[quote author="star61" date="1326021180"][quote author="W.E. Price" date="1325999061"]It is slight. Though too much had to be done to compensate for depth perspective and video alignment.
I’m not sure what you mean, but the back rail appears perfectly horizontal, as does the camera rail. If not, you would see random vertical displacement as the one or both rails ‘moved’ up or down along their length. It is almost a perfect perspective. The only improvements might be a closer shot and something to actually gauge what little displacement is occuring.[/quote]
I’m not doubting anyone’s perception of the video. I used Pinnacle, as well as Kinovea, after a video capture (de-interlaced), frame segmented review and spot referencing with the rail and lane line per frame. There were slight vertical changes during the flight path with respect to touchdown and amortization.
Perhaps the magnification, losses in film detail (converted from ?Hz recorded to 29.93 fps), etc. Though I wouldn’t expect this or any other finding to change what one perceives given their own reference method.[/quote]How much displacement are you seeing using your method/equipment/software, and does it change measureably as speed increases, i.e., from the earliest frames to the later frames?