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pupil-labs / pupil

Open source eye tracking
https://pupil-labs.com
GNU Lesser General Public License v3.0
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Pupil player - Modify playback speed. #1013

Closed gabrielDiaz-performlab closed 6 years ago

gabrielDiaz-performlab commented 6 years ago

When working with fixation detection etc, playing at full speed is far too fast.

papr commented 6 years ago

Are you aware that you can seek frame by frame using the arrow keys?

papr commented 6 years ago

There is also the option to jump to the next fixation using the thumb button on the left.

gabrielDiaz-performlab commented 6 years ago

Yes, I'm aware of both methods. Neither is equivalent to modifying playback speed.

Gabriel J. Diaz, Ph.D. Assistant Professor Rochester Institute of Technology Chester F. Carlson Center for Imaging Science

Founder of PerForM Labs Click for demos. https://www.cis.rit.edu/performlab/

Office 2108, Building #76 Rochester, NY 14623 Office: (585) 475-6215 gabriel.diaz@rit.edu

On Wed, Jan 10, 2018 at 3:38 PM, Pablo Prietz notifications@github.com wrote:

There is also the option to jump to the next fixation using the thumb button on the left.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/pupil-labs/pupil/issues/1013#issuecomment-356728962, or mute the thread https://github.com/notifications/unsubscribe-auth/AIi_2yj8phXnXvvrc05X8JKZNnm4EqEsks5tJR-ygaJpZM4RZ53i .

papr commented 6 years ago

That is correct. I will think about how to implement this best without slowing down the other ui.

cpicanco commented 6 years ago

@performlabrit please, can you elaborate a bit more on how the playback speed would improve usability in your case?

gabrielDiaz-performlab commented 6 years ago

When trying to detect fixations, or judge the speed of an eye movement, it is important that time passes slowly, and at a steady rate. I can't hit the arrow keys fast enough, or steadily enough, to iterate through the frames at the speed I want. Holding down the arrow key is a reasonable fix for now, but the flexibility of a speed adjustment would be appreciated.

Gabriel J. Diaz, Ph.D. Assistant Professor Rochester Institute of Technology Chester F. Carlson Center for Imaging Science

Founder of PerForM Labs Click for demos. https://www.cis.rit.edu/performlab/

Office 2108, Building #76 Rochester, NY 14623 Office: (585) 475-6215 gabriel.diaz@rit.edu

On Thu, Jan 11, 2018 at 11:42 AM, Rafael Picanço notifications@github.com wrote:

@performlabrit https://github.com/performlabrit please, can you elaborate a bit more on how the playback speed would improve usability in your case?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/pupil-labs/pupil/issues/1013#issuecomment-356986692, or mute the thread https://github.com/notifications/unsubscribe-auth/AIi_22Wu3Yx4T7DZ2Yf9IMmRGBchmFlvks5tJjoFgaJpZM4RZ53i .

cpicanco commented 6 years ago

Thanks, now I got it. Eye inspection of fixations would be easier in slow motion.