable. Using LabVIEW the FPGA can be used for OCR, the main restrain or limitation is that the FPGA does not have a substantial memory that can be used to store the image or to store the processed image. However, this document explians what can be done:

Introduction to FPGA Vision Using the NI Vision Development Module