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Fawkes API
Fawkes Development Version
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Fawkes API
Fawkes Development Version
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Randomized Hough-Transform line model. More...
#include <>>
Public Member Functions | |
| RhtLinesModel (float max_time=0.005, int max_iter=1000, unsigned int nr_candidates=40, float angle_from=0, float angle_range=2 *M_PI, int r_scale=1, float min_votes_ratio=0.2f, int min_votes=-1) | |
| Creates a new RhtLinesModel instance. | |
| virtual | ~RhtLinesModel (void) |
| Destructor. | |
| std::string | getName (void) const |
| Get name of shape model. | |
| int | parseImage (unsigned char *buffer, ROI *roi) |
| Parse image for given ROI. | |
| int | getShapeCount (void) const |
| Get number of shapes. | |
| LineShape * | getShape (int id) const |
| Get specific shape. | |
| LineShape * | getMostLikelyShape (void) const |
| Get best candidate. | |
| std::vector< LineShape > * | getShapes () |
| Get shapes. | |
 Public Member Functions inherited from firevision::ShapeModel | |
| virtual | ~ShapeModel () |
| Virtual empty destructor. | |
Randomized Hough-Transform line model.
Definition at line 43 of file rht_lines.h.
| firevision::RhtLinesModel::RhtLinesModel | ( | float | max_time = 0.005, |
| int | max_iter = 1000, |
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| unsigned int | nr_candidates = 40, |
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| float | angle_from = 0, |
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| float | angle_range = 2 * M_PI, |
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| int | r_scale = 1, |
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| float | min_votes_ratio = 0.2f, |
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| int | min_votes = -1 |
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| ) |
Creates a new RhtLinesModel instance.
Constructor.
| max_time | the maximum runtime of a single parseImage call in seconds, if you set max_iter to a small number this time may not be used completely |
| max_iter | the maximum number of iterations one parseImage will do, if you set max_time to a short time this number may not be reached |
| nr_candidates | the nr of candidates that is considered per pixel (the hole angle range is devided in this many parts/lines |
| angle_from | The angle to start the candidates from, given in rad, 0 is straight up |
| angle_range | the angle range the candidates are taken from starting at angle_from, given in rad, can be used for example to only search for horizontal lines |
| r_scale | This can be done to reduce the size of the hough space and to map more lines to one line |
| min_votes_ratio | The minimum ratio num_votes_per_line/total_num_votes that we have to have before a point in the hough space is considered to be a line, this may actually be higher if you use min_votes and set it to a higher number (set min_votes to 0 to only use min_votes_ration) |
| min_votes | the minimum number of votes a point in the hough space has to have before it is considered to be a line. The number may actually be higher if min_votes_ratio is set too high (set min_votes_ration to 0 to use only min_votes) |
Definition at line 45 of file rht_lines.cpp.
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Destructor.
Definition at line 64 of file rht_lines.cpp.
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Get best candidate.
Implements firevision::ShapeModel.
Definition at line 188 of file rht_lines.cpp.
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Get name of shape model.
Implements firevision::ShapeModel.
Definition at line 74 of file rht_lines.h.
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Get specific shape.
| id | shape ID |
Implements firevision::ShapeModel.
Definition at line 177 of file rht_lines.cpp.
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Get number of shapes.
Implements firevision::ShapeModel.
Definition at line 171 of file rht_lines.cpp.
| vector< LineShape > * firevision::RhtLinesModel::getShapes | ( | ) |
Get shapes.
Definition at line 210 of file rht_lines.cpp.
References firevision::LineShape::calcPoints().
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Parse image for given ROI.
| buffer | image buffer |
| roi | ROI |
Implements firevision::ShapeModel.
Definition at line 73 of file rht_lines.cpp.
References firevision::ROI::get_roi_buffer_start(), firevision::ROI::height, firevision::ROI::line_step, fawkes::rad2deg(), firevision::ROI::width, fawkes::point_t::x, and fawkes::point_t::y.
1.8.1.1 
