Meshroom: Reconstruction fails: "Sensor width doesn't exist in the database"

[steren]

I get this error at the CameraInit step:

[21:11:02.213413][error] Sensor width doesn't exist in the database for image(s) :
[21:11:02.214411][error] image: 'MVIMG_20180809_200420.jpg'

• camera brand: Google
• camera model: Pixel XL

[21:11:02.214411][error] Please add camera model(s) and sensor width(s) in the database.

Do you know how I can add to the database?

[simogasp]

According to your settings (using binaries or bravely building from scratch) you should have a file named cameraSensors.db.
Despite the extension, it is just a plain text (csv) containing the information of different cameras/devices.
The format is (semicolon is the separator):

camera brand;camera model;sensorWidth_mm

According to this
https://www.devicespecifications.com/en/model/a95e3ed6
the Google Pixel XL sensor width is 6.25mm

So you just need to add the following line to your file using your preferred text editor (vim, emacs, sublime, atom, notepad, notepad++ whatever...)

Google;Google Pixel XL;6.25

possibly in alphabetical order, so after the line GE;GE X600;6.16.

[steren]

Thanks.
Is there a way to add this data to the file itself distributed with Meshroom so that the next users do not have to do this manually?
I could not find this file on GitHub

[simogasp]

It's in AliceVision
https://github.com/alicevision/AliceVision/tree/develop/src/aliceVision/sensorDB

I will update the file with your sensor (BTW did it work?). To date, the only way to keep it updated is for people to pull request the values of missing devices.
It would be nice to have a script that periodically harvests websites like
https://www.digicamdb.com/
or
https://www.devicespecifications.com/en
where all info are stored.

[steren]

Thanks. I will let you know if it worked later today.

I tried to look for this file but did not find it, mainly because it does
not have the same extension as the distributed file. I recommend renaming
in I your repo to match the name of the distributed file.
Also, I recommend adding this information somewhere in your docs.

On Fri, Aug 10, 2018, 07:51 Simone Gasparini [e-mail]
wrote:

It's in AliceVision

https://github.com/alicevision/AliceVision/tree/develop/src/aliceVision/sensorDB

I will update the file with your sensor (BTW did it work?). To date, the
only way to keep it updated is for people to pull request the values of
missing devices.
It would be nice to have a script that periodically harvests websites like
https://www.digicamdb.com/
or
https://www.devicespecifications.com/en
where all info are stored.

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[simogasp]

What's the name on your version?
It has been renamed in the rush for generating the binaries and maybe there is an incongruence.

[steren]

Sorry, I should have been clearer: I did not find this file in the
repository, thus I did not know how to send a Pull Request to this file.

On Fri, Aug 10, 2018, 08:16 Simone Gasparini [e-mail]
wrote:

What's the name on your version?
It has been renamed in the rush for generating the binaries and maybe
there is an incongruence.

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[steren]

It worked like a charm with this value. (see model)

[Sarngond]

I got this same error but my camera is in the db file. I don't know how to fix this. This is my error:

_[23:12:08.278957][error] Sensor width doesn't exist in the database for image(s) :
[23:12:08.281958][error] image: 'DSC02752.JPG'
- camera brand: SONY
- camera model: DSC-HX7V_

[simogasp]

@Sarngond from this page
https://www.digicamdb.com/specs/sony_cybershot-dsc-hx7v/
the sensor width is 6.16 mm.
So add the following line to your cameraSensor.db

Sony;Sony DSC-HX7V;6.16

[Urdwex]

Hi, I got the same error, the camera is already in the db file and I additionally added it to the db file.

[11:19:59.770947][error] Sensor width doesn't exist in the database for image(s) :
[11:19:59.771946][error] image: '14_05.jpg'
- camera brand: Canon
- camera model: Canon EOS 1200D

Canon;Canon EOS 1200D;22.3

[simogasp]

did u add it just after Canon;Canon EOS 1000D;22.2?

[Urdwex]

No, I added it between.

