Signal to Noise Ratio

Ғылым және технология

This video describes a critical property of images collected with a microscope - the signal to noise ratio. It also provides lots of tips for increasing signal and reducing noise in your images. Enjoy!
References & Resources:
Photon efficiency of imaging modalities: DOI: 10.1111/j.1365-2818.2007.01861.x
Maximizing precision of intensity measurements: DOI: 10.1083/jcb.200903097
Detector Noise: www.microscopyu.com/tutorials...
Chapters:
0:00 Intro
0:58 Why SNR is critical
2:03 Poisson noise
3:43 Detector noise
4:28 Collecting more signal
8:17 Reducing noise
10:37 High contrast is not the same as high SNR!

Пікірлер: 20

  • @brian_kirk
    @brian_kirk3 жыл бұрын

    Excellent videos! Short and sweet with appropriate visuals to help understanding. Please do more of these! :D

  • @DaruoshAghajaney
    @DaruoshAghajaney4 жыл бұрын

    What a brilliant lecture. Thank you.

  • @olli1492
    @olli14923 жыл бұрын

    Very good Job explaining! This should be higher up in the search list.

  • @joelevi9823
    @joelevi98233 жыл бұрын

    Again..your videos are just amazingly explained so clearly

  • @Microcourses

    @Microcourses

    3 жыл бұрын

    Thank you so much 😀

  • @williamflanagan8003
    @williamflanagan80033 жыл бұрын

    Another top quality vid.

  • @kunlin579
    @kunlin5794 жыл бұрын

    say you're using a 60X objective with a wide field, would binning decrease the resolution? Pixel size w/o binning is probably going to be in the neighborhood of 125nm or so depending on the configuration, and binned pixels will be at least double that, what do you recommend?

  • @Microcourses

    @Microcourses

    4 жыл бұрын

    Optimal pixel size depends on the numerical aperture of the objective lens (in addition to magnification - there is a microcourse on numerical aperture if you aren't familiar with it) and what you are trying to image (ie, diffraction-limited objects would require a different pixel size than whole cells), so there isn't a standard recommendation. I recommend you post the question on our microscopy discussion forum at forum.microlist.org - it's quite active so you should get some answers there!

  • @damiancavazos7043
    @damiancavazos70436 ай бұрын

    Thank you for your videos

  • @davidkoleckar4337
    @davidkoleckar43373 жыл бұрын

    awesome, thank you :]

  • @Walaa918
    @Walaa9183 жыл бұрын

    Thank you

  • @shivalidongre4123
    @shivalidongre41234 жыл бұрын

    This was great! Could you please post a video on Fourier transform?

  • @Microcourses

    @Microcourses

    4 жыл бұрын

    Thanks! It's on the list of future videos. In the meantime, Bo Huang's video in the iBiology microscopy lecture series is very good.

  • @shivalidongre4123

    @shivalidongre4123

    4 жыл бұрын

    @@Microcourses thank you! I will check it out

  • @taoliu6334
    @taoliu63344 жыл бұрын

    The curve at 1:30 under noise was used in today's online workshop over Zoom!

  • @Microcourses

    @Microcourses

    4 жыл бұрын

    Good eye Tao! Talley made those slides, and we all use them. :)

  • @Gruemoth
    @Gruemoth3 жыл бұрын

    🦉

  • @dummag4126
    @dummag41268 ай бұрын

    increase the subject illumination!!!

  • @Microcourses

    @Microcourses

    7 ай бұрын

    Sure, with the trade-off of increased photobleaching, and phototoxicity in live samples.

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