Friendly Reminders:
- For the most up-to-date information regarding this article, please use the following link: https://confluence.sportradar.ag/pages/viewpage.action?pageId=506712291
- Starting August 2023, new features are provided in the reader 's page "Arena reader analyze" to address such events.
If this event is showing up within webadmin or you have a ticket in regards to this matter, it means that the system or client has detected movement of the camscore camera.
New procedure (starting August 2023)
Open the reader's page ("Arena reader analyze").
The page should open with an illustration of the last detected motion in the venue. Follow the two steps be
low to handle/fix the reader:
- Visually check the image(s) illustrating the detected motion. (You can also check which elements in the image were used to detect the motion by clicking on "debug"). Red boxes indicate regions where numbers are currently decoded. Green boxes indicate regions where decoding would take place if configuration was corrected based on the automatically detected motion.
Note: you can also check images of previously detected motion in order to select the most relevant one.- If the detected motion looks meaningful & accurate, click on "Accept selected motion" button to fix the reader. Clicking this button will:
- Correct the position of the digits/numbers in the reader configuration.
- Correct the position of the scoreboard limits.
- Set the new image as the alignment reference.
- Save the new configuration (in dbconfig) both on the server and on AWS dynamoDB.
- Trigger a reload of the configuration (configreload) if a recording is ongoing in the venue.
- Close the event on the dashboard.
- Remove the motion detection images in the "Candidate records".
- If this is a false alarm, delete the event on the dashboard.
- If there is motion, but the detection is not accurate, follow the old procedure (see below).
- If the detected motion looks meaningful & accurate, click on "Accept selected motion" button to fix the reader. Clicking this button will:
- In case no digits were displayed on the scoreboard at the time motion was detected, plan on capturing an image with the numbers showing up after the next recording to set up a digit recognition regression test.
Customization of the motion detection process
motion_detection_threshold_in_pixels
By default, events are created when detected motion amounts to 15 pixels or more. If you need to set it to a more sensitive or less sensitive setting, you can set a custom value for the "motion_detection_threshold_in_pixels" parameter in the reader settings using the Scoreboard configuration tool.
motion_correction_threshold_in_pixels
If motion keeps happening in a venue, and you are confident that the system always accurately detects the motion, you can activate the automatic motion correction. You can set the "motion_correction_threshold_in_pixels" to a value larger than zero to tell the system to adjust automatically the reader while recording (as long as detected motion is smaller than "motion_correction_threshold_in_pixels"). Beware: this feature is experimental! In the case of wrong motion is estimated by the system, it could make the digit decoding fail. Please closely monitor the behavior of the systems which have this feature enabled.
motion_notification_threshold_in_hours
In some venues, the scoreboard is hanging from the ceiling and the scoreboard is set to a different position for practices and is only set to the right position a few hours before the game. The "motion_notification_threshold_in_hours" setting allows the system to create an event only when motion is detected and a recording is about to start (Scheduled to start within the "motion_notification_threshold_in_hours").
Manual correction of a reader after camera motion has been detected
Instructions are formulated below in case motion was not automatically detected or the automatic detected motion is inaccurate.
- If this is a false positive, try adjusting the scoreboard position ('limits") in order to avoid new false alarms. See Setting the "scoreboard limits" in "Scoreboard calibration interface" for hints on how to accomplish.
- If the camera did actually move, adjust the digits and then adjust the scoreboard position. Use the following link "Scoreboard calibration interface" to see the usage.
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