Multispectral Camera Assembly for Marker-Free Target Identification

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Solution Overview

Problem

Current monitoring and tracking devices require targets to wear identification systems like light-emitting diodes or chips, complicating installation and limiting their use in environments where such equipment is impractical.

Innovation Solution

A device comprising an image acquisition system with infrared, thermal, and visible cameras mounted on a common support, allowing detection and identification without requiring target-specific identification systems, with a portable design for easy assembly and maintenance, and protective covers for the cameras.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If targets wear identification systems like light-emitting diodes or chips, then target identification capability is improved, but device complexity and installation difficulty increase

Engineering Contradiction:
Improvetarget identification capabilityVSAvoidinstallation complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts the identification function from the target object and relocates it to the monitoring device itself. By equipping the device with multiple cameras (visible, infrared, thermal) that can independently detect and identify targets, the system eliminates the need for targets to wear identification devices. The identification capability is built into the monitoring system through multi-spectral image processing and pattern recognition algorithms.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The monitoring device integrates multiple camera types (visible, infrared, thermal) into a single universal system that can perform both detection and identification functions simultaneously. This multi-functional approach allows the device to operate in various lighting conditions and identify targets without requiring separate identification equipment on each target.

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

2Reliability

If multiple types of cameras are integrated on a common support, then target detection capability in various conditions is improved, but device structure complexity increases

Engineering Contradiction:
Improvedetection capability in various illumination conditionsVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple camera types (visible, infrared, thermal) onto a single common support structure with a unified housing. This consolidation allows the system to capture data across different spectral ranges simultaneously, ensuring reliable target detection whether in bright light, darkness, or challenging illumination conditions, while maintaining a compact integrated design.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If cameras are mounted on a portable common support, then ease of installation and maintenance is improved, but structural stability may be compromised

Engineering Contradiction:
Improveease of installation and maintenanceVSAvoidstructural stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The common support structure incorporates adjustable and removable mounting features that allow the device to be easily installed and maintained while maintaining structural stability during operation. The portable design includes standardized mounting interfaces and secure fastening mechanisms that ensure stability when deployed, while facilitating easy repositioning and maintenance access.

Inventive Principle:
Principle #15Dynamics

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

Enables target detection and identification in challenging illumination conditions with simplified installation and maintenance, while ensuring camera protection and optimized data acquisition for real-time audiovisual effects.

Implementation Method 1

at least one infrared camera sensitive to waves whose wavelength is between 780 and 1400 nm

Methodology Applied
Scientific EffectInfrared radiation detection: Infrared Radiation

Implementation Method 2

a thermal camera sensitive to waves between 3000 and 14000 nm

Methodology Applied
Scientific EffectThermal radiation detection: Thermal Radiation

Implementation Method 3

a so-called visible camera sensitive to waves between 350 and 780 nm

Methodology Applied
Scientific EffectVisible light detection: Light

Data Source

PatentEP4115323B1Device particularly for detecting and potentially identifying at least one target inside a determined volume and assembly comprising such a device
Publication Date: 2025.07.23 NAOSTAGE
  • EP4115323B1 patent drawingFigure 1
  • EP4115323B1 patent drawingFigure 2
  • EP4115323B1 patent drawingFigure 3

AI summary

Device (1) particularly for detecting and potentially identifying at least one target inside a determined volume (V), the device (1) comprising an image acquisition system (2). The image acquisition system (2) comprises, - at least one infrared camera (3) that is sensitive to waves with a wavelength between 780 and 1400 nm, - a thermal camera (4) that is sensitive to waves between 3000 and 14000 nanometers and - a camera (5), referred to as visible, that is sensitive to waves between 350 and 780 nm. The cameras (3, 4, 5) are mounted on a common support (6) in the form of an elongate, beam-type body. The cameras (3, 4, 5) are arranged on the common support (6), with the fields of view of the cameras (3, 4, 5) having an intersection area (8) that corresponds to the volume (V) to be observed. The optical axes of the cameras (3, 4, 5) arranged on the common support (6) are not aligned and the distance (D) between the optical centers of at least two of the cameras (3, 4, 5) is between 10 cm and 2 m.