Search Results for author: Tuomas Kynkäänniemi

Found 4 papers, 4 papers with code

Applying Guidance in a Limited Interval Improves Sample and Distribution Quality in Diffusion Models

1 code implementation11 Apr 2024 Tuomas Kynkäänniemi, Miika Aittala, Tero Karras, Samuli Laine, Timo Aila, Jaakko Lehtinen

We show that guidance is clearly harmful toward the beginning of the chain (high noise levels), largely unnecessary toward the end (low noise levels), and only beneficial in the middle.

Disentangling Random and Cyclic Effects in Time-Lapse Sequences

1 code implementation4 Jul 2022 Erik Härkönen, Miika Aittala, Tuomas Kynkäänniemi, Samuli Laine, Timo Aila, Jaakko Lehtinen

We introduce the problem of disentangling time-lapse sequences in a way that allows separate, after-the-fact control of overall trends, cyclic effects, and random effects in the images, and describe a technique based on data-driven generative models that achieves this goal.

The Role of ImageNet Classes in Fréchet Inception Distance

1 code implementation11 Mar 2022 Tuomas Kynkäänniemi, Tero Karras, Miika Aittala, Timo Aila, Jaakko Lehtinen

Fr\'echet Inception Distance (FID) is the primary metric for ranking models in data-driven generative modeling.

Improved Precision and Recall Metric for Assessing Generative Models

9 code implementations NeurIPS 2019 Tuomas Kynkäänniemi, Tero Karras, Samuli Laine, Jaakko Lehtinen, Timo Aila

The ability to automatically estimate the quality and coverage of the samples produced by a generative model is a vital requirement for driving algorithm research.

Image Generation

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