Image Mixing Using Transparency Data for Graphic Overlay Positioning
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Solution Overview
Problem
Existing image processing technologies face errors and deteriorated image quality when attempting to discern and process graphic images overlapped with video images, particularly due to incorrect determination of the graphic image's position and transparency, leading to issues during movement estimation and frame rate conversion.
Innovation Solution
An image processing apparatus and method that utilize transparency information to accurately determine the position of graphic images, generating a transparency map to distinguish between overlapped areas and applying this information for correct image mixing and processing, including a control unit to extract and classify transparency data for precise image processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a graphic image and a video image are discerned by regarding a specific area as graphic video, then the image processing can be performed, but the clear grasp of the overlapped area becomes impossible, causing errors in image processing and deteriorating image quality
Solution Approach 1:
The patent introduces transparency information as an intermediary element between the graphic image and video image. This transparency information serves as a mediator that provides precise position and overlap data, enabling accurate distinction between graphic and video regions without relying on presumptive area classification methods
Solution Approach 2:
The patent replaces the mechanical/empirical method of presumptive area classification with an information-based approach using transparency data. Instead of mechanically dividing areas and presuming graphic/video regions, the system uses transparency information to precisely identify graphic image positions and overlap characteristics
2Measurement precision
If transparency information is used to determine graphic image position, then position accuracy improves, but the complexity of extracting and processing transparency data increases
Solution Approach 1:
The patent performs preliminary extraction and classification of transparency information into distinct data groups before the main image processing occurs. By preparing the transparency data structure in advance and organizing it into classified groups, the system reduces processing complexity during subsequent graphic and video image differentiation
Solution Approach 2:
The patent segments the transparency information into different data groups based on transparency characteristics. This segmentation allows the system to process transparency data in manageable portions, reducing overall processing complexity while maintaining position determination accuracy
Data Source
AI summary
An image processing apparatus and an image processing method processing a graphic image are provided. An image processing apparatus including: a display unit; a first image output unit which outputs a first image signal; a second image output unit which outputs a second image signal and a transparency information with respect to the second image signal; an image mixing unit which outputs a third image signal mixing the first image signal and the second image signal by using the transparency information; an image processing unit which processes the third image signal to output to the display unit; and a control unit which extracts the transparency information from the second image output unit, and outputs a position information about which the second image signal is displayed in the display unit based on the extracted transparency information to the image processing unit.