Dense Slides: RAG Evaluation Is Broken! Here's Why (And How to Fix It) - Yuval Belfer and Niv Granot

Source Video

RAG Evaluation Is Broken! Here's Why (And How to Fix It) - Yuval Belfer and Niv Granot

Method

This deck is slide-only. The existing captured video frame set supplies candidate frames, then local OpenCV rejects sponsor/title/speaker-only frames, crops visible slide surfaces, deduplicates, and saves the cropped slide images.

Cropped Visible Slides

• Source scene image: frame-00004.jpg
• Crop: visible-slide-crop [0, 37, 960, 503] score 171.56
• Slide-only rule: visual-bright-slide

• Source scene image: frame-00007.jpg
• Crop: visible-slide-crop [0, 37, 960, 503] score 175.13
• Slide-only rule: visual-bright-slide

• Source scene image: frame-00012.jpg
• Crop: visible-slide-crop [0, 37, 960, 503] score 175.96
• Slide-only rule: visual-bright-slide

• Source scene image: frame-00014.jpg
• Crop: visible-slide-crop [0, 37, 960, 503] score 175.65
• Slide-only rule: visual-bright-slide

• Source scene image: frame-00015.jpg
• Crop: visible-slide-crop [0, 37, 960, 503] score 173.18
• Slide-only rule: visual-bright-slide

• Source scene image: frame-00018.jpg
• Crop: visible-slide-crop [0, 37, 960, 503] score 174.65
• Slide-only rule: visual-bright-slide

• Source scene image: frame-00020.jpg
• Crop: visible-slide-crop [0, 37, 960, 503] score 172.88
• Slide-only rule: visual-bright-slide