Trimble inpho mathc t how to#
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Trimble inpho mathc t software#

DAT/EM highly recommends you compare it to the camera calibration report and make sure the correct value was used for the AT. Sometimes this means opening the third-party project in a text editor and trying to find the principal point entry.

Trimble inpho mathc t software#

You should try to match the interior orientation of the third-party AT software as best you can. The principal point is a key component of the interior orientation. Should I try to match the principal point they used?ДЄ: Absolutely yes. Q: My camera was first processed by a third-party AT application. If you donвЂ™t know which to use, then use the PPA. The PPA is generally accepted as the better method. Q: Would I ever enter the PPS when the PPA is (0,0) or when both the PPA and PPS are not (0,0)?ДЄ: Maybe, but you would need a good reason to think that the PPS is better than the PPA on this calibration report. Summit Camera Principal Point for the FC as fiducial coordinate origin Some historic camera reports may not have a PPA, in which case you can enter the PPS.Д¬amera Calibration Report with the FC as origin The PPA is the most common choice when it is given. You may choose whether to enter the PPA or PPS in the Summit cameraвЂ™s Principal Point fields.

If neither the PPA nor the PPS is (0,0), then the fiducial coordinates are not already shifted.

Summit Camera Principal Point for PPA=(0,0) Having (0,0) for the PPA or PPS doesnвЂ™t mean there is no offset between the FC and the PPA it simply means that the offset from the FC has already been applied to the fiducial coordinates.Д¬amera Calibration Report with the PPA as origin It is common to see the PPA=(0,0), but some old reports may list the PPS=(0,0), especially if there is no PPA on the report.

If either the PPS or PPA is (0,0) on the report, then the fiducial coordinates are already shifted to that point as origin, and you should enter (0,0) in the Summit cameraвЂ™s Principal Point fields.

In this case, the PPS and PPA will not be (0,0), but will have some shift in x, y, or both. If the fiducials are listed with the FC as origin, then they need to be shifted to the PPA (or PPS, itвЂ™s your choice). If the fiducial coordinates are already shifted to a better origin than the FC, you have to be careful not to shift them again by entering the wrong principal point in the camera file. When either the PPS or PPA displays as (0,0), it means the fiducial coordinates in the calibration report are already shifted to that point. It is important to enter the principal point correctly in the Summit camera dialog before any measurement begins, because it affects the interior orientation. You must read the camera calibration report carefully to see whether the FC, PPA, or PPS is identified as the origin for the fiducial coordinates.

The answer is not always the same, because camera calibration reports from different calibration organizations and from different decades are not always the same. Which one do you enter in SummitвЂ™s single Principal Point field in the Summit camera? The camera calibration report lists a fiducial center (FC), Principal Point of Symmetry (PPS), and Principal Point of Autocollimation (PPA). YouвЂ™re making a Summit camera file for an aerial film camera.

Trimble inpho mathc t windows 10#

Have Windows 10 already? Here are some more handy tips on the web: Yes, you can use Windows 10 with a new enough video card.

*New!* you have Inpho 1, 7.1.1, or 7.1.2 exporting to Summit 7.2 or higher and the project is in U.S.

you donвЂ™t know which version of Inpho Match-AT or UAS Master was used.

you use an older version of Inpho software with a newer version of Summit.

your Summit project doesnвЂ™t match your good Match-AT or UAS Master results.

We updated the document that discusses what to do if your Summit project doesnвЂ™t match the good results you saw in your Trimble Inpho aerotriangulation (AT).

Trimble inpho mathc t how to#

How to enter the principal point for an aerial film cameraДЎ.