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remotesensing_chick Tourist Reged: 09/19/05 Posts: 3 fiducial marks       09/22/05 01:07 PM Edit   Reply   Quote   Quick Reply   Yes, this little marks are tabs - on the actual frame of the sensor, rather than on the film. They are called "fiducial marks" in remote sensing geek talk. We use them to put together this "Frankstein" of images, or this giant puzzle that is GE. The actual position of the fiducial marks is very well known (measured during camera calibration procedures), as well as very stable. Therefore they are used to rectify, orient and register the image the image by matching the position of these fiducial marks on the image to their actual coordinates, combined with the flying altitude of the aircraft that carries the camera and with known locations on the ground (ground control points). Post Extras

Entire topic Subject Posted by Posted on Somethign you wont see everyday.... Lieutenant 07/30/05 05:13 AM fiducial marks remotesensing_chick   09/22/05 01:07 PM Re: fiducial marks Subi83   02/23/06 04:13 PM Re: Somethign you wont see everyday.... Reecey   07/31/05 07:40 AM Re: Somethign you wont see everyday.... mudfinger   07/30/05 04:19 PM Re: Somethign you wont see everyday.... Patiperro   07/30/05 10:16 PM Re: Somethign you wont see everyday.... horizon   07/30/05 07:12 AM Re: Somethign you wont see everyday.... HairyAl   07/30/05 04:19 PM Re: Somethign you wont see everyday.... Calico_Jack   07/31/05 02:07 AM Re: Somethign you wont see everyday.... Lieutenant   07/31/05 07:31 AM Re: Somethign you wont see everyday.... Calico_Jack   07/31/05 08:54 AM Re: Somethign you wont see everyday.... STiMULi   07/30/05 11:08 PM

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