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by yiannisk
Wed Jan 24, 2018 6:36 pm
Forum: Automation, sensing and robotics
Topic: non-contact heart rate and respiration rate monitoring
Replies: 19
Views: 4404

Re: non-contact heart rate and respiration rate monitoring

That would be a problem, because it is a light installation, so there will be a lot of light changes. It seems that I will have to go to a more traditional "index finger" detection process. But I will have in mind this approach for a future work.
by yiannisk
Wed Jan 24, 2018 5:11 pm
Forum: Automation, sensing and robotics
Topic: non-contact heart rate and respiration rate monitoring
Replies: 19
Views: 4404

Re: non-contact heart rate and respiration rate monitoring

I am working on an art installation, so accuracy is not critical. So you can constantly update the heart rate while he/she stays on camera and have better the results.
by yiannisk
Wed Jan 24, 2018 6:15 am
Forum: Automation, sensing and robotics
Topic: non-contact heart rate and respiration rate monitoring
Replies: 19
Views: 4404

Re: non-contact heart rate and respiration rate monitoring

Thank you. I guess using visible light texture with USB cam is not a problem in my project.

How long does it take to get the first measurement? Do I have to wait for as long as the experimentDurationHours variable is (half hour) or can I get results within 2-5 sec?
by yiannisk
Tue Jan 23, 2018 3:10 pm
Forum: Automation, sensing and robotics
Topic: non-contact heart rate and respiration rate monitoring
Replies: 19
Views: 4404

Re: non-contact heart rate and respiration rate monitoring

Very interesting project. I was just wondering if this can be used without a pi camera but using a normal usb web camera. Secondly, I saw the simple-ALT-raw.py code and what I understood is (I can not run the code without a pi camera) that this code finally save the sSAD data. How do you process thi...
by yiannisk
Fri Mar 03, 2017 3:08 pm
Forum: C/C++
Topic: Bass Audio Library on Raspberry Pi with openFrameworks
Replies: 3
Views: 1650

Re: Bass Audio Library on Raspberry Pi with openFrameworks

I finally managed to find a solution. The problem was that I have to use "hardfp" version the library and not the softfp (the softfp version uses fixed-point rather than floating-point). Substituting the libbass.so with the other version solved the problem.

Thank you for your help!
by yiannisk
Fri Mar 03, 2017 2:55 pm
Forum: C/C++
Topic: Bass Audio Library on Raspberry Pi with openFrameworks
Replies: 3
Views: 1650

Re: Bass Audio Library on Raspberry Pi with openFrameworks

Following your suggestion I moved the libbass.so to "/usr/local/lib". I also added a "libbass.conf" file with only one line (/usr/local/lib) inside the "/etc/ld.so.conf.d/" folder. I run the "sudo ldconfig" and changed the config.make to USER_LIBS=libbass.so Unfortunately, I get the same error. "err...
by yiannisk
Fri Mar 03, 2017 10:26 am
Forum: C/C++
Topic: Bass Audio Library on Raspberry Pi with openFrameworks
Replies: 3
Views: 1650

Bass Audio Library on Raspberry Pi with openFrameworks

Hello, I am using openFrameworks for a project together with Bass audio library (www.un4seen.com/). I have successfully compile and run my code on windows. Now I am trying to do the same on Raspberry pi 3, so I download the ARM linux library of Bass (http://www.un4seen.com/forum/?topic=13804) called...
by yiannisk
Sat Mar 28, 2015 5:35 pm
Forum: Other projects
Topic: Light Catcher: An art installation using Raspberry Pi
Replies: 0
Views: 710

Light Catcher: An art installation using Raspberry Pi

Hi, I would like to share my latest art installation called "Light Catcher". The reason is that one of the main elements of this installation is a Raspberry Pi B+ . Using the excellent rpi_ws281x library created by Jeremy Garff, the Raspberry Pi is controlling 100 NeoPixel leds, that light 100 optic...

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