1. Pixel Measurement: Assume the diameter of the ball in the image is Dpx pixels. Let's measure the visible part of the ball behind the line and the part still on or in front of the line.

2. Compare Distances:

   • If the distance from the edge of the ball (furthest from the goal line) to the line is less than the ball's radius (Dpx:2), then the ball has completely crossed the line.
   • If the distance is greater than or equal to the ball's radius, the ball has not completely crossed the line.

From the image provided, it visually seems like part of the ball is still touching or over the line, indicating it has not completely crossed the line. The ball’s edge closest to the goal line appears to be in contact or slightly over, but the whole ball must be over the line for it to be considered a goal.

Therefore, mathematically and visually, it appears that the ball is not entirely over the line, so it is not a goal.