Search Results for author: Zhengqin Xu

Found 7 papers, 1 papers with code

Vision-Informed Flow Image Super-Resolution with Quaternion Spatial Modeling and Dynamic Flow Convolution

no code implementations29 Jan 2024 Qinglong Cao, Zhengqin Xu, Chao Ma, Xiaokang Yang, Yuntian Chen

To tackle this dilemma, we comprehensively consider the flow visual properties, including the unique flow imaging principle and morphological information, and propose the first flow visual property-informed FISR algorithm.

Image Super-Resolution

Domain Prompt Learning with Quaternion Networks

no code implementations12 Dec 2023 Qinglong Cao, Zhengqin Xu, Yuntian Chen, Chao Ma, Xiaokang Yang

Specifically, the proposed method involves using domain-specific vision features from domain-specific foundation models to guide the transformation of generalized contextual embeddings from the language branch into a specialized space within the quaternion networks.

Contrastive Learning

Parameter Efficient Fine-tuning via Cross Block Orchestration for Segment Anything Model

no code implementations28 Nov 2023 Zelin Peng, Zhengqin Xu, Zhilin Zeng, Lingxi Xie, Qi Tian, Wei Shen

Parameter-efficient fine-tuning (PEFT) is an effective methodology to unleash the potential of large foundation models in novel scenarios with limited training data.

Image Classification Image Segmentation +2

Domain-Controlled Prompt Learning

1 code implementation30 Sep 2023 Qinglong Cao, Zhengqin Xu, Yuntian Chen, Chao Ma, Xiaokang Yang

Existing prompt learning methods often lack domain-awareness or domain-transfer mechanisms, leading to suboptimal performance due to the misinterpretation of specific images in natural image patterns.

SAM-PARSER: Fine-tuning SAM Efficiently by Parameter Space Reconstruction

no code implementations28 Aug 2023 Zelin Peng, Zhengqin Xu, Zhilin Zeng, Xiaokang Yang, Wei Shen

Most existing fine-tuning methods attempt to bridge the gaps among different scenarios by introducing a set of new parameters to modify SAM's original parameter space.

Segmentation Semantic Segmentation

Efficient Robust Principal Component Analysis via Block Krylov Iteration and CUR Decomposition

no code implementations CVPR 2023 Shun Fang, Zhengqin Xu, Shiqian Wu, Shoulie Xie

Specifically, the Krylov iteration method is employed to approximate the eigenvalue decomposition in the rank estimation, which requires O(ndrq + n(rq)^2) for an (nxd) input matrix, in which q is a parameter with a small value, r is the target rank.

Adaptive Rank Estimate in Robust Principal Component Analysis

no code implementations CVPR 2021 Zhengqin Xu, Rui He, Shoulie Xie, Shiqian Wu

In this paper, an adaptive rank estimate based RPCA (ARE-RPCA) is proposed, which adaptively assigns weights on different singular values via rank estimation.

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