Search Results for author: Siying Liu

Found 12 papers, 8 papers with code

Enhanced Event-Based Video Reconstruction with Motion Compensation

no code implementations18 Mar 2024 Siying Liu, Pier Luigi Dragotti

To address this, we propose warping the input intensity frames and sparse codes to enhance reconstruction quality.

Event-Based Video Reconstruction Motion Compensation +1

WiMANS: A Benchmark Dataset for WiFi-based Multi-user Activity Sensing

1 code implementation24 Jan 2024 Shuokang Huang, Kaihan Li, Di You, Yichong Chen, Arvin Lin, Siying Liu, Xiaohui Li, Julie A. McCann

WiFi-based human sensing has exhibited remarkable potential to analyze user behaviors in a non-intrusive and device-free manner, benefiting applications as diverse as smart homes and healthcare.

Activity Recognition

First-spike coding promotes accurate and efficient spiking neural networks for discrete events with rich temporal structures

1 code implementation Frontiers in Neuroscience 2023 Siying Liu, Vincent C. H. Leung, Pier Luigi Dragotti

In the backpropagation, we develop an error assignment method that propagates error from FS times to spikes through a Gaussian window, and then supervised learning for spikes is implemented through a surrogate gradient approach.

Decision Making

Sensing Diversity and Sparsity Models for Event Generation and Video Reconstruction from Events

1 code implementation IEEE Transactions on Pattern Analysis and Machine Intelligence 2023 Siying Liu, Pier Luigi Dragotti

In this paper, we propose a light, simple model-based deep network for E2V reconstruction, explore the diversity for adjacent pixels in V2E generation, and finally build a video-to-events-to-video (V2E2V) architecture to validate how alternative event generation strategies improve video reconstruction.

Event-based vision Video Reconstruction

Distance Based Image Classification: A solution to generative classification's conundrum?

1 code implementation4 Oct 2022 Wen-Yan Lin, Siying Liu, Bing Tian Dai, Hongdong Li

We use the model to develop a classification scheme which suppresses the impact of noise while preserving semantic cues.

Image Classification

Shell Theory: A Statistical Model of Reality

1 code implementation IEEE Transactions on Pattern Analysis and Machine Intelligence 2021 Wen-Yan Lin, Siying Liu, Changhao Ren, Ngai-Man Cheung, Hongdong Li, Yasuyuki Matsushita

The foundational assumption of machine learning is that the data under consideration is separable into classes; while intuitively reasonable, separability constraints have proven remarkably difficult to formulate mathematically.

Anomaly Detection BIG-bench Machine Learning +6

Dual-SLAM: A framework for robust single camera navigation

no code implementations23 Sep 2020 Huajian Huang, Wen-Yan Lin, Siying Liu, Dong Zhang, Sai-Kit Yeung

As local pose estimation is ill-conditioned, local pose estimation failures happen regularly, making the overall SLAM system brittle.

Pose Estimation Simultaneous Localization and Mapping

PatchMatch-Based Automatic Lattice Detection for Near-Regular Textures

no code implementations ICCV 2015 Siying Liu, Tian-Tsong Ng, Kalyan Sunkavalli, Minh N. Do, Eli Shechtman, Nathan Carr

In this work, we investigate the problem of automatically inferring the lattice structure of near-regular textures (NRT) in real-world images.

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