Canon;Canon EOS 1100D;22.2
Canon;Canon EOS 1300D;22.3

It doesn't work either when adding it after
Canon;Canon EOS 1000D;22.2

[Sarngond]

@simogasp
the line is already in the code. It looks like this though:
Sony;Sony Cybershot DSC HX60;6.16
Sony;Sony CyberShot DSC HX7V;6.16
Sony;Sony CyberShot DSC HX9V;6.16

[simogasp]

@Sarngond sorry i read your message too quickly... I guess you need to add that '-' so that the line reads

Sony;Sony CyberShot DSC-HX7V;6.16

The comparisons are case insensitive but they are not smart enough to catch these subtle variations and it really depends on each model what is written in the EXIF.

[simogasp]

@Urdwex I tested on AliceVision and it works fine for me with that line. Can you share just one image taken with that camera so I can test it?

[Sarngond]

@simogasp

[Sarngond]

@simogasp
I added the ' - ' to where it looks like:
Sony;Sony Cybershot DSC HX60;6.16
Sony;Sony CyberShot DSC-HX7V;6.16
Sony;Sony CyberShot DSC HX9V;6.16
but it still doesn't work. Also, when you say Alicevision, you are including Meshroom right?

[peter-vasut]

Today I have downloaded Meshroom and I have problem with Sony DCS-HX9V. When I selected model number in Meshroom log window, I noticed bunch of spaces after model name. I inserted following line to model database:

SONY;DSC-HX9V               ;6.16

and it works. Seems like image attached above contains those spaces too. (I have also sorted lines using sort utility, just in case, but that alone won't help. I don't even know if it's necessary.)

[simogasp]

@Sarngond i tried with your picture and the database with the dash ('-') and it works fine...
Meshroom uses AliceVision executables to run the pipeline, that's why I was talking about that.
Did u build meshroom and alicevision yourself or are u using the provided binary?

[simogasp]

@peto2006 thanks for noticing that! @Sarngond while we try to find a solution to this problem you can try to modify the line with the spaces

Sony;Sony CyberShot DSC-HX7V               ;6.16

(I hope I inserted the exact numeber of spaces, anyway from your log you can select with the mouse the number of spaces and correct in case)

Just to have all the info, which system are you working on? Windows, Mac, linux, versions etc?

[Sarngond]

@simogasp
I am using Windows 10. I downloaded the Meshroom zip folder. Thanks for trying to figure out my problem!

[Sarngond]

@simogasp @peto2006
The space trick worked for me, thanks!

[Urdwex]

@simogasp

[simogasp]

@Urdwex can you please check in the log if there are spaces after the model, ie

[11:19:59.770947][error] Sensor width doesn't exist in the database for image(s) :
[11:19:59.771946][error] image: '14_05.jpg'
- camera brand: Canon
- camera model: Canon EOS 1200D
                               ^^^^^ are there spaces after?

As you see from the discussion above that could be the issue. in that case u can add the spaces to the line (at least for now, while we investigate and figure out the issue).

[Urdwex]

@simogasp there are no spaces after the model, but a whole line missing before the next log entry. Could this cause the error?

`[11:23:35.251994][error] image: 'X_20_.jpg'
- camera brand: Canon
- camera model: Canon EOS 1200D

[11:23:35.252992][error] Please add camera model(s) and sensor width(s) in the database.
`

[simogasp]

no the empty line is always there (but we should maybe remove it from the code)
As a Hail Mary (today it's her holyday after all... :-) ) you can try this anyway

 Canon;Canon EOS 1200D              ;22.2

btw, in order to have all the info, are u using the provided binary or did you build it from scratch yourself? which OS and version?

[Urdwex]

Still won't work. I'm using the provided binary, using Windows 10 pro version 10.0.17.134 build 17134.

After checking the Images I noticed that all 1200D images have a yellow aperture icon, that they have no intrinsic parameters. But in the information panel in the image viewer, they have Exif data.

[peter-vasut]

@simogasp to provide more info: I have encountered problem on Windows 10, now I'm testing on Linux Mint 18.3, I'm using Meshroom build downloaded yesterday, Version 2018.1.0, with everything bundled.

this string seems to work:

Sony;Sony CyberShot DSC-HX9V               ;6.16

also this string works:

SONY;DSC-HX9V               ;6.16

@Urdwex try restarting program after you correctly change and save cameraSensors.db. (In my case it ignored changes until restart.) If I don't have my sensor size in database, I also get yellow aperture icon, even if images contain some EXIF data. After I put my camera in database (and restart program), this icon disappears. If I put this Canon;Canon EOS 1200D;22.2 into cameraSensors.db, it properly loads your image.

