arXiv Computer Vision

SuperClip Pyramid for Video Temporal Grounding

arXiv Computer Vision
Sep 7

Intrinsic Temporal Adaptation of CLIP for Partially Relevant Video Retrieval

The paper introduces Intrinsic Temporal Adaptation (ITA) for Partially Relevant Video Retrieval (PRVR), a task that seeks untrimmed videos containing moments relevant to a text query. ITA employs a Backbone-Internal Temporal Adaptation that lets the final visual transformer layers attend to neighboring frames, creating temporally aware embeddings while keeping CLIP frozen. Additionally, an Affinity-Weighted Gradient Propagation technique softly aggregates top‑k frames based on text‑frame affinities to better handle the weakly supervised nature of PRVR, leading to state‑of‑the‑art performance and more accurate frame‑level evidence retrieval.

By Hyun Seok Seong, Woojin Jun, SuBeen Lee, Jae-Pil Heo
arXiv AI
Jun 4

GenSpan: Generation-Calibrated Motion Span Priors for Multi-Verb Video Corpus Moment Retrieval

arXiv:2603. 22121v2 Announce Type: replace-cross Abstract: Video Corpus Moment Retrieval (VCMR) aims to retrieve both the correct video and its temporal segment corresponding to a natural-language query, a task that is especially challenging for multi-verb queries where temporal action ordering is critical.

By Yunzhuo Sun, Xinyue Liu, Yanyang Li, Nanding Wu, Linlin Zong, Xianchao Zhang, Wenxin Liang
Hugging Face Trending Papers
Sep 2

TAME: Temporal-Aware Mixture-of-Experts for Text-Video Retrieval

TAME introduces a Temporal-Aware Mixture-of-Experts framework for Text-Video Retrieval that enhances CLIP-based models by incorporating frame-level structure and temporal relations. It adds sparse Mixture-of-Experts layers with frame-consistent routing, Frame-Temporal tokens for global cross-frame aggregation, and a Cross-Temporal Interaction and Aggregation module to refine sentence-video similarities. Experiments on multiple TVR benchmarks show consistent performance gains, such as a 4.0 R@1 improvement on MSR‑VTT over CLIP4Clip.

arXiv Computer Vision
Sep 3

TAME: Temporal-Aware Mixture-of-Experts for Text-Video Retrieval

TAME is a CLIP‑based framework for Text‑Video Retrieval that incorporates temporal modeling through three key innovations: sparse Mixture‑of‑Experts layers with frame‑consistent routing, Frame‑Temporal tokens that aggregate cross‑frame information, and a Cross‑Temporal Interaction and Aggregation module for refining frame‑wise similarities. These components enable the model to capture both local visual patterns and long‑range temporal dependencies, leading to consistent performance gains over CLIP‑based baselines on multiple TVR benchmarks, including a 4.0 R@1 improvement on MSR‑VTT. The code is publicly available on GitHub.

By Uicheol Jung, Juyoung Hong, Hojung Kwon, Yukyung Choi
arXiv AI
Oct 16

Where, How, and When: Query-Guided Grounding for Video Understanding

The paper introduces query‑guided grounding methods for video understanding, covering object‑level, relationship‑level, and moment‑level tasks. For object grounding, QDETRv and TOViT enable one‑shot and few‑shot localization of unseen objects using query‑context fusion, memory modules, and language‑aligned vision encoders. Relationship grounding is addressed with a few‑shot referring framework that optimizes a T‑partite random field, while moment grounding is tackled by the Moment Alignment Transformer (MATR), which employs dynamic time warping and self‑supervised pretraining for video‑to‑video and text‑to‑video retrieval.

By Yogesh Kumar
arXiv Computer Vision
Sep 28

EviDETR: Preserving Query-Relevant Temporal Evidence for Moment Retrieval and Highlight Detection

EviDETR is a new framework for joint video moment retrieval and highlight detection that preserves query‑relevant temporal evidence throughout its pipeline. It introduces three key components: Semantic‑aware Feature Reweighting (SFR) to enhance clip representations, a Temporal Top‑2 Mixture‑of‑Experts (TTop2MoE) decoder for query‑adaptive refinement, and MR‑to‑HD (MR2HD) fusion to transfer retrieval evidence to highlight prediction. Using CLIP+SlowFast features, EviDETR achieves state‑of‑the‑art performance on QVHighlights and demonstrates strong cross‑dataset transferability on TACoS and Charades‑STA.

By Haoran Sun, Yufan Li, Qichen Zhang, Haoran Zhao, Shuqi Wang
arXiv Computer Vision
Aug 31

Training-Free Temporal Abstraction for General Video Understanding

The paper introduces STITCH, a training‑free method that partitions videos into semantically meaningful temporal chunks using a frozen video‑text backbone. By detecting changes in the embedding sequence of short video windows, STITCH produces reusable temporal abstractions that can be applied to multiple tasks such as event boundary detection, language‑based moment retrieval, and frame selection for vision‑language models. Experiments show that STITCH performs competitively with specialized methods while requiring no task‑specific training, especially when processing is limited to a few frames or tokens.

By Etienne Casanova, Sevan Brodjian, Pietro Perona