Light Field Display Depth Layering with Overlapped Ranges
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light field near-eye display technologies generate defects and disordered images due to simplification of image processing, leading to unclear three-dimensional virtual images when dividing images into layers based on depth differences.
Innovation Solution
A light field display apparatus and method that provides depth values to a processor to form partially overlapped layered images using extended depth value ranges, reducing defects at discontinuous depth parts and enhancing the three-dimensional sense of depth in the viewed image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the image is divided into layers based on depth differences to simplify image processing, then the computation complexity is reduced, but defects and disordered images are generated at discontinuous depth parts
Solution Approach 1:
The image is segmented into multiple depth layers, with each layer containing pixels corresponding to a specific depth range. This segmentation allows simplified processing of each layer while maintaining overall image quality through proper layer reconstruction.
Solution Approach 2:
The patent introduces an extended depth value range dimension that overlaps between adjacent layers. Instead of strict non-overlapping depth ranges, the extended ranges create a dimensional buffer that prevents defects at depth discontinuities while maintaining processing simplicity.
2Productivity
If the three-dimensional image with depth information is digitally layered to simplify image processing, then the computation is simplified, but defects are generated at discontinuous parts of depths
Solution Approach 1:
The patent performs preliminary action by extending the depth value ranges of adjacent layers before reconstruction. This pre-extension prevents the generation of defects at depth discontinuities during the reconstruction process, ensuring image continuity while maintaining processing efficiency.
Solution Approach 2:
The extended depth value ranges act as a cushioning mechanism between adjacent layers. This beforehand cushioning compensates for the discontinuities that would otherwise occur at depth boundaries, preventing defects and maintaining image reliability throughout the reconstruction process.
Data Source
Figure 1
Figure 2~3
Figure 4A~4B
AI summary
A display method of a light field image adapted to a light field display apparatus is provided. The display method includes the following: providing an image having a plurality of depth values, wherein the depth values represent degrees of distance of the image; respectively obtaining a plurality of pixels in the image corresponding to the depth values respectively falling within a plurality of different extended depth value ranges based on the extended depth value ranges to from a plurality of layered images, wherein the extended depth value ranges are different from each other and are partially overlapped in sequence; forming the light field image based on the plurality of layered images; and providing a signal corresponding to the light field image to a display of the light field display apparatus. In addition, the light field display apparatus is also provided.