Image Transmission Apparatus Overscan Safe Area Segmentation
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Solution Overview
Problem
In scenarios like live game broadcasts or multiplayer games, the transmission destination may display an image different from the actual image displayed at the transmission source due to overscan, where the entire frame image is transmitted but only a portion is displayed.
Innovation Solution
An image transmission apparatus and method that generates a display target image reflecting safe area settings, displays only a portion of this image, and transmits a corresponding transmission image excluding non-target regions, ensuring the destination displays an image similar to the source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the entire frame image is transmitted to the destination, then the complete image data is available at the destination, but the displayed image differs from the actual display image due to overscan
Solution Approach 1:
The frame image is segmented into multiple regions: a display target region that will be actually displayed, and a display non-target region that will be cropped by overscan. The transmission image generation section extracts only the display target region for transmission, while the display target image generation section prepares the complete frame image for local display. This segmentation resolves the contradiction by sending only the necessary portion while maintaining display accuracy.
Solution Approach 2:
The system changes the parameter of the transmitted image by adjusting its scope and content based on safe area settings. Instead of transmitting the entire frame image, the transmission image generation section generates a transmission image that excludes the display non-target region, transforming the image parameters to match the actual display area and eliminate overscan discrepancies.
2Measurement precision
If the transmission image excludes the display non-target region, then the destination displays an image similar to the source, but additional processing sections are required
Solution Approach 1:
The display target image generation section and transmission image generation section are integrated within the same image transmission apparatus. This merging allows the system to simultaneously generate both the display target image (for local display) and the transmission image (for remote transmission) from the same frame image, using shared processing resources and reducing overall system complexity despite the additional processing requirements.
Solution Approach 2:
The image transmission apparatus performs multiple functions: it generates display target images for local display, creates transmission images for remote transmission, and handles safe area settings. By making the apparatus multi-functional, the patent reduces the need for separate dedicated devices for each function, thereby managing complexity while achieving accurate image transmission.
3Stability of the object's composition
If safe area settings are applied to generate the display target image, then the actual display image is preserved, but the processing required to generate transmission images increases
Solution Approach 1:
The display target image generation section performs preliminary processing by generating the display target image with safe area settings applied before the transmission image generation occurs. This preliminary action establishes the correct display parameters and regions in advance, allowing the transmission image generation section to efficiently extract the appropriate portions without re-processing the entire frame image, thereby maintaining productivity.
Data Source
AI summary
An image transmission apparatus, an image transmission method, and a program enable a transmission destination to display an image similar to the image displayed at a transmission source. A display target image generation section generates a display target image having a display non-target region reflecting settings of a safe area of a display section. A display control section causes the display section to display an actual display image constituting a portion of the display target image. A transmission image generation section generates a transmission image that represents a portion of the display target image and excludes at least a portion of the display non-target region. A transmission section transmits the transmission image.