Camera metadata?

[brytflights]

Hey all,

Curious if there is recorded metadata anywhere on the dji clips. I have my flight log on the ap but I can't seem to find any camera data. Please point me in the right direction if you can.

Thanks!

 

[Kilrah]

If you have "Video caption" turned on in the app you'll get subtitle files with some metatata saved on the card along the video file.

 

[Luis Morales]

photos have

Capture Time (HH:MM:SS)
Capture Date (DD MMM YYYY)

dimensions
exposure
Focal Length
ISO Speed Rating
Flash (if it fired or not, it always says did not fire), i dont know why this is here, future camera with flash? or for the handheld gimbal?
Make (DJI)
Model (FC350)
Lens
GPS

thats all the metadata in the photos.

 

[The Editor]

J

photos have

Capture Time (HH:MM:SS)
Capture Date (DD MMM YYYY)

dimensions
exposure
Focal Length
ISO Speed Rating
Flash (if it fired or not, it always says did not fire), i dont know why this is here, future camera with flash? or for the handheld gimbal?
Make (DJI)
Model (FC350)
Lens
GPS

thats all the metadata in the photos.

That's just standard generic metadata for jpegs. That's why there is a flash field in there even though it will never change from "No"

 

[Luis Morales]

J

That's just standard generic metadata for jpegs. That's why there is a flash field in there even though it will never change from "No"

ah i see, i found it weird as i have a canon rebel that does that have that field in raw. but makes sense my reflex is from 5/6 years ago and i have not seem newer cameras (mine does raw not dng)

 

[brytflights]

Excellent. I figured there must be something I was missing. Thanks for the info!

 

[Scotflieger]

photos have

Capture Time (HH:MM:SS)
Capture Date (DD MMM YYYY)

dimensions
exposure
Focal Length
ISO Speed Rating
Flash (if it fired or not, it always says did not fire), i dont know why this is here, future camera with flash? or for the handheld gimbal?
Make (DJI)
Model (FC350)
Lens
GPS

thats all the metadata in the photos.

There is also Lat/long position recorded and visible in Adobe Bridge and Lightroom.

 

[Luis Morales]

There is also Lat/long position recorded and visible in Adobe Bridge and Lightroom.

yes pointed in the original list as GPS i only see a single field for them

 

[IrishSights]

I see long, lat and altitude (AGL) in the EXIF meta data

 

[Milton]

I see long, lat and altitude (AGL) in the EXIF meta data

Ok, and, Can I change Altitude AGL to GPS Altitude or Sea Level?

 

[IrishSights]

Ok, and, Can I change Altitude AGL to GPS Altitude or Sea Level?

You can only change EXIF metadata in 3rd party software or editor, I doubt there will ever be a way of changing the data in camera.

 

[Milton]

You can only change EXIF metadata in 3rd party software or editor, I doubt there will ever be a way of changing the data in camera.

really a shame because help in assemblies orthophoto, OK.

 

[IrishSights]

really a shame because help in assemblies orthophoto, OK.

I can and have done (but dont now) use the geotaged metadata in Agisoft Photoscan Pro for orthomossaics but the gps references are only accurate to the usual few metres. Ground Control points makes for much more accurate georefed orthomossaics IMO.

 

[IIIDaemon]

Hey all,

Curious if there is recorded metadata anywhere on the dji clips. I have my flight log on the ap but I can't seem to find any camera data. Please point me in the right direction if you can.

Thanks!

.
...bryt, is this the data your looking for..? the video & flight rec/logs are packed full of 'intel', try MediaInfo: www.http://mediaarea.net/en/MediaInfo
.
IIIDaemon
www.GasRecovery.net


General
Complete name : x:\xxxxxxx\xxxxxxx\xxxxxxx
Format : MPEG-4
Format profile : JVT
Codec ID : avc1
File size : 3.91 GiB
Duration : 9mn 20s
Overall bit rate mode : Variable
Overall bit rate : 59.9 Mbps
Encoded date : UTC 2015-xx-xx xx:xx:xx
Tagged date : UTC 2015-xx-xx xx:xx:xx
Comment : 0.9.134
©xyz : +XX.xxxxxxxxxxx.xxxxxxxxx+0.000
©xsp : +0.00
©ysp : +0.00
©zsp : +0.00
©fpt : -2.80
©fyw : -4.30
©frl : +0.40
©gpt : +0.00
©gyw : -3.80
©grl : +0.00

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=8
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 9mn 20s
Bit rate mode : Variable
Bit rate : 60.0 Mbps
Width : 4 096 pixels
Height : 2 160 pixels
Display aspect ratio : 1.896
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.283
Stream size : 3.91 GiB (100%)
Title : DJI.AVC
Language : English
Encoded date : UTC 2015-xx-xx xx:xx:xx
Tagged date : UTC 2015-xx-xx xx:xx:xx
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Color range : Limited

 

[Ian McBean]

.
...bryt, is this the data your looking for..? the video & flight rec/logs are packed full of 'intel', try MediaInfo: www.http://mediaarea.net/en/MediaInfo
.
IIIDaemon
www.GasRecovery.net


General
Complete name : x:\xxxxxxx\xxxxxxx\xxxxxxx
Format : MPEG-4
Format profile : JVT
Codec ID : avc1
File size : 3.91 GiB
Duration : 9mn 20s
Overall bit rate mode : Variable
Overall bit rate : 59.9 Mbps
Encoded date : UTC 2015-xx-xx xx:xx:xx
Tagged date : UTC 2015-xx-xx xx:xx:xx
Comment : 0.9.134
©xyz : +XX.xxxxxxxxxxx.xxxxxxxxx+0.000
©xsp : +0.00
©ysp : +0.00
©zsp : +0.00
©fpt : -2.80
©fyw : -4.30
©frl : +0.40
©gpt : +0.00
©gyw : -3.80
©grl : +0.00

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=8
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 9mn 20s
Bit rate mode : Variable
Bit rate : 60.0 Mbps
Width : 4 096 pixels
Height : 2 160 pixels
Display aspect ratio : 1.896
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.283
Stream size : 3.91 GiB (100%)
Title : DJI.AVC
Language : English
Encoded date : UTC 2015-xx-xx xx:xx:xx
Tagged date : UTC 2015-xx-xx xx:xx:xx
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Color range : Limited

Where can I get the decode of:
©xsp : +0.00
©ysp : +0.00
©zsp : +0.00
©fpt : -2.80
©fyw : -4.30
©frl : +0.40
©gpt : +0.00
©gyw : -3.80
©grl : +0.00

 

[niki]

To me those look like position and orientation of the drone and or the camera.

 

[bluelight.support]

I can and have done (but dont now) use the geotaged metadata in Agisoft Photoscan Pro for orthomossaics but the gps references are only accurate to the usual few metres

So what process are you using now ?

 

[IrishSights]

So what process are you using now ?

Like the following sentence in my post says, which you didnt quote, I use GCPs.

Actually in reality it depends on the client needs...

I still use the drone GPS if the client does not need high (or any spatial) accuracy.

For other clients who only need the data to lineup with publiclly available base imagery I will georeference based on known points visible in the base imagery and my orthos in QGIS.

For the really accurate stuff the client puts in their own GCPs which I use. I always put in check markers measured 10-20m apart so I can check the horizontal accuracy scattered throughout the mapping area. It's always been accurate when checked in the orthomossaic in Photoscan Pro. Still do it though.

 

[bluelight.support]

I remember that - i just wondered if you did anything different, as i still use the exif data for the first run and initial scans to check data etc in the field, then do a re-calculate with the GCP's without using exif data.