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xiaolin wei

18 accepted papers

2023

Bridging Search Region Interaction With Template for RGB-T Tracking

CVPR 2023poster

RGB-T tracking aims to leverage the mutual enhancement and complement ability of RGB and TIR modalities for improving the tracking process in various scenarios, where cross-modal interaction is the key component. Some previous methods concatenate the RGB and TIR search region features directly to pe…

2023

Enriching Phrases with Coupled Pixel and Object Contexts for Panoptic Narrative Grounding

IJCAI 2023poster

Panoptic narrative grounding (PNG) aims to segment things and stuff objects in an image described by noun phrases of a narrative caption. As a multimodal task, an essential aspect of PNG is the visual-linguistic interaction between image and caption. The previous two-stage method aggregates visual c…

Cited by 5SourcePDFScholar
2023

Masked Auto-Encoders Meet Generative Adversarial Networks and Beyond

CVPR 2023poster

Masked Auto-Encoder (MAE) pretraining methods randomly mask image patches and then train a vision Transformer to reconstruct the original pixels based on the unmasked patches. While they demonstrates impressive performance for downstream vision tasks, it generally requires a large amount of training…

Cited by 20SourcePDFScholar
2023

Uncertainty-Aware Image Captioning

AAAI 2023technical

It is well believed that the higher uncertainty in a word of the caption, the more inter-correlated context information is required to determine it. However, current image captioning methods usually consider the generation of all words in a sentence sequentially and equally. In this paper, we propos…

Cited by 19SourcePDFScholar
2022

Adaptive Spatial-BCE Loss for Weakly Supervised Semantic Segmentation

ECCV 2022poster

"For Weakly-Supervised Semantic Segmentation (WSSS) with image-level annotation, mostly relies on the classification network to generate initial segmentation pseudo-labels. However, the optimization target of classification networks usually neglects the discrimination between different pixels, like…

2022

Expansion and Shrinkage of Localization for Weakly-Supervised Semantic Segmentation

NeurIPS 2022accept

Generating precise class-aware pseudo ground-truths, a.k.a, class activation maps (CAMs), is essential for Weakly-Supervised Semantic Segmentation. The original CAM method usually produces incomplete and inaccurate localization maps. To tackle with this issue, this paper proposes an Expansion and Sh…

2022

Fully Convolutional One-Stage 3D Object Detection on LiDAR Range Images

NeurIPS 2022accept

We present a simple yet effective fully convolutional one-stage 3D object detector for LiDAR point clouds of autonomous driving scenes, termed FCOS-LiDAR. Unlike the dominant methods that use the bird-eye view (BEV), our proposed detector detects objects from the range view (RV, a.k.a. range image)…

Cited by 130SourcePDFScholar
2022

PromptDet: Towards Open-Vocabulary Detection Using Uncurated Images

ECCV 2022poster

"The goal of this work is to establish a scalable pipeline for expanding an object detector towards novel/unseen categories, using zero manual annotations. To achieve that, we make the following four contributions: (i) in pursuit of generalisation, we propose a two-stage open-vocabulary object detec…

2022

Rethinking the Optimization of Average Precision: Only Penalizing Negative Instances before Positive Ones Is Enough

AAAI 2022technical

Optimising the approximation of Average Precision (AP) has been widely studied for image retrieval. Limited by the definition of AP, such methods consider both negative and positive instances ranking before each positive instance. However, we claim that only penalizing negative instances before posi…

2022

SegViT: Semantic Segmentation with Plain Vision Transformers

NeurIPS 2022accept

We explore the capability of plain Vision Transformers (ViTs) for semantic segmentation and propose the SegViT. Previous ViT-based segmentation networks usually learn a pixel-level representation from the output of the ViT. Differently, we make use of the fundamental component—attention mechanism, t…

2021

DARTS-: Robustly Stepping out of Performance Collapse Without Indicators

ICLR 2021poster

Despite the fast development of differentiable architecture search (DARTS), it suffers from a standing instability issue regarding searching performance, which extremely limits its application. Existing robustifying methods draw clues from the outcome instead of finding out the causing factor. Vario…

2021

Embedded Discriminative Attention Mechanism for Weakly Supervised Semantic Segmentation

CVPR 2021poster

Weakly Supervised Semantic Segmentation (WSSS) with image-level annotation uses class activation maps from the classifier as pseudo-labels for semantic segmentation. However, such activation maps usually highlight the local discriminative regions rather than the whole object, which deviates from the…

Cited by 178PDFcodeScholar
2021

Rethinking BiSeNet for Real-Time Semantic Segmentation

CVPR 2021poster

BiSeNet has been proved to be a popular two-stream network for real-time segmentation. However, its principle of adding an extra path to encode spatial information is time-consuming, and the backbones borrowed from pretrained tasks, e.g., image classification, may be inefficient for image segmentati…

Cited by 814PDFcodeScholar
2021

Trash To Treasure: Harvesting OOD Data With Cross-Modal Matching for Open-Set Semi-Supervised Learning

ICCV 2021poster

Open-set semi-supervised learning (open-set SSL) investigates a challenging but practical scenario where out-of-distribution (OOD) samples are contained in the unlabeled data. While the mainstream technique seeks to completely filter out the OOD samples for semi-supervised learning (SSL), we propose…

Cited by 76PDFScholar
2021

Twins: Revisiting the Design of Spatial Attention in Vision Transformers

NeurIPS 2021poster

Very recently, a variety of vision transformer architectures for dense prediction tasks have been proposed and they show that the design of spatial attention is critical to their success in these tasks. In this work, we revisit the design of the spatial attention and demonstrate that a carefully dev…