Search Results for author: Qizhu Li

Found 5 papers, 4 papers with code

UperFormer: A Multi-scale Transformer-based Decoder for Semantic Segmentation

1 code implementation25 Nov 2022 Jing Xu, Wentao Shi, Pan Gao, Zhengwei Wang, Qizhu Li

On the more challenging ADE20K dataset, our best model yields a single-scale mIoU of 50. 18, and a multi-scale mIoU of 51. 8, which is on-par with the current state-of-art model, while we drastically cut the number of FLOPs by 53. 5%.

Object Localization Segmentation +1

Unifying Training and Inference for Panoptic Segmentation

no code implementations CVPR 2020 Qizhu Li, Xiaojuan Qi, Philip H. S. Torr

This panoptic submodule gives rise to a novel propagation mechanism for panoptic logits and enables the network to output a coherent panoptic segmentation map for both "stuff" and "thing" classes, without any post-processing.

Panoptic Segmentation Segmentation

Adversarial Metric Attack and Defense for Person Re-identification

1 code implementation30 Jan 2019 Song Bai, Yingwei Li, Yuyin Zhou, Qizhu Li, Philip H. S. Torr

However, our work observes the extreme vulnerability of existing distance metrics to adversarial examples, generated by simply adding human-imperceptible perturbations to person images.

Adversarial Attack Benchmarking +2

Weakly- and Semi-Supervised Panoptic Segmentation

1 code implementation ECCV 2018 Qizhu Li, Anurag Arnab, Philip H. S. Torr

We present a weakly supervised model that jointly performs both semantic- and instance-segmentation -- a particularly relevant problem given the substantial cost of obtaining pixel-perfect annotation for these tasks.

Instance Segmentation Panoptic Segmentation +4

Holistic, Instance-Level Human Parsing

1 code implementation11 Sep 2017 Qizhu Li, Anurag Arnab, Philip H. S. Torr

We address this problem by segmenting the parts of objects at an instance-level, such that each pixel in the image is assigned a part label, as well as the identity of the object it belongs to.

Human Detection Multi-Human Parsing +2

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