彩色视觉门限及LOFAR显示的数学模型

彩色B式声呐显示器的检测性能,由于与人的视觉生理和视觉心理有关,因而不易建立数学理论来定量地评价它的性能.本文注意到冷色和暖色是色差反差很大的二类颜色,正常人很容易就能区分它们.因此,基于多种冷色和暖色的

Coloured visual threshold and mathematical model of LOFAR display

Because the detection performance of coloured brightness mode display is related to visual psychological and physiological factors,it.is difficult to make a mathematical model and evaluate its performance quantitatively.The conception of'visual threshold'is proposed in the paper,based on it as well as the statistical model of displayed data,detection performance of display system can be analyzed theoretically Computer simulation result shows a good agreement with theoretical one.The quanitative model is helpful to design LOFAR display system of high quality.
LOFAR display are required to have these qualities such as wide dyntaic range,low detection threshold,well performance in unstable background noise without axtilicial adustment.'Adaptive coloured scale coversion algorithem'and'th (x) function scale conversion'algorithm'are proposed in the paper to acquire those qualities metioned above.They have been proved to be efficient in our experiment.