Drawing Order Determination for Transparent Image Rendering
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Solution Overview
Problem
Existing display apparatuses face issues with incorrect drawing of downstream images due to transparent regions, leading to inefficiencies in rendering overlapping thumbnail images, particularly when transparent images are involved.
Innovation Solution
A drawing order determining method that identifies and prioritizes opaque images downstream of transparent images, ensuring accurate rendering by determining the opaque image one image behind the transparent image as the first to be drawn, and subsequently arranging opaque images sequentially, along with transparent images, to maintain correct depth information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If upstream images are drawn first to eliminate redundant drawing operations, then drawing speed is improved, but incorrect drawing occurs in downstream images corresponding to transparent regions
Solution Approach 1:
The patent identifies transparent images in advance and performs preliminary actions by drawing opaque images first, then drawing transparent images on top. This preliminary identification and sequencing prevents the incorrect drawing problem while maintaining drawing speed optimization.
Solution Approach 2:
The patent segments the drawing process into two distinct phases: first drawing opaque images, then drawing transparent images. This segmentation resolves the contradiction by ensuring that transparent regions do not interfere with the visibility of downstream opaque images, thereby maintaining both speed and accuracy.
2Productivity
If transparent regions are used to reduce rendering complexity, then processing efficiency is improved, but depth information is lost causing incorrect rendering
Solution Approach 1:
The patent uses opaque images as intermediaries between transparent images and the background. By drawing opaque images first and then overlaying transparent images, the system preserves depth information and ensures correct rendering while maintaining processing efficiency.
Solution Approach 2:
The patent performs preliminary identification of transparent images and establishes the correct drawing sequence before actual rendering. This preliminary action prevents loss of depth information by ensuring that opaque images are drawn before transparent images that may cover them.
Data Source
AI summary
A drawing order determining method according to the present disclosure handles an image group which includes at least one transparent image and a plurality of opaque images and in which arrangement orders of the images are determined in advance and includes an identification step of identifying the positions where the transparent image and the opaque images are placed and a determination step of determining an image to be first drawn in the image group, the determination step including a first step of determining the opaque image one image downstream the transparent image when viewed from the downstream of the arrangement orders as the image to be first drawn and a second step of determining the opaque image at a most upstream arrangement order as the image to be first drawn.