5 results about "Urine test strip" patented technology

1. Name of the designed product: urine analyzer. 2. Use of the designed product: urine chemical test and analysis with urine test strip. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

This invention relates to a urine test strip color recognition detection method based on image analysis, comprising the following steps: Step 1, acquiring a color image; Step 2, detecting black calibration blocks at the four corners; Step 3, geometric correction of the test strip area based on four-point perspective transformation; Step 4, adaptive extraction of the effective area of ​​the test strip; Step 5, precise segmentation of color blocks; Step 6, correction of uneven illumination and color standardization; Step 7, multidimensional similarity calculation based on weighted Lab color space; Step 8, outputting the detection results and marking abnormalities. The beneficial effects of this invention are: the positioning accuracy remains ≥99.8% even in complex scenarios, far exceeding existing template matching and QR code solutions; it is completely unaffected by test strip deformation or printing offset; the CV value of the same urine sample repeated under different mobile phones and different lighting conditions is <3%; it successfully solves the problems of batch-to-batch color difference and test strip aging, with a clinical concordance rate ≥98%; the entire algorithm has a small computational load, fully meeting the needs of real-time detection.

1. Name of the design product: urine analyzer main machine. 2. Use of the design product: used for analyzing urine test strips soaked in urine and analyzing the composition of urine. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

A method for conducting a urinalysis is provided. The method includes receiving an image of a urine strip having a plurality of reacting areas configured to react with a predetermined urine parameter, and a plurality of reference regions each having a designated color; extracting, from each reference region, reference values representative of a detected color in the reference region; extracting, from each reacting area, color values representative of a detected color of the reacting area; conducting a regression analysis by determining least-squares of the reference values in accordance with prestored set of values corresponding to expected colors of each reference region; determining a color correction model by calculating root polynomial expansion of the least-squares; applying the color correction model on the color values by calculating root polynomial expansion of the color values to obtain normalized values; and determine level of the urine parameters in accordance with normalized values.

1. Name of the product in this design: Urine catheter holder for a urine analyzer. 2. Purpose of this design: To guide urine onto a urine test strip. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.