271 citations · 1.3k across the 60 of their papers we have counts for
5 papers · 1 filter
Blind Image Deblurring via Reweighted Graph Total Variation
Yuanchao Bai, Gene Cheung, Xianming Liu +1
Blind image deblurring, i.e., deblurring without knowledge of the blur kernel, is a highly ill-posed problem. The problem can be solved in two parts: i) estimate a blur kernel from…
Joint Denoising / Compression of Image Contours via Shape Prior and Context Tree
Amin Zheng, Gene Cheung, Dinei Florencio
With the advent of depth sensing technologies, the extraction of object contours in images---a common and important pre-processing step for later higher-level computer vision tasks…
Graph-based Joint Signal / Power Restoration for Energy Harvesting Wireless Sensor Networks
Megumi Kaneko, Gene Cheung, Weng-tai Su +1
The design of energy and spectrally efficient Wireless Sensor Networks (WSN) is crucial to support the upcoming expansion of IoT/M2M mobile data traffic. In this work, we consider…
Multi-Stream Switching for Interactive Virtual Reality Video Streaming
Gene Cheung, Zhi Liu, Zhiyou Ma +1
Virtual reality (VR) video provides an immersive 360 viewing experience to a user wearing a head-mounted display: as the user rotates his head, correspondingly different fields-of-…
Graph Fourier Transform with Negative Edges for Depth Image Coding
Weng-Tai Su, Gene Cheung, Chia-Wen Lin
Recent advent in graph signal processing (GSP) has led to the development of new graph-based transforms and wavelets for image / video coding, where the underlying graph describes…