Nuclear magnetic resonance hydrogen spectrogram retrieval method of two data formats

• Main Authors: YANG XI, ZHOU YANGE, ZHU HEGUI
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a nuclear magnetic resonance hydrogen spectrogram retrieval method with two data formats. The method comprises the following steps: step 1, judging whether input data is image format data or txt file format data; 2, if the input data is txt file format data, converting the txt file format data into an image format, and then executing the step 3; if the input data is the image format data, directly executing the step 3; 3, preprocessing the image format data to obtain a peak graph; 4, performing feature extraction on the peak image to obtain an initial feature matrix, and adjusting the initial feature matrix according to a peak group spacing threshold to obtain a final input data feature matrix; and 5, respectively calculating distances between the input data characteristic matrix and all sample data characteristic matrixes in the database, and carrying out ascending sorting according to the distances to obtain spectrograms of the first five positions and substance names corresponding t