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La Flamme Rouge

@laflammerouge16

Cycling routes editor. For send race material contact: [email protected]

Chat: https://t.co/yxcJ8xS2h0

calendar_today12-03-2016 21:50:59

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La Flamme Rouge(@laflammerouge16) 's Twitter Profile Photo

Rotating the image and stretching the pixels you get a pattern (pic 1). Adding the photo finish behind it gives a perfect match (pic 2). This is the exact spot which the finish camera captured.

Rotating the image and stretching the pixels you get a pattern (pic 1). Adding the photo finish behind it gives a perfect match (pic 2). This is the exact spot which the finish camera captured.
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La Flamme Rouge(@laflammerouge16) 's Twitter Profile Photo

Can we use the video camera on the finish to estimate the distance to the line? Roughly yes, as the finish line centers well in the image.

Can we use the video camera on the finish to estimate the distance to the line? Roughly yes, as the finish line centers well in the image.
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La Flamme Rouge(@laflammerouge16) 's Twitter Profile Photo

As the finish line didn't fully cover the road, we drew the finish line trough to the barriers and use it to roughly estimate the gap between the finish line and the photo finish

The finish is 96 pixels modelled at the barrier, the gap between the two lines is 71 pixels.

As the finish line didn't fully cover the road, we drew the finish line trough to the barriers and use it to roughly estimate the gap between the finish line and the photo finish The finish is 96 pixels modelled at the barrier, the gap between the two lines is 71 pixels.
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La Flamme Rouge(@laflammerouge16) 's Twitter Profile Photo

71 / 96 * 100 = 74% of the line width is the offset from the photo finish spot.

As defined in the UCI regulations, the width of the line should be 34cm.

75% of ~34cm is an offset of ~25cm.

71 / 96 * 100 = 74% of the line width is the offset from the photo finish spot. As defined in the UCI regulations, the width of the line should be 34cm. 75% of ~34cm is an offset of ~25cm.
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La Flamme Rouge(@laflammerouge16) 's Twitter Profile Photo

Finally, using the same percentage again on the other side of the road to create a point to which you can draw a straight line, you can get a good estimation of the photo finish line coloured green:

Finally, using the same percentage again on the other side of the road to create a point to which you can draw a straight line, you can get a good estimation of the photo finish line coloured green:
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La Flamme Rouge(@laflammerouge16) 's Twitter Profile Photo

.Nobuo Ozaki has also completely modelled the finish with the shot by using the width of the finish line (34cm + 4cm + 34cm). The results are almost identical: 240mm

.@Maeda_I_W has also completely modelled the finish with the shot by using the width of the finish line (34cm + 4cm + 34cm). The results are almost identical: 240mm
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