3D Display Calibration for Crosstalk Reduction
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Solution Overview
Problem
Inaccurate manufacturing or installation of 3D display apparatuses can lead to degraded image quality and crosstalk in autostereoscopic 3D displays due to incorrect parameters of the 3D conversion devices.
Innovation Solution
A calibration method that adjusts pitch, slanted angle, and start position parameters of 3D conversion devices by capturing and analyzing pattern images, ensuring the gradient and position of linear patterns meet specific thresholds, thereby improving image quality and reducing crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a 3D display apparatus and a 3D conversion apparatus are manufactured or installed, then a 3D image can be projected toward both eyes while preventing crosstalk, but image quality may be degraded due to incorrect parameters
Solution Approach 1:
The patent applies preliminary action by performing calibration before the actual 3D display operation. A calibration pattern is displayed and captured to determine accurate parameters (pitch, slanted angle, start position) of the 3D conversion apparatus, ensuring that the apparatus is correctly configured before producing the final 3D image, thus preventing image quality degradation from incorrect parameters
Solution Approach 2:
The patent implements feedback by capturing an image of the calibration pattern and using this captured information to adjust and determine the parameters of the 3D conversion apparatus. The captured calibration image is processed to feedback the actual parameters, which are then used to correct any deviations from the intended configuration, ensuring accurate 3D image projection
2Manufacturing precision
If complex calibration patterns are used to ensure accurate parameter adjustment, then manufacturing precision improves, but the calibration process becomes more complex and time-consuming
Solution Approach 1:
The patent applies segmentation by dividing the calibration pattern into distinct linear patterns with specific orientations (horizontal and vertical lines). This segmentation allows the calibration process to independently determine different parameters (pitch from horizontal lines, slanted angle from vertical lines), simplifying the overall calibration process while maintaining precision through systematic parameter adjustment
Solution Approach 2:
The patent uses parameter changes by displaying calibration patterns with specific geometric characteristics (linear patterns with known orientations) and adjusting display parameters (pitch, slanted angle, start position) based on the captured and analyzed patterns. The calibration process systematically varies these parameters to determine the correct configuration, achieving accurate parameter adjustment through controlled parameter modification rather than complex pattern analysis
Data Source
AI summary
Disclosed is a method and apparatus for calibrating parameters of a three-dimensional (3D) display apparatus, the method including acquiring a first captured image of a 3D display apparatus displaying a first pattern image, adjusting a first parameter set of the 3D display apparatus based on the first captured image, acquiring a second captured image of the 3D display apparatus displaying a second pattern image based on the adjusted first parameter set, and adjusting a second parameter set of the 3D display apparatus based on the second captured image.