00001 /*!@file Channels/TemplateMatchChannel.H */ 00002 00003 // //////////////////////////////////////////////////////////////////// // 00004 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2000-2005 // 00005 // by the University of Southern California (USC) and the iLab at USC. // 00006 // See http://iLab.usc.edu for information about this project. // 00007 // //////////////////////////////////////////////////////////////////// // 00008 // Major portions of the iLab Neuromorphic Vision Toolkit are protected // 00009 // under the U.S. patent ``Computation of Intrinsic Perceptual Saliency // 00010 // in Visual Environments, and Applications'' by Christof Koch and // 00011 // Laurent Itti, California Institute of Technology, 2001 (patent // 00012 // pending; application number 09/912,225 filed July 23, 2001; see // 00013 // http://pair.uspto.gov/cgi-bin/final/home.pl for current status). // 00014 // //////////////////////////////////////////////////////////////////// // 00015 // This file is part of the iLab Neuromorphic Vision C++ Toolkit. // 00016 // // 00017 // The iLab Neuromorphic Vision C++ Toolkit is free software; you can // 00018 // redistribute it and/or modify it under the terms of the GNU General // 00019 // Public License as published by the Free Software Foundation; either // 00020 // version 2 of the License, or (at your option) any later version. // 00021 // // 00022 // The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope // 00023 // that it will be useful, but WITHOUT ANY WARRANTY; without even the // 00024 // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR // 00025 // PURPOSE. See the GNU General Public License for more details. // 00026 // // 00027 // You should have received a copy of the GNU General Public License // 00028 // along with the iLab Neuromorphic Vision C++ Toolkit; if not, write // 00029 // to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, // 00030 // Boston, MA 02111-1307 USA. // 00031 // //////////////////////////////////////////////////////////////////// // 00032 // 00033 // Primary maintainer for this file: 00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Channels/TemplateMatchChannel.H $ 00035 // $Id: TemplateMatchChannel.H 9412 2008-03-10 23:10:15Z farhan $ 00036 // 00037 00038 #ifndef TEMPLATEMATCHCHANNEL_H_DEFINED 00039 #define TEMPLATEMATCHCHANNEL_H_DEFINED 00040 00041 #include "Channels/SingleChannel.H" 00042 00043 // ###################################################################### 00044 //! Convolves each level of its pyramid with a feature template. 00045 /*! This type of channel is useful for searching for a specific feature 00046 shape at multiple scales. For example, it is used by VisualCortex to 00047 search for possible pedestrians in an input image. */ 00048 class TemplateMatchChannel : public SingleChannel 00049 { 00050 public: 00051 //! Construct with the standard params, plus a filter specification. 00052 /*! The filter is specified by a C array, which will be interpreted to 00053 have dimensions \a filt_x and \a filt_y. A private copy of the filter 00054 will be made, so the \a filt pointer does not have to be 00055 persistent. */ 00056 TemplateMatchChannel(OptionManager& mgr, const Image<float>& filt); 00057 00058 //! Virtual destructor. 00059 virtual ~TemplateMatchChannel(); 00060 00061 //! Look for the most likely template match in a given rectangular region. 00062 /*! The position of the match in 0-level coordinates is returned in 00063 \a matchpos, the pyramid level at which the match was found is 00064 returned in \a match_lev, and a score rating the goodness of the 00065 match is returned in \a score. */ 00066 void findBestMatch(const Rectangle& r, Point2D<int>& matchpos, 00067 int& match_lev, float& score); 00068 00069 //! Draws a box in \a traj around the last best template match found 00070 virtual void drawResults(Image< PixRGB<byte> >& traj, 00071 const Rectangle& foa); 00072 00073 protected: 00074 virtual void start1(); 00075 00076 Point2D<int> itsBestMatchPos; 00077 int itsBestMatchLev; 00078 float itsBestMatchScore; 00079 Dims itsFiltDims; // only used by drawResults() 00080 }; 00081 00082 // ###################################################################### 00083 /* So things look consistent in everyone's emacs... */ 00084 /* Local Variables: */ 00085 /* indent-tabs-mode: nil */ 00086 /* End: */ 00087 00088 #endif // TEMPLATEMATCHCHANNEL_H_DEFINED
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