FastPatchList Class Reference [Auxilliary Tools]

Auxilliary Tool: A class that does the necessary book keeping for filtering an image quickly at many scales. FastPatchList is an implementation that sacrifices filtering accuracy for filtering speed. More...

#include <FastPatchList.h>

Inheritance diagram for FastPatchList:

Collaboration diagram for FastPatchList:

List of all members.

Public Member Functions
	FastPatchList (cv::Size minSize=cv::Size(0, 0), cv::Size maxSize=cv::Size(0, 0), double scaleInc=1.2, double stepWidth=1, cv::Size basePatchSize=cv::Size(30, 30), int scaleStepWidth=1)
	Constructor.

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Detailed Description

Auxilliary Tool: A class that does the necessary book keeping for filtering an image quickly at many scales. FastPatchList is an implementation that sacrifices filtering accuracy for filtering speed.

It computes only a single integral image, and filters attempt to scale themselves up, sometimes imperfectly, to filter at different sizes. This contratsts with PatchList, which maintains accuracy at the expense of computing many integral images.

Author:

Nicholas Butko

Date:

2010

Version:

0.4

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Constructor & Destructor Documentation

FastPatchList::FastPatchList	(	cv::Size	minSize = cv::Size(0, 0),
		cv::Size	maxSize = cv::Size(0, 0),
		double	scaleInc = 1.2,
		double	stepWidth = 1,
		cv::Size	basePatchSize = cv::Size(30, 30),
		int	scaleStepWidth = 1
	)

Constructor.

Parameters:

minSize	Don't search for objects smaller than minSize. If minSize is (0,0) then baseObjectSize is used.
maxSize	Don't search for objects larger than maxSize. If maxSize is (0,0), then the upper bound on the object size is the image size.
scaleInc	Relative size of the object in the next scale, compared to the current one. scaleInc must be greater than 1.
stepWidth	Search interval between subsequent patches. A stepWidth of 1 means slide the object evaluation window over one pixel. 2 means only evaluate patches at every other pixel. 1.5 means search two and skip the third, etc.
scaleStepWidth	A boolean (0 or non-zero) value, indicating whether the stepWidth should scale up with the patch size. Setting 1 gives the same relative coverage to all scales, setting to 0 gives relatively finer coverage to larger scales, and searching will take considerably more time.

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

• /Users/nick/projects/NickThesis/Code/OpenCV/src/FastPatchList.h
• /Users/nick/projects/NickThesis/Code/OpenCV/src/FastPatchList.cpp