Portable Terminal Image Compositing with Dynamic Region Adjustment
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Solution Overview
Problem
Conventional portable terminals lack the ability to satisfy personal user requirements for image composition, as they fix the position of the user image on a background, failing to provide customizable and aesthetically pleasing composite images.
Innovation Solution
An apparatus and method for compositing images in a portable terminal using two cameras, one at the front and one at the rear, which determine and compose regions of user and background images, allowing for real-time image composition and alpha-blending to create a seamless, customizable composite image, applicable to both still and moving images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the user image is composed at a fixed position on the background image, then the image composition function is simple to implement, but it fails to satisfy personal user requirements and lacks customization
Solution Approach 1:
The patent applies dynamics by making the composition position adjustable rather than fixed. The system allows users to dynamically change the position of the user image on the background image through interaction, transforming a static fixed-position system into a dynamic customizable one. This resolves the contradiction by enabling adaptability without requiring complete system redesign.
Solution Approach 2:
The patent segments the image composition process into distinct functional modules: background image acquisition, user image acquisition, composition region determination, and actual compositing. This segmentation allows the complex customization capability to be broken down into manageable steps, reducing the perceived system complexity while maintaining high adaptability.
2Manufacturing precision
If conventional image composition is used with fixed position, then the processing time is short, but the output image lacks realism and aesthetic quality
Solution Approach 1:
The patent applies preliminary action by determining the composition region and calculating the composition position before actually compositing the images. The system pre-processes the images to identify appropriate regions and compute transformation parameters, which then enables faster actual compositing. This preliminary preparation improves final quality without proportionally increasing total processing time.
Solution Approach 2:
The patent utilizes parameter changes by adjusting composition parameters such as position coordinates, scale factors, and rotation angles to optimize the visual quality of the composite image. By dynamically changing these parameters based on the determined composition region and user input, the system achieves high manufacturing precision while maintaining efficient processing through parameter-based control rather than complex algorithms.
Data Source
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AI summary
A method and apparatus for compositing images in a portable terminal are provided. The method includes acquiring a plurality of images; determining a composition region of each of the plurality of images; andcompositing the plurality of images by using the composition regions of the plurality of images.