Multi-Sensor Layout for Patient Setup With Wider Field Coverage
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Solution Overview
Problem
Current commercially available combined sensor arrangements for patient setup in medical imaging and treatment systems are not optimized for specific applications, leading to suboptimal sensor data and inefficient workflow support.
Innovation Solution
A sensor arrangement comprising multiple sensors with non-1 aspect ratios, arranged along their short axis, optimized for patient setup, enabling improved field of view and data integration, with a control unit for mapping and synchronization to a virtual camera.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sensors are arranged in a conventional ceiling-mounted configuration, then the system provides a reasonable compromise for generic applications, but the sensor arrangement is not optimized for specific patient setup workflows and suffers from data deficits
Solution Approach 1:
The sensor arrangement is segmented into multiple sensors with different field of view characteristics (different aspect ratios) positioned at various locations. Each sensor captures specific spatial regions, and their data is combined to form a complete view, eliminating data deficits while maintaining application-specific optimization for patient setup workflows
Solution Approach 2:
The patent introduces dimensional diversity by arranging sensors with different aspect ratios (1:1, 4:3, 16:9) in a multi-dimensional configuration rather than a single plane. This spatial arrangement in multiple dimensions allows each sensor to capture unique spatial information, collectively providing comprehensive coverage without data losses
2Device complexity
If a single sensor type is used, then the device complexity is reduced, but the integral sensing capability is insufficient for comprehensive patient setup guidance
Solution Approach 1:
The patent merges multiple sensor types with different field of view aspect ratios into a unified sensor arrangement. By combining sensors with 1:1, 4:3, and 16:9 aspect ratios, the system achieves comprehensive sensing capability that exceeds what any single sensor type could provide, while the merging process integrates them into a coordinated system
3Area of stationary object
If sensors are arranged to maximize field of view coverage, then the integral sensing capability is improved, but the data integration and synchronization complexity increases
Solution Approach 1:
The patent introduces a control unit as an intermediary that receives data from multiple sensors with different field of view aspects and performs coordinate transformations, synchronization, and integration. This intermediary component manages the complexity of data integration while enabling the sensors to achieve maximum field of view coverage
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
The present invention relates to a sensor arrangement for patient setup guidance to be embedded in a medical imaging or treatment system, the sensor arrangement comprising a plurality of sensors, wherein at least a first sensor of the plurality of sensors comprises a field of view of the first sensor having an aspect ratio unequal to 1, thus comprising a first axis of the field of view of the first sensor and a second axis of the field of view of the first sensor, wherein the field of view of the first sensor is larger in the direction of the first axis than in the direction of the second axis, and wherein the plurality of sensors are arranged along a line parallel to the direction of the second axis of the field of view of the first sensor.