Reproduction Device Zoom Area Selection for Multi-Resolution Video
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Solution Overview
Problem
Existing video reproduction equipment struggles to reproduce high-resolution video contents like 4K or 8K appropriately across various screen sizes, from large screens to smartphones, without requiring separate content preparations for each screen size and shape.
Innovation Solution
A reproduction device and method that include a decoding unit, a zoom area selecting unit, and a data processing unit. This device selects and applies zoom area information to trim video data or convert audio data, allowing for appropriate content reproduction on different equipment without needing separate content preparations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If video contents are produced in consideration of large screen reproduction (4K/8K high resolution), then the resolution quality is improved for large screens, but the content becomes inappropriate for reproduction on small screens (tablets, smartphones)
Solution Approach 1:
The video content is segmented into multiple resolution versions (e.g., 4K, 2K, HD) and stored separately. The reproduction device automatically selects the appropriate resolution version based on the screen size of the reproduction equipment, enabling high-resolution playback on large screens while appropriately adapting to smaller screens without requiring separate content preparation for each device type.
Solution Approach 2:
The patent changes the resolution parameter of the video content to match different reproduction equipment screen sizes. By preparing content in multiple resolution parameters and selecting the appropriate one based on device capabilities, the system maintains optimal quality across various screen sizes without requiring manual intervention or separate content creation for each device.
2Adaptability or versatility
If separate content is prepared for each screen size and shape, then the appropriateness of content for each device is improved, but the complexity of content management and reproduction device increases
Solution Approach 1:
The reproduction device is designed with universal functionality to handle multiple content resolutions. It includes a screen size detection unit that automatically identifies the reproduction equipment type and selects the appropriate content version, eliminating the need for separate content preparation for each device type while maintaining optimal playback quality across all devices.
Solution Approach 2:
The reproduction device performs self-service by automatically detecting its own screen size characteristics and selecting the appropriate content resolution without user intervention. The device autonomously determines whether to play back 4K, 2K, or HD content based on its hardware capabilities, simplifying both content management and user operation.
3Ease of manufacture
If the same content is reproduced on all devices by enlarging or reducing, then the content delivery is simplified, but the reproduction quality becomes inappropriate for different screen sizes
Solution Approach 1:
The content is prepared in advance in multiple resolution versions (4K, 2K, HD) before distribution. This preliminary segmentation allows the reproduction device to simply select the appropriate pre-prepared version based on screen size, maintaining both content delivery simplicity and reproduction quality without requiring complex real-time processing or user intervention.
Data Source
AI summary
The present technology relates to an encoding device, an encoding method, a reproduction device, a reproduction method, and a program enabling each reproduction equipment to reproduce an appropriate content in a simplified manner. A content data decoding unit decodes encoded metadata and outputs zoom area information, which is included in metadata acquired as a result thereof, designating an area to be zoomed. A zoom area selecting unit selects one or a plurality of pieces of zoom area information from among the zoom area information. A video segmenting unit segments a zoom area represented by the selected zoom area information in a video based on video data and outputs zoom video data acquired as a result thereof. An audio converting unit performs an audio converting process according to the selected zoom area information for audio data and outputs zoom audio data acquired as a result thereof. The present technology can be applied to a reproduction device.