Accuracy potential of large-format still-video cameras

Hans-Gerd Maas; Markus Niederoest

doi:10.1117/12.279775

7 July 1997 Accuracy potential of large-format still-video cameras

Hans-Gerd Maas, Markus Niederoest

Proceedings Volume 3174, Videometrics V; (1997) https://doi.org/10.1117/12.279775
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

High resolution digital stillvideo cameras have found wide interest in digital close range photogrammetry in the last five years. They can be considered fully autonomous digital image acquisition systems without the requirement of permanent connection to an external power supply and a host computer for camera control and data storage, thus allowing for convenient data acquisition in many applications of digital photogrammetry. The accuracy potential of stillvideo cameras has been extensively discussed. While large format CCD sensors themselves can be considered very accurate measurement devices, lenses, camera bodies and sensor mounts of stillvideo cameras are not compression techniques in image storage, which may also affect the accuracy potential. This presentation shows recent experiences from accuracy tests with a number of large format stillvideo cameras, including a modified Kodak DCS200, a Kodak DCS460, a Nikon E2 and a Polaroid PDC-2000. The tests of the cameras include absolute and relative measurements and were performed using strong photogrammetric networks and good external reference. The results of the tests indicate that very high accuracies can be achieved with large blocks of stillvideo imagery especially in deformation measurements. In absolute measurements, however, the accuracy potential of the large format CCD sensors is partly ruined by a lack of stability of the cameras.

Citation Download Citation

Hans-Gerd Maas and Markus Niederoest "Accuracy potential of large-format still-video cameras", Proc. SPIE 3174, Videometrics V, (7 July 1997); https://doi.org/10.1117/12.279775

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