Camera Module Light Source Saturation Measurement
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Solution Overview
Problem
Existing electronic devices face challenges in measuring the saturation level of a light source in real-time, which can constrain frame rate and increase costs due to the need for multiple images or separate sensors.
Innovation Solution
An electronic device with a camera module, memory, and processor that captures a light source image, divides it into regions, and compares data to determine the actual light amount, allowing for improved image processing without the need for multiple images or separate sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple images with different exposures are used to estimate light source saturation level, then measurement precision is improved, but productivity deteriorates due to constrained real-time operation and frame rate
Solution Approach 1:
The patent extracts the light source image from the captured image data, separating the saturation measurement process from the need for multiple exposure images. By isolating and analyzing only the light source region in a single image, the system achieves saturation level measurement without requiring multiple images, thus resolving the contradiction between measurement precision and frame rate.
2Measurement precision
If a separate sensor is mounted to measure the saturation level of the light source, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent makes the existing image sensor perform multiple functions: capturing both the scene image and the light source image for saturation analysis. By processing different regions of the same captured image data, the system eliminates the need for a separate dedicated sensor, thereby reducing device complexity while maintaining measurement precision.
3Illumination intensity
If pixel data is saturated by a light source, then illumination intensity is improved, but measurement precision deteriorates
Solution Approach 1:
The patent converts the harmful effect of pixel saturation into a beneficial measurement tool. By detecting the saturation level of pixels exposed to the light source, the system infers the actual light amount. The saturation phenomenon, normally considered a measurement error, becomes the basis for accurate light source characterization.
Data Source
AI summary
In an electronic device according to an embodiment of the present disclosure, the electronic device may include a memory, a display which includes a pixel layer including a plurality of pixels and a shielding structure with a hole formed disposed below the pixel layer, a camera module disposed below the shielding structure, and a processor operatively coupled with the camera module and the memory, and the processor may obtain a light source image through the camera module, obtain a first data based on a first length value corresponding to a first region and a second length value corresponding to a second region in the obtained light source image, compare the first data with second data stored in the memory, obtain actual light amount data corresponding to the light source based on a result of the comparison, and improve the image based on the actual light amount data.