Invention Grant
- Patent Title: Dental image synthesis using generative adversarial networks with semantic activation blocks
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Application No.: US17033277Application Date: 2020-09-25
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Publication No.: US11367188B2Publication Date: 2022-06-21
- Inventor: Vasant Kearney , Hamid Hekmatian , Stephen Chan , Ali Sadat
- Applicant: Retrace Labs
- Applicant Address: US CA San Francisco
- Assignee: Retrace Labs
- Current Assignee: Retrace Labs
- Current Assignee Address: US CA San Francisco
- Agency: Stevens Law Group
- Agent David R. Stevens
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T7/00 ; G06T7/73 ; G06T3/40 ; G06N20/10 ; G06N3/04 ; G06N3/08

Abstract:
A GAN is trained to process input images and produce a synthetic dental image. The GAN further takes masks as inputs with each image, the masks labeling pixels of the image corresponding to dental features (anatomy and/or treatments). The GAN includes an encoder-decoder with normalization between stages of the decoder according to the masks. A synthetic image and an unpaired dental image is evaluated by a first discriminator of the GAN to obtain a realism estimate. The synthetic image and an unpaired dental image may be processed using a pretrained dental encoder to obtain a perceptual loss. The GAN is trained with the realism estimate and perceptual loss. Utilization may include modifying a mask for an input image to include or exclude a shape of a feature such that the synthetic image includes or excludes a dental feature.
Public/Granted literature
- US20210118129A1 Dental Image Synthesis using Generative Adversarial Networks with Semantic Activation Blocks Public/Granted day:2021-04-22
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