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Motiongram
A motiongram is a spatiotemporal display of motion, created from a video recording. Motiongrams are created using a video processing technique, in which a motion image is collapsed into a series of 1 pixel wide stripes and plotted next to one another. Challenge The traditional way of representing (human) motion visually, is either by displaying individual frames from a video file as a keyframe display or by doing one or more forms of feature extraction and subsequent plotting of the resultant data. Neither of these are ideal to give a good impression of the actual motion happening in the sequence. Keyframe displays only show postures and not motion, while feature graphs often rely on multiple analysis steps. Motiongrams are useful as an intermediary step to show spatiotemporal information of a movement sequence, but with no need for doing a full analysis of the data. History The term motiongram was first proposed by Alexander Refsum Jensenius in 2006,{{Dead link, date=A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overview Of The Creation Of Motiongrams
Overview may refer to: * Overview article, an article that summarizes the current state of understanding on a topic * Overview map, generalised view of a geographic area See also * Summary (other) * Outline (list) * ''A Brief Overview'' * Overview and Scrutiny * Overview effect * * {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Processing
In electronics engineering, video processing is a particular case of signal processing, in particular image processing, which often employs filter (video), video filters and where the input and output Signal (electrical engineering), signals are video file format, video files or video streams. Video processing techniques are used in television sets, VCRs, DVDs, video codecs, video player (software), video players, video scalers and other devices. For example—commonly only design and video processing is different in TV sets of different manufactures. Video processor Video processors are often combined with video scalers to create a video processor that Improved-definition television, improves the apparent definition of video signals. They perform the following tasks: * deinterlacing * aspect ratio (image), aspect ratio control * digital zoom and panning (camera), pan * brightness/contrast (vision), contrast/hue/saturation (color theory), saturation/sharpness (visual), sharpness/gam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motion Image
In physics, motion is when an object changes its position with respect to a reference point in a given time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and frame of reference to an observer, measuring the change in position of the body relative to that frame with a change in time. The branch of physics describing the motion of objects without reference to their cause is called ''kinematics'', while the branch studying forces and their effect on motion is called '' dynamics''. If an object is not in motion relative to a given frame of reference, it is said to be ''at rest'', ''motionless'', ''immobile'', '' stationary'', or to have a constant or time-invariant position with reference to its surroundings. Modern physics holds that, as there is no absolute frame of reference, Isaac Newton's concept of ''absolute motion'' cannot be determined. Everything in the universe can be considered to be in motion. Motion applies to var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keyframe
In animation and filmmaking, a key frame (or keyframe) is a drawing or shot that defines the starting and ending points of a smooth transition. These are called ''frames'' because their position in time is measured in frames on a strip of film or on a digital video editing timeline. A sequence of key frames defines which movement the viewer will see, whereas the position of the key frames on the film, video, or animation defines the timing of the movement. Because only two or three key frames over the span of a second do not create the illusion of movement, the remaining frames are filled with " inbetweens". Use of key frames as a means to change parameters In software packages that support animation, especially 3D graphics, there are many parameters that can be changed for any one object. One example of such an object is a light. In 3D graphics, lights function similarly to real-world lights. They cause illumination, cast shadows, and create specular highlights. Lights have ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muybridge
Eadweard Muybridge ( ; 9 April 1830 – 8 May 1904, born Edward James Muggeridge) was an English photographer known for his pioneering work in photographic studies of motion, and early work in motion-picture projection. He adopted the first name "Eadweard" as the original Anglo-Saxon form of "Edward", and the surname "Muybridge", believing it to be similarly archaic. A photographer in the 19th century American West, he photographed Yosemite, San Francisco, the newly acquired Alaskan Territory, subjects involved in the Modoc War, and lighthouses on the West Coast. He also made his early moving picture studies in California. Born in Kingston upon Thames, Surrey, England, at the age of 20 he emigrated to the United States as a bookseller, first to New York City, then to San Francisco. In 1860, he planned a return trip to Europe, but suffered serious head injuries en route in a stagecoach crash in Texas. He spent the next few years recuperating in Kingston upon Thames, whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Étienne-Jules Marey
Étienne-Jules Marey (; 5 March 1830, Beaune, Côte-d'Or – 15 May 1904, Paris) was a French scientist, physiologist and chronophotographer. His work was significant in the development of cardiology, physical instrumentation, aviation, cinematography and the science of laboratory photography. He is widely considered to be a pioneer of photography and an influential pioneer of the history of cinema. He was also a pioneer in establishing a variety of graphical techniques for the display and interpretation of quantitative data from physiological measurement. Biography Marey started by studying blood circulation in the human body. Then he shifted to analyzing heart beats, respiration, muscles (myography), and movement of the body. To aid his studies he developed many instruments for precise measurements. For example, in 1859, in collaboration with the physiologist Auguste Chauveau and the watch manufacturer Breguet, he developed a wearable ''Sphygmograph'' to measure the puls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slit-scan Photography
The slit-scan photography technique is a photographic and cinematographic process where a moveable slide, into which a slit has been cut, is inserted between the camera and the subject to be photographed. More generally, "slit-scan photography" refers to cameras that use a slit, which is particularly used in scanning cameras in panoramic photography. This has numerous applications. This article discusses the manual artistic technique. Use in cinematography Originally used in static photography to achieve blurriness or deformity, the slit-scan technique was perfected for the creation of spectacular animations. It enables the cinematographer to create a psychedelic flow of colors. Though this type of effect is now often created through computer animation, slit-scan is a mechanical technique. John Whitney developed it for the opening credits of the Hitchcock film ''Vertigo''. After he sent some test sequences on film to Stanley Kubrick, the technique was adapted by Douglas T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max (software)
Max, also known as Max/MSP/Jitter, is a visual programming language for music and multimedia developed and maintained by San Francisco-based software company Cycling '74. Over its more than thirty-year history, it has been used by composers, performers, software designers, researchers, and artists to create recordings, performances, and installations. The Max program is modular, with most routines existing as shared library, shared libraries. An application programming interface (API) allows third-party development of new routines (named ''external objects''). Thus, Max has a large user base of programmers unaffiliated with Cycling '74 who enhance the software with commercial and non-commercial Software extension, extensions to the program. Because of this Extensibility, extensible design, which simultaneously represents both the Computer program, program's structure and its graphical user interface (GUI), Max has been described as the lingua franca for developing interactive mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
