Signal Transceiving Apparatus Bit Depth Compatibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing HD receivers cannot display video with 10-bit bit depth due to compatibility issues with 8-bit bit depth, and there is a need for a method to signal and display video data with different bit depths.
Innovation Solution
A signal transmission method that encodes video data to be compatible with multiple bit depths, generates signaling information to facilitate display in any desired bit depth, and multiplexes the data for transmission, allowing for demultiplexing and decoding based on metadata to achieve compatible bit depth display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If video data is encoded in 10-bit bit depth to provide higher quality image, then image quality is improved, but compatibility with existing 8-bit HD receivers is lost
Solution Approach 1:
The video data is segmented into multiple layers with different bit depths. The 10-bit video data is divided into an 8-bit base layer and a 2-bit enhancement layer. This allows 8-bit receivers to decode and display the base layer, while 10-bit receivers can decode both layers to achieve full 10-bit quality, thus resolving the contradiction between image quality and receiver compatibility
Solution Approach 2:
The solution adds a new dimension to the transmission system by introducing signaling information that indicates the composition and bit depth of video data layers. This signaling dimension enables receivers to adaptively select appropriate decoding strategies based on their capabilities, allowing both 8-bit and 10-bit video quality to be delivered through the same transmission channel
2Adaptability or versatility
If video data is encoded in 8-bit bit depth for compatibility with existing receivers, then receiver compatibility is improved, but image quality and color gamut expression range are reduced
Solution Approach 1:
The video data is segmented into multiple layers with different bit depths. The 10-bit video data is divided into an 8-bit base layer and a 2-bit enhancement layer. This allows 8-bit receivers to decode and display the base layer, while 10-bit receivers can decode both layers to achieve full 10-bit quality, thus resolving the contradiction between image quality and receiver compatibility
Solution Approach 2:
The base layer is prepared in advance in 8-bit format to ensure compatibility with existing receivers. The enhancement layer containing the additional 2 bits of precision is also prepared beforehand. This preliminary segmentation allows receivers to process only what they need without requiring complex real-time conversion, maintaining both compatibility and quality
3Adaptability or versatility
If signaling information is added to indicate bit depth composition, then adaptability to different receiver capabilities is improved, but data transmission complexity increases
Solution Approach 1:
The signaling information uses simple parameter changes to indicate the bit depth composition of video data. By encoding this metadata in a standardized format, the system enables receivers to quickly adapt to different bit depth requirements without complex processing, resolving the contradiction between adaptability and processing complexity
Data Source
AI summary
The present invention relates to a method and an apparatus for transceiving a signal, the method being compatible with an existing HD-based 8-bit bit depth mode while supporting a UHD-based 10-bit bit depth mode, and comprising: multiplexing or inverse-multiplexing video data which can be displayed within the color gamut of any one bit depth from among a plurality of bit depths, and signaling information regarding the display so that the display is within the color gamut of any one bit depth from among the plurality of bit depths; and processing the multiplexed or inverse-multiplexed video data and signaling information.