Based on the object's apparent motion
and the lack of an infrared detection by NASA's Spitzer Space Telescope, they argue that the object is a short-lived dust cloud unrelated to any planet.
Optic flow is the C apparent motion
of the landscape relative to the insect as it flies through it.
Optical flow (Horn and Schunck, 1981) is an estimation of the apparent motion
(velocity) of objects within an image sequence.
The greater the apparent motion
, the nearer the star.
The cube itself, depending on the viewer's position in relation to it, may appear planar or volumetric, and seems to shift from stasis to apparent motion
Our results showed that intermediate representation was not formed by mental rotation in depth rotation (the flipping strategy), however, Kourtzi and Shiffrar (1997, 1999a, 1999b) showed that the intermediate representation was formed by the apparent motion
of rotation in depth and plane.
This apparent motion
of the sky varies depending on where you are on the Earth--so latitude, or where you live is important.
The cell filters out images of objects approaching its compound eye from other visual stimuli such as the apparent motion
caused by eye movements.
One sees, fixed in space, a horizontal array of lights blinking on and off in sequence (from right to left) giving an impression of apparent motion
, or phi, with the entire array being displaced to the right, in the direction of the attendant saccade.
In the case of ISAR imaging, the apparent motion
of the object w.