For anyone interested in how the animated GIF's were created... (Click to show)
On a Windows PC I used Alt-PrtScn to get screen grabs from a video player and then pasted into a new file in MS Paint. Next I selected just the video area, (to get rid of the app window, controls, etc), and copied and pasted that into a new file to create the basis for each image file. Using simple MS Paint tools added the small rectangle and numbering top left to make it easier to identify each individual image. Used a free online (web-based) program to upload the set of a dozen files, set the playback timing, etc, and crank out an animated GIF.
Once I had the sets of images for 1985 and 2015 I thought it would be good to combine them in an animated GIF in a splitscreen, but I couldn't find a GIF generator that offered that capability, so I went back into MS Paint and created an image that had a larger background (canvas) than would be needed for two stacked images. Then in another instance of MS Paint I opened 2015 image file 1, hit Ctrl-A (Select All), Copy (to get on clipboard, then went over to the first MS Paint (with the big canvas) and hit Paste. That put the image file in the top left of what would ultimately be the new combined image.
Next went back to second MS Paint and opened 1985 image file 1, and repeated the steps above, only rather than leaving the newly copied image topleft I dragged it carefully so it lined up just under the 2015 image. I actually had to drag-resize the width after doing that because I didn't make the original image files for both sets the same size. If I ever do this again I'll just make sure the video player window is sized the same when I make the original frame grabs to avoid that.
At that point I used the MS Paint select tool to outline just the combined image (2015 and 1985 stacked images sitting on the larger background), and copied and pasted that into a new image file. Went through all that process above to create a set of 12 combined images, then used that set with the online animated GIF creator to crank out the final product.
Labor intensive, and perhaps there's an automated way to do the same thing in a more robust application like PhotoShop, but all in all not too bad, free, and the result seems adequate.
Originally Posted by jc-ski
I got to thinking about the Sybervision tape again after watching the recent JF Beaulieu / Reilly McGlashan / Paul Lorenz Collaboration video. They both feature superb skiers making short and longer turns, and I was pondering what was similar and what was different about the skiing separated by 30 years.
That ^^^ was my original motivation. I went in with some ideas about what I thought might be going on, but not with an agenda to arrive at a preconceived result. I found a section of the 1985 video that clearly showed the skier's body and skis in a couple of turns, and decided to made a set of grabs that roughly follow this pattern...
Image 01 In fall line
Image 02 Bottom half right turn begins
Image 03 Bottom half right turn tightens
Image 04 Release begins
Image 05 Transition-Neutral
Image 06 Top half left turn begins
Image 07 In fall line
Image 08 Bottom half left turn begins
Image 09 Bottom half left turn tightens
Image 10 Release begins
Image 11 Transition-Neutral
Image 12 Top half right turn begins
Then I searched for a section of the 2015 video that would give me a couple of turns from roughly the same viewpoint, and repeated the process to grab frames for another image set.
My preconceived ideas were that with the 1985 skier the focus was on working the front of the ski, both to steer it around and pressure it after transition, whereas 2015 seemed more to flatten at transition and then tip to edge, working more of the whole ski. It would be interesting to have a side view of the same turns for both, but unfortunately don't have that available to compare.
From the front view using the image sets and especially the combined animated GIF the conclusion I draw is that the skiing is remarkably similar, the biggest differences being that the 1985 skier works in a more pronounced manner from outside ski to outside ski, and does not get and stay as low as the 2015 skier.
Otherwise to my eye they both transition to the new turn by flexing/relaxing the old outside ski, and allowing pressure to smoothly build on the new outside ski. 1985 doesn't step heavy onto the new outside ski, and there is no pronounced up (body) move. 2015 works hard to keep both skis on the snow at all times with a continuously low stance and heavy flexing/retraction, but there is still a pressure move from outside ski to outside ski.
How do you see things?
Edited by jc-ski - 11/6/15 at 12:41pm