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PIFu: Pixel-Aligned Implicit Function for High-Resolution Clothed Human Digitization

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Saito, Shunsuke, Huang, Zeng, Natsume, Ryota, Morishima, Shigeo, Li, Hao, Kanazawa, Angjoo·2019·2019 IEEE/CVF International Conference on Computer Vision (ICCV)

Abstract

We introduce Pixel-aligned Implicit Function (PIFu), an implicit representation that locally aligns pixels of 2D images with the global context of their corresponding 3D object. Using PIFu, we propose an end-to-end deep learning method for digitizing highly detailed clothed humans that can infer both 3D surface and texture from a single image, and optionally, multiple input images. Highly intricate shapes, such as hairstyles, clothing, as well as their variations and deformations can be digitized in a unified way. Compared to existing representations used for 3D deep learning, PIFu produces high-resolution surfaces including largely unseen regions such as the back of a person. In particular, it is memory efficient unlike the voxel representation, can handle arbitrary topology, and the resulting surface is spatially aligned with the input image. Furthermore, while previous techniques are designed to process either a single image or multiple views, PIFu extends naturally to arbitrary number of views. We demonstrate high-resolution and robust reconstructions on real world images from the DeepFashion dataset, which contains a variety of challenging clothing types. Our method achieves state-of-the-art performance on a public benchmark and outperforms the prior work for clothed human digitization from a single image.

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Metadata

Authors
Saito, S., Huang, Z., Natsume, R., Morishima, S., Li, H., & Kanazawa, A.
Venue
2019 IEEE/CVF International Conference on Computer Vision (ICCV)
Publisher
IEEE
Published
2019-10
Pages
2304-2314
OpenAlex
W2981978060
Cited by
1,228
References
7
FWCI
165.18
Type
conference paper
Language
en
Open access
green

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CoChat. (2026). Citation check: PIFu: Pixel-Aligned Implicit Function for High-Resolution Clothed Human Digitization. https://app.cochat.ai/papers/10.1109/iccv.2019.00239
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Saito, S., Huang, Z., Natsume, R., Morishima, S., Li, H., & Kanazawa, A. (2019). PIFu: Pixel-Aligned Implicit Function for High-Resolution Clothed Human Digitization. 2019 IEEE/CVF International Conference on Computer Vision (ICCV). https://doi.org/10.1109/iccv.2019.00239

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