Cylindrical Lens Array Detection for 3D Display Parallax
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Solution Overview
Problem
Current methods for achieving ultra-multi-viewpoint display for continuous motion parallax in 3D display effects face challenges in accurately detecting and correcting deviations in cylindrical lens parameters, which affect the display quality.
Innovation Solution
A screen detection method that involves receiving a cylindrical lens detection instruction, acquiring browsing images from a target screen with cylindrical lenses, using these images as viewpoint images, and outputting detection parameters of the cylindrical lenses based on image parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cylindrical lens array is attached to the screen at a specific angle to achieve ultra-multi-viewpoint display, then the 3D display effect is improved, but the manufacturing precision and alignment accuracy of the cylindrical lenses deteriorate
Solution Approach 1:
The patent applies preliminary action by capturing reference images of the cylindrical lens array before actual display operation. These reference images are stored and used for subsequent detection and correction of lens parameter deviations, allowing the system to pre-establish a baseline for quality control and maintain manufacturing precision throughout operation.
Solution Approach 2:
The patent implements feedback by continuously detecting the actual positions and orientations of cylindrical lenses using captured images, comparing them against reference values, and generating correction information. This closed-loop feedback mechanism enables real-time monitoring and adjustment of lens parameters, ensuring manufacturing precision is maintained despite initial deviations.
2Measurement precision
If multiple viewpoint images are captured to detect cylindrical lens parameters, then the measurement precision is improved, but the complexity of the detection system increases
Solution Approach 1:
The patent applies universality by using a single image capture device that serves multiple functions: capturing reference images during setup, detecting lens parameters during operation, and providing feedback for correction. This multi-functional approach achieves high measurement precision without requiring separate specialized detection equipment for each function.
Solution Approach 2:
The patent uses copying by creating digital reference images of the cylindrical lens array at known positions and orientations. These digital copies serve as templates for comparison during detection, enabling precise measurement of lens parameter deviations without requiring physical measurement instruments, thus reducing system complexity.
3Measurement precision
If the image acquisition device adjusts shooting position parameters to capture accurate viewpoint images, then the detection accuracy is improved, but the operation time and productivity are reduced
Solution Approach 1:
The patent applies preliminary action by pre-capturing reference images at optimal shooting positions and storing them for later use. During actual detection, the system compares new images against these pre-established references, eliminating the need to repeatedly adjust the image acquisition device to multiple precise positions, thus maintaining detection accuracy while improving productivity.
Solution Approach 2:
The patent implements self-service by enabling the detection system to automatically capture and process images using the stored reference images as guides. The system autonomously determines lens parameter deviations by comparing current images with references, reducing manual intervention and adjustment time, thereby improving detection efficiency without sacrificing accuracy.
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
This method efficiently detects deviations in cylindrical lens parameters, improving the accuracy and quality of the 3D display effect by allowing for precise correction of lens positions and orientations.
Implementation Method 1
attaching a cylindrical lens array to the screen at a specific angle, so that images under different viewpoints are projected to different directions after passing through the cylindrical lens array
Data Source
AI summary
The present disclosure provides a screen detection method, an apparatus and a device, a computer program and a readable medium, and belongs to the technical field of screens. The method includes: receiving a cylindrical lens detection instruction for a target screen, wherein the cylindrical lens detection instruction at least includes target viewpoints; acquiring browsing images shot from the target screen under the target viewpoints in response to the detection instruction, wherein the target screen is a screen of which the light emission side is provided with cylindrical lenses; using the browsing images as viewpoint images under the condition that the browsing images include target contents; and outputting detection parameters of the cylindrical lenses on the target screen based on image parameters of the viewpoint images.