G-band chromosome HDR image reconstruction method

Abstract

The invention relates to the technical field of image processing, and discloses a G-band chromosome HDR image reconstruction method, which comprises the training steps of a dequantization network model, a linearization network model and a detail reconstruction network model, and the step of reconstructing an HDR image by using the trained models. According to the method, three neural network models, namely a de-quantization network, a linearization network and a detail reconstruction network, are designed, and a training set is formed by utilizing an actual G-band chromosome HDR image and a corresponding real LDR image, so that the training of the three neural network models is completed; performing three steps of de-quantization, linearization and overexposure region detail reconstructionon a real LDR image by using the trained model, and finally completing a task of G-band chromosome HDR image reconstruction; according to the method, reconstruction of the HDR image is completed onlythrough one LDR image, so that G-banding chromosome characteristics are more obvious, subsequent analysis is facilitated, artifacts do not appear in the reconstructed HDR image, and the quality of the image is higher.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for reconstructing HDR images of G-banded chromosomes. Background technique [0002] The quality of G-banded chromosome images will seriously affect the effect of chromosome G-banded karyotype analysis. Usually, higher-quality G-banded chromosome images can provide more chromosome structure information and texture information, and have more important clinical application value. [0003] In order to obtain a higher-quality G-banded chromosome image, a better-effect preparation method is usually used to prepare a G-banded chromosome sample, and the high-resolution chromosome preparation method is usually better than the low-resolution chromosome preparation method. Obtain more pronounced chromosomal details. With the advancement of digital image technology, digital images of G-banded chromosome samples collected by digital cameras can be processed more convenient...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the disadvantages in the prior art that a single LDR image cannot be used to complete HDR image reconstruction and will cause artifacts, the present invention provides a G-banded chromosome HDR image reconstruction method, which can use a single G-banded chromosome with a low dynamic range Image reconstruction of high dynamic range images, while avoiding the problem of chromosomal artifacts when compositing HDR images

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