Quality Assurance

Wyvern has built an advanced proprietary image quality assurance (QA) system to confirm that imagery data products align with the documented standard product specifications and the offering's cloud cover policy. If the quality assurance system determines that a new tasking imagery data product does not meet the standard performance specifications or cloud cover policy and there is available imaging capacity the Wyvern constellation tasking system will automatically re-schedule a new imaging collection attempt within the tasking order's time-of-interest (TOI) acquisition date range. This automatic QA standard performance specifications misalignment retasking applies to both Standard Tasking and Premium Tasking offerings where available imaging capacity for re-schedule is offering- dependent. New tasking attempts will continue until an imagery data product is acquired that aligns with standard product specifications or the constellation tasking order's acquisition date range expires. Furthermore, for Premium Tasking orders with automatic cloudy collection retasking if an imagery data product does not align with the cloud cover policy the Wyvern constellation tasking system will automatically re-schedule a new tasking request to attempt another imaging collection within the order's acquisition date range based on available Premium Tasking capacity and upcoming weather forecast (automatic cloudy collection retasking is not available for Standard Tasking which is a single shot offering).

Wyvern's quality assurance (QA) system includes an advanced proprietary cloud detection algorithm based on a machine learning (ML) model that identifies pixels within the imagery data product where the ground is significantly obscured by clouds. Wyvern defines a cloudy pixel as one where either a cumuliform cloud completely obscures the ground surface or part of a stratiform or cirrus cloud obscures at least a minimum of > 25% of the total reflected sunlight in that pixel. If a pixel has light haze or other atmospheric aerosols but at least ≥ 75% of the data signal is sunlight reflected from the surface of the Earth then that pixel is considered suitable for analysis and is not considered cloudy. Wyvern delivers a usable data mask raster file with every imagery data product including a cloud mask band that reflects the binary result of the cloud detection algorithm assessment. Once cloudy pixels have been identified the total percentage of cloudy pixels within the constellation tasking order's area-of-interest (AOI) is measured in relation to the offering's cloud cover policy to determine if the imagery data product has passed QA checkout to be delivered with subsequent billing invoice based on the area of imagery data pixels within the AOI.