Quality assessment tables identification

Dimap 1.1.3 SPOTView Profile

<QUALITY_TABLES>

Dimap_Generic 1.0

Quality assessment tables identification

Description :

This record provides the quality tables used. Presently we do not know of any standard for quality assement, we recommend that each data producer use its own quality assesment technique and provide some structured information using the QUALITY_* set of keywords. The QUALITY_TABLE is used to identify the quality scheme used by the producer.

The number and name of parameters depends on the type of quality measures performed on the dataset. This could possibly be :

RMS geometric accuracy/precision measures
90% circular geometric errors
confusion matrix for a classified image

The quality/precision/accuracy issue is still open.

Example :
 
<Quality_Parameter>
    <QUALITY_PARAMETER_CODE>spot:COH_1</QUALITY_PARAMETER_DESC>
    <QUALITY_PARAMETER_DESC>Perpendicular base line of the ERS Tandem pair</QUALITY_PARAMETER_DESC>
    <QUALITY_PARAMETER_VALUE unit="M">-152.4</QUALITY_PARAMETER_VALUE>
</Quality_Parameter>

or

<Quality_Parameter>
    <QUALITY_PARAMETER_CODE>spot:MODEL_RMS_1</QUALITY_PARAMETER_DESC>
    <QUALITY_PARAMETER_DESC>Global root mean square error of physical model</QUALITY_PARAMETER_DESC>
    <QUALITY_PARAMETER_VALUE unit="M">8.3</QUALITY_PARAMETER_VALUE>
</Quality_Parameter>

or

<Quality_Parameter>
    <QUALITY_PARAMETER_CODE>spot:RADIOM_EYE_1</QUALITY_PARAMETER_DESC>
    <QUALITY_PARAMETER_DESC>Global radiometric quality, visual inspection</QUALITY_PARAMETER_DESC>
    <QUALITY_PARAMETER_VALUE>Excellent, slight haze at south-east of image</QUALITY_PARAMETER_VALUE>
</Quality_Parameter>

Datatype : t_QUALITY_TABLES (based on String_Version)

IGNE
IGN Espace

String_Version (based on xsd:string)

Attribute : version of type xsd:string

Possible parent(s)

Quality_Assessment