Report of the 8th LSVOS Challenge: Complex and Multimodal Video Object Segmentation

• URL: http://arxiv.org/abs/2609.06078v1
• Date: Sat, 05 Sep 2026 13:11:38 GMT
• Title: Report of the 8th LSVOS Challenge: Complex and Multimodal Video Object Segmentation
• Abstract summary: This report summarizes the 8th Large-scale Video Object (LSVOS) Challenge, held in conjunction with ECCV 2026.<n>The challenge evaluates video segmentation in three complementary settings: complex semi-supervised video object segmentation on MOSEv2, text-guided referring video object segmentation on MeViSv2-Text, and audio-guided referring video object segmentation on MeViSv2-Audio.
• Score: 123.08518673784818
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: This report summarizes the 8th Large-scale Video Object Segmentation (LSVOS) Challenge, held in conjunction with ECCV 2026. The challenge evaluates video segmentation in three complementary settings: complex semi-supervised video object segmentation on MOSEv2, text-guided referring video object segmentation on MeViSv2-Text, and audio-guided referring video object segmentation on MeViSv2-Audio. We describe the tasks and evaluation protocols and review the methods of the top three teams in each track. Across the nine leading solutions, foundation segmentation models are combined with target-aware memory, multimodal reasoning, explicit target-existence verification, agentic interaction, and corrective tracking. These systems illustrate a broader transition from single-model mask propagation toward modular pipelines that reason about object identity, query validity, and temporal reliability.

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