[Urdwex]

@peto2006 I did resart the program after all the changes.
After reading your strings I also tried it like this and now it works.
CANON;EOS 1200D;22.2

Thank you for helping.

[tobyplowy]

EDIT I fixed the problem by restarting the program.

@simogasp I also have the problem, and I can't seem to get it working using what you did.
I added this asus;Nexus 7;2.74 to my database but it is not working :/

Here's my tablet that I used to take the pictures. https://www.devicespecifications.com/en/model/5aac2958
The camera is bad but I do not own a good camera, I plan on buying one if this program works well.

Also I put the asus;Nexus 7;2.74 at the complete top just above Acer;Acer CE-5330;5.75 not sure if it matters.

Please if someone knows how I can get this working that would be amazing.

[tobyplowy]

Oh it seems to work after restarting the program, nevermind sorry.

[nickdiamant]

Hey everyone, I have a fix to a similar error. I had the following error:

[error] Sensor width doesn't exist in the database for image(s) :
[error] image: 'IMG_2455'

camera brand: Canon
camera model: Canon EOS Rebel T6
[21:11:02.214411][error] Please add camera model(s) and sensor width(s) in the database.

I modified the file Meshroom-2018.1.0/aliceVision/share/aliceVision/cameraSensors.db so that it had the line "Canon;Canon EOS Rebel T6;22.3" in it (in the appropriate alphabetical location), and it worked.

[MuskofEphesus]

I have a Canon EOS Digital Rebel XTi and adding (Canon;Canon EOS DIGITAL REBEL XTI;22.2) under (Canon;Canon EOS Rebel T6s / 760D;22.3) seems to fix the error; although I've yet to pass the FeatureExtraction phase. I'm running Meshroom with a GeForce GTX 745 (388.13) on Windows 7.

[polynaught]

Hi,
I'd like to see the sensor width of the Motorola G5 added to the database.
I cannot find it online (neither devicespecifications.com nor wikipedia state anything relevant) - the only thing one can find is the MP of the G5. G5S, G5S Plus, G5 Plus seem to use totally different CMOS... :(
Any ideas where to find this data?

[ChemicalXandco]

@polynaught see my comment on #262

[polynaught]

@ChemicalXandco thx for the quick reply. I'm definitely going to use a better camera for future trips to the woods. But that calibration feature you mentioned sounds nice!

[eMPee584]

Any ideas where to find this data?

There's an Android API SENSOR_INFO_PHYSICAL_SIZE; several apps displaying that info exist here on github...

[natowi]

@polynaught If you don´t want to wait for the next release, you can search for camera replacement parts on Aliexpress for Motorola Moto G5 and maybe a reseller like this one (you can contact the store) can give you the sensor information.

[mj1911]

Natowi, good idea. I tried Meshroom with my low-end LG Tribute 5 phone on an AMD Kabini-core (open-CL) CPU on Win7x64... no go. Nothing lists the sensor size anywhere. Checked eBay for replacements; only finding no-spec ones. So researched low-cost 5MP CMOS camera sensors with similar resolutions. They had pixel-widths ranging from 1.12µm to 2.2µm... times 2592 pixels = 2.9 to 5.7mm. Assume 1% more physical. Plugged 3.5mm into the CSV file, and well, it's been running for over a day now on step 4. Total CPU time used by Meshroom: 4h 33m. Maybe this would work with a better camera, and better computer.

[natowi]

@mj1911 A minimum resolution of 8-10MP is recommended. Anything less will be hard to compute as you can see. You can try to add AKAZE as a Describer Type in the FeatureExtraction Node and set the Describer Preset to high or ultra.

[lilithebowman]

Where is the camera sensor database to contribute to on GitHub? I tried searching for the file name both in Alicevision and Meshroom repositories and found nothing. :|

cameraSensors.db is what I searched for but I only found references to it...

