Three-Dimensional Grid Processing to Reduce Data Transmission Volume

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing techniques for handling three-dimensional data result in large data volumes, leading to narrowed communication bands during transmission.

Innovation Solution

A three-dimensional data processing device that detects areas including subjects at different times and calculates differences using coordinate transformation to improve compression ratios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If three-dimensional data is handled using existing techniques, then data can be processed and transmitted, but the data volume becomes large which narrows the communication band

Engineering Contradiction:

Improvedata volumeVSAvoidcommunication band capacity

Core Design Contradiction:

Quantity of substanceVSProductivity

Solution Approach 1:

The patent divides the three-dimensional space into multiple grid cells and processes each cell independently. By segmenting the data into grids and only transmitting those that have changed between frames, the system reduces the overall data volume while maintaining communication efficiency.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different processing strategies to different grid cells based on their change characteristics. Grids with minimal changes are handled differently from grids with significant changes, allowing optimized data transmission for each local region rather than treating all data uniformly.

Inventive Principle:

Principle #3Local quality

2Measurement precision

If coordinate transformation is calculated for all grid areas, then accurate three-dimensional data processing is achieved, but processing time and computational resources increase

Engineering Contradiction:

Improvethree-dimensional data processing accuracyVSAvoidprocessing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

Instead of calculating coordinate transformations for all grid cells, the patent applies the transformation only to grids that have detected changes between frames. This partial application of the transformation operation maintains processing accuracy for affected areas while significantly reducing overall processing time.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent performs preliminary detection of changes in grid cells before applying coordinate transformations. By pre-identifying which grids have changed, the system avoids unnecessary transformations and optimizes the processing sequence to reduce overall computation time.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12387426B2Three-dimensional grid-based data processing device and three-dimensional grid-based data processing method

Publication Date: 2025.08.12 HITACHI LTD

AI summary

A three-dimensional data processing device according to the present invention detects each of a first area at a first time and a second area at a second time as an area including a subject in three-dimensional data, and calculates a difference of the three-dimensional data between the first time and the second time using coordinate transformation between the first area and the second area.