Foreground Picture Size Consistency Across Displays
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Solution Overview
Problem
Existing video display systems face challenges in maintaining a constant size for foreground pictures when displayed on devices with varying sizes and resolutions, leading to distortion.
Innovation Solution
A method and apparatus that acquire foreground information, determine an adjustment coefficient based on the picture size, display device size, and resolution, and adjust the video image to maintain a fixed constant product, ensuring the foreground picture is displayed at a consistent size by adjusting zoom levels accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the video image is displayed directly without adjustment on display devices with different sizes and resolutions, then the display process is simple, but the foreground picture size varies and distortion occurs
Solution Approach 1:
The patent applies preliminary action by calculating and applying an adjustment coefficient to the video image before it is displayed. The receiving end device pre-processes the video image by separating the foreground picture, calculating the adjustment coefficient based on display device parameters, and adjusting the foreground picture size in advance. This ensures that when the video is displayed on different sized devices, the foreground picture maintains a consistent size without requiring manual adjustment during the display process.
2Manufacturing precision
If the foreground picture is adjusted to maintain constant size across different display devices, then the foreground picture fidelity is improved, but the processing complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically calculating an adjustment coefficient based on the parameters of the display device (size and resolution). The receiving end device obtains the display device parameters, uses them to calculate the adjustment coefficient, and then applies this coefficient to scale the foreground picture. This approach maintains foreground picture consistency across different devices while keeping the processing relatively simple by using a mathematical coefficient rather than complex image processing algorithms.
3Area of moving object
If the foreground picture is zoomed in for display on larger devices, then the picture details are more visible, but the picture appears distorted and not at original size
Solution Approach 1:
The patent applies the anti-weight principle by using the adjustment coefficient to counterbalance the natural zooming effect that occurs when video is displayed on different sized devices. When a larger display device would normally zoom in on the foreground picture, the adjustment coefficient is calculated to zoom out the foreground picture in advance by the same proportion. This counteracting action ensures that the foreground picture is displayed at its original size despite the differences in display device dimensions.
Data Source
AI summary
A method for displaying a video image includes acquiring foreground information about a video image to be output, where the foreground information includes information that defines a size of a foreground picture. The method further includes determining an adjustment coefficient for the foreground picture according to the size of the foreground picture, a size and a resolution of a display device, and a preset adjustment rule. The preset adjustment rule indicates that the product of the adjustment coefficient for the foreground picture and a zooming multiple for display on the display device is equal to a fixed constant. The method also includes adjusting the video image to be output according to the adjustment coefficient for the foreground picture, and outputting, to the display device for display, the video image after adjustment.