[natowi]

@eanbowman The sensordatabase.db is a copy of https://github.com/openMVG/CameraSensorSizeDatabase
https://github.com/openMVG/CameraSensorSizeDatabase/wiki

It is located for this project in https://github.com/alicevision/AliceVision/tree/develop/src/aliceVision/sensorDB

[AncientWire]

Thank you for this post. I have a Google Pixel 2 XL.
https://www.devicespecifications.com/en/model/231a461a
does not show a sensor width, so I used 6.25 that the previous Pixel has. I looked at the EXIF data from my images and found the way the phone is named, plugged all of that into the db as suggested and it worked perfectly. Thank you!
Google;Pixel 2 XL;6.25

[natowi]

@AncientWire The Pixel 2 uses the IMX179.
It has a Type 1/3.2" sensor -> ~4.5mm width.

[frydzielson]

I confirm that whitespaces are the reason for this issue. The easiest way to check that is to just view the file exif data and check how many spaces are there. I recommend Exif pilot or similar program for this. In windows 10 file properties white spaces are not visible.

[tegbrookes]

Does anyone have the correct database information for an Olympus OM-D EM-1 Mark II, please? I've tried adding the information obtained from the EXIF file, but it throws up an error (not found in the camera database). This is what I added:
Olympus;E-M1markII;17.3

This is what was shown in the error message:

    - camera brand: OLYMPUS CORPORATION
    - camera model: E-M1MarkII

I have tried as many variationson this as I could think of, but none have worked.
Many thanks.

[natowi]

@tegbrookes did you try OLYMPUS CORPORATION;E-M1MarkII;17.3 ?

[tegbrookes]

@tegbrookes did you try OLYMPUS CORPORATION;E-M1MarkII;17.3 ?

Hi natowi, yes we tried that, plus variations with spacing between the EM-1 and MarkII, but nothing worked.

[tegbrookes]

Hi natowi,

here is an example image with the EXIF data

[natowi]

@tegbrookes there is some error with the EXIF data of your image. Create a copy of your image dataset, remove Exif data from your images and add OLYMPUS CORPORATION for make and E-M1MarkII for model.

I assume this problem is related to additional Exif-field values (lens model or camera id,...).

[tegbrookes]

Hi natowi,

many thanks for your suggestion. We'll give that a go and see what happens. I have tried modifying the EXIF data to match a EM-1 (not the Mark II), and that is accepted. Just making a model with that data. We'll also try removing all the data and add only the camera make and model,

Many thanks

[jlmccuan]

My camera is listed as Fulifilm;Fujifilm FinePix S5100 Zoom;5.33 in the db. The error says "- camera brand: FUJIFILM - camera model: FinePix S5100". The metadata lists "Make FUJIFILM Model Finepix S5100" Any ideas as to how to make it work? I've tried changing the brand to all caps, "FUJIFILM" and I've tried deleting "Zoom" and I've tried doing both.

[jlmccuan]

Here is one of the pics

[tegbrookes]

Hi jlmccuan,

have you tried adding this line to the database?

Fulifilm;FinePix S5100;5.33

Kind regards

On Tue, Nov 13, 2018 at 8:53 PM jlmccuan [e-mail] wrote:

My camera is listed as Fulifilm;Fujifilm FinePix S5100 Zoom;5.33 in the
db. The error says "- camera brand: FUJIFILM - camera model: FinePix
S5100". The metadata lists "Make FUJIFILM Model Finepix S5100" Any ideas as
to how to make it work? I've tried changing the brand to all caps,
"FUJIFILM" and I've tried deleting "Zoom" and I've tried doing both.

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[jlmccuan]

Yes. I also tried it with Fujifilm in all caps. I'm assuming all you do is edit the file and restart the program.

[tegbrookes]

That is what's supposed to happen, but, like you, I haven't had any success trying to add a camera. I did read elsewhere that there can be a number of spaces at the end of the camera name, and that these spaces are not shown in the Windows 10 EXIF information. I'm temped just to try removing all the cameras in the list bar the one I'm trying to add, and then adding a new line with exactly the same text and just one additional space at the end of the entry for, say, 10 lines.

[jlmccuan]

I've got more than 6 hours in trying different combinations. Frustrating when it's right there and you get the error. I even went in and copy and pasted the EXIF data into the db and no joy.

Any help out there?

