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Logitech Cordless TrackMan Wheel trackball mose The original version of the Kensington Expert Mouse can use a standard American pool ball as a trackball. [citation needed]A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down ball mouse with an exposed protruding ball. [1]
An optical trackpad is an input device based on an optical sensor, which detects the displacement of a finger that is moving on top of it. [1] The sensor is used typically in smartphones , where it replaces the D-pad , and in ultra-portable or ultra-mobile PCs , where it replaces touchpads , pointing sticks or trackballs as pointing device .
IntelliMouse Explorer 3.0 Microsoft IntelliMouse with IntelliEye optical sensor mouse. IntelliMouse is a series of computer mice from Microsoft.The IntelliMouse series is credited with a number of innovations; [1] Microsoft was among the first mouse vendors to introduce a scroll wheel, [2] an optical mouse, and dedicated auxiliary buttons on the side of the mouse.
Optical pointing sticks are also used on some Ultrabook tablet hybrids, such as the Sony Duo 11, ThinkPad Tablet and Samsung Ativ Q. On the Gateway 2000 Liberty laptop the pointing stick is above the enter key on the right side of the keyboard. A pointing stick was featured in the New Nintendo 3DS as a secondary analog stick, known as the C-Stick.
The problem with using eye tracking in usability testing is the required hardware and then expense. Additionally, eye tracking is limited to small sample sizes and abnormal browsing environments. Mouse tracking, on the other hand, is inexpensive and the data can be collected from any computer.
The BlackBerry Pearl 8100 was the first BlackBerry without a trackwheel, which was replaced by a miniature trackball to enable full 4-way and mouse-style navigation on a BlackBerry. The look of the new trackball gave the "Pearl" its name. The 9000 series was launched in 2008.
Digital image correlation and tracking is an optical method that employs tracking and image registration techniques for accurate 2D and 3D measurements of changes in images. This method is often used to measure full-field displacement and strains , and it is widely applied in many areas of science and engineering.
The Logitech Trackman Marble used optical tracking and was released in 1996 — around 3 years earlier. Laurence Gonsalves 16:50, 1 June 2016 (UTC) Providing some context for this. Logitech invented the marble using a camera to track the movement of dots printed on a ball, and patented it. Microsoft subsequently introduced optical mice based on ...