SMALL & MEDIUM FORMAT DIGITAL CAMERA SPECIFICATIONS ...

A calibration procedure that has been carried out according to the
specifications in Appendix C (section 15.2) should have no
correlation among the estimated parameters. If correlation exists,
the calibration procedure must be repeated while observing the
guidelines.
3. Variance-covariance matrices for the estimated parameters:
The estimated IOP from the calibration procedure will be associated
with a variance-covariance matrix. The square roots of the variances
represent the standard deviations, which can be used as a measure of
the quality of the estimated parameters. For a meaningful estimate of
the IOP, the standard deviations must be:
• Tier I < 1.0 Pixels (for the xp, yp, and c components of the
IOP)
• Tier II < 1.5 Pixels (for the xp, yp, and c components of the
IOP)
• Tier III N/A
In summary, a calibration report should be provided showing the
estimated parameters, estimated variance component of unit weight,
standard deviations of the estimated IOP, and the correlation image.
The quality of these deliverables should adhere to the provided
guidelines in this section. See an example of a calibration report in
Appendix D. The calibration report must be submitted in this format.
5.4 Stability Analysis
Estimated IOP from temporal calibration sessions must go through a
stability analysis procedure to evaluate the degree of similarity
between the reconstructed bundles from these sets (refer to Appendices C
and D for details).
The provider must furnish the estimated stability measure (RMSEoffset),
which must be within the acceptable limit.
• Tier I RMSEoffset < 1.0 Pixels
• Tier II RMSEoffset < 1.5 Pixels
• Tier III RMSEoffset : N/A
Note: The above RMSEoffset values are reported by the stability analysis
component of the calibration suite provided by the BC Base Mapping and
Geomatic Services.
5.5 Deliverable
The following list of items must be provided to summarize the quality of
the calibration and stability analysis procedures of the utilized
Printed copy of this document is uncontrolled. For latest version see
Specifications for Small and Medium Format Digital Cameras posted at _____
Owner: BMGS Title: Specifications for Small and Medium Format
Digital Cameras
Version No: DRAFT V0.0.11 Issue Date: _______________
Doc No.: __________________ ARCS/ORCS: ________________
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