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IRFPA积分时间自适应预测方法研究

, PP. 536-542

Keywords: 图像与信息处理,自适应预测,辐射标定,人眼视觉特性

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Abstract:

积分时间是决定IRFPA(红外焦平面阵列)成像质量的关键因素。针对红外测量系统难以实时自动确定积分时间的问题,提出基于人眼视觉特性和事前辐射标定的积分时间自适应预测方法。假定目标和背景在连续两帧内不突变,结合事前辐射标定结果、目标和背景信息反演计算各积分时间的目标和背景灰度,以人眼视觉特性和跟踪判据为调节依据,自动预测合适的积分时间。实验结果表明,该方法能自适应快速预测满足要求的积分时间,使获取的图像处于线性区中段,保证了成像质量,有利于目标的初始捕获和平稳跟踪。

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