Optical Sensor Array Correction via Statistical Evaluation
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Solution Overview
Problem
The existing methods for evaluating and correcting the spatial uniformity of optical sensor arrays, particularly in applications like bio-photoreaction measuring instruments and bio-signal measuring devices, lack accuracy and reliability, as they rely on digital signal processing with external lenses, which is not sufficient for precise pixel-level measurements in these specialized fields.
Innovation Solution
A method is proposed to calculate reliable measurement values by analyzing the statistical characteristics of optical sensor arrays under standard and applied light sources, extracting correction values to account for wavelength and intensity changes, and applying these corrections to ensure accurate pixel-level measurements, even in the absence of external lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If digital signal processing with external lenses is used for evaluating optical sensor arrays, then the evaluation process is simplified, but measurement precision deteriorates
Solution Approach 1:
The patent replaces the mechanical/optical system (external lenses and digital signal processing) with a computational method. By using statistical analysis and correction algorithms on raw sensor data, the system achieves high measurement precision without requiring external optical components, thus simplifying the physical device while maintaining or improving measurement accuracy.
2Reliability
If characteristic evaluation and correction methods are developed for specialized applications, then measurement reliability improves, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by introducing correction coefficients that adjust sensor responses based on statistical analysis. Instead of adding complex hardware, the system modifies the numerical parameters (correction values) to compensate for sensor variations, thereby improving reliability through software-based parameter adjustment rather than hardware complexity.
3Measurement precision
If correction values are calculated for wavelength and intensity changes, then measurement accuracy improves, but processing time increases
Solution Approach 1:
The patent implements preliminary action by pre-calculating correction coefficients through statistical analysis of sensor characteristics. These correction values are determined in advance and stored, allowing rapid application during actual measurements without performing complex calculations in real-time, thus reducing processing time while maintaining accuracy.
Data Source
AI summary
The present invention relates to a method for correcting a packaged optical sensor array module, and the method for correcting a packaged optical sensor array module according to the present invention comprises the steps of: analyzing statistical characteristics of an optical sensor array with respect to light emitted from a standard light source having a predetermined characteristic value to extract a representative value, and calculating a first correction value for a measurement value according to the extracted representative value; and calculating a second correction value for a measured value of the optical sensor array that is corrected by the first correction value with respect to light emitted from an applied light source or light emitted by a fluorescence of the applied light source.