cv::cuda::FGDParams Struct Reference

#include <opencv2/cudalegacy.hpp>

Collaboration diagram for cv::cuda::FGDParams:

Public Member Functions
	FGDParams ()
	default Params

Public Attributes
float	alpha1
	How quickly we forget old background pixel values seen. Typically set to 0.1.
float	alpha2
	"Controls speed of feature learning". Depends on T. Typical value circa 0.005.
float	alpha3
	Alternate to alpha2, used (e.g.) for quicker initial convergence. Typical value 0.1.
float	delta
	Affects color and color co-occurrence quantization, typically set to 2.
bool	is_obj_without_holes
	If TRUE we ignore holes within foreground blobs. Defaults to TRUE.
int	Lc
	Quantized levels per 'color' component. Power of two, typically 32, 64 or 128.
int	Lcc
	Quantized levels per 'color co-occurrence' component. Power of two, typically 16, 32 or 64.
float	minArea
	Discard foreground blobs whose bounding box is smaller than this threshold.
int	N1c
	Number of color vectors used to model normal background color variation at a given pixel.
int	N1cc
	Number of color co-occurrence vectors used to model normal background color variation at a given pixel.
int	N2c
	Used to allow the first N1c vectors to adapt over time to changing background.
int	N2cc
	Used to allow the first N1cc vectors to adapt over time to changing background.
int	perform_morphing
	These erase one-pixel junk blobs and merge almost-touching blobs. Default value is 1.

Constructor & Destructor Documentation

FGDParams()

cv::cuda::FGDParams::FGDParams

(

)

default Params

Member Data Documentation

alpha1

float cv::cuda::FGDParams::alpha1

How quickly we forget old background pixel values seen. Typically set to 0.1.

alpha2

float cv::cuda::FGDParams::alpha2

"Controls speed of feature learning". Depends on T. Typical value circa 0.005.

alpha3

float cv::cuda::FGDParams::alpha3

Alternate to alpha2, used (e.g.) for quicker initial convergence. Typical value 0.1.

delta

float cv::cuda::FGDParams::delta

Affects color and color co-occurrence quantization, typically set to 2.

is_obj_without_holes

bool cv::cuda::FGDParams::is_obj_without_holes

If TRUE we ignore holes within foreground blobs. Defaults to TRUE.

Lc

int cv::cuda::FGDParams::Lc

Quantized levels per 'color' component. Power of two, typically 32, 64 or 128.

Lcc

int cv::cuda::FGDParams::Lcc

Quantized levels per 'color co-occurrence' component. Power of two, typically 16, 32 or 64.

minArea

float cv::cuda::FGDParams::minArea

Discard foreground blobs whose bounding box is smaller than this threshold.

N1c

int cv::cuda::FGDParams::N1c

Number of color vectors used to model normal background color variation at a given pixel.

N1cc

int cv::cuda::FGDParams::N1cc

Number of color co-occurrence vectors used to model normal background color variation at a given pixel.

N2c

int cv::cuda::FGDParams::N2c

Used to allow the first N1c vectors to adapt over time to changing background.

Number of color vectors retained at given pixel. Must be > N1c, typically ~ 5/3 of N1c.

N2cc

int cv::cuda::FGDParams::N2cc

Used to allow the first N1cc vectors to adapt over time to changing background.

Number of color co-occurrence vectors retained at given pixel. Must be > N1cc, typically ~ 5/3 of N1cc.

perform_morphing

int cv::cuda::FGDParams::perform_morphing

These erase one-pixel junk blobs and merge almost-touching blobs. Default value is 1.

Number of erode-dilate-erode foreground-blob cleanup iterations.

---

The documentation for this struct was generated from the following file:

• opencv2/cudalegacy.hpp