Search Results for author: Jose Lezama

Found 5 papers, 2 papers with code

MaskSketch: Unpaired Structure-guided Masked Image Generation

2 code implementations CVPR 2023 Dina Bashkirova, Jose Lezama, Kihyuk Sohn, Kate Saenko, Irfan Essa

We show that intermediate self-attention maps of a masked generative transformer encode important structural information of the input image, such as scene layout and object shape, and we propose a novel sampling method based on this observation to enable structure-guided generation.

Conditional Image Generation Diversity +3

Muse: Text-To-Image Generation via Masked Generative Transformers

5 code implementations2 Jan 2023 Huiwen Chang, Han Zhang, Jarred Barber, AJ Maschinot, Jose Lezama, Lu Jiang, Ming-Hsuan Yang, Kevin Murphy, William T. Freeman, Michael Rubinstein, Yuanzhen Li, Dilip Krishnan

Compared to pixel-space diffusion models, such as Imagen and DALL-E 2, Muse is significantly more efficient due to the use of discrete tokens and requiring fewer sampling iterations; compared to autoregressive models, such as Parti, Muse is more efficient due to the use of parallel decoding.

 Ranked #1 on Text-to-Image Generation on MS-COCO (FID metric)

Language Modelling Large Language Model +1

ForestHash: Semantic Hashing With Shallow Random Forests and Tiny Convolutional Networks

no code implementations ECCV 2018 Qiang Qiu, Jose Lezama, Alex Bronstein, Guillermo Sapiro

In this paper, we introduce a random forest semantic hashing scheme that embeds tiny convolutional neural networks (CNN) into shallow random forests, with near-optimal information-theoretic code aggregation among trees.

General Classification Image Classification +2

Not Afraid of the Dark: NIR-VIS Face Recognition via Cross-spectral Hallucination and Low-rank Embedding

no code implementations CVPR 2017 Jose Lezama, Qiang Qiu, Guillermo Sapiro

We observe that it is often equally effective to perform hallucination to input NIR images or low-rank embedding to output deep features for a VIS deep model for cross-spectral recognition.

Deep Learning Face Recognition +1

Finding Vanishing Points via Point Alignments in Image Primal and Dual Domains

no code implementations CVPR 2014 Jose Lezama, Rafael Grompone von Gioi, Gregory Randall, Jean-Michel Morel

We present a novel method for automatic vanishing point detection based on primal and dual point alignment detection.

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