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Figure 1 from Automatic letter/pillarbox detection for optimized display of digital TV | Semantic Scholar
Pillarbox - Wikipedia
What you need to know about Aspect Ratios and Letterboxing
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Various Aspect Ratios on 16:9 (1.78) : r/imax
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1 Metadata for Formatting with Multiple Aspect Ratios Graham Jones National Association of Broadcasters Chair – SMPTE S22 Image Formatting AHG HPA Technology. - ppt download
Definition of pillarbox | PCMag
Understanding Aspect Ratios. What is an aspect ratio? Have you ever wondered why some things you watch on television have black bars around the picture? - ppt download
What Does the Letterboxing and Pillarboxing Effect Mean with Movie Screens & Projectors? - Outdoor Movie Projectors
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Pillarbox
Pillarbox - Wikipedia
Aspect Ratio 4x3 16x9 4:3 16:9 Letterbox Pillarbox Pan Scan - YouTube
Question: When Can Your Video Become a Postage Stamp ? - Chet Davis - Your Technology Tutor
Figure 2 from Automatic letter/pillarbox detection for optimized display of digital TV | Semantic Scholar
Video Aspect Ratio Explained | Fine Line Production
What you need to know about Aspect Ratios and Letterboxing
