Answered

Choroma Noise

I sometimes have to film dark areas or black wall, but they are covered with serious chroma noise. Is matterport not capable of dark area or black color in general? Is there going to be any updated solution for this in the near future?

Thank you

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  • Hi there @eric! Would you mind posting an example screenshot of what you're reporting? I understand this to be noise in low-light conditions, but always good to have a reference to look at. Thank you!

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  • Thank you for your reply, Scott. I have been trying to upload the image here but the loading bar says it is undefined%. As you mentioned, my problem is a noise in low-light condition. I would like to know whether there is a solution for this. I would really like to share the image with you but it does not work unfortunately... Also, I found a bug in VR download that if you have the cardboard and Gear VR application at the same time, Matterport program automatically loads VR to Gear VR even though I click on the Cardboard image. In that page, matterport also mentions that GearVR is compatible with Galaxy S5 and above but this is wrong. It is compatible with Galaxy S6 above and Galaxy Note 5 above. Thank you Scott! and I am looking forward to hearing back from you regarding low-light condition issue.

    Best,

    Eric

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  • Thank you for your reply, Scott. I have been trying to upload the image here but the loading bar says it is undefined%. As you mentioned, my problem is a noise in low-light condition. I would like to know whether there is a solution for this. I would really like to share the image with you but it does not work unfortunately... Also, I found a bug in VR download that if you have the cardboard and Gear VR application at the same time, Matterport program automatically loads VR to Gear VR even though I click on the Cardboard image. In that page, matterport also mentions that GearVR is compatible with Galaxy S5 and above but this is wrong. It is compatible with Galaxy S6 above and Galaxy Note 5 above. Thank you Scott! and I am looking forward to hearing back from you regarding low-light condition issue.

    Best,

    Eric

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  • Hi there @eric!

    First off, I've sent your note to the VR folks to investigate, thanks!

    Regarding the noise, that's going to be trickier, as the camera and vision software is optimized for common residential and commercial environments, with adequate lighting. There are some things we may be able to do, but the best place to start is:

    ...Can you tell us more about why you're using the camera is dark areas? Is there just no lighting available/present? Or are there reasons why you can't turn on full lighting?

    ...This also might be worth adding as a Product Suggestion, so we can gauge how big a need this is for other users, too, and understand what they are trying to do.

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  • Hello @eric

    I'm sorry to hear you are having trouble running both the Cardboard and Gear VR versions of our app.

    We have tested using both versions of our app on a single device a number of times and with most phones it should work just fine. That said, there is a known issue with some versions of Android that can make things a bit more complicated.

    In some versions of Android, it attempts to be helpful and will automatically set your default app the first time you use a link. Once a default app has been selected any new link you click on will default to whatever app you opened the first one with. For example, if the first time you used the VR button, you opened the GearVR app, Android will continue to use the Gear VR app even if you try to open it via Google Cardbaord.

    To correct this you will need to reset your default app. You can find a guild for this on our support website here: https://support.matterport.com/hc/en-us/articles/228469968

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  • Hello @MP-Scott

    I apologize for the late reply. I have been really business for the past couple of weeks. The reason that I am shooting at a low-light setting a lot is because I work mostly with galleries and museums for recording their exhibitions. When it comes to contemporary art exhibition setting, many artists prefer to set their shows under a low-light environment. This is when I have a difficult time explaining gallery and museum clients since there are only limited exhibitions that we can film for them due to the light setting. Plus, if I change the light setting for the lowly lit exhibition space; then artists and museum curators would hate it since we are not fully restoring the exhibition experience. I guess my case is complicated since I am adopting the MP technology in a non-real estate industry. Please let me know if there are ways from your VR team to improve our showcase quality filmed in low-light settings.

    I appreciated it a lot and thank you very much for your help! Looking forward to closely working with Matterport down the road.

    Best,

    Eric Yoon

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  • I got it ! thank you very much!

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  • Hi there @eric! Got it, that makes sense. That's a bit outside our normal use case, but I might have some good news for you:

    Matterport is working on a new firmware version. Among some of the other benefits is improved color/light handling, so there's a decent chance that you'll get see some better low-light results from this, too. That should be out in the near future, love to hear your experiences/thoughts when it launches!

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  • Hi @eric, @Matterport-Scott, I've been experiencing the same thing today, while shooting a bar. I wanted to shoot it at night time as this will be the time people are attending the bar. The shoot is obviously a test shoot (don't go out of the main room ;-)) and the issue is that the bar has many softer lights, which makes it a cosy, but darker room. See the showcase: https://my.matterport.com/show/?m=MXQRPNRRjo7

    My observations:

    1. MP is automatically adjusting the light setting due to darkness in the room

    2. Like a normal camera when providing more ISO (assume?) the image gets less sharp

    3. Light bulbs become extremely bright due to overlight setting

    The coincidence is that just wen I wanted to start the scan, I got the message of firmware upgrade...regret ignoring that and not doing that straight away, but nice to see if I do the same scan again tomorrow what will be the improvement wrt lights.

    In any case, is there something else that I can do to improve the scan quality (sharpness, less overlight), while maintaining the cosy "i'm in the bar at night time" ambiance in the scan? Appreciate any suggestion!

    Thanks!

    Matthijs

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  • I had a shoot at a History Museum and the exhibit is VERY DARK with bright overhead lighting.. It was suggested to me by Matterport Support to reshoot with lights off to get a better model. Here is the link: http://fivedmedia.com/3d-model/lowriders-hoppers-hot-rods-car-culture-northern-new-mexico/ I'm supposed to be going back soon to shoot with bright lights off so I'm curiously following the feedback you're getting here.

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  • Hi Lisa, have you updated the firmware to the most recent version when you shot the exhibition?

    Thank you

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  • It was not updated when I did the shoot but will be when I go back to shoot with no lights. Think it will make a big difference?

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  • I am not totally sure, but there should be an improvement in color interpretation. Shooting under a strong light setting is another problem the matterport camera needs to tackle ASAP. A lot of places have strong light settings than I have thought. I see some problems in your model with this light issue as well.

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  • Plus I am asking matterport whether they have improved this strong light issue in this firmware update.

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  • Please post what you find out !

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  • Hi @Lisa Hinson, curious to know how the shoot with lights off will go. Do you have more information about this suggestion, as I would expect more added light by the MP equipment to compensate for the darkness, further deteriorating the quality of the image? Let's keep each other updated! Thnx

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  • Hi @eric, what do you mean exactly with the 'strong light issue'? (1) The fact that bright lights are too bright, or (2)that MP equipment compensates light too much in dark areas?

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  • Yes! Will try again after the Firmware update tomorrow or Sunday and will let you know

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  • I'll touch base once I reshoot

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