Research Areas

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Medical Image Processing (Fundus, Bone)

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Medical Imaging refers to handling medical images by using the computer. It is mainly applied to various applications such as diagnosis and analysis using computer vision and machine learning technology. Medical images are good for research because they have been accumulated for a long time and are relatively refined. It is very different from ordinary photographs and requires collaboration with doctors for accurate analysis. Our research has developed a bone age prediction program using x-ray images. We are also working on a macular image transformation system using fundus images. The fundus image can observe symptoms of systemic diseases such as diabetes and high blood pressure. Moreover, the examination is relatively easy since diagnosis is possible with only one fundus image. Our research is to restore the image around the macula from an ultra-wide-angle fundus photograph to the existing fundus photograph taken through mydriasis examination by exploiting deep learning technologies such as Generative Adversarial Networks (GAN). If a desired level of macular image can be obtained, it is expected that diagnosis will be possible with only wide-angle fundus photographs without mydriasis examination that makes the patients uncomfortable. Another research is to predict developmental status from bone age diagnosis. We study a deep feature fusion based on contrast enhancement and superpixels for bone age diagnosis. The key idea is that the area containing information on bone ages in X-ray images is limited, and features extracted from low contrast X-ray images can lead to poor final bone age diagnostic performance. The deep feature fusion based on contrast enhancement and superpixel method is expected to improve the accuracy of bone age diagnosis. Our research is not limited to this, we aim to develop various techniques of creating visual representations of the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues.