added first version of hpe_humaneva dataset loader

modules/datasets/include/opencv2/datasets/hpe_humaneva.hpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2014, Itseez Inc, all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Itseez Inc or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef OPENCV_DATASETS_HPE_HUMANEVA_HPP
+#define OPENCV_DATASETS_HPE_HUMANEVA_HPP
+
+#include <string>
+#include <vector>
+
+#include "opencv2/datasets/dataset.hpp"
+
+#include <opencv2/core.hpp>
+
+namespace cv
+{
+namespace datasets
+{
+
+struct HPE_humanevaObj : public Object
+{
+    char person; // 1..4
+    std::string action;
+    int type1;
+    std::string type2;
+    Matx13d ofs;
+    std::string fileName;
+    std::vector<std::string> imageNames; // for HumanEva_II
+};
+
+enum datasetType
+{
+    humaneva_1 = 1,
+    humaneva_2
+};
+
+class CV_EXPORTS HPE_humaneva : public Dataset
+{
+public:
+    virtual void load(const std::string &path) = 0;
+
+    static Ptr<HPE_humaneva> create(int num=humaneva_1);
+};
+
+}
+}
+
+#endif

modules/datasets/samples/hpe_humaneva.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2014, Itseez Inc, all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Itseez Inc or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "opencv2/datasets/hpe_humaneva.hpp"
+
+#include <opencv2/core.hpp>
+
+#include <cstdio>
+#include <cstdlib> // atoi
+
+#include <string>
+#include <vector>
+
+using namespace std;
+using namespace cv;
+using namespace cv::datasets;
+
+int main(int argc, char *argv[])
+{
+    const char *keys =
+            "{ help h usage ? |    | show this message }"
+            "{ path p         |true| path to dataset folder }";
+    CommandLineParser parser(argc, argv, keys);
+    string path(parser.get<string>("path"));
+    if (parser.has("help") || path=="true")
+    {
+        parser.printMessage();
+        return -1;
+    }
+
+    for (unsigned int i=1; i<=2; ++i)
+    {
+        printf("\tHumanEva %u\n", i);
+        char number[2];
+        sprintf(number, "%u", i);
+        string pathCurr(path+"HumanEva_"+number+"/");
+
+        Ptr<HPE_humaneva> dataset = HPE_humaneva::create(i);
+        dataset->load(pathCurr);
+
+        // ***************
+        // dataset contains pair of rgb\dep images
+        // For example, let output train size and last element.
+        HPE_humanevaObj *example = static_cast<HPE_humanevaObj *>(dataset->getTrain().back().get());
+        printf("train size: %u\n", (unsigned int)dataset->getTrain().size());
+        printf("last train video:\n");
+        printf("person: %u\n", example->person);
+        printf("action: %s\n", example->action.c_str());
+        printf("type1: %u\n", example->type1);
+        printf("type2: %s\n", example->type2.c_str());
+        printf("filename: %s\n", example->fileName.c_str());
+        printf("num images: %u\n", (int)example->imageNames.size());
+        printf("ofs:");
+        for (int j=0; j<3; ++j)
+        {
+            printf(" %f", example->ofs(0, j));
+        }
+        printf("\n");
+    }
+
+    return 0;
+}

