SIFT（Scale Invariant Feature Transform） local feature is chosen because of its scale invariance and the property of accurate key-point localization.The Euclidean distance between different SIFT feature vectors is defined as the measure of similarity to get the pre-matched key-point pairs.The affine transform model is used to realize the registration.In order to get the accurate affine transform parameter,the principal of affine transform error is used to get rid of mismatched key-point pairs from the pre-matched pairs.

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Aiming at the complexity of data used by tradition method, the new method firstly extracted key points-unstructured data of position and scale stabilization from circum-rectangle area of human body,computed power spectral density of key point; Then obtained distribution of power spectral density of key point; finally judged human movement state form its distribution characteristic.

針對傳統(tǒng)人體狀態(tài)檢測方法利用數(shù)據(jù)信息的復(fù)雜性，對圖像中人體外接矩形區(qū)域提取位置和尺度穩(wěn)定的非結(jié)構(gòu)化數(shù)據(jù)信息——關(guān)鍵點A级毛片免费视频观看，計算關(guān)鍵點的功率譜密度国产韩国精品福利小视频，在序列視頻圖像中可獲得關(guān)鍵點功率譜密度的分布，利用其分布特點判斷人體運動狀態(tài)WWW.禁。

key word method：關(guān)鍵詞法

key?point investigation 重點調(diào)查 | key?word method 關(guān)鍵詞法 | kick out 解雇

overlooks one key point which is ：插入語

6. 想要做:yearn to do sth | 7. 插入語This belief, though logical, overlooks one key point which is , of course, education. | 8. 原因分析:In the face of the ... it's likely that...

key point of interest：名勝

key name 鍵名 | key point of interest 名勝 | key ring 鑰匙圈