[jlmccuan]

FINALLY SUCCESS!!! Downloaded EXIFPilot. Copied and pasted the data from that program and it works. YAY!

[tegbrookes]

Fantastic, I'l give this a try, too.

[tegbrookes]

You must have an Nvidia graphics card to make Meshroom work - do you have
one installed?

On Thu, Nov 15, 2018 at 8:33 PM jlmccuan [e-mail] wrote:

Hit my next roadblock. Got an error for the program needing a CUDA 2.0 GPU
compatibility. Is there any workaround for this?

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[mymusicmanager]

LG Phones not added yet.

For all LG G6 (LG-H870) users, add LG Electronics;LG-H870;4.71 to make it work

[VictorGallagher]

I have a Fuji FinePix 5700, it is listed in the database but was not recognized. To solve the problem I put this as the first entry for Fuji cameras and it worked just fine.
FUJIFILM;FinePix S5700 S700;5.75

[asmarcz]

For Nokia 8 I used
HMD Global;Nokia 8;8.3
;Nokia 8;8.3

[magdesign]

For LG Nexus 5 (https://www.devicespecifications.com/en/model/3dfd2923):

LGE;Nexus 5;4.54

[soichih]

I've added the following to share/aliceVision/cameraSensors.db

motorola;moto x4;4.0

But, when I restart meshroom, I am still getting the following error message.

[21:04:43.142513][error] Sensor width doesn't exist in the database for image(s) :
[21:04:43.142680][error] image: 'IMG_20181215_204024844.jpg'
    - camera brand: motorola
    - camera model: moto x4

What am I doing wrong? Is share/aliceVision/cameraSensors.db not the file where I need to be adding this? Do I need to run something after I update cameraSensors.db?

[natowi]

@soichih As you can read in the previous posts, this is a common problem.
Some cameras use extra EXIF fields which cause an error when importing images to Meshroom. To fix this problem, strip all uncommon EXIF data and add Make and Model. Now the Meshroom import should work. You can use Exif tools like Exif Editor or ExifToolGUI.

[soichih]

@natowi Thanks!

I did the following to remove exif data and meshroom seems to be running now.

$ sudo apt install exittool
$ for i in *.jpg; do echo "Processing $i"; exiftool -all= "$i"; done

I probably need to reset camera brand/model field, but I will see what happens without them.. ;(

UPDATE...

I can start meshroom process, but it got stuck on the first step.. I don't think it will work without brand/model info..

I've reset them with this.

for i in *.jpg; do echo "Processing $i"; exiftool -make=motorola -model="moto x4" "$i"; done

And I still have the entry in the cameraSensor.db

motorola;moto x4;4.0

But, now I am getting the previous error message I was getting.

[14:02:49.430676][error] Sensor width doesn't exist in the database for image(s) :
[14:02:49.430706][error] image: 'IMG_20181215_204028757.jpg'
    - camera brand: motorola
    - camera model: moto x4

[natowi]

@soichih you can attach a sample image, and I´ll take a look. This is the same problem tegbrookes had.

[soichih]

@natowi

Here is one of my original image. It just a photo taken by my phone; Moto x4.

[natowi]

@soichih I just added your image to Meshroom using motorola;moto x4;4.0 and there are no problems at all.

[daniel321]

I am having the same problem with the galaxy j1 ace, but "https://www.devicespecifications.com/en/model/a30b3722" and "https://www.sammobile.com/devices/galaxy-j1-ace-ve/specs/SM-J111M/"
mention no "sensor size", any ideas ?

• camera brand: samsung
• camera model: SM-J111M

[simogasp]

@daniel321 It's actually hard to find any information, even about the actual chip used.
We can only guess that is a Samsung camera and according to the image resolution (5MP 2592 x 1944) it may be the S5K4E6 1/4" from this table https://en.wikipedia.org/wiki/Samsung_CMOS
Being a 1/4" sensor you can try to use 3.60 as sensor width. (https://en.wikipedia.org/wiki/Image_sensor_format#Table_of_sensor_formats_and_sizes).
That could be an honest guess for the image width. Please try with that one and see the results. In case we can add it to the "official" database

[daniel321]

thanks, 3.60 seems to work reasonably well.

