Stereoscopic Display Correction via Phase Pattern Analysis
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Solution Overview
Problem
Existing stereoscopic displays face image quality degradation due to unevenness in the light distribution member, caused by manufacturing deviations and thermal or mechanical stress, leading to inaccurate measurement of optical parameters and local parameter calculation issues.
Innovation Solution
An information processing apparatus and method that includes a captured image acquisition unit, a capturing position acquisition unit, and a correction information output unit to correct display unevenness by analyzing the phase pattern in captured images and adjusting the light distribution state based on the capturing position, allowing for accurate phase information calculation and improved stereoscopic display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light distribution member is used in stereoscopic display, then the stereoscopic effect is achieved, but display unevenness occurs due to manufacturing deviations and thermal or mechanical stress
Solution Approach 1:
The patent applies preliminary action by measuring and creating a correction map before actual stereoscopic display. The system pre-characterizes the light distribution member's optical parameters and stores correction data that compensates for manufacturing deviations and thermal/mechanical stress effects, enabling accurate display without requiring perfect hardware uniformity
Solution Approach 2:
The patent changes parameters by measuring actual optical parameters (lens curvature, pitch, inclination angle) of the light distribution member and using these measured values to generate correction information. This allows the system to adapt to the specific characteristics of each light distribution member, compensating for deviations from ideal specifications
2Measurement precision
If pattern analysis of interference fringes is used to calculate optical parameters, then the optical parameters are obtained, but the display area required for pattern analysis increases
Solution Approach 1:
The patent applies segmentation by dividing the optical parameter measurement into multiple discrete points across the light distribution member rather than requiring a continuous large-area pattern. By measuring parameters at multiple locations and synthesizing correction information from these discrete measurements, the system achieves comprehensive coverage with smaller individual measurement areas
3Adaptability or versatility
If the light distribution member is subjected to thermal or mechanical stress, then the device operates under varying conditions, but the light beam direction deviates from desired direction
Solution Approach 1:
The patent addresses thermal and mechanical stress effects by measuring optical parameters under different conditions and incorporating these variations into the correction information. The system adapts to changing environmental conditions by using measured parameters that reflect actual operating states, compensating for stress-induced deviations in light beam direction
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively corrects display unevenness and enhances image quality by accurately measuring and adjusting the light distribution state, ensuring precise stereoscopic display performance regardless of observation position.
Implementation Method 1
a light distribution member disposed on a display unit that distributes light beams of an image displayed on the display unit
Implementation Method 2
the change in the phase pattern which is included in the captured image and generated according to the capturing position
Data Source
AI summary
A measurement device (10; 10A; 10B) (corresponding to an example of “an information processing apparatus”) includes: a captured image acquisition unit (12a) that acquires the captured image of a stereoscopic display (5) including a light distribution member (5c) disposed on a display unit (5b) that distributes light beams of an image displayed on the display unit (5b) to allow a stereoscopic object to be visually recognized; a capturing position acquisition unit (12b) that acquires the capturing position at the time of acquisition of the captured image; and a calculation unit (12c) or a display control unit (12d) (corresponding to an example of a “correction information output unit”) that outputs correction information for the stereoscopic display (5) for correcting display unevenness of the stereoscopic display (5) based on the change in the phase pattern which is included in the captured image and generated according to the capturing position, and the capturing position.