cv::ECCParameters Struct Reference

struct ECCParameters is used by findTransformECCMultiScale More...

#include <opencv2/video/tracking.hpp>

Public Member Functions
	ECCParameters ()

Public Attributes
cv::TermCriteria	criteria
int	gaussFiltSize = 5
int	interpolation = INTER_LINEAR
std::vector< int >	itersPerLevel
int	motionType = MOTION_AFFINE
int	nlevels = 4

Detailed Description

struct ECCParameters is used by findTransformECCMultiScale

Parameters

motionType	parameter, specifying the type of motion: MOTION_TRANSLATION sets a translational motion model; warpMatrix is \(2\times 3\) with the first \(2\times 2\) part being the unity matrix and the rest two parameters being estimated. MOTION_EUCLIDEAN sets a Euclidean (rigid) transformation as motion model; three parameters are estimated; warpMatrix is \(2\times 3\). MOTION_AFFINE sets an affine motion model (DEFAULT); six parameters are estimated; warpMatrix is \(2\times 3\). MOTION_HOMOGRAPHY sets a homography as a motion model; eight parameters are estimated;`warpMatrix` is \(3\times 3\).
criteria	parameter, specifying the termination criteria of the ECC algorithm; criteria.epsilon defines the threshold of the increment in the correlation coefficient between two iterations (a negative criteria.epsilon makes criteria.maxcount the only termination criterion). Default values are shown in the declaration above.
itersPerLevel	Criterion extension: distribution of iterations limit over pyramid levels. Can be empty, in this case, this algorithm will use criteria.maxCount on each level.
gaussFiltSize	An optional value indicating size of gaussian blur filter; (DEFAULT: 5)
nlevels	An optional value indicating amount of levels in the pyramid; (DEFAULT: 4)
interpolation	Type of warp interpolation. Possible values are INTER_NEAREST and INTER_LINEAR. Affects accuracy, especially when motionType == MOTION_TRANSLATION. (DEFAULT: INTER_LINEAR)

Constructor & Destructor Documentation

ECCParameters()

cv::ECCParameters::ECCParameters

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Member Data Documentation

criteria

cv::TermCriteria cv::ECCParameters::criteria

gaussFiltSize

int cv::ECCParameters::gaussFiltSize = 5

interpolation

int cv::ECCParameters::interpolation = INTER_LINEAR

itersPerLevel

std::vector<int> cv::ECCParameters::itersPerLevel

motionType

int cv::ECCParameters::motionType = MOTION_AFFINE

nlevels

int cv::ECCParameters::nlevels = 4

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

• opencv2/video/tracking.hpp