2016/05/12 by Anna Khoreva, Khoreva, Anna, Rodrigo Benenson +7 · 1 citation
Computer Science · #Visual Attention and Saliency Detection #Advanced Image and Video Retrieval Techniques #Medical Image Segmentation Techniques
paper · pdf · doi:10.48550/arxiv.1605.03718
Graph-based video segmentation methods rely on superpixels as starting point. While most previous work has focused on the construction of the graph edges and weights as well as solving the graph partitioning problem, this paper focuses on better superpixels for video segmentation. We demonstrate by a comparative analysis that superpixels extracted from boundaries perform best, and show that boundary estimation can be significantly improved via image and time domain cues. With superpixels generated from our better boundaries we observe consistent improvement for two video segmentation methods in two different datasets.