【正文】 ace design virtual environments simulate，visual surveillanlce，intelligent enviroments aIlalysis,etc．With the development of economic society, the crowd in various kinds of public places flows more and more frequently. How to manage and control the crowd effectively es to be an important issue which we have to consider nowadays. Intelligentized crowd surveillance technology arises at the very moment. It mainly includes both density estimation and motion paper set about the crowd motion estimation. Intelligentized crowd motion estimation can be used for monitoring and managing the crowd, at the same time, it can also be used for market survrey in the mercial field，traffic safety and architectural design field,etc. it can help staff members in the above mentioned occasions improve working efficiency and improve utilization ratio of building facilities directly or indirectly,so there is farreaching meaning and wide prospect in crowd’s density and motion estimation research.According to OpenCV, this paper use BMA(Block Matching Algorithm) for crowd motion estimation，and before the function running ,it has a specific analysis about OpenCV and the important case of BMA..[Key Words] crowd surveillance；crowd motion estimation；Block Matching Algorithm；OpenCV四川大學(xué)本科畢業(yè)論文 基于塊匹配的人群運(yùn)動(dòng)估計(jì)目 錄1 緒論 .....................................................1 研究背景 .....................................................1 智能監(jiān)控 ....................................................................................................................1 人群監(jiān)控的提出 ........................................................................................................1 運(yùn)動(dòng)估計(jì) ....................................................................................................................2 塊匹配算法 ................................................................................................................2 OpenCV ......................................................................................................................2 論文工作構(gòu)思 ............................................................................................................3 國內(nèi)外研究與技術(shù)現(xiàn)狀 .........................................3 智能人群監(jiān)控的研究現(xiàn)狀 ........................................................................................3 運(yùn)動(dòng)估計(jì)方法的研究現(xiàn)狀 ........................................................................................4 塊匹配現(xiàn)狀 ................................................................................................................4 論文主要工作 ................................................5 論文組織與結(jié)構(gòu) ..............................................52 塊匹配算法介紹及分析 .....................................6 運(yùn)動(dòng)估計(jì) .....................................................6 塊匹配基本思想 ...............................................6 初始搜索點(diǎn)的選擇 ......................................................................................................7 塊匹配準(zhǔn)則 ..................................................................................................................8 搜索策略 ......................................................................................................................8 典型的塊匹配算法 .............................................9 各模塊擬采用的算法 ..........................................153 人群運(yùn)動(dòng)估計(jì)的塊匹配算法實(shí)現(xiàn) ............................16 實(shí)現(xiàn)工具 OPENCV............................................16 ....................................................17 CvPoint,CvSize...........................................................................................................17 CvMat .........................................................................................................................17 IplImage......................................................................................................................19 其他函數(shù) ....................................................................................................................21 ........................................................24 cvCvtColor..................................................................................................................24 cvSmooth ....................................................................................................................26 cvCalcOpticalFlowBM...............................................................................................27 ....................................................28四川大學(xué)本科畢業(yè)論文 基于塊匹配的人群運(yùn)動(dòng)估計(jì)2 CvCapture...................................................................................................................28 窗口函數(shù) ....................................................................................................................28 cvWaitKey ..................................................................................................................31 算法實(shí)現(xiàn) ...................................................31 圖像處理（視頻處理） ................................................................................................32 塊匹配 ........................................................................................................................37 過濾非運(yùn)動(dòng)的物體 ....................................................................................................39 連線 ............................................................................................................................40 程序算法流程圖 .............................................41 程序?qū)崿F(xiàn)截圖 ...............................................424 軟件的測試 ..............................................45 測試環(huán)境 ...................................................45 硬件環(huán)境 ....................................................................................................................45 軟件環(huán)境 .......................................................................