Mass image processing apparatus and method

A mass image processing apparatus comprising:

• a pre-processor configured to apply a pre-process to an original mass image produced through mass spectrometry of a sample, to produce a model input image;
• a converter that has an image quality conversion model produced through machine learning based on a group of images produced through sample analysis different from the mass spectrometry, and is configured to produce a model output image through image quality conversion of the model input image;
• and
• a post-processor configured to apply a post-process to the model output image, to produce a mass image after image quality conversion, wherein
• the pre-process is a process to fit the model input image with respect to an input condition of the converter, and
• the post-process is a process to fit the mass image after the image quality conversion with respect to a mass image output condition, wherein
• the input condition of the converter comprises a first intensity condition and a first image size condition,
• the mass image output condition comprises a second intensity condition and a second image size condition,
• the pre-process comprises input-side intensity scaling to fit an intensity distribution of the original mass image with respect to the first intensity condition, and an input-side image manipulation to produce the model input image comprising an entirety or a part of the original mass image such that the first image size condition is satisfied, and
• the post-process comprises output-side intensity scaling to fit an intensity distribution of the model output image with respect to the second intensity condition, and an output-side image manipulation to produce the mass image after the image quality conversion including an entirety or a part of the model output image such that the second image size condition is satisfied.

A method of processing a mass image, the method comprising:

• producing an original mass image of a sample based on a plurality of ionic strengths extracted from a plurality of mass spectra obtained from the sample;
• applying a pre-process to the original mass image produced through mass spectrometry of the sample, to produce a model input image;
• producing a model output image from the model input image using an image quality conversion model for improving an image quality of the original mass image of the sample, the image quality conversion model produced through machine learning based on a group of images produced through sample analysis different from the mass spectrometry;
• and
• applying a post-process to the model output image, to produce a mass image after image quality conversion, wherein
• the pre-process is a process to fit the model input image with respect to an input condition of the image quality conversion model, and
• the post-process is a process to fit the mass image after the image quality conversion with respect to a mass image output condition.

A non-transitory computer-readable storage medium storing a program which, when executed, causes an information processing apparatus to execute a mass image process, the mass image process comprising:

• producing an original mass image of a sample based on a plurality of ionic strengths extracted from a plurality of mass spectra obtained from the sample;
• applying a pre-process to the original mass image produced through mass spectrometry of the sample, to produce a model input image;
• producing a model output image from the model input image using an image quality conversion model for improving an image quality of the original mass image of the sample, the image quality conversion model produced through machine learning based on a group of images produced through sample analysis different from the mass spectrometry;
• and
• applying a post-process to the model output image, to produce a mass image after image quality conversion, wherein
• the pre-process is a process to fit the model input image with respect to an input condition of the image quality conversion model, and
• the post-process is a process to fit the mass image after the image quality conversion with respect to a mass image output condition.