Background Image Luminance Correction for Multi-Camera LED Capture
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Solution Overview
Problem
Existing image processing systems fail to effectively reduce image quality unevenness in background images captured at different angles or distances from LED displays, leading to luminance inconsistencies.
Innovation Solution
An information processing apparatus that acquires images and background display information, calculates the angle or distance between the display and the image pickup apparatus, and performs image processing to correct luminance values based on this arrangement, using lookup tables or luminance correction values to adjust image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If luminance correction is applied based on angle information from a single image pickup apparatus, then image quality unevenness is reduced for that specific apparatus, but the system cannot handle multiple image pickup apparatuses capturing images simultaneously from different angles
Solution Approach 1:
The patent divides the correction process into separate modules: one for acquiring arrangement information (angle/distance) and another for applying luminance correction. This segmentation allows the system to handle multiple image pickup apparatuses independently by processing each apparatus's data separately while using the same correction framework, thereby achieving both precision for individual apparatuses and versatility for multi-apparatus scenarios.
Solution Approach 2:
The patent uses parameter changes by adjusting luminance values based on calculated arrangement information (angle or distance) between the background display and image pickup apparatus. By dynamically changing the luminance parameter according to the specific geometric parameters of each apparatus, the system achieves precise correction for each apparatus while maintaining the ability to handle multiple apparatuses with different parameters simultaneously.
2Manufacturing precision
If the LED display emission luminance is changed to correct image quality unevenness, then luminance consistency is improved, but the original display characteristics and emission properties are altered
Solution Approach 1:
The patent introduces image processing as an intermediary between the LED display and the captured image. Instead of changing the display's emission luminance directly, the system processes the captured image data to correct luminance inconsistencies. This intermediary approach allows luminance correction without altering the display's physical emission properties, maintaining stability while achieving consistency.
Solution Approach 2:
The patent inverts the conventional approach by not correcting the display output but rather correcting the captured image data. Instead of adjusting the LED display emission to achieve uniform luminance, the system adjusts the image data after capture, effectively reversing the correction direction while achieving the same luminance consistency goal without affecting display stability.
Data Source
AI summary
An information processing apparatus includes one or more memories storing instructions, and one or more processors that, upon execution of the instructions, operate to acquire an input image obtained by capturing an image of an object and a background image displayed on a background display using an image pickup apparatus, acquire arrangement information on at least one of an angle or a distance between the background display and the image pickup apparatus, and perform image processing on a background image area in the input image according to the arrangement information.