Identifying broadcast graphic issues
I'm exploring how auto-generated lines may vary in graphics and calibration, which relies on the "kick point" and defenders' positioning. Errors can crop up from various factors like wrong frame selection, occlusion, and misalignment in broadcasts. For instance, with Udinese, offside lines may not display correctly. We should suggest ways to evaluate the situation like checking angle releases. Also, I can offer to review clips or images if shared, and it's good to consider official VAR audio if available.Explaining VAR and offside judgments
I'm thinking about Serie A's "Open VAR" show and how we should keep things concise with bullet points. I want to ask for details like the match date, round, minute, and scorer, along with any screenshots. It’s important to clarify why VAR lines might look incorrect and explain how SAOT functions—like how TV graphics can be illustrative. I can mention past errors but emphasize that they're rare. I’ll also put forth how offside is judged and offer to analyze any images they share for clarity.Creating a clear explanation request
I want to ask if I can get the match information or a screenshot so I can break it down frame-by-frame. I'll outline key points to explain, including touch frame selection, valid body parts, the second-last defender, differences between SAOT and manual lines, and the goalkeeper's position. It’s worth noting that Serie A may use manual lines when tracking fails, which could introduce a 10-20 cm uncertainty. I need to be careful not to fabricate details and keep it general enough to guide self-checks effectively.
看到了。要判断这球是不是“划线有问题”，需要更具体的信息。能否提供：
- 比赛信息（两队/轮次/时间段）或进球分钟
- 一张/一段你看到的画面（越位线截图/视频片段）
如果你先想听一个快速判定框架，下面这些点最容易造成“看着不对/线画错”的错觉或误判：
- 触球帧选取：越位判定以队友“首次触球瞬间”为准，若冻结在稍晚一帧，进攻方看起来就会更靠前。
- 有效身体部位：手臂不算越位，肩膀顶端算；有时电视图把线对在胸口/手臂位置，观感会偏差。 
- 第二倒数防守队员：不一定是门将；若门将前提，真正起判定作用的是场上“倒数第二名防守方球员”。
- SAOT vs 电视图：意甲多数场次用半自动越位(SAOT)的3D骨架与校准，电视播出用的是简化的可视化，角度/厚度与真实判定并非一一对应。
- 追溯新阶段：若有对手“有控制的故意触球”，可以刷新越位判断阶段；若只是折射/解围失败，不会刷新。
- 遮挡/跟踪失败：人群遮挡导致关键点丢失时，可能退回到手动或2D线辅助，误差会比SAOT大，争议更多。
你可以这样自检一遍你那球的画面：
- 定位触球帧：放慢到逐帧，找“球刚刚离脚”的第一帧。
- 标出可判身体部位：进攻者最靠前的可判部位 vs 防守方第二倒数球员最靠后的可判部位。
- 看门将站位：确认是不是门将+另一名防守者构成“第二倒数”。
- 对比电视越位线：若线对在非可判部位或触球帧滞后，电视图可能误导。
如果你把截图/视频发来，我可以：
- 标注触球帧和可判部位 
- 给出是否可能是SAOT/手动画线
- 解释为何电视“看着越位/不越位”却判相反
另外，意甲每周有“Apertura VAR/Open VAR”节目会公开关键判罚的画面与VAR对话记录。如果你提供比赛轮次，我也可以帮你找该段说明并做要点解读。