Visualization Requirements for DVE Systems

摘要

One of the more challenging aspects of Degraded Visual Environment (DVE) solutions development, evaluation and qualification is the subjectivity of output imagery. Current civil and military DVE system specifications do not address visualization requirements; instead identifying what must be seen. Evaluation pilots, without visualization requirements, evaluate system imagery based on their own opinion of what is good enough and often compared to what they see with their natural vision. This leads to tremendous subjectivity that varies from pilot-to-pilot, day-to-day, and program-to-program. The lack of requirements leaves industry without a guiding direction for implementations, leading to increased risk and cost. This is not an oversight, as it is very difficult to identify specific qualitative/quantitative imagery performance objectives. Yet we, the DVE community, need to do better. This paper puts forth the case for establishing visualization requirements and makes a series of recommendations for moving DVE system evaluation from a subjective to a quantitative assessment.