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Ethernet frame illustrating variable-length payload. Jumbo frames have payloads greater than 1500 bytes. In computer networking, jumbo frames are Ethernet frames with more than 1500 bytes of payload, the limit set by the IEEE 802.3 standard. [1] The payload limit for jumbo frames is variable: while 9000 bytes is the most commonly used limit ...
Macroblock. The macroblock is a processing unit in image and video compression formats based on linear block transforms, typically the discrete cosine transform (DCT). A macroblock typically consists of 16×16 samples, and is further subdivided into transform blocks, and may be further subdivided into prediction blocks.
Earth-centered inertial ( ECI) coordinate frames have their origins at the center of mass of Earth and are fixed with respect to the stars. [1] ". I" in "ECI" stands for inertial (i.e. "not accelerating "), in contrast to the "Earth-centered – Earth-fixed" ( ECEF) frames, which remains fixed with respect to Earth's surface in its rotation ...
The Clohessy–Wiltshire equations describe a simplified model of orbital relative motion, in which the target is in a circular orbit, and the chaser spacecraft is in an elliptical or circular orbit. This model gives a first-order approximation of the chaser's motion in a target-centered coordinate system. It is used to plan the rendezvous of ...
Moving object detection is a technique used in computer vision and image processing. Multiple consecutive frames from a video are compared by various methods to determine if any moving object is detected. Moving objects detection has been used for wide range of applications like video surveillance, activity recognition, road condition ...
When tracking planar objects, the motion model is a 2D transformation (affine transformation or homography) of an image of the object (e.g. the initial frame). When the target is a rigid 3D object, the motion model defines its aspect depending on its 3D position and orientation. For video compression, key frames are divided into macroblocks ...
Getty Images (2) Tom Brady is hoping his coparenting relationship with ex-wife Gisele Bündchen will remain positive despite the after-effects of his Netflix roast. “Tom wants to have a good ...
Asynchronous reprojection is a class of computer graphics technologies aimed ensuring a virtual reality headset 's responsiveness to user motion even when the GPU isn't able to keep up with the headset's target frame rate. [1] Reprojection involves the headset's driver taking one or multiple previously rendered frames and using newer motion ...