SDI Mapping Unit for Bayer Arrangement Video Transmission

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

There is no established technology for transmitting video data with a Bayer arrangement, where pixels are arranged on a 2×2 block basis, using the Serial Digital Interface (SDI).

Innovation Solution

A signal processing apparatus and method that multiplexes pixel data corresponding to different colors of video data arranged in a 2×2 block basis within a predetermined SDI format, allowing for the transmission of video data with a Bayer arrangement using SDI. This involves a mapping unit that configures data streams to accommodate the specific bit lengths and color arrangements, enabling the transmission of video data with pixels arranged in a 2×2 block structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If video data with Bayer arrangement (2×2 pixel blocks) is transmitted using SDI, then the transmission capability for specialized video formats is improved, but compatibility with standard SDI formats and established transmission protocols deteriorates

Engineering Contradiction:

Improvetransmission capability for Bayer arrangement video dataVSAvoidcompatibility with standard SDI formats

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The pixel data of each color component (R, G1, G2, B) is segmented and multiplexed into separate data streams. Each color's pixel data is transmitted in dedicated time slots within the SDI frame structure, allowing the Bayer arrangement to be transmitted while maintaining compatibility with standard SDI protocols through systematic division of the data transmission channels.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The Bayer arrangement pixel data is nested within the standard SDI data stream structure. The 2×2 pixel block data is embedded into the SDI frame by allocating specific areas for each color component, effectively nesting the specialized format within the conventional transmission protocol framework.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Productivity

If pixel data is multiplexed into SDI data streams with fixed bit lengths, then data transmission efficiency is improved, but handling of variable bit length pixel data deteriorates

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidhandling complexity of variable bit length data

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system changes the parameter of data stream organization by creating multiple data streams with different bit length allocations. When pixel data has variable bit length, the system adjusts the multiplexing scheme to accommodate the actual data size, allowing efficient transmission by matching the data stream parameters to the actual pixel data requirements rather than using fixed allocations.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9479789B2Signal processing apparatus, signal processing method, program, and signal transmission system

Publication Date: 2016.10.25 SONY GROUP CORP

AI summary

A signal processing apparatus includes a mapping unit configured to multiplex first to fourth pixel data with respect to areas of first to fourth signals of a data stream prescribed in a predetermined SDI (Serial Digital Interface) format, respectively. The first to fourth pixel data respectively correspond to first to fourth colors of video data in which pixels are arranged on a block basis with 2×2 pixels as the block, and the 2×2 pixels respectively correspond to the first to fourth colors.