Video QA | Telecine/pulldown artefact check

Telecine and pulldown are processes used to convert film, typically shot at 24 frames per second (fps), to video formats that run at higher frame rates, such as 30 fps or 60 fps — this is called a standard's conversion. This conversion can introduce artefacts that affect video quality.

Telecine/pulldown artefact check setting in Advalidation

Advalidation's Telecine/pulldown artefact check can help identify two main types of artefacts that can occur during this type of standard's conversion:

1. Duplicate Frames: These occur when certain frames are repeated to match the higher frame rate, which can cause the video to appear jerky or to "judder."
2. Interlaced Frames: These occur when frames are split into alternating lines, leading to "combing" effects where parts of the image appear staggered or out of sync.

Important Notes

• Indicative, Not Conclusive: The artefact check provides an indication of potential issues but is not definitive.
• Visual Verification: It is crucial to visually inspect the video yourself, looking for judder (stuttering motion) or combing (interlaced lines) artefacts. This manual review ensures that any subtle issues not detected by the automated check are caught and addressed.

Advalidation's recommendation

The Telecine/Pulldown Artefact Check in Advalidation helps identify potential quality issues in video ads resulting from frame rate conversion. While the tool provides a useful initial check, always perform a visual review to ensure the highest quality for your video content.