High Frame Rate Capture and Production

This paper describes the challenges of capturing at high frame rates (typically 120fps) including issues of lighting, camera movement and shutter angle (exposure time). We report on the results of testing a variety of typical motion sequences (sports, dance, fighting, vehicles) with both camera pans, steady-cam, zooms and locked-off shots. In addition green screen captures have provided insight into matting scenes at high frame rates to determine if there is benefit to using higher frame rates for that application — We discuss how these factors affect the ability to post produce content both in high frame rate (120) as well as lower frame rates (24, 25, 30, 50 and 60). There are a variety of frame rate conversion techniques and we will explain how these techniques work as well as describe the results of using these techniques. — We have explored the ability to control motion blur in a scene by adding synthetic blur to a HFR sequence. The motion blur can be adaptive to the scene content as well as different elements in the scene. Future work and areas of interest will be discussed.

Published

2015-10

Content type

Original Research

Keywords

HFR, Production, Frame Rate Conversion, Shutter Angle, Exposure, Green Screen

DOI

10.5594/M001625

ISBN

978-1-61482-956-0