微型机与应用
微型機與應用
미형궤여응용
Microcomputer & its Applications
2015年
17期
32-35
,共4页
目标提取%烟雾检测%离散小波变换%能量%相关性
目標提取%煙霧檢測%離散小波變換%能量%相關性
목표제취%연무검측%리산소파변환%능량%상관성
target extraction%smoke detection%discrete wavelet transform%energy%correlation
针对视频烟雾检测中当干扰物和烟雾极为相似时容易出现误判的问题，对基于帧间高频能量和相关性的烟雾检测进行了研究。首先通过混合高斯背景模型与三帧差法提取运动目标，再利用烟雾的颜色、扩散性、形状提取疑似目标区，对目标区域用离散小波变换获取高频能量，利用帧间高频能量和相关性对疑似区域进行烟雾判断，从而确定目标是否是烟雾并给出报警。通过 MATLAB和 VS2010进行仿真，结果表明，该算法可以有效提高烟雾识别检测的可靠性，减少误报。
針對視頻煙霧檢測中噹榦擾物和煙霧極為相似時容易齣現誤判的問題，對基于幀間高頻能量和相關性的煙霧檢測進行瞭研究。首先通過混閤高斯揹景模型與三幀差法提取運動目標，再利用煙霧的顏色、擴散性、形狀提取疑似目標區，對目標區域用離散小波變換穫取高頻能量，利用幀間高頻能量和相關性對疑似區域進行煙霧判斷，從而確定目標是否是煙霧併給齣報警。通過 MATLAB和 VS2010進行倣真，結果錶明，該算法可以有效提高煙霧識彆檢測的可靠性，減少誤報。
침대시빈연무검측중당간우물화연무겁위상사시용역출현오판적문제，대기우정간고빈능량화상관성적연무검측진행료연구。수선통과혼합고사배경모형여삼정차법제취운동목표，재이용연무적안색、확산성、형상제취의사목표구，대목표구역용리산소파변환획취고빈능량，이용정간고빈능량화상관성대의사구역진행연무판단，종이학정목표시부시연무병급출보경。통과 MATLAB화 VS2010진행방진，결과표명，해산법가이유효제고연무식별검측적가고성，감소오보。
For the accuracy of the smoke detection, it is prone to miscarriage when the distractors and smoke are very similar. The smoke detection algorithm based on the frame of high frequency energy and correlation is studied. First , the Gaussian mixture background model and three frame difference method is used to extract the moving object, then the color of the smoke, diffusivity and shape is used to extract the suspected target area. The target area is processed with discrete wavelet transform to obtain the high frequency energy. The high frequency energy and correlation between frames are used to judge suspected area , to determine if the target is smoke and give alarm information or not. It is simulated on VS2010 and MATLAB. Simulation results show that the algorithm can improve the reliability of the smoke detection, and reduce false alarm.
