Dimensioning System Using Numerical Coordinate Extraction
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Solution Overview
Problem
Existing non-contact dimensioning systems relying on structured light patterns require significant computing resources for accurate volume determination, making them inefficient for use in portable devices due to computationally intensive graphical comparisons.
Innovation Solution
The system extracts element location data from acquired images and compiles it into numerical coordinate data lists, allowing for faster comparisons using lower-speed processors, and employs sorting and localized referencing to enhance pattern matching efficiency, enabling accurate volume dimensioning on portable devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If graphical comparison methods are used to match structured light patterns, then measurement precision is improved, but computing resources and processing time increase significantly
Solution Approach 1:
The patent extracts only the necessary coordinate data from the structured light pattern images, separating the essential measurement information from the full graphical data. This extraction allows numerical comparison without processing entire images, reducing computing resource requirements while maintaining measurement precision for volume dimensioning
Solution Approach 2:
The patent replaces the mechanical/graphical image comparison system with a numerical coordinate comparison system. Instead of visually or graphically comparing structured light patterns, the system converts pattern positions to numerical coordinates and performs mathematical comparisons, significantly reducing computational complexity while preserving measurement accuracy
2Measurement precision
If full graphical image comparison is performed, then measurement precision is improved, but processing speed decreases
Solution Approach 1:
The patent extracts only the coordinate information of the structured light pattern elements from the full images, discarding redundant graphical data. This extraction enables rapid numerical comparison of coordinate lists while maintaining the precision needed for accurate pattern matching and volume dimensioning
Solution Approach 2:
The patent changes the data representation parameter from full graphical image data to simplified numerical coordinate data. This parameter transformation allows the system to maintain measurement precision while dramatically improving processing speed by working with compact numerical lists instead of large image files
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly reduces computing resources needed for volume dimensioning, allowing portable electronic devices to provide accurate and efficient volume dimensioning data, overcoming the limitations of previous systems.
Implementation Method 1
an image acquisition device to acquire image data representative of at least an element pattern projected into a three dimensional space
Implementation Method 2
the shift in position (i.e., parallax) of the structured light within the three-dimensional space may be used to determine one or more dimensions of the object
Data Source
AI summary
A dimensioning system can include stored data indicative of coordinate locations of each reference element in a reference image containing a pseudorandom pattern of elements. Data indicative of the coordinates of elements appearing in an acquired image of a three-dimensional space including an object can be compared to the stored data indicative of coordinate locations of each reference element. After the elements in the acquired image corresponding to the reference elements in the reference image are identified, a spatial correlation between the acquired image and the reference image can be determined. Such a numerical comparison of coordinate data reduces the computing resource requirements of graphical comparison technologies.