boofcv.abst.tracker

Interface TrackerObjectQuad<T extends ImageBase>

All Known Implementing Classes:

Circulant_to_TrackerObjectQuad, Comaniciu2003_to_TrackerObjectQuad, Msl_to_TrackerObjectQuad, Sfot_to_TrackObjectQuad, Tld_to_TrackerObjectQuad

public interface TrackerObjectQuad<T extends ImageBase>

High level interface for an object tracker where the object being tracked is specified using a quadrilateral. The input is assumed to be a sequence of consecutive video images. When initialize is called the tracker is put into its initial state ago and its past history is discarded. The vertices in the quadrilateral are specified in a clock-wise direction (a,b,c,d).

The motion/distortion model used by the trackers will vary. Typical models are (scale,translation), (scale,translation,rotation), and affine. For maximum abstraction, access to the underlying model is not provided through this interface. To access that model invoke the lower level algorithm directly.

Method Summary

Modifier and Type	Method and Description
ImageType<T>	getImageType() Returns information on the type of image that it can process.
boolean	initialize(T image, Quadrilateral_F64 location) Initializes tracking by specifying the object's location using a quadrilateral.
boolean	process(T image, Quadrilateral_F64 location) Updates the tracks location using the latest video frame.

Method Detail

initialize

boolean initialize(T image,
                   Quadrilateral_F64 location)

Initializes tracking by specifying the object's location using a quadrilateral. Some implementations can fail if there is insufficient visual information for it to track. All previous tracking information is discarded when this function is called.

Parameters:

image - Initial image in the sequence

location - Initial location of the object being tracked

Returns:

true if successful and false if not.

process

boolean process(T image,
                Quadrilateral_F64 location)

Updates the tracks location using the latest video frame. initialize(boofcv.struct.image.ImageBase, Quadrilateral_F64) must be called once before this function can be called.

Parameters:

image - The next image in the video sequence.

location - The new location of the object being tracked.

Returns:

true if the target was found and 'location' updated.

getImageType

ImageType<T> getImageType()

Returns information on the type of image that it can process.

Returns:

Image type