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Research OnFog Image Restoration Algorithm Based On Scale Space Transform

Abstract

近年来,随着雾霾天气不断增多,受到雾霾天气的影响,户外系统所采集到的图像质量严重下降,导致成像图像不清晰,对比度降低,颜色失真,图像丢失大量细节信息,这样的降质图像给后续的处理带来不便,因此,研究降质图像的复原算法,提高图像质量,具有重要的现实意义。 本文提出一种尺度空间理论,假设图像具有多种尺度表达方式,只要找到合适的模式识别方式,就可以提取出图像的细节跟平滑轮廓信息。本文算法采用光学成像原理来建立数学模型。通过对模型变量进行分析,发现模型中的传输图像函数t,大气光A值的精确估计对图像的复原效果产生较大的影响,因此为了精细化传输图估计,本文基于暗通道理论,采用不同的块操作提取图像的不同暗通...In recent years, the fog and haze weather has been increasinghappened. This phenomenon seriously affects the quality of imagesthat collected by the outdoor system.It causes the image appearsunclear, leads low contrast and color distortion .It makes the image losingrich details. Such a degraded image is not convenient for post-processing. Therefore, it has important practical significance to study ...学位:工程硕士院系专业:信息科学与技术学院_工程硕士(电子与通信工程)学号:X200822201

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