[JasonDalton]

The version of the database from the Zip download was well behind the latest in the src dir here: https://github.com/alicevision/AliceVision/blob/develop/src/aliceVision/sensorDB/cameraSensors.db
I found the line for my camera (Google Pixel 3) and added it to my local cameraSensors.db file, which worked fine.

[Razeu]

Here is the one for Huawei Nexus 6p
NB. no huawei in the camerasensor.db at all.

Huawei;Nexus 6P;6.25

[MatthewIsAwesome]

I cannot find the sensor size for the moto g6 play anywhere. please help
https://www.devicespecifications.com/en/model/08a34984
https://www.motorola.com/us/products/moto-g-play-gen-6

[natowi]

@MatthewIsAwesome Sometimes there are no released sensor details. Meshroom can estimate the needed values.

[MatthewIsAwesome]

@natowi how can I get it to estimate then? It's returning the above error at the moment

[natowi]

@MatthewIsAwesome remove model and make info from the metadata, import the image to Meshroom then hover over the yellow icon.

[MatthewIsAwesome]

@natowi thank you - it's working now!

[natowi]

@MatthewIsAwesome Can you share your estimated sensor width, so we can add it to the db?

[fitzmurphy]

I've just installed Meshroom and have run a few tests with my phone (Google Pixel 2) which seem to work just fine. I took some additional pictures with my Sony Cybershot HX9V and am getting the same error about needing to add the camera to cameraSensors.db. I've checked - and the camera is actually already IN cameraSensors.db (twice as a matter of fact). I also dumped the exif data for one of the images and there are no trailing spaces or any metadata related to the camera besides the following:

• camera brand: SONY
  
  
  
  • camera model: DSC-HX9V
  
  

The exif dump shows the following:
MAKE : SONY
Camera Model Name: DSC-HX9V

Are there any other potential solutions to this issue that anyone has found?

[natowi]

Are there any other potential solutions to this issue that anyone has found?

@fitzmurphy Some cameras use extra EXIF fields which cause an error when importing images to Meshroom. To fix this problem, strip all uncommon EXIF data and add Make and Model. Now the Meshroom import should work. https://github.com/alicevision/meshroom/issues/397#issuecomment-464125754 You can use Exif tools like Exif Editor or ExifToolGUI.

[shikyojojo]

ok I have a sony xpheria xz1 and the error i get is
[14:42:31.206003][warning] Sensor width doesn't exist in the database for image(s):
- camera brand: Sony
- camera model: G8342
so what would my information be to plug in?

[fitzmurphy]

I was able to fix this particular error message by installing a fresh copy
and ensuring I had the latest copy of the camera database / file.

On Sat, Dec 14, 2019, 2:47 PM shikyojojo [e-mail] wrote:

ok I have a sony xpheria xz1 and the error i get is
[14:42:31.206003][warning] Sensor width doesn't exist in the database for
image(s):

• camera brand: Sony
• camera model: G8342
  so what would my information be to plug in?

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[natowi]

@shikyojojo https://github.com/alicevision/meshroom/wiki/Add-Camera-to-database

[BlenderBurst]

Hello. I have the LG g7 thinQ Phone. Does anyone know what name I need to put in the file?
Thanks,

(edited)

[BlenderBurst]

Hello,
Sorry I meant, I have the LG g7 thinQ. Not the g8.

Here is the phone I have, but I still can't find what to put in the file.
https://www.devicespecifications.com/en/model-camera/929648fc

[BlenderBurst]

Hello. I Fixed the Problem!
I am using the LG G7 thin Q Phone to take the photos. Here is the Text I put into the cameraSensors.db Document:

LGE;LM-G710;1/3.1

I placed it right underneath the text, Leica;Leica X2;23.6

[natowi]

1/3.1

wrong format, you need to look up the sensor width from this.

[BlenderBurst]

Oh ok. Can you help? I can't find anything online.

I have tried to do 2 photoscans, and they both turned out to be weird shaped objects. So yeah, it doesn't seem to be working.

[natowi]

@BlenderBurst Try 4.5

[BlenderBurst]

Ok, Thanks. I am doing another Photoscan right now, and I will let you know if it worked or not. Thanks!

[BlenderBurst]

@natowi Hey it worked great this time! Thanks for your help!