Pix4D Desktop reads information from the image EXIF data. It reads both standard EXIF tags and Pix4D defined camera XMP tags.
Some tags are required in order to be compatible with Pix4D Desktop:
- All projects
- Exif.Image.Make
- Exif.Image.Model
- Exif.Photo.FocalLength
- Exif.Photo.DateTimeOriginal
(EXIF) Standard tags
| Key | Value example | Type | Meaning |
|---|---|---|---|
| Exif.Image.Make | Canon | String | The camera manufacturer name |
| Exif.Image.Model | Canon EOS REBEL SL1 | String | The model name of the camera |
| Exif.Image.BlackLevelRepeatDim | 2 2 | Short | Dimension of dark current matrix |
| Exif.Image.BlackLevel | 320 198 275 201 | Short | Dark current, matrix of dimension given in Exif.Image.BlackLevelRepeatDim in row major |
| Exif.Photo.BodySerialNumber | 092172012311 | String | The serial number of the camera |
| Exif.Photo.FocalLength | 20/1 | Rational | Focal length [mm] Note: If Exif.Photo.FocalLength is not found, Exif.Photo.FocalLengthIn35mmFilm is used to calculate the focal length |
| Exif.Photo.DateTimeOriginal | 2011:02:10 14:11:27 | String | Date and time of image acquisition in the format yyyy:mm:dd HH:MM:SS |
| Exif.Photo.SubSecTimeOriginal | 27 | Short | Time of image acquisition: sub-second part |
| Exif.Photo.FocalPlaneXResolution | 5184000/894 | Rational | Pixels per unit, used for sensor and pixel size |
| Exif.Photo.FocalPlaneYResolution | 3456000/597 | Rational | Pixels per unit, used for sensor and pixel size Note: if FocalPlaneXResolution / FocalPlaneYResolution are not found, FocalLength and FocalLengthIn35mmFilm are used to calculate the sensor/pixel size |
| Exif.Photo.FocalPlaneResolutionUnit | 4 | Short | Unit for Exif.Photo.FocalPlane[XY]Resolution: 2 = inch 3 = cm 4 = mm |
| Exif.Photo.ExposureTime | 1/1000 | Rational | Exposure time [seconds] |
| Exif.Photo.FNumber | 28/10 | Rational | Aperture F number |
| Exif.CanonSi.ApertureValue | binary | For Canon cameras, this non-standard tag takes precedence over Exif.Photo.FNumber since it contains some effective value for the f-number. Note that the number has a special binary format. | |
| Exif.Photo.ISOSpeedRatings | 400 | Short | ISO film speed of the camera Note: If Exif.Photo.ISOSpeedRatings is not found, Exif.Photo.ISOSpeed is used |
| Exif.Photo.LensModel | EF40mm f/2.8 STM | String | Describes the lens (can be empty) |
| Exif.Photo.LensSerialNumber | 1055005868 | String | The serial number of the lens |
| Exif.GPSInfo.GPSLatitude | 46/1 22059917/1000000 | List of Rational | GPS degree and/or minute and/or second. In some formats, the list of rationals is shorter and the seconds and/or minutes part are ignored. |
| Exif.GPSInfo.GPSLatitudeRef | N or S | String | GPS reference north or south |
| Exif.GPSInfo.GPSLongitude | 46/1 25642511/1000000 | List of Rational | GPS degree and/or minute and/or second. In some formats, the list of rationals is shorter and the seconds and/or minutes part are ignored. |
| Exif.GPSInfo.GPSLongitudeRef | E or W | String | GPS reference east or west |
| Exif.GPSInfo.GPSAltitude | 1205/100 | Rational | Mean Sea Level altitude (GPS altitude) |
| Exif.GPSInfo.GPSAltitudeRef | 0 | Short | GPS altitude reference: 0 > sea level |
| Exif.GPSInfo.GPSMapDatum | WGS-84 | String | GPS coordinate system |
| Exif.GPSInfo.GPSDateStamp | 2016:03:01 | Ascii | GPS date (UTC) |
| Exif.GPSInfo.GPSTimeStamp | 12/1 8/1 54785/1000 | List of Rational |
GPS time as hour, minute, second (UTC), with sub-second accuracy
|
| Exif.Image.SubjectDistance | 12.87 | Double | Distance from camera to subject [meters] (e.g. ultrasound-based measure) |
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