arXiv Computer Vision By Zixian Gao, Lixin Xiu, Penghao Luo, Xiangcheng Cao, Ziqi Cai, Zhen Li, Erwin Wu, Kaipeng Zhang

DirCast: Live Esports Directing and Commentary with a Single Streaming Video-Language Model

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arXiv Computation and Language
Aug 21

StreamSoccer: Event-Driven Memory for Streaming Soccer Commentary

arXiv:2608. 19723v1 Announce Type: cross Abstract: Streaming video understanding requires models to causally update state as video arrives and organize growing history into semantic units that can evolve, persist, and be recalled under bounded computation and memory.

By Chenxi Shao, Bozhong Wang, Jiaxin Huang, Zhao Liu, Sunwei Zhu, Tianxin Hang, Gaoqi He, Yang Li, Changbo Wang
arXiv AI
Oct 31

Can Event Detectors Leave the Broadcast Camera? Evidence from Tennis

The paper introduces a new benchmark of 345 annotated tennis ball bounces and racket hits across eight video clips featuring diverse viewpoints, including broadcast, fixed elevated, phone, and court-level angles. It evaluates several event detection methods—supervised spotters, zero-shot vision-language models, and a parameter-free arbitration layer called RallyArb—showing that supervised models perform well on broadcast footage but poorly on non-broadcast views, while RallyArb maintains high bounce detection across all viewpoints but struggles with precise hit timing. The dataset, evaluation tools, and frozen predictions are publicly released to support further research.

By David Soeiro-Vuong, Andre-Louis Rochet