Disturbance Light Identification via Beam Travel Distance
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Solution Overview
Problem
Existing methods struggle to precisely identify and eliminate disturbance light in optical systems, such as flares or ghosts, which can degrade image quality and hinder applications like traffic monitoring and ADAS systems, due to complex causes and insufficient precision in detection and separation techniques.
Innovation Solution
A disturbance light identifying and separating apparatus that uses modulated light irradiation and a light receiving unit to determine the presence and cause of disturbance light by analyzing the light beam traveling distance, allowing for precise identification and separation of disturbance light components from the optical system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional light amount measurement methods are used to identify disturbance light, then the detection process is simple, but the identification precision is insufficient
Solution Approach 1:
The patent applies preliminary action by measuring the light beam traveling distance before final disturbance light identification. The system first obtains distance information about light paths, then uses this pre-acquired spatial data to accurately identify disturbance light sources and their locations, improving identification precision while maintaining reasonable system complexity
Solution Approach 2:
The patent introduces a new dimension (spatial distance) to the traditional light amount measurement approach. By measuring the traveling distance of light beams in addition to light intensity, the system creates a multi-dimensional detection framework that enables precise disturbance light identification without excessively increasing device complexity
2Object-affected harmful factors
If flare cutter mechanisms or software processing are used to eliminate disturbance light, then some disturbance light can be removed, but the elimination precision is insufficient and cannot sufficiently eliminate all disturbance light
Solution Approach 1:
The patent implements feedback by using the measured light beam traveling distance information to identify and locate disturbance light sources, then applying targeted elimination measures. The system continuously monitors light paths, identifies disturbance sources based on distance data, and adjusts elimination strategies accordingly, achieving both high detection precision and effective disturbance light removal
Solution Approach 2:
The patent replaces conventional mechanical flare cutter mechanisms with a measurement-based identification system. Instead of using physical aperture adjustments or blanket software filtering, the system measures light traveling distances to precisely identify disturbance sources and applies targeted elimination, achieving superior precision without the limitations of mechanical or generic software approaches
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 precise detection and estimation of disturbance light causes, effectively separating and eliminating disturbance light, thereby improving image quality and functionality in various applications.
Implementation Method 1
a light receiving unit that receives light exiting the optical system in response to an incidence of the modulated light from the modulated light irradiation unit
Data Source
AI summary
Disclosed are a disturbance light identifying apparatus, a disturbance light separating apparatus, a disturbance light identifying method, and a disturbance light separating method capable of precisely identifying whether or not light exiting an optical system contains a disturbance light component or capable of separating such a disturbance light component by using a simple technique. Provided are: a modulated light irradiation unit that irradiates an optical system 1 with modulated light; a light receiving unit that receives light exiting the optical system 1 in response to an incidence of the modulated light from the modulated light irradiation unit; and a controlling unit that controls the modulated light irradiation unit and the light receiving unit.