Convolution2D.LsiRoll Method

Convolution2D LsiRoll Method

Virtual Photonics - VTS Library

Virtual Photonics

'Roll' Algorithm, Custom Integration based off Tom, et al, curtesy of Owen Yang Owen Yang, David Cuccia, and Bernard Choi, "Real-time blood flow imaging using the graphics processing unit," (paper in preparation)

Namespace: Vts.Common.Math
Assembly: Vts (in Vts.dll) Version: 1.0.12.0 (1.0.12)

Syntax

C++

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public static void LsiRoll(
	int[] raw,
	float[] speckleContrast,
	float[] speckleFlowIndex,
	int[] rollRow,
	int[] rollColumn,
	int[] rollRowSquared,
	int[] rollColumnSquared,
	int width,
	int height,
	int wR,
	float t
)

public static void LsiRoll(
	int[] raw,
	float[] speckleContrast,
	float[] speckleFlowIndex,
	int[] rollRow,
	int[] rollColumn,
	int[] rollRowSquared,
	int[] rollColumnSquared,
	int width,
	int height,
	int wR,
	float t
)

Public Shared Sub LsiRoll ( 
	raw As Integer(),
	speckleContrast As Single(),
	speckleFlowIndex As Single(),
	rollRow As Integer(),
	rollColumn As Integer(),
	rollRowSquared As Integer(),
	rollColumnSquared As Integer(),
	width As Integer,
	height As Integer,
	wR As Integer,
	t As Single
)

Public Shared Sub LsiRoll ( 
	raw As Integer(),
	speckleContrast As Single(),
	speckleFlowIndex As Single(),
	rollRow As Integer(),
	rollColumn As Integer(),
	rollRowSquared As Integer(),
	rollColumnSquared As Integer(),
	width As Integer,
	height As Integer,
	wR As Integer,
	t As Single
)

public:
static void LsiRoll(
	array<int>^ raw, 
	array<float>^ speckleContrast, 
	array<float>^ speckleFlowIndex, 
	array<int>^ rollRow, 
	array<int>^ rollColumn, 
	array<int>^ rollRowSquared, 
	array<int>^ rollColumnSquared, 
	int width, 
	int height, 
	int wR, 
	float t
)

public:
static void LsiRoll(
	array<int>^ raw, 
	array<float>^ speckleContrast, 
	array<float>^ speckleFlowIndex, 
	array<int>^ rollRow, 
	array<int>^ rollColumn, 
	array<int>^ rollRowSquared, 
	array<int>^ rollColumnSquared, 
	int width, 
	int height, 
	int wR, 
	float t
)

Parameters

raw: Type: System Int32
Raw speckle image

speckleContrast: Type: System Single
Speckle contrast, preallocated 1D matrix

speckleFlowIndex: Type: System Single
Speckle flow index, preallocated 1D matrix

rollRow: Type: System Int32
Preallocated buffer for holding the strip sum in the row

rollColumn: Type: System Int32
Preallocated buffer for holding the strip sum in the column

rollRowSquared: Type: System Int32
Preallocated buffer for holding the strip sums of squared values in the row

rollColumnSquared: Type: System Int32
Preallocated buffer for holding the strip sums of squared values in the row

width: Type: System Int32
Width of the raw speckle image. Also used for calculating the size of the preallocated buffers, the 4 buffers are width*1

height: Type: System Int32
Height of the raw speckle image

wR: Type: System Int32
Size of the sliding window radius

t: Type: System Single
Exposure time of the camera used to obtain the raw speckle images