Search Results for author: Jianjun Shi

Found 11 papers, 1 papers with code

RGI: robust GAN-inversion for mask-free image inpainting and unsupervised pixel-wise anomaly detection

no code implementations24 Feb 2023 Shancong Mou, Xiaoyi Gu, Meng Cao, Haoping Bai, Ping Huang, Jiulong Shan, Jianjun Shi

In this paper, we propose a Robust GAN-inversion (RGI) method with a provable robustness guarantee to achieve image restoration under unknown \textit{gross} corruptions, where a small fraction of pixels are completely corrupted.

Anomaly Detection Image Inpainting +1

PAEDID: Patch Autoencoder Based Deep Image Decomposition For Pixel-level Defective Region Segmentation

no code implementations28 Mar 2022 Shancong Mou, Meng Cao, Haoping Bai, Ping Huang, Jianjun Shi, Jiulong Shan

To combine the best of both worlds, we present an unsupervised patch autoencoder based deep image decomposition (PAEDID) method for defective region segmentation.

Anomaly Detection

Synthetic Defect Generation for Display Front-of-Screen Quality Inspection: A Survey

no code implementations3 Mar 2022 Shancong Mou, Meng Cao, Zhendong Hong, Ping Huang, Jiulong Shan, Jianjun Shi

Display front-of-screen (FOS) quality inspection is essential for the mass production of displays in the manufacturing process.

Synthetic Data Generation

ANTLER: Bayesian Nonlinear Tensor Learning and Modeler for Unstructured, Varying-Size Point Cloud Data

no code implementations25 Feb 2022 Michael Biehler, Hao Yan, Jianjun Shi

Unstructured point clouds with varying sizes are increasingly acquired in a variety of environments through laser triangulation or Light Detection and Ranging (LiDAR).

Dimensionality Reduction Quantization +1

Compressed Smooth Sparse Decomposition

no code implementations19 Jan 2022 Shancong Mou, Jianjun Shi

The proposed method, named Compressed Smooth Sparse Decomposition (CSSD), is a one-step method that unifies the compressive image acquisition and decomposition-based image processing techniques.

Anomaly Detection

Additive Tensor Decomposition Considering Structural Data Information

1 code implementation27 Jul 2020 Shancong Mou, Andi Wang, Chuck Zhang, Jianjun Shi

In this paper, we provide a new definition of structural information in tensor data.

Tensor Decomposition

Active Learning for Gaussian Process Considering Uncertainties with Application to Shape Control of Composite Fuselage

no code implementations23 Apr 2020 Xiaowei Yue, Yuchen Wen, Jeffrey H. Hunt, Jianjun Shi

In the machine learning domain, active learning is an iterative data selection algorithm for maximizing information acquisition and improving model performance with limited training samples.

Active Learning regression

AKM$^2$D : An Adaptive Framework for Online Sensing and Anomaly Quantification

no code implementations4 Oct 2019 Hao Yan, Kamran Paynabar, Jianjun Shi

In point-based sensing systems such as coordinate measuring machines (CMM) and laser ultrasonics where complete sensing is impractical due to the high sensing time and cost, adaptive sensing through a systematic exploration is vital for online inspection and anomaly quantification.

Anomaly Detection

Multiple profiles sensor-based monitoring and anomaly detection

no code implementations JOURNAL OF QUALITY TECHNOLOGY 2018 Chen Zhang, Hao Yan, Seungho Lee, Jianjun Shi

However, there are several challenges in developing an effective process monitoring system: (i) data streams generated by multiple sensors are high-dimensional profiles; (ii) sensor signals are affected by noise due to system-inherent variations; (iii) signals of different sensors have cluster-wise features; and (iv) an anomaly may cause only sparse changes of sensor signals.

Anomaly Detection

Dynamic Multivariate Functional Data Modeling via Sparse Subspace Learning

no code implementations11 Apr 2018 Chen Zhang, Hao Yan, Seungho Lee, Jianjun Shi

Multivariate functional data from a complex system are naturally high-dimensional and have complex cross-correlation structure.

regression

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