Chinthaka Dinesh

2 accepted papers

2022

Linear-Time Sampling on Signed Graphs Via Gershgorin Disc Perfect Alignment

Chinthaka Dinesh, Saghar Bagheri, Gene Cheung, Ivan V. Bajic

ICASSP 2022accepted

In graph signal processing (GSP), an appropriate underlying graph encodes pairwise (anti-)correlations of targeted discrete signals as edge weights. However, existing fast graph sampling schemes are designed and tested for positive graphs describing only positive correlations. In this paper, we show…

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2020

Super-Resolution of 3D Color Point Clouds Via Fast Graph Total Variation

Chinthaka Dinesh, Gene Cheung, Ivan V. Bajic

ICASSP 2020accepted

3D point clouds acquired by low-cost sensors are often in lower spatial resolutions than desired for rendering images on high-resolution displays. In this paper, we propose a fast super-resolution (SR) algorithm for color 3D point clouds. We first populate a target low-res point cloud with added int…

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