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New Methodology to Detect the Screen Orientation

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Authors: 
Hawaii Xuan, Wade Huang, Bull Tsai, Clare Chou

Abstract:
A method is proposed that uses an outside camera to detect some identification (such as: text) shown on the display and to correct the orientation if needed. Our idea is to detect the orientation of the screen with a camera by using the existing TGCS Edge Cameras. No additional hardware cost would be needed. It could help the customer to save time and be more efficient. 

Background:
We are currently using accelerometers or gyro sensors for our displays to switch the screen orientation for either landscape mode or portrait mode in our TGCS products such as TCx800, TCx810 or any future AIO(All in One) systems.  We do not offer this function in our current Display Products for reasons such as has cost and it may impact the marketing position by that added cost. In the retail scenario, the IT staff will be required to set the orientation or configuration unit by unit. Also, repair staff repairing the system or doing display unit replacement might not get the setting correct.  It brings a lot of difficulties for the on-site person who might not be familiar with the settings. 

Description:
When all the POS systems or POS displays are installed in the checkout lanes, we can use the TGCS Edge Camera installed.  The IT staff will run one of the utilities TGCS provided to do the configuration work.  The utility will send a command set to each  Display including AIO system or 6149 Displays.  It will assign each display an identification means (such as numbers, text or QR codes) to show up on the screen.  Our edge camera will be able to capture each of the identifications and do the analysis if the identification is rotated.  

Such as if we asked the Display 1 to show 'welcome' and the camera captured the “welcome” to be rotated by 90 degrees clockwise, it will be able to send a command to correct the screen orientation.  In this case, the utility will be able to detect all screens in the store and calibrate them in one step.

 

Supporting Art:

iRotate: Automatic Screen Rotation based on Face Orientation

Device and method for adjusting orientation of a data representation displayed on a display

Arbitrary-Oriented Scene Text Detection via Rotation Proposals

 

TGCS Reference 4655

Contact Intellectual Property department for more information