FlowCalculator Class Reference

The FlowCalculator class is an interface which defines the structure for the hardware specific algorithm. The algorithm takes two pictures and calculates a flow matrix using the Farneback algorithm. Than the flow matrix is evalutated and reduced to one single flow value. More...

#include <flowcalculator.h>

Inheritance diagram for FlowCalculator:

Public Member Functions
virtual double	calculateFlow (cv::Mat fromMat, cv::Mat toMat)=0
	calculateFlow computes the flow between two images and reduces the resulting flow-matrix to a single floating point value
virtual double	calculateFlow (cv::Mat fromMat, cv::Mat toMat)=0
	calculateFlow computes the flow between two images and reduces the resulting flow-matrix to a single floating point value

Protected Member Functions
double	flowMatToDouble (cv::Mat mat)
	flowMatToDouble reduces a flow-matrix to a single floating point value, if that mat was empty return -1.0
double	flowMatToDouble (cv::Mat mat)
	flowMatToDouble reduces a flow-matrix to a single floating point value, if that mat was empty return -1.0

Private Member Functions
double	median (std::vector< double > vec)
	median calculates the median of a double vector in place
double	median (std::vector< double > vec)
	median calculates the median of a double vector in place

Detailed Description

The FlowCalculator class is an interface which defines the structure for the hardware specific algorithm. The algorithm takes two pictures and calculates a flow matrix using the Farneback algorithm. Than the flow matrix is evalutated and reduced to one single flow value.

Author

Dominic Zahn

Date

2022/04/12

Member Function Documentation

calculateFlow() [1/2]

virtual double FlowCalculator::calculateFlow ( cv::Mat  fromMat, cv::Mat  toMat  )

pure virtual

calculateFlow computes the flow between two images and reduces the resulting flow-matrix to a single floating point value

Parameters

fromMat	cv::Mat which is the image before the posible movement
toMat	cv::Mat which is the image after the posible movement

Returns

doubel which represents the movement between the images

Implemented in FlowCalculatorCpu, FlowCalculatorCuda, FlowCalculatorCpu, and FlowCalculatorCuda.

calculateFlow() [2/2]

virtual double FlowCalculator::calculateFlow ( cv::Mat  fromMat, cv::Mat  toMat  )

pure virtual

calculateFlow computes the flow between two images and reduces the resulting flow-matrix to a single floating point value

Parameters

fromMat	cv::Mat which is the image before the posible movement
toMat	cv::Mat which is the image after the posible movement

Returns

doubel which represents the movement between the images

Implemented in FlowCalculatorCpu, FlowCalculatorCuda, FlowCalculatorCpu, and FlowCalculatorCuda.

flowMatToDouble() [1/2]

double FlowCalculator::flowMatToDouble ( cv::Mat  mat )

protected

flowMatToDouble reduces a flow-matrix to a single floating point value, if that mat was empty return -1.0

Parameters

mat	cv::Mat which hold represents the flow-matrix

Returns

double which represents the reduced flow-matrix

flowMatToDouble() [2/2]

double FlowCalculator::flowMatToDouble ( cv::Mat  mat )

protected

flowMatToDouble reduces a flow-matrix to a single floating point value, if that mat was empty return -1.0

Parameters

mat	cv::Mat which hold represents the flow-matrix

Returns

double which represents the reduced flow-matrix

median() [1/2]

double FlowCalculator::median ( std::vector< double >  vec )

private

median calculates the median of a double vector in place

Parameters

vec	is a double vector

Returns

the median of the double vector

median() [2/2]

double FlowCalculator::median ( std::vector< double >  vec )

private

median calculates the median of a double vector in place

Parameters

vec	is a double vector

Returns

the median of the double vector

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The documentation for this class was generated from the following files:

• iVS3D/src/iVS3D-smoothCameraMovementPlugin/flowcalculator.h
• iVS3D/src/iVS3D-stationaryCameraPlugin/flowcalculator.h
• iVS3D/src/iVS3D-smoothCameraMovementPlugin/flowcalculator.cpp
• iVS3D/src/iVS3D-stationaryCameraPlugin/flowcalculator.cpp