Multi-view Video Coding Depth Scale Equalization
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Solution Overview
Problem
Current multi-view video coding/decoding systems face challenges in efficiently coding and decoding depth information videos due to high data volume and bandwidth limitations in digital broadcasting, which hinders the effective transmission and reception of high-definition stereo videos.
Innovation Solution
The proposed method involves inter and intra predictions for multi-view video coding, with depth information videos being coded using prediction information generated during the multi-view video coding process, and controlling the scales of depth information videos to ensure equalization, allowing for efficient coding and decoding by leveraging the similarities between video and depth information frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multi-view videos are coded using conventional independent coding methods, then each video stream can be processed separately, but the overall data volume remains large and bandwidth requirements are not met
Solution Approach 1:
The patent combines video coding and depth information coding into a unified MVC framework, merging previously independent coding processes. This integration allows shared computational resources and coordinated optimization, reducing overall data volume while improving coding efficiency through joint processing of related data streams
Solution Approach 2:
The patent performs preliminary depth estimation and prediction before final coding, preparing prediction information in advance that can be reused during the actual coding process. This preliminary action reduces the computational burden during main coding operations and decreases the final data volume by eliminating redundant information
2Ease of manufacture
If depth information videos are coded separately from multi-view videos, then coding processes are simple and independent, but coding efficiency is low and bandwidth requirements are not satisfied
Solution Approach 1:
The patent merges video and depth information coding into an integrated MVC system where both data types are processed together. This combination maintains operational simplicity through unified processing pipelines while dramatically reducing transmission data volume by exploiting correlations between video and depth streams
Solution Approach 2:
The patent transforms depth information from raw, high-volume data into compressed depth maps with reduced parameter complexity. By changing the representation parameters of depth information and using prediction techniques, the system maintains coding process simplicity while reducing the quantity of data requiring transmission
3Manufacturing precision
If high-definition stereo videos are transmitted through current digital broadcasting systems, then video quality is maintained, but bandwidth limitations prevent successful transmission
Solution Approach 1:
The patent extracts and transmits only the essential and redundant information between video and depth streams, separating necessary data from unnecessary duplicates. This extraction approach maintains high-definition video quality while improving transmission efficiency by sending only the minimum required data volume through bandwidth-constrained channels
Data Source
AI summary
Provided is a multi-view video coding/decoding method and apparatus which uses coded and decoded multi-view videos to code and decode depth information videos corresponding to the multi-view videos. The multi-view video coding method includes: controlling the scales of first and second depth information videos corresponding to a multi-view video such that the scales are equalized; and coding the second depth information video, of which the scale is controlled, by referring to the first depth information video of which the scale is controlled.