ar_hmdb.cpp 4.39 KB
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/*M///////////////////////////////////////////////////////////////////////////////////////
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//
//                           License Agreement
//                For Open Source Computer Vision Library
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#include "opencv2/datasets/ar_hmdb.hpp"
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#include "opencv2/datasets/util.hpp"
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#include <map>

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namespace cv
{
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namespace datasets
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{

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using namespace std;

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class AR_hmdbImp : public AR_hmdb
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{
public:
    AR_hmdbImp() {}
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    //AR_hmdbImp(const string &path, int number = 0);
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    virtual ~AR_hmdbImp() {}

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    virtual void load(const string &path) CV_OVERRIDE;
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private:
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    void loadDatasetSplit(const string &path, int number = 0);
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    void loadDataset(const string &path);

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    map<string, int> actionsId;
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};

/*AR_hmdbImp::AR_hmdbImp(const string &path, int number)
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{
    loadDataset(path, number);
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}*/
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void AR_hmdbImp::load(const string &path)
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{
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    loadDataset(path);
}

void AR_hmdbImp::loadDataset(const string &path)
{
    for (int i=0; i<3; ++i)
    {
        loadDatasetSplit(path, i);
    }
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}

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void AR_hmdbImp::loadDatasetSplit(const string &path, int number)
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{
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    // valid number [0,1,2]
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    if (number<0 || number>2)
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    {
        return;
    }

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    train.push_back(vector< Ptr<Object> >());
    test.push_back(vector< Ptr<Object> >());
    validation.push_back(vector< Ptr<Object> >());

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    string pathDataset(path + "hmdb51_org/");
    string pathSplit(path + "testTrainMulti_7030_splits/");

    vector<string> fileNames;
    getDirList(pathDataset, fileNames);
    for (vector<string>::iterator it=fileNames.begin(); it!=fileNames.end(); ++it)
    {
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        string &action = *it;
        map<string, int>::iterator itId = actionsId.find(action);
        int id;
        if (itId == actionsId.end())
        {
            actionsId.insert(make_pair(action, actionsId.size()));
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            id = (int)actionsId.size();
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        } else
        {
            id = (*itId).second;
        }
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        char tmp[2];
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        sprintf(tmp, "%u", number+1);
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        string fileName(pathSplit + action + "_test_split" + tmp + ".txt");

        ifstream infile(fileName.c_str());
        string video, label;
        while (infile >> video >> label)
        {
            Ptr<AR_hmdbObj> curr(new AR_hmdbObj);
            curr->id = id;
            curr->name = action;
            curr->videoName = video;

            if ("1"==label)
            {
                train.back().push_back(curr);
            } else
            if ("2"==label)
            {
                test.back().push_back(curr);
            }
        }
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    }
}
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Ptr<AR_hmdb> AR_hmdb::create()
{
    return Ptr<AR_hmdbImp>(new AR_hmdbImp);
}

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}
}