Adaptive Visible Light Control for Reliable Vehicle Image Recognition
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Solution Overview
Problem
In low illuminance environments, visible images captured by vehicle cameras suffer from noise and blur, leading to decreased accuracy in image recognition processing, while high illuminance areas experience pixel saturation, further deteriorating detection accuracy.
Innovation Solution
An information processing apparatus that performs image recognition and calculates the reliability of recognition results for each area, then controls the irradiation pattern of visible light to enhance the reliability of image recognition processing in recognized areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visible light is irradiated to improve image recognition accuracy, then recognition accuracy improves, but noise and blur increase in low illuminance areas while pixel saturation occurs in high illuminance areas
Solution Approach 1:
The patent applies local quality by controlling the irradiation pattern of visible light to be non-uniform across different spatial regions. Specifically, the irradiation intensity is adjusted according to the illuminance characteristics of each area: reduced in high illuminance regions to prevent pixel saturation, and maintained or enhanced in low illuminance regions to improve signal quality. This spatially varying irradiation control resolves the contradiction by optimizing local image quality rather than applying uniform lighting.
Solution Approach 2:
The patent changes the parameter of visible light irradiation intensity dynamically based on detected illuminance conditions. The system adjusts the irradiation pattern parameter to modify light distribution, reducing intensity in areas where pixel saturation occurs and maintaining sufficient intensity in low illuminance areas. This parameter adjustment resolves the technical contradiction by adapting the irradiation characteristics to the specific imaging conditions.
2Ease of operation
If uniform irradiation pattern is used, then simplicity of control is maintained, but image quality deteriorates due to noise in low illuminance areas and saturation in high illuminance areas
Solution Approach 1:
The patent transitions from a static uniform irradiation pattern to a dynamic adaptive irradiation pattern. The system continuously detects illuminance conditions and adjusts the irradiation pattern accordingly, making the control system dynamic rather than static. This dynamic approach maintains ease of operation through automated control while significantly improving image recognition accuracy by adapting to varying lighting conditions.
Solution Approach 2:
The patent implements feedback control by using detection results from the imaging device to adjust the irradiation pattern. The system measures the actual illuminance conditions in different areas and uses this feedback information to optimize the visible light irradiation pattern, reducing noise in low illuminance areas and preventing saturation in high illuminance areas. This feedback mechanism resolves the contradiction between control simplicity and image quality.
Data Source
AI summary
The present technique relates to an information processing apparatus, an information processing method, a photographing apparatus, a lighting apparatus, and a mobile body which enable accuracy of image recognition processing to be improved.The information processing apparatus includes: a recognizing portion configured to perform image recognition processing with respect to an image photographed by a photographing portion and calculate, for each recognized area being an area based on a recognition result of an object, a reliability of the recognition result; and an irradiation control portion configured to control an irradiation pattern of visible light in a photographing direction of the photographing portion so that the reliability with respect to at least a part of the recognized areas increases. For example, the present technique can be applied to a vehicle control apparatus.