Light Filtering Device Segmentation for Optical Tracking Noise Rejection
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Solution Overview
Problem
Existing optical tracking systems are affected by noise light sources, such as environment or fluorescent light, which interfere with the accuracy of tracking objects that emit specific frequencies of light, like infrared.
Innovation Solution
A light source determining apparatus with a light filtering device having at least one region that passes only specific frequency light and another region that passes both specific and other frequencies, combined with a determining unit that assesses luminosity in both regions to identify the type of light source, allowing for precise object tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single light filtering region is used to pass only specific frequency light, then tracking precision is improved, but device complexity increases due to additional filtering components
Solution Approach 1:
The image sensing chip is divided into multiple regions (first region and second region) with different light filtering characteristics. The first region passes only light with specific frequency while the second region passes light with both specific and other frequencies, enabling simultaneous tracking precision and environmental light consideration without adding complex external filtering components
Solution Approach 2:
The image sensing chip performs multiple functions by integrating different light filtering capabilities within the same device. The first region provides frequency-selective filtering for precise tracking, while the second region provides broader spectral sensitivity for environmental light reference, eliminating the need for separate filtering devices
2Measurement precision
If environmental light sources are excluded from tracking, then tracking accuracy is improved, but loss of information about environmental lighting conditions occurs
Solution Approach 1:
The image sensing chip is segmented into a first region for precise frequency tracking and a second region for environmental light detection. This segmentation allows the system to simultaneously obtain accurate tracking information from the first region while preserving environmental lighting information from the second region, preventing information loss
Solution Approach 2:
The second region acts as an intermediary that captures environmental light information without interfering with the primary tracking function. By having the second region pass both specific and other frequencies, it serves as a mediator that records ambient lighting conditions while the first region handles precise object tracking
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 accurate object tracking by distinguishing between specific and noise light sources, improving tracking accuracy and efficiency by adjusting image scanning frequency and area based on luminosity differences between filtered regions.
Implementation Method 1
a light filtering device, comprising at least one first region and at least one second region, wherein the first region can pass only light with a specific frequency, where the second region can pass not only light with the specific frequency but also light with other frequencies
Data Source
AI summary
A light source determining apparatus for determining if a light source is a specific type light source is disclosed. The light source determining apparatus comprises: a light filtering device, comprising at least one first region and at least one second region, wherein the first region can pass only light with a specific frequency, where the second region can pass not only light with the specific frequency but also light with other frequencies; and a determining unit, for determining if the light source is the specific type light source, according to luminosity that the light source respectively generates for the first region and the second region.