Depth from motion is an interesting psychological phenomenon. Our mind helps interpret what we are seeing based on information from the object and its background. We use knowledge such as geometry to determine a shape and depth. When we see the whole object we are able to determine depth but we also have the aperture problem. THis is when we are only give a small window to view only parts of an object. The motion becomes ambigous and we are not able to determine depth nor the direction of the motion.
depth perception is an interesting topic. the image appears to be moving in a circular pattern because that is what our brain would expects as the most logical direction of motion.
This video describes second order motion, which is motion defined by changes in texture or contrast and not luminance. We perceive motion because of the movement of the white and black squares. Because they're continuously crossing each other, it looks as if they're moving in a circle. Sometimes it even looks like the direction of the movement changes. I think that just depends on exactly how you're looking at the squares. This demonstration is really interesting because you know that what you're seeing is not actually a circle moving but it still looks like it.
Depth from motion is an interesting psychological phenomenon. Our mind helps interpret what we are seeing based on information from the object and its background. We use knowledge such as geometry to determine a shape and depth. When we see the whole object we are able to determine depth but we also have the aperture problem. THis is when we are only give a small window to view only parts of an object. The motion becomes ambigous and we are not able to determine depth nor the direction of the motion.
depth perception is an interesting topic. the image appears to be moving in a circular pattern because that is what our brain would expects as the most logical direction of motion.
This video describes second order motion, which is motion defined by changes in texture or contrast and not luminance. We perceive motion because of the movement of the white and black squares. Because they're continuously crossing each other, it looks as if they're moving in a circle. Sometimes it even looks like the direction of the movement changes. I think that just depends on exactly how you're looking at the squares. This demonstration is really interesting because you know that what you're seeing is not actually a circle moving but it still looks like it.