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Method for identifying types of response units through camera

A technology of reaction unit and camera, applied in image enhancement, image analysis, image data processing and other directions, can solve the problems of unfavorable application, high cost and high precision, and achieve the effect of simplifying structure and detection requirements, and low requirements for marking color.

Active Publication Date: 2015-01-07
CAPITALBIO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using an instrument to read the detection information, the cost is relatively high due to the high cost of the instrument
When manual identification is used, as the detection throughput increases, it will become more and more time-consuming and laborious
When using barcodes to read detection information, the printing and production of barcodes is very cumbersome, which is not conducive to application; and the reading of barcodes must be realized by distinguishing the boundaries and widths of bar spaces. Moreover, high precision is required, which is not conducive to the application
When there are a variety of different detection indicators on a chip, the traditional method needs to detect the points to be detected in order, so the order of the detection types must be specified before the chip; at the same time, if there is an excessive movement distance when moving the chip Or insufficient, will lead to skip detection, make the detection sequence be disrupted, cause the actual detection type of the reaction unit and the detection type specified in the sequence to not correspond, resulting in major errors in subsequent detection; in addition, with the continuous development of detection requirements, There may also be a need for non-sequential detection

Method used

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  • Method for identifying types of response units through camera
  • Method for identifying types of response units through camera
  • Method for identifying types of response units through camera

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this embodiment, a CMOS camera is used to identify the type of reaction unit 1 on a chip with a color reaction unit, and different numbers of reaction units 1 are distributed on the chip (such as Figure 4 shown), the chip moves in a straight line through the camera detection area (such as Figure 5 (a) ~ (e) shown).

[0032] 1. When the detection starts, start the camera recognition system, initialize the camera and the image processing unit.

[0033] 2. The camera collects the pixel point value of the chip substrate, selects the RGB (red, green, blue) channel, and the image processing unit extracts the color feature mean value from the R channel in the pixel point value, and transmits the color feature mean value to the display unit, and the display unit The display sets the mean value of the background color feature to 100, and sets the mean value of the color feature to 100 as the threshold.

[0034] 3. Print the chip directly above and / or directly below the re...

Embodiment 2

[0037] In this embodiment, a CMOS camera is used to identify the type of the reaction unit 1 on the chip with the color reaction unit. The chip is distributed with different numbers of reaction units 1, and the chip rotates and moves through the detection area of ​​the camera.

[0038] 1. Start the camera recognition system at the beginning of the detection, and initialize the camera and image processing unit.

[0039] 2. The camera collects the pixel point value of the chip substrate, selects the CMYK channel (cyan, magenta, yellow, black), and the image processing unit extracts the color feature mean value from the M channel in the pixel point value, and transmits the color feature mean value to the display unit , the display unit displays that the mean value of the background color feature is set to 50, and the mean value of the color feature 50 is set as a threshold.

[0040] 3. Print the chips above and / or below the reaction unit 1 in three different colors in advance. T...

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Abstract

The invention relates to a method for identifying the types of response units through a camera. The method comprises the following steps that (1) a camera identification system is started, and the camera and an image processing unit are initialized; (2) a camera detection region is divided into a response unit movement locus inside region and a response unit movement locus outside region, and image acquisition regions are arranged in the response unit movement locus outside region; (3) color blocks are prearranged around the response units and located in the response unit movement locus outside region, the area of each color block is larger than that of each image acquisition region in the response unit movement locus outside region, and color feature mean values of the color blocks correspond to the detection types of the response units; (4) the camera acquires pixel values of chip substrates, and color feature mean values are extracted from the pixel values to serve as threshold values and transmitted to a display unit; (5) chips are moved to enter the camera detection region, pixel values in the detection region are photographed in real time, and color feature mean values are extracted from the pixel values in real time and transmitted to the display unit.

Description

technical field [0001] The invention relates to a method for pattern recognition and image processing, in particular to a method for using a camera to identify the type of a reaction unit. Background technique [0002] In recent years, with the continuous development of the economy and society, the demand for various testing has been increasing. At the same time, breakthroughs in material science, processing technology and microelectronics have led to rapid development of chip detection. Among all kinds of detection, chip detection has developed rapidly and is widely used. Chip detection has the advantages of small size, less consumption of samples and reagents, controllable fluid, integration, and fast analysis speed. However, in the process of chip detection, it is necessary to read quickly and accurately and judge the type of detection object in time. [0003] Traditional methods of reading test information include instrument reading, manual identification and barcode ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/00G01J3/46
CPCG06T2207/10016G06T2207/10024G06T2207/30072G06T7/90
Inventor 薛源张冠斌陈铖赵凯军程京
Owner CAPITALBIO CORP