Point Cloud Array Storage Structure for Additive Manufacturing

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Solution Overview

Problem

Existing methods for storing large amounts of geometric data in point clouds, such as those used in additive manufacturing, require disproportionately large storage spaces due to their tabular format, which is inefficient despite advancements in storage and processing capabilities.

Innovation Solution

Storing point cloud data using an array structure where physical coordinate indices are multiplied by a scalar factor to generate array indices, allowing data to be stored in a digital memory with cells addressable by these indices, thereby reducing storage requirements without data loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If point cloud data is stored in a tabular format with separate columns for X position, Y position, and data values, then data organization is simple and accessible, but storage space required is disproportionately large

Engineering Contradiction:
Improvedata organizationVSAvoidstorage space
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The patent merges the X position, Y position, and data value columns into a single array structure. Instead of storing coordinates and values separately in a tabular format, the invention combines them into a compact array where each element contains both spatial information and measurement data, thereby reducing storage requirements while maintaining data accessibility.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transforms the tabular data structure into a different dimensional organization by using array indices to represent spatial coordinates. Instead of storing explicit X and Y coordinate values, the invention uses array position indices to implicitly encode spatial information, changing the data organization from a multi-column table to a indexed array structure that requires less storage space.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If computer storage and processing power are increased to handle large point cloud datasets, then data capacity and speed improve, but cost and resource consumption increase

Engineering Contradiction:
Improvedata capacityVSAvoidresource consumption
Core Design Contradiction:
Quantity of substanceVSLoss of energy

Solution Approach 1:

The patent changes the fundamental parameters of data representation by transitioning from a tabular format with explicit coordinate storage to an array format with implicit coordinate encoding through indices. This parameter change reduces the amount of data that needs to be stored and processed, thereby decreasing resource consumption while maintaining the same data capacity and analytical capabilities.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11422725B2Point-cloud dataset storage structure and method thereof
Publication Date: 2022.08.23 GENERAL ELECTRIC CO
  • US11422725B2 patent drawing
  • US11422725B2 patent drawing
  • US11422725B2 patent drawing

AI summary

A method of storing a set of data representing a point cloud, comprising: creating an array in a digital memory having cells addressable by reference to at least one index, wherein each of the at least one indices has a predetermined correspondence to a geometric location within the point cloud; and storing a value of the data set in each of the cells.