False-Color Image Projection for Spatial Measurement Visualization
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Solution Overview
Problem
Current methods for visualizing spatially resolved measurement results, such as thermographic and ultraviolet/near-infrared images, suffer from low resolution and time delays, making it difficult to identify and address invisible object properties like surface temperature or radiation anomalies in real-time, especially in dynamic or urgent situations.
Innovation Solution
Projecting false-color images directly onto the object using a representation unit, such as a laser-based projector, to immediately visualize spatially resolved measurement results, ensuring minimal time delay and improved clarity, which allows for quicker and more accurate identification of hidden defects or anomalies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If measurement results are displayed on a small display or stored for later report, then the measurement can be processed with standard equipment, but the user cannot immediately and clearly identify the location of invisible properties on the real object
Solution Approach 1:
The patent projects a false-color image (a visual copy of the measurement data) directly onto the measured object. This allows the user to see the measurement results superimposed on the actual object, maintaining perfect spatial correspondence without needing to mentally map between a small display and the real object. The false-color image copies the thermal or other invisible property distribution and displays it in visible light.
Solution Approach 2:
The patent uses a projector as an intermediary device to bridge the gap between the measurement data and the user's visual perception. The projector takes the false-color image data and physically projects it onto the object, serving as a mediator that translates invisible or hard-to-interpret measurement data into immediate visual information on the object itself.
2Measurement precision
If thermographic images are recorded and processed into a report, then comprehensive analysis can be performed, but time passes between measurement and completion of the report
Solution Approach 1:
The patent performs the visualization action immediately during or right after the measurement process, rather than waiting for later report preparation. By projecting the false-color image onto the object in real-time or near-real-time, the system provides immediate feedback while maintaining the precision of the measurement analysis.
Solution Approach 2:
The system provides self-service by automatically processing the measurement data and projecting the false-color image without requiring manual report preparation. The measurement instrument itself performs the visualization function, eliminating the need for separate report generation steps and reducing overall processing time.
3Loss of information
If printed images with explanations are provided, then detailed information can be documented, but it is difficult to re-localize the precise position on the object in situ
Solution Approach 1:
The patent projects a visual copy of the measurement data directly onto the object's surface, preserving the spatial relationships and allowing immediate re-localization. The false-color image maintains the same geometry and scale as the actual object, making it trivial to correlate measurement features with physical locations without needing to reference printed documentation.
4Device complexity
If low-resolution images are used in reports, then storage and processing are simplified, but it is difficult to orient oneself and identify precise defect locations
Solution Approach 1:
The patent uses false-color encoding to represent measurement values, where different colors or brightness levels correspond to different magnitudes of the measured property. This allows precise differentiation of measurement values even when spatial resolution is limited, as the color/brightness variations provide additional discriminative information that helps identify precise defect locations.
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 enables immediate and direct visualization of invisible object properties, facilitating faster and more accurate responses, reducing the risk of misidentification and subsequent damage, and enhancing the efficiency of applications like forensic investigations and defect localization.
Implementation Method 1
the surface temperature or the black-body radiation, which, according to Planck's law, is emitted by every body with a finite temperature
Implementation Method 2
provision is made for the false-color image to be projected onto the object by a representation unit
Data Source
AI summary
In a measuring apparatus (8) having a measuring unit (1) according to the invention a spatially resolved measurement result detected using the measuring unit (1) of an object (16) is converted into a false-color image, and the false-color image is cast back or projected onto the object (16) by a display device (3).