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Space development and ninja ... Work experience "Asoma Navi Festival" 10 / 30-31
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In addition, "special workshops" will be held where children can learn more about their "likes" such as short tennis and video production.
T-KIDS Share School is a large-scale event "..." co-sponsored by Kashiwanoha T-SITE with the theme of work and work style. → Continue reading
The educational environment, university entrance examination reform, and the environment surrounding children are undergoing major changes. Amid the changes of this era, parents' interest in the education and career of children is only increasing. Risemum will transmit accurate and useful information centered on educational information, as a medium that is close to the hearts of parents. We will promptly deliver information that parents are interested in such as education reform, international education, examinations, educational events, STEM education including programming.
Wikipedia related words
If there is no explanation, there is no corresponding item on Wikipedia.
Still imageIs the opposite word, and in a narrow definition, "moving image"In a broad definition, it may also refer to a media package provided with audio and music synchronized with the time axis."Sequentially switch selected still images"Slide show""Picture-story showUnlike, if you keep switching continuously changing still images at high speed, the still images appear to move as an illusion of human vision.Expression style usingMedia).
Japanese "video" isanimator・ Of the filmmakerKenzo MasaokaWas first devised and proposed as a translation of "animation", and was actually used in that sense, such as the establishment of multiple animation companies with the company name "~ video", but since the 2000s it has been used only for animation. It is also used as a term that refers to a wider range of video objects, including not only the expression styles with the above-mentioned properties.
See each section for a detailed history of movies and other media.
19st centuryFrom to the endPhenakistiscope(Around 1831),Zoetrope(Around 1834),PraxinoscopeTools such as (around 1877) for showing "moving pictures" using the afterimage phenomenon already existed.Each structure is slightly different, but basically a picture drawn continuously on paperslitIt was said that the picture seemed to move by looking through it.
Although it had a simple structure, it can be called the ancestor of video in that it uses afterimages to reproduce "movement" using human vision, just like modern video.
Invention of the movie
It is said that moving images became available (as media) in the 1890s.
1891, a famous American inventor,Thomas edisonbyKinetoscope(kinestoscope) Patented.This is at a constant speedthe filmIt consists of a mechanism for sending out a film and a light source for projecting a picture on the film.projectorIt was a machine very similar to, but it did not have the ability to project onto a screen like in current movies.
At about the same time, in 1895, the French inventors Auguste and LouisLumiere brothers CinematographObtained a patent.This is different from the Kinest scopescreenIt was possible to project the image on.
With the development of Kinest Scope and Cinematograph, it has become possible to shoot landscapes and people as moving images, which could only be taken with still images, and it is possible to continuously and easily change the flow of time and the behavior of people. It has become possible to record and play back in a more natural way.
However, the camera at that time recorded only visual information, and due to the limitation of development technology, the images taken and reproduced were monochrome.It wasn't until a little later that we were able to handle colored images and add audio and music as we do today.
Fusion with voice and music
The spread of television
When television was invented in the early 1900s and spread to ordinary households, moving images became more familiar to humans.
Due to technological advances accompanying the spread, things that could only be expressed in monochrome at first can now be expressed in natural colors, and by improving the number of frames per second (frame rate or fps), movement can be achieved. Moving images will become denser and more accurate, such as being able to be expressed smoothly.
Videography(English: videography) IsDigital video cameraSo I took a videoComputerでVideo editingAnd one moving image (Video work)Technology, Painting method,Learning, Expression method, expression means, expression form.
ス タ ジ オShoot insideStudio shot""Set shootingWhen shooting outdoors outside the studio,Location shooting"Or"openphotograph".Also,VFXIn movies that useBlue backgroundThere is shooting (when using green, it is called a green background).
When shooting movies and video camerasStill picturesWith movements not found inCamera work(Bread,tracking,dolly,,, etc.) can be expressed, and in many cases,voice OfrecordingIs also needed. Also, after the shooting is completed, the video and audioEditis necessary. When editingmontageTechnique ofNarrationThe addition of “” gives a certain meaning to the image.
For compression, you can completely restore the original dataLossless compression(Also known as Lossless), high compression is performed instead of performing processing that cannot restore the original data at the compression stage.Lossy compressionThere is (also called Lossy).Among them, especially for moving images, compression is often performed by a special algorithm based on various properties and characteristics of the moving image (or the person who watches it).Especially the algorithm program that performs compression / decompression (encoding / decoding) used at that time.CodecCall.
A moving image must handle a large number of images continuously, and most moving images require an overwhelming amount of information to be processed as compared with a still image.At the same time, it is also required to process a large amount of information at high speed and continuously (without damaging the original time axis) at the time of reproduction.Therefore, most of the video compression algorithms are composed of a compression technology different from that of the still image, or a combination of an existing compression technology and another compression technology.
In general, still image compression only needs to be considered in the spatial direction, but in the case of moving image compression, compression is often performed in consideration of information in the temporal direction in addition to that (MPEG, etc.).However, these algorithms are premised on handling raster images, and do not apply to vector images used in Flash movies (.SWF).
The file formats for storing videos are as follows (in parentheses, in WindowsFile extension).
- APNG (.png)
- REVIEWS (.avi)
- ASF (.asf, .asx, .wmv, .wvx, .wma, .wax)
- DivX Media Format (.divx .div)
- Sailor (.mkv .mka .mks)
- MPEG-2 TS (.m2t .m2ts)
- MP4 (.mp4, .m4v, .m4a)
- Multiple-image Network Graphics (.MNG)
- Ogg (.ogg .ogx .ogv .oga)
- Ogg Media (.ogm)
- QuickTime (.mov .qt)
- Animated GIF (.gif)
- Flash Video (.flv)
- WebM (.webm)
- ^ Sanseido Web Dictionary Japanese / English "Video"
- ^ "What is a video?”. Asahi Shimbun. NovemberBrowse.