Billion-Pixel Light-Field Imaging With Synchronized Illumination
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Solution Overview
Problem
Existing 3D human body scanning systems face limitations in acquisition resolution, illumination complexity, and synchronization of light sources, leading to inefficiencies and inaccuracies in capturing both overall posture and detailed human body features, especially in handheld scanners where maintaining stillness is challenging.
Innovation Solution
A system and method for variable illumination intelligent imaging using a support structure with integrated light sources and acquisition cameras at multiple angles, synchronized by a control system to capture high-resolution whole and detail images simultaneously, achieving billion-pixel level resolution through controlled illumination and acquisition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a large number of LED lamps are used to improve illumination quality, then the illumination coverage and quality are improved, but the control and synchronization become complex and expensive
Solution Approach 1:
The illumination system is divided into multiple independent LED lamp units, each capable of being controlled individually. This segmentation allows for simplified control architecture where each unit can be managed separately rather than controlling a large number of lamps simultaneously, reducing overall system complexity while maintaining comprehensive illumination coverage.
2Device complexity
If handheld scanner is used to reduce system complexity, then the device portability is improved, but the scanning time increases and it is difficult to ensure the scanned person does not move
Solution Approach 1:
The system employs continuous illumination from multiple LED lamps that remain active throughout the entire scanning process. This continuous lighting ensures that even if the scanned person moves slightly, the acquisition cameras can capture complete information without requiring the person to remain perfectly still, thereby reducing scanning time while maintaining image quality.
3Measurement precision
If acquisition resolution is increased to capture human body details, then the measurement precision is improved, but the ability to capture overall posture is compromised
Solution Approach 1:
The image acquisition system is segmented into multiple acquisition cameras positioned at different locations, with each camera responsible for capturing specific body regions at high resolution. This segmentation allows the system to maintain high measurement precision for body details while collectively capturing the complete overall posture through the combined views from all cameras.
Solution Approach 2:
The system transitions from a single-view acquisition approach to a multi-view three-dimensional acquisition system. By arranging cameras in spatial distribution around the scanning area, the system captures images from multiple dimensions and angles simultaneously, enabling both detailed body feature capture and complete posture documentation without compromising either aspect.
Data Source
AI summary
A system for variable illumination intelligent imaging of a billion pixel light field includes a support, a light source, an acquisition array and a control system. The light source and the acquisition array are mounted on the support. The acquisition array includes whole body acquisition cameras configured to acquire whole images of a human body and detail acquisition cameras configured to acquire area detail images of the human body at a plurality of angles of view. The control system, respectively connected to the light source and the acquisition array, is configured to synchronously control the acquisition array, and control the light source and the acquisition array to synchronously acquire a current human body whole image and a current human body detail image of an acquired person after each illumination environment conversion based on a preset light source illumination mode and a conversion frequency.