Glassless 3D Display Depth Range Adaptation
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Solution Overview
Problem
Glassless 3D display systems fail to effectively adjust the output depth range based on the input image's depth, leading to deteriorated 3D effects for images with large depth ranges and reduced sharpness for those with small depth ranges.
Innovation Solution
A glassless 3D display apparatus and method that determine an output depth range based on the input image's depth, adjusting the minimum and maximum values of the reference output depth range within the possible depth range to render multi-view images, ensuring optimal 3D rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a predetermined depth is used to render 3D images without adjusting for input image depth range, then the system is simple to operate, but the 3D effect deteriorates for images with large depth ranges and sharpness deteriorates for images with small depth ranges
Solution Approach 1:
The patent implements dynamic adjustment of the output depth range based on the depth range of the input image. The processor automatically determines whether to expand or contract the depth range by comparing the input image's depth range with a reference depth range, and adjusts the minimum and maximum depth values accordingly. This dynamic adaptation ensures optimal 3D effect and image sharpness for images with varying depth characteristics without requiring manual intervention.
Solution Approach 2:
The patent changes the depth rendering parameters (minimum depth value and maximum depth value) based on the input image's depth characteristics. When the input image has a larger depth range than the reference, the processor contracts the depth range by adjusting the minimum and maximum values. When the input image has a smaller depth range, the processor expands it. This parameter adaptation resolves the contradiction between operational simplicity and rendering quality.
2Reliability
If the output depth range is expanded to accommodate images with large depth ranges, then the 3D effect is improved, but image sharpness deteriorates
Solution Approach 1:
The patent dynamically adjusts the depth rendering parameters based on the input image's depth range characteristics. Instead of always expanding the depth range, the processor contracts it when the input image has a larger depth range than the reference, and expands it when the input image has a smaller depth range. This adaptive parameter adjustment ensures both 3D effect quality and image sharpness are maintained across different input images.
3Manufacturing precision
If the output depth range is contracted to improve sharpness for images with small depth ranges, then image sharpness is improved, but the 3D effect deteriorates
Solution Approach 1:
The patent implements conditional parameter adjustment where the depth range is expanded only when the input image has a smaller depth range than the reference, and contracted when the input image has a larger depth range. This conditional approach ensures that sharpness is improved for small depth range images while 3D effect is preserved for large depth range images, resolving the contradiction between these two quality aspects.
Data Source
AI summary
A glassless three-dimensional (3D) display apparatus includes a storage configured to store information on a possible depth range providable by the glassless 3D display apparatus and information on a reference output depth range; a display configured to provide a plurality of image views having different viewpoints to a user; and a processor configured to render the plurality of image views having the different viewpoints based on a depth of an input image, to provide a multi-view image, wherein the processor is configured to adjust, based on the depth of the input image, at least one of a minimum value and a maximum value of the reference output depth range, within the possible depth range, to determine an output depth range corresponding to the input image, and render the plurality of image views based on the determined output depth range.