Adjacent Item Filtering Using Vertical Retail Compartment Boundaries

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Solution Overview

Problem

Current computer vision (CV) item recognition systems in retail environments suffer from inaccurate item and location mapping due to false positives, making manual verification inefficient and costly in large facilities.

Innovation Solution

A system that utilizes a filter manager to analyze CV item recognition results, identify vertical members of storage compartments, and track them across images to filter out adjacent items, improving item-to-location mapping accuracy by differentiating between target and adjacent compartments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If computer vision item recognition is used to automatically identify products and locations, then productivity is improved, but measurement precision deteriorates due to false positives in item-to-location mapping

Engineering Contradiction:
Improveautomatic item recognition speedVSAvoiditem-to-location mapping accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent introduces vertical member detection as an intermediary step between image capture and item-to-location mapping. The system detects vertical members (shelving structures) to define compartment boundaries, which serve as a mediator to correctly associate items with their locations. This intermediary detection mechanism resolves the false positive problem by establishing proper spatial relationships before final mapping occurs.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the storage structure into distinct compartments by detecting vertical members that define compartment boundaries. This segmentation allows the system to process and map items to specific locations more accurately by treating each compartment as a separate entity, thereby improving measurement precision while maintaining automated productivity.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If manual verification is performed to correct CV errors, then measurement precision is improved, but productivity deteriorates due to time-consuming manual inspection

Engineering Contradiction:
Improveitem-to-location mapping accuracyVSAvoidverification efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent implements self-service by enabling the computer vision system to automatically correct its own mapping errors through vertical member detection and compartment definition. The system performs self-verification by using detected vertical members to validate and correct item-to-location mappings without requiring manual intervention, thus maintaining high measurement precision while preserving productivity.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If comprehensive item recognition is performed across all storage areas, then measurement precision is improved, but use of energy deteriorates due to processing large volumes of data

Engineering Contradiction:
Improvemapping accuracyVSAvoidcomputational energy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent performs preliminary action by detecting vertical members and defining compartment boundaries before conducting full item recognition and mapping. This preliminary structural detection creates a framework that guides subsequent item processing, allowing the system to maintain high measurement precision while reducing computational energy consumption by avoiding unnecessary processing of items outside defined compartments.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250218029A1Adjacent item filtering for accurate compartment content mapping
Publication Date: 2025.07.03 WALMART APOLLO LLC
  • US20250218029A1 patent drawing
  • US20250218029A1 patent drawing
  • US20250218029A1 patent drawing

AI summary

Examples provide a system for filtering the contents of adjacent item storage compartments from item recognition results obtained using computer vision (CV) for more accurate mapping of item locations within a retail environment. A filter manager selects a vertical member and tracks it throughout a series of images generated by an image capture device. The selected vertical member defines at least a portion of a target compartment in each image. The vertical member can be a display case door or a vertical steel bar defining the side of an item storage compartment. A set of adjacent items located on each side of the target compartment is filtered from the item recognition results. The target compartment location is determined based on a location tag of the target compartment. The items remaining after filtering are mapped to the target compartment location while reducing CV item location false positives.