Stereo-Optical Sensor Lighting Adaptation for Counting Accuracy

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Solution Overview

Problem

Counting systems, such as those using stereo-optical sensor devices, face challenges in obtaining accurate counts due to insufficient lighting conditions, particularly in outdoor settings where luminosity values are low, leading to obscured objects and inaccurate data.

Innovation Solution

The implementation of a method to adjust the brightness of light sources within the field of view of a stereo-optical sensor device using light sensors to determine and adjust luminosity levels, ensuring optimal lighting for accurate object detection and counting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the counting system operates in outdoor areas with varying ambient lighting, then the system can function across different times of day, but image data quality deteriorates when luminosity values are low, causing individuals to be obscured and not counted

Engineering Contradiction:
Improveoperation across different times of dayVSAvoidcounting accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent implements dynamic lighting control by continuously monitoring ambient luminosity values and automatically adjusting the brightness of integrated light sources. The system transitions from static lighting to dynamic adaptation, where lighting intensity changes in real-time based on environmental conditions, ensuring optimal image quality regardless of time of day

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms where light sensors continuously measure ambient luminosity and feed this information back to the controller, which then adjusts the light source intensity accordingly. This closed-loop control ensures that the counting system maintains measurement precision across varying lighting conditions by constantly adapting to environmental changes

Inventive Principle:
Principle #23Feedback

2Measurement precision

If additional light sources are added to improve lighting in the field of view, then image data quality improves, but device complexity increases

Engineering Contradiction:
Improveimage data qualityVSAvoidsystem structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into a single integrated device: the counting system, light sources, light sensors, and control logic are merged into one unified unit. This integration improves image data quality without proportionally increasing system complexity, as the lighting and sensing components are embedded within the existing counting device structure

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The counting device is designed with multi-functionality, serving both as a counting system and as a lighting control system. The integrated light sources and sensors enable the device to perform both object counting and ambient lighting adjustment, reducing overall system complexity by eliminating the need for separate lighting equipment

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution enables the stereo-optical sensor device to maintain accurate counts of individuals by dynamically adjusting light sources based on luminosity values, improving data accuracy across varying lighting conditions.

Implementation Method 1

obtaining, from one or more light sensors of the stereo-optical sensor device, a plurality of values indicative of a luminosity of the field of view

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Implementation Method 2

a stereo-optical camera, one or more light sources, one or more light sensors

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentUS10778957B2Adjustable lighting in a stereo-optical counting device based on ambient lighting
Publication Date: 2020.09.15 SHOPPERTRAK RCT LLC
  • US10778957B2 patent drawing
  • US10778957B2 patent drawing
  • US10778957B2 patent drawing

AI summary

Techniques for adjusting a brightness of a field of view of a stereo-optical sensor device (e.g., of a system used to count individuals) are disclosed. According to an embodiment, the stereo-optical sensor device obtains, from a light sensor of the stereo-optical sensor device, a luminosity value of the field of view of the stereo-optical camera. The stereo-optical sensor device determines, as a function of the luminosity value, whether to adjust a brightness of one or more light sources. The stereo-optical sensor device adjusts, in response to the determination, the brightness of the one or more light sources.