Question:
I would like to know the following questions from someone who has worked with a biometric fingerprint reader:
- Are the outputs of biometric readers standard, that is, does a model A reader of brand X follow the same pattern as a reader B of brand Y?
- Is the output generated in text, with a hash type imposed by this standard (if any), or is it some image format?
- If it's a hash, is it done by the hardware itself or do I need an API to generate it?
- Are there different types of resolution (dimensions) for readers in the market?
- Can I process this output on less powerful hardware? (my idea is to use it on an Intel Galileo ) .
Answer:
I worked with some models like DigitalPersona and PalmSecure from Fujitsu. All come normally with an interface for integration. Which usually have implementation for Java, C++ and other languages.
Are the outputs of biometric readers standard, that is, does a model A reader of brand X follow the same pattern as a reader B of brand Y? A: Yes, they have a pattern. As in my case for example, I used two readers with only one implementation.
Is the output generated in text, with a hash type imposed by this standard (if any), or is it some image format? A: Usually an array of bytes, however, it is possible to convert it to an image.
If it's a hash, is it done by the hardware itself or do I need an API to generate it? A: You will always need to integrate with their SDK(API).
Are there different types of resolution (dimensions) for readers in the market? A: I can't tell you, but I think they follow a pattern in the dimensions.
Can I process this output on less powerful hardware? (my idea is to use it on an Intel Galileo). A: Depends on what you mean by processing the output. If it consists of capturing the biometrics and sending them to the server for processing, great. However, if you want to store locally on Intel Galileo and process directly on it, I think it will be impossible.
I hope I could have helped.
Note: my information is based on studies I did on this subject about 2 years ago. Maybe this area has evolved, making these answers not so coherent nowadays, however, I think it's very unlikely, because I worked for 12 months and I never saw changes.
Good luck!