RT-DETRv2 Explained in 8 Illustrations

Fuente: arXiv
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Main Authors: Chua, Ethan Qi Yang, Tan, Jen Hong
Format: Preprint
Published: 2025
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author Chua, Ethan Qi Yang
Tan, Jen Hong
author_facet Chua, Ethan Qi Yang
Tan, Jen Hong
contents Object detection architectures are notoriously difficult to understand, often more so than large language models. While RT-DETRv2 represents an important advance in real-time detection, most existing diagrams do little to clarify how its components actually work and fit together. In this article, we explain the architecture of RT-DETRv2 through a series of eight carefully designed illustrations, moving from the overall pipeline down to critical components such as the encoder, decoder, and multi-scale deformable attention. Our goal is to make the existing one genuinely understandable. By visualizing the flow of tensors and unpacking the logic behind each module, we hope to provide researchers and practitioners with a clearer mental model of how RT-DETRv2 works under the hood.
format Preprint
id arxiv_https___arxiv_org_abs_2509_01241
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle RT-DETRv2 Explained in 8 Illustrations
Chua, Ethan Qi Yang
Tan, Jen Hong
Computer Vision and Pattern Recognition
Artificial Intelligence
Object detection architectures are notoriously difficult to understand, often more so than large language models. While RT-DETRv2 represents an important advance in real-time detection, most existing diagrams do little to clarify how its components actually work and fit together. In this article, we explain the architecture of RT-DETRv2 through a series of eight carefully designed illustrations, moving from the overall pipeline down to critical components such as the encoder, decoder, and multi-scale deformable attention. Our goal is to make the existing one genuinely understandable. By visualizing the flow of tensors and unpacking the logic behind each module, we hope to provide researchers and practitioners with a clearer mental model of how RT-DETRv2 works under the hood.
title RT-DETRv2 Explained in 8 Illustrations
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2509.01241