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GMU:Tutorials/Performance Platform/Tracking Platform Calibration (view source)
Revision as of 19:04, 22 October 2016
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[[Image:DBL-setup.png|thumb|left|800px]] | [[Image:DBL-setup.png|thumb|left|800px]] | ||
<br style="clear:both"> | <br style="clear:both"> | ||
[[Image:camera-close.png|thumb|left|150px|CLOSER LOOK AT A CAMERA]] | <div style="float:left;">[[Image:camera-close.png|thumb|left|150px|CLOSER LOOK AT A CAMERA]]</div> | ||
[[Image:calibration-board.png|thumb|left|300px|CALIBRATION BOARD]] | <div style="float:left;">[[Image:calibration-board.png|thumb|left|300px|CALIBRATION BOARD]]</div> | ||
[[Image:switch.png|thumb|left|265px|SWITCH]] | <div style="float:left;">[[Image:switch.png|thumb|left|265px|SWITCH]]</div> | ||
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Turn on the computer on the left side and login. On this workstation you have the advantage to use a second monitor. <br> It's useful for the person, that is on stage and wants to see itself while calibrating the cameras or performing something. <br> In case you do not know the password for the user login, ask a person who does. If you managed the login, the desktop appears. <br> You have to start the tracking software with the help of the command line. That is probably the nerdiest part of the calibration process. ;) <br> '''Hint:''' We do have two different versions of [http://www.thecaptury.com The Captury] installed on the Macs. If you want to work with the old version, type now in the command line ''captury'' in lowercase letters. If you want to work with the new version, type now ''captury-new'' in the command line. <br> Please wait a moment until the program is ready for working with it. Yes, it's that easy! <br> | Turn on the computer on the left side and login. On this workstation you have the advantage to use a second monitor. <br> It's useful for the person, that is on stage and wants to see itself while calibrating the cameras or performing something. <br> In case you do not know the password for the user login, ask a person who does. If you managed the login, the desktop appears. <br> You have to start the tracking software with the help of the command line. That is probably the nerdiest part of the calibration process. ;) <br> '''Hint:''' We do have two different versions of [http://www.thecaptury.com The Captury] installed on the Macs. If you want to work with the old version, type now in the command line ''captury'' in lowercase letters. If you want to work with the new version, type now ''captury-new'' in the command line. <br> Please wait a moment until the program is ready for working with it. Yes, it's that easy! <br> | ||
[[Image:captury-start.png|thumb|left|270px]] | <div style="float:left;">[[Image:captury-start.png|thumb|left|270px|START THE CAPTURY VIA COMMAND LINE]]</div> | ||
[[Image:two-monitors.png|thumb|left|530px]] | <div style="float:left;">[[Image:two-monitors.png|thumb|left|530px|YOUR WORKSTATION]]</div> | ||
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'''STEP 02 – Check The Live Preview Of The Cameras''' <br> | '''STEP 02 – Check The Live Preview Of The Cameras''' <br> | ||
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Maybe you will also notice that in the upper right corner mostly everything is red or yellow-ish. <br> Our goal is to make the status icon of calibration and background green. <br> | Maybe you will also notice that in the upper right corner mostly everything is red or yellow-ish. <br> Our goal is to make the status icon of calibration and background green. <br> | ||
[[Image:red.png|thumb|left|400px]] | [[Image:red.png|thumb|left|400px|STATUS OVERVIEW]] | ||
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If you are not happy with the brightness of the camera preview, you can either change the ''Global Brightness'' or the ''Current Camera Brightness'' of the camera, that is orange framed. Make sure the background is neither too bright and nor too dark. <br> | If you are not happy with the brightness of the camera preview, you can either change the ''Global Brightness'' or the ''Current Camera Brightness'' of the camera, that is orange framed. Make sure the background is neither too bright and nor too dark. <br> | ||
[[Image:bright.png|thumb|left|400px|TOO BRIGHT + TOO DARK]] | <div style="float:left;">[[Image:bright.png|thumb|left|400px|TOO BRIGHT + TOO DARK]]</div> | ||
[[Image:okay.png|thumb|left|400px|OKAY]] | <div style="float:left;">[[Image:okay.png|thumb|left|400px|OKAY]]</div> | ||
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Do this job properly. Otherwise you regret it later while tracking somebody. <br> | Do this job properly. Otherwise you regret it later while tracking somebody. <br> | ||
[[Image:one-camera.png|thumb|left|400px]] | <div style="float:left;">[[Image:one-camera.png|thumb|left|400px|INTRINSICS LIVE PREVIEW OF ONE CAMERA]]</div> | ||
[[Image:all-cameras.png|thumb|left|400px]] | <div style="float:left;">[[Image:all-cameras.png|thumb|left|400px|INTRINSICS LIVE PREVIEW OF ALL CAMERAS]]</div> | ||
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There you can calibrate the position and orientations of the cameras. Take the Calibration Board again and press ''Capture Calibration Board'' to start detecting the board. Walk around on the floor in a circular shape while making sure that the board is visible simultaneously by as many cameras as possible. Try to not have you hands on the front of the calibration board. Ideally the correct cameras should overlap. You can check this in the window for each camera. On the upper left is a bar named ''Camera Overlap'''. You're on the right way when the cameras that are next to each other are colored green. The detected points should also turn green. If this is not the case and you're not happy with the result – Do it again. But if it worked – press ''Stop Capturing Calibration Board''. If you and want to cancel the calibration press ''Cancel Calibration''. <br> | There you can calibrate the position and orientations of the cameras. Take the Calibration Board again and press ''Capture Calibration Board'' to start detecting the board. Walk around on the floor in a circular shape while making sure that the board is visible simultaneously by as many cameras as possible. Try to not have you hands on the front of the calibration board. Ideally the correct cameras should overlap. You can check this in the window for each camera. On the upper left is a bar named ''Camera Overlap'''. You're on the right way when the cameras that are next to each other are colored green. The detected points should also turn green. If this is not the case and you're not happy with the result – Do it again. But if it worked – press ''Stop Capturing Calibration Board''. If you and want to cancel the calibration press ''Cancel Calibration''. <br> | ||
[[Image:extrinsics.png|thumb|left|800px]] | [[Image:extrinsics.png|thumb|left|800px|EXTRINSICS OVERVIEW OF ALL CAMERAS]] | ||
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If you are done with the calibration and calibration and background has a green status icon, you can save your calibration with ''File > Save Calibration''. <br> Maybe you want to work with your calibration on another day, then you can also load it with ''File > Load Calibration''. <br> | If you are done with the calibration and calibration and background has a green status icon, you can save your calibration with ''File > Save Calibration''. <br> Maybe you want to work with your calibration on another day, then you can also load it with ''File > Load Calibration''. <br> | ||
[[Image:save-calibration.png|thumb|left|800px]] | [[Image:save-calibration.png|thumb|left|800px|SAVE YOUR CALIBRATION]] | ||
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A last hint: If you notice, that your performer and/or you are part of the few undetectable persons, don't be sad and make sure you wear something bright and colorful to improve the detection. In the worst case, you have to ask somebody else, who can be detected by the system! <br> | A last hint: If you notice, that your performer and/or you are part of the few undetectable persons, don't be sad and make sure you wear something bright and colorful to improve the detection. In the worst case, you have to ask somebody else, who can be detected by the system! <br> | ||
[[Image:person-detected.png|thumb|left|800px]] | [[Image:person-detected.png|thumb|left|800px|SKELETON DETECTION + TRACKING OF THE PERFORMER]] | ||
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