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Xinyan Liu

6 accepted papers

2026

Foresee-to-Ground: From Predictive Temporal Perception to Evidence-Driven Reasoning for Video Temporal Grounding

ICML 2026poster

Current Video-LLM approaches for Video Temporal Grounding (VTG) typically rely on direct timestamp generation from an unstructured visual-token stream, often resulting in brittle numerics and inconsistent boundaries. To address this, we propose Foresee-to-Ground (F2G), a framework that enforces a ve…

Cited by 0SourceScholar
2026

PTNET: A PROPOSAL-CENTRIC TRANSFORMER NET- WORK FOR 3D OBJECT DETECTION

ICLR 2026poster

3D object detection from LiDAR point cloud data is important for autonomous driving systems. Recent two-stage 3D object detectors struggle to achieve satisfactory performance due to limitations in proposal quality, stemming from the degradation of geometric detail information in the generated propos…

Cited by 0SourceScholar
2026

VLHSA: Vision-Language Hierarchical Semantic Alignment for Jigsaw Puzzle Solving with Eroded Gaps (Student Abstract)

AAAI 2026technical

Jigsaw puzzle solving remains difficult because models must reconcile local fragment cues with global structure. Most prior work leans solely on visual signals (edge or texture coherence) and rarely exploits natural-language descriptions, which are especially helpful for puzzles with eroded gaps. We

Cited by 0SourcePDFScholar
2024

Weakly Supervised Video Individual Counting

CVPR 2024poster

Video Individual Counting (VIC) aims to predict the number of unique individuals in a single video. Existing methods learn representations based on trajectory labels for individuals which are annotation-expensive. To provide a more realistic reflection of the underlying practical challenge we introd…

2021

Exploiting Sample Correlation for Crowd Counting With Multi-Expert Network

ICCV 2021poster

Crowd counting is a difficult task because of the diversity of scenes. Most of the existing crowd counting methods adopt complex structures with massive backbones to enhance the generalization ability. Unfortunately, the performance of existing methods on large-scale data sets is not satisfactory. I…

Cited by 38PDFScholar