Biochip Scanning via 3D Surface Plane Determination
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Solution Overview
Problem
High-density biochips require excessive scanning time due to the need to focus on each panel accurately, and misalignment, such as rotation, results in incomplete fluorescent images, making current scanning methods tedious and inefficient.
Innovation Solution
A method involving the measurement of three-dimensional locations on the biochip surface to determine a virtual approximation plane or curved surface, allowing for precise determination of imaging locations and extraction of overall data from individual panel images, without altering the scanner device structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sequential scanning of individual panels is performed to obtain accurate fluorescent images, then image quality is improved, but scanning time increases excessively
Solution Approach 1:
The patent measures three-dimensional locations of target marks on the biochip surface in advance to determine a virtual approximation plane or curved surface. This preliminary action allows the system to pre-calculate imaging locations for all panels, eliminating the need for time-consuming sequential focusing during the actual scanning process, thus resolving the contradiction between image quality and scanning time
Solution Approach 2:
The patent introduces a third dimension (Z-axis) by measuring three-dimensional locations of target marks to determine the spatial orientation of the biochip surface. By establishing a virtual approximation plane or curved surface in 3D space, the system can calculate precise imaging locations for multiple panels simultaneously, enabling parallel processing that reduces scanning time while maintaining image quality
2Reliability
If the biochip is rotated to correct misalignment, then image completeness is improved, but operational complexity increases
Solution Approach 1:
The patent replaces the mechanical approach of physically rotating the biochip with a computational solution. By measuring the three-dimensional locations of target marks and calculating the rotation angle mathematically, the system determines the correct imaging locations through software processing rather than mechanical manipulation, thus improving image completeness while reducing operational complexity
Solution Approach 2:
The patent creates a virtual model (virtual approximation plane or curved surface) that represents the actual biochip surface geometry. This virtual copy allows the system to simulate and correct for rotations and misalignments through computational geometry calculations, avoiding the need for physical biochip manipulation while ensuring complete image capture
Data Source
AI summary
An apparatus for scanning a biometric device includes a camera that scans the biometric device to generate images, and a computer that extracts data from the images. The computer measures three-dimensional locations of at least three different positions on a surface of the biometric device, determines a virtual approximation plane or a curved surface with respect to the surface of the biometric device based on the measured three-dimensional locations, determines imaging locations of two or more panels disposed on the biometric device based on the virtual approximation plane or the curved surface, obtains individual images of the two or more panels by scanning the biometric device based on the determined imaging locations, and extracts overall data of the biometric device from the individual images of the two or more panels.