Score-based generative modeling in latent space

    公开(公告)号:US12249048B2

    公开(公告)日:2025-03-11

    申请号:US17681625

    申请日:2022-02-25

    Abstract: One embodiment of the present invention sets forth a technique for generating data. The technique includes sampling from a first distribution associated with the score-based generative model to generate a first set of values. The technique also includes performing one or more denoising operations via the score-based generative model to convert the first set of values into a first set of latent variable values associated with a latent space. The technique further includes converting the first set of latent variable values into a generative output.

    CONDITIONAL DIFFUSION MODEL FOR DATA-TO-DATA TRANSLATION

    公开(公告)号:US20240273682A1

    公开(公告)日:2024-08-15

    申请号:US18431527

    申请日:2024-02-02

    CPC classification number: G06T5/60 G06T5/50

    Abstract: Image restoration generally involves recovering a target clean image from a given image having noise, blurring, or other degraded features. Current image restoration solutions typically include a diffusion model that is trained for image restoration by a forward process that progressively diffuses data to noise, and then by learning in a reverse process to generate the data from the noise. However, the forward process relies on Gaussian noise to diffuse the original data, which has little or no structural information corresponding to the original data versus learning from the degraded image itself which is much more structurally informative compared to the random Gaussian noise. Similar problems also exist for other data-to-data translation tasks. The present disclosure trains a data translation conditional diffusion model from diffusion bridge(s) computed between a first version of the data and a second version of the data, which can yield a model that can provide interpretable generation, sampling efficiency, and reduced processing time.

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