stella.acquire

Interface ImageClassifying

All Known Implementing Classes:

TruncatedGaussClassification

public interface ImageClassifying

This interface defines methods that enable an object to measure deviations in the pointing of the telescope in a CCD pixel system.

Author:

wooz

Method Summary

Modifier and Type	Method and Description
List<StarDetection>	detect(MImageHDU reduced, Rectangle readout, Dimension bin) Converts a reduced detector image into a list of possible stars.
List<StarDetection>	removeGhosts(List<StarDetection> mirrors, List<StarDetection> found) Some acquisition systems may produce ghost images of bright stars.
List<StarDetection>	removeMirrors(List<StarDetection> found) Some acquisition systems may produce mirror images of bright stars.
List<StarDetection>	removeSpurious(List<StarDetection> found) Removes the spurious detections from the list of stars detected.
List<StarDetection>	removeStripes(List<StarDetection> found) On a shutterless system, read-out stripes may accidentally be identified as stars.
boolean	setReadoutStripes(int adu) Expected ADU signal for a read-out stripe on shutterless systems.
boolean	setShutterless(boolean noshutter) Acquisition is on a shutterless system.

Method Detail

setShutterless

boolean setShutterless(boolean noshutter)

Acquisition is on a shutterless system.

setReadoutStripes

boolean setReadoutStripes(int adu)

Expected ADU signal for a read-out stripe on shutterless systems.

detect

List<StarDetection> detect(MImageHDU reduced,
                           Rectangle readout,
                           Dimension bin)
                    throws BasicFitsException

Converts a reduced detector image into a list of possible stars.

Parameters:

reduced -

readout -

bin -

Returns:

Throws:

BasicFitsException

removeSpurious

List<StarDetection> removeSpurious(List<StarDetection> found)

Removes the spurious detections from the list of stars detected.

Parameters:

found - All possible stars, on return without spurious detections

Returns:

The spurious list or null.

removeStripes

List<StarDetection> removeStripes(List<StarDetection> found)

On a shutterless system, read-out stripes may accidentally be identified as stars. This method removes those from the list.

Parameters:

found - All possible stars, on return without stripes

Returns:

The read-out stripes or null.

removeMirrors

List<StarDetection> removeMirrors(List<StarDetection> found)

Some acquisition systems may produce mirror images of bright stars. This method removes those from the list.

Parameters:

found - All possible stars, on return without mirrors.

Returns:

The mirror images or null.

removeGhosts

List<StarDetection> removeGhosts(List<StarDetection> mirrors,
                                 List<StarDetection> found)

Some acquisition systems may produce ghost images of bright stars. Different to mirror images, they may be visible only in certain areas or with different dependency to the source position than mirrors. This method removes those from the list.

Parameters:

found - All possible stars, on return without ghosts.

Returns:

The ghost images or null.