CAJ | 학술논문

针对地下矿山井下光照不均匀,基于S3C6410现场信息记录仪在图像采集传输过程中混入大量的噪声,图像画面模糊不清晰,对比度较小。分析了该系统采集端的噪声来源,基于Donoho提出的小波阈值去噪理论,比较了几种典型的小波阈值去噪方法,获取峰值信噪比的去噪效果,提出了将自适应阈值去噪和直方图修正相结合的图像增强方法。该方法具有良好的去噪性能,并且在去除CCD摄像头读出噪声的同时,改善了图像的质量。
침대지하광산정하광조불균균,기우S3C6410현장신식기록의재도상채집전수과정중혼입대량적조성,도상화면모호불청석,대비도교소。분석료해계통채집단적조성래원,기우Donoho제출적소파역치거조이론,비교료궤충전형적소파역치거조방법,획취봉치신조비적거조효과,제출료장자괄응역치거조화직방도수정상결합적도상증강방법。해방법구유량호적거조성능,병차재거제CCD섭상두독출조성적동시,개선료도상적질량。
Aiming at underground mine light uneven,much noise was interfused in S3C6410 field information recorder during collection and transmission of image,the picture was fuzzy and contrast ratio was low.Noise source of this system collection port was analyzed,several classical wavelet threshold de-noising method were compared based on wavelet threshold de-noising theory proposed by Donoho,de-noising effect of peak signal noise ratio was obtained,image enhance method of adaptive wavelet threshold de-noising and histogram modification combination was proposed.The performance was good and the image quality was improved with noise removing from CCD camera.