Tile and Slice Partitioning for Efficient Image Decoding

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Solution Overview

Problem

The increasing demand for high-definition video services has led to a significant increase in data volume, and existing video compression standards like HEVC are showing limitations in efficiency.

Innovation Solution

A method of partitioning video signals into tiles, determining slice partitioning structures based on tile partitioning, and partitioning pictures into sub-pictures to enhance encoding/decoding efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If video compression standards like HEVC are used, then compression performance is improved, but encoding/decoding efficiency shows limitations

Engineering Contradiction:

Improvedata volumeVSAvoidencoding/decoding efficiency

Core Design Contradiction:

Quantity of substanceVSProductivity

Solution Approach 1:

The picture is divided into multiple tiles, and each tile is further divided into multiple slices. This hierarchical segmentation allows parallel processing of different tiles and slices, significantly improving encoding/decoding efficiency while maintaining effective compression. The segmentation enables independent processing units that can be handled concurrently, resolving the efficiency limitation of traditional HEVC standards.

Inventive Principle:

Principle #1Segmentation

2Productivity

If a picture is partitioned into multiple tiles with multiple slices, then encoding/decoding efficiency is improved, but the complexity of partitioning structure increases

Engineering Contradiction:

Improveencoding/decoding efficiencyVSAvoidpartitioning structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The picture is systematically divided into tiles, with each tile containing multiple slices. This structured segmentation provides a clear hierarchical organization that balances processing efficiency with manageable complexity. Each slice within a tile can be independently processed, allowing efficiency improvements while maintaining a systematic structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The partitioning structure introduces a two-dimensional hierarchy: pictures are divided into tiles (first dimension), and each tile is divided into slices (second dimension). This dimensional approach organizes the complexity in a structured manner, allowing efficient parallel processing while keeping the partitioning logic systematic and manageable through clear spatial organization.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12581094B2Image signal encoding/decoding method and device therefor

Publication Date: 2026.03.17 KONINKLIJKE PHILIPS NV

AI summary

An image decoding method, according to the present disclosure, comprises the steps of: parsing tile column number information indicating a value wherein 1 is subtracted from the number of tile columns included in the i-th slice; parsing tile row number information indicating a value wherein 1 is subtracted from the number of tile rows included in the i-th slice; and, if the tile column number information and the tile row number information are both 0, further parsing number information related to the number of slices in which height information in a tile including the i-th slice is clearly signaled.