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Ri Cheng

5 accepted papers

2025

Efficient Online Training for Zero-Shot Time-Lapse Microscopy Denoising and Super-Resolution

AAAI 2025technical

In time-lapse microscopy, inherent noise significantly limits imaging sensitivity and increases measurement uncertainty. Due to the scarcity of clean data, zero-shot approaches have emerged as highly data-efficient solutions for microscopy denoising. However, existing methods typically process video…

Cited by 0SourcePDFScholar
2024

Context-Aware Iteration Policy Network for Efficient Optical Flow Estimation

AAAI 2024technical

Existing recurrent optical flow estimation networks are computationally expensive since they use a fixed large number of iterations to update the flow field for each sample. An efficient network should skip iterations when the flow improvement is limited. In this paper, we develop a Context-Aware It…

Cited by 2SourcePDFScholar
2024

Low-Latency Space-Time Supersampling for Real-Time Rendering

AAAI 2024technical

With the rise of real-time rendering and the evolution of display devices, there is a growing demand for post-processing methods that offer high-resolution content in a high frame rate. Existing techniques often suffer from quality and latency issues due to the disjointed treatment of frame supersam…

2024

MGQFormer: Mask-Guided Query-Based Transformer for Image Manipulation Localization

AAAI 2024technical

Deep learning-based models have made great progress in image tampering localization, which aims to distinguish between manipulated and authentic regions. However, these models suffer from inefficient training. This is because they use ground-truth mask labels mainly through the cross-entropy loss, w…

Cited by 11SourcePDFScholar
2022

Learning Robust Image-Based Rendering on Sparse Scene Geometry via Depth Completion

CVPR 2022poster

Recent image-based rendering (IBR) methods usually adopt plenty of views to reconstruct dense scene geometry. However, the number of available views is limited in practice. When only few views are provided, the performance of these methods drops off significantly, as the scene geometry becomes spars…

Cited by 4PDFScholar