Transmission Device Scalable Video Stream Encoding
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Solution Overview
Problem
Current technologies face challenges in successfully transmitting a predetermined number of high-quality format image data alongside basic format image data, particularly in ensuring efficient decoding and display based on display capabilities.
Innovation Solution
A transmission device and reception device configuration that includes a transport stream containing both basic and high-quality video streams, with identification information inserted into the encoded image data to enable selective decoding and display based on display capabilities, using predictive encoding processes like H.264/AVC or H.265/HEVC, and inserting scalable extension descriptors to define the format of the encoded data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple high-quality format image data are transmitted together with basic format image data, then the quality and versatility of displayed images are improved, but the complexity of encoding and decoding processes increases
Solution Approach 1:
The image data is segmented into multiple layers with different quality levels (basic format and high-quality format). Each layer is independently encoded and can be selectively decoded based on display capabilities, reducing the complexity of processing all data uniformly while maintaining adaptability.
Solution Approach 2:
The system dynamically selects which image data to decode and display based on the reception device's display capabilities. The decoding process adapts in real-time to the device's performance, enabling versatile display quality adjustment without requiring complex pre-processing of all possible formats.
2Ease of operation
If identification information is inserted into encoded image data to enable selective decoding, then the ease of operation is improved, but the amount of data to be processed increases
Solution Approach 1:
Identification information is inserted into the encoded image data during the encoding phase, before transmission. This preliminary action enables the reception device to quickly identify and select appropriate image data without requiring complex analysis during decoding, reducing the processing burden while maintaining ease of operation.
3Adaptability or versatility
If scalable extension descriptors are inserted to define encoded data format, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The scalable extension descriptor uses a universal structure that can define multiple different encoded data formats through a consistent template. This multi-functional approach allows the system to adapt to various formats without requiring separate processing logic for each format, reducing complexity while maintaining high adaptability.
Data Source
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AI summary
A predetermined number of pieces of high-quality format image data are successfully transmitted together with basic format image data. A basic video stream including encoded image data of basic format image data and an extended video stream including encoded image data of each of a predetermined number of pieces of high-quality format image data are generated, or a video stream including encoded image data of basic format image data and encoded image data of each of a predetermined number of pieces of high-quality format image data is generated. A container of a predetermined format including the generated video stream is transmitted. Identification information identifying a corresponding format is inserted into the encoded image data of the basic format image data and each of a predetermined number of pieces of high-quality format image data.