modules/datasets/src/hpe_humaneva.cpp

+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2014, Itseez Inc, all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Itseez Inc or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "opencv2/datasets/hpe_humaneva.hpp"
+#include "opencv2/datasets/util.hpp"
+#include "precomp.hpp"
+
+#include <cstring>
+
+namespace cv
+{
+namespace datasets
+{
+
+using namespace std;
+
+class HPE_humanevaImp : public HPE_humaneva
+{
+public:
+    HPE_humanevaImp() {}
+    //HPE_humanevaImp(const string &path);
+    virtual ~HPE_humanevaImp() {}
+
+    virtual void load(const string &path);
+
+private:
+    void loadDataset(const string &path);
+};
+
+/*HPE_humanevaImp::HPE_humanevaImp(const string &path)
+{
+    loadDataset(path);
+}*/
+
+void HPE_humanevaImp::load(const string &path)
+{
+    loadDataset(path);
+}
+
+void HPE_humanevaImp::loadDataset(const string &path)
+{
+    train.push_back(vector< Ptr<Object> >());
+    test.push_back(vector< Ptr<Object> >());
+    validation.push_back(vector< Ptr<Object> >());
+
+    for (unsigned int i=1; i<=4; ++i)
+    {
+        char number[2];
+        sprintf(number, "%u", i);
+        string pathDatasetI(path + "S" + number + "/Image_Data/");
+        string pathDatasetS(path + "S" + number + "/Sync_Data/");
+
+        vector<string> fileNames;
+        getDirList(pathDatasetI, fileNames);
+        for (vector<string>::iterator it=fileNames.begin(); it!=fileNames.end(); ++it)
+        {
+            string &file = *it;
+
+            vector<string> elems;
+            split(file, elems, '_');
+            if (elems.size() != 3)
+            {
+                continue;
+            }
+
+            Ptr<HPE_humanevaObj> curr(new HPE_humanevaObj);
+            curr->person = (char)i;
+            curr->action = elems[0];
+            curr->type1 = atoi(elems[1].c_str());
+            curr->fileName = pathDatasetI+file;
+
+            unsigned int type2End = 2;
+            if (elems[2][type2End+1] != ')')
+            {
+                type2End = 3;
+            }
+            curr->type2 = elems[2].substr(1, type2End);
+
+            file = file.substr(0, file.length()-3) + "ofs";
+            ifstream infileOFS((pathDatasetS + file).c_str());
+            string line;
+            unsigned int j = 0;
+            while (getline(infileOFS, line))
+            {
+                curr->ofs(0, j) = atof(line.c_str());
+                ++j;
+            }
+
+            train.back().push_back(curr);
+        }
+    }
+}
+
+//
+// HumanEva II
+//
+class HPE_humanevaImpII : public HPE_humaneva
+{
+public:
+    HPE_humanevaImpII() {}
+    //HPE_humanevaImpII(const string &path);
+    virtual ~HPE_humanevaImpII() {}
+
+    virtual void load(const string &path);
+
+private:
+    void loadDataset(const string &path);
+};
+
+/*HPE_humanevaImpII::HPE_humanevaImpII(const string &path)
+{
+    loadDataset(path);
+}*/
+
+void HPE_humanevaImpII::load(const string &path)
+{
+    loadDataset(path);
+}
+
+void HPE_humanevaImpII::loadDataset(const string &path)
+{
+    train.push_back(vector< Ptr<Object> >());
+    test.push_back(vector< Ptr<Object> >());
+    validation.push_back(vector< Ptr<Object> >());
+
+    for (unsigned int i=1; i<=2; ++i)
+    {
+        char number[2];
+        sprintf(number, "%u", i*2); // 2 & 4
+        string pathDatasetI(path + "S" + number + "/Image_Data/");
+        string pathDatasetS(path + "S" + number + "/Sync_Data/");
+
+        vector<string> fileNames;
+        getDirList(pathDatasetI, fileNames);
+        for (vector<string>::iterator it=fileNames.begin(); it!=fileNames.end(); ++it)
+        {
+            string &file = *it;
+
+            vector<string> elems;
+            split(file, elems, '_');
+            if (elems.size() != 3)
+            {
+                continue;
+            }
+
+            Ptr<HPE_humanevaObj> curr(new HPE_humanevaObj);
+            curr->person = (char)i;
+            curr->action = elems[0];
+            curr->type1 = atoi(elems[1].c_str());
+            curr->fileName = pathDatasetI+file;
+
+            unsigned int type2End = 2;
+            if (elems[2][type2End+1] != ')')
+            {
+                type2End = 3;
+            }
+            curr->type2 = elems[2].substr(1, type2End);
+
+            vector<string> imageNames;
+            getDirList(curr->fileName, imageNames);
+            for (vector<string>::iterator itI=imageNames.begin(); itI!=imageNames.end(); ++itI)
+            {
+                string &image = *itI;
+                if (image.substr(image.length()-3) == "png")
+                {
+                    curr->imageNames.push_back(image);
+                }
+            }
+
+            file = file.substr(0, file.length()) + ".ofs";
+            ifstream infileOFS((pathDatasetS + file).c_str());
+            string line;
+            unsigned int j = 0;
+            while (getline(infileOFS, line))
+            {
+                curr->ofs(0, j) = atof(line.c_str());
+                ++j;
+            }
+
+            train.back().push_back(curr);
+        }
+    }
+}
+
+Ptr<HPE_humaneva> HPE_humaneva::create(int num)
+{
+    if (humaneva_2==num)
+    {
+        return Ptr<HPE_humanevaImpII>(new HPE_humanevaImpII);
+    }
+    return Ptr<HPE_humanevaImp>(new HPE_humanevaImp);
+}
+
+}
+}