求翻译：运动检测是正确分割出运动目标区域或轮廓，精确分离出来视频中变化的区域与背景图像，它的效果影响后续的异常行为识别效果。特征提取是指提取分割出的运动目标中出有用的信息并生成合适的识别标准，将行为以特征数据的形式表达出来。异常行为识别是指对人的运动模式进行分析和识别，从而发现异常行为并以自然语言加以描述。是什么意思？

Motion detection is correct to split the region or contour of the moving target, precise separation of the regional and background image of the video changes, its effects affect the follow-up of abnormal behavior recognition. The feature extraction is to extract the moving target segment useful info

Motion detection is the right split the aims of the campaign or the contour, the exact area separated from the changes in the video area with the background image, and the results of the follow-up on abnormal behavior recognition results. Feature extraction is a carve out from the aims of the campai

The movement examination is divides the movement target sector or the outline correctly, precisely separates the region and the background image which in the video frequency changes, its effect influence following unusual behavior recognition effect.The characteristic extraction is refers to in the

Motion detection is properly divided out of the target area, or outline, isolate the exact changes in the video area and the background image, follow-up of the effect of abnormal behavior recognition. Feature extraction is the extraction and segmentation of moving object in the identification of use

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