MIL-PRF-89041 Controlled Image Base \(Cib\)This specification provides requirements for the preparation and use of the Raster Product Format \(RPF\) Controlled Image Base \(CIB\) data. CIB is a dataset of orthophotos, made from rectified grayscale aerial images. CIB supports various weapons, C3I theater battle management, mission planning, digital moving map, terrain analysis, simulation, and intelligence systems. CIB data are produced from digital source images that can be converted to meet the requirements of this CIB specification at one of the registered resolutions defined in MIL-STD-2411-1. CIB data are derived directly from digital images and are compressed and reformatted to conform to the RPF Standard. CIB files are physically formatted within a National Imagery Transmission Format \(NITF\) message.

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MIL-PRF-89041A

2.4 Order of precedence. In the event of a conflict

between the text of this document and the references cited herein

(except for related associated detail specifications,

specification sheets, or MS standards), the text of this document

takes precedence. Nothing in this document, however, supersedes

applicable laws and regulations unless a specific exemption has

been obtained.

REQUIREMENTS

3.1 First Article. When specified (see 6.2), a sample

shall be subjected to first article inspection (see 4.2).

3.2

Accuracy and resolution.

3.2.1

Horizontal accuracy.

a. The horizontal accuracy of CIB data depends on the

accuracy of the ephemeris data of the satellite capturing the

image source from which the CIB was derived and the accuracy of

the information used to orthorectify the image. The horizontal

accuracy attribute within the CIB frame file defines the accuracy

for each frame file or areal extent.

b. Previous experience has shown that accuracies of 25

meters or better are achievable for imagery of 10m or smaller

Ground Sample Distance (GSD). At least nine out of any ten

randomly chosen points mensurated and computed from CIB will

fulfill the horizontal accuracy listed in the attribute section

for the particular image source utilized in production.

Accuracies shall be determined relative to a 90% Circular Map

Accuracy Standard (CMAS) within WGS 84 (NIMA TR 8350.2). The

accuracy error attributable to compressing the CIB data

contributes insignificantly to the total accuracy of the product.

3.2.2 Vertical accuracy. Vertical accuracy is not

applicable to this product specification.

3.2.3

Resolution. The resolution of the CIB data

depends on the resolution of the image source from which the CIB

is derived and any processing steps which affect the resolution

or GSD. MIL-STD-2411-1 lists the registered data series codes

for RPF and includes the resolution of all registered CIB

products. Note that in this specification, the terms "GSD" and

"resolution" are used interchangeably. Initial CIB products will

be produced at 5 meter 10 meter nominal resolutions and other

resolutions will be produced based on source and customer request

3.3

Datum

3.3.1 Horizontal datum. The horizontal datum for CIB shall

e WGS-84, as defined by DMA TM 8358.1.

3.3.2 Vertical datum.

The vertical datum is not applicable