Search Results for author: Zenglin Shi

Found 14 papers, 8 papers with code

Counting with Focus for Free

1 code implementation ICCV 2019 Zenglin Shi, Pascal Mettes, Cees G. M. Snoek

To assist both the density estimation and the focus from segmentation, we also introduce an improved kernel size estimator for the point annotations.

Density Estimation

Robust Regression via Deep Negative Correlation Learning

no code implementations24 Aug 2019 Le Zhang, Zenglin Shi, Ming-Ming Cheng, Yun Liu, Jia-Wang Bian, Joey Tianyi Zhou, Guoyan Zheng, Zeng Zeng

Nonlinear regression has been extensively employed in many computer vision problems (e. g., crowd counting, age estimation, affective computing).

Age Estimation Crowd Counting +2

Ordered or Orderless: A Revisit for Video based Person Re-Identification

no code implementations24 Dec 2019 Le Zhang, Zenglin Shi, Joey Tianyi Zhou, Ming-Ming Cheng, Yun Liu, Jia-Wang Bian, Zeng Zeng, Chunhua Shen

Specifically, with a diagnostic analysis, we show that the recurrent structure may not be effective to learn temporal dependencies than what we expected and implicitly yields an orderless representation.

Video-Based Person Re-Identification

Unsharp Mask Guided Filtering

1 code implementation2 Jun 2021 Zenglin Shi, Yunlu Chen, Efstratios Gavves, Pascal Mettes, Cees G. M. Snoek

The state-of-the-art leverages deep networks to estimate the two core coefficients of the guided filter.

Denoising

On Measuring and Controlling the Spectral Bias of the Deep Image Prior

1 code implementation2 Jul 2021 Zenglin Shi, Pascal Mettes, Subhransu Maji, Cees G. M. Snoek

The deep image prior showed that a randomly initialized network with a suitable architecture can be trained to solve inverse imaging problems by simply optimizing it's parameters to reconstruct a single degraded image.

Denoising Super-Resolution

Frequency-Supervised MR-to-CT Image Synthesis

1 code implementation19 Jul 2021 Zenglin Shi, Pascal Mettes, Guoyan Zheng, Cees Snoek

In this paper, we find that all existing approaches share a common limitation: reconstruction breaks down in and around the high-frequency parts of CT images.

Computed Tomography (CT) Image Generation +1

Social Fabric: Tubelet Compositions for Video Relation Detection

1 code implementation ICCV 2021 Shuo Chen, Zenglin Shi, Pascal Mettes, Cees G. M. Snoek

We also propose Social Fabric: an encoding that represents a pair of object tubelets as a composition of interaction primitives.

Object Relation +2

Reason from Context with Self-supervised Learning

no code implementations23 Nov 2022 Xiao Liu, Ankur Sikarwar, Gabriel Kreiman, Zenglin Shi, Mengmi Zhang

To better accommodate the object-centric nature of current downstream tasks such as object recognition and detection, various methods have been proposed to suppress contextual biases or disentangle objects from contexts.

Object Object Recognition +2

Focus for Free in Density-Based Counting

no code implementations8 Jun 2023 Zenglin Shi, Pascal Mettes, Cees G. M. Snoek

Where density-based counting methods typically use the point annotations only to create Gaussian-density maps, which act as the supervision signal, the starting point of this work is that point annotations have counting potential beyond density map generation.

Training-free Object Counting with Prompts

1 code implementation30 Jun 2023 Zenglin Shi, Ying Sun, Mengmi Zhang

However, the vanilla mask generation method of SAM lacks class-specific information in the masks, resulting in inferior counting accuracy.

Object Segmentation +2

DualMatch: Robust Semi-Supervised Learning with Dual-Level Interaction

1 code implementation25 Oct 2023 Cong Wang, Xiaofeng Cao, Lanzhe Guo2, Zenglin Shi

In this paper, we propose a novel SSL method called DualMatch, in which the class prediction jointly invokes feature embedding in a dual-level interaction manner.

Data Augmentation

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