| 词条 | Light writing |
| 释义 |
TechniqueBy sequencing stills taken with 4–30 second exposure as lights are moved in and through the frame this effect creates the optical illusion that the light is moving. Pans, tilts, and most other motion camera techniques can be applied with standard stop motionapproaches. The most common technique is to capture multiple second exposures of light moving from one point to another in the frame. As the sequence is built the beginning and ending points of the lights motion can be moved along a given path. When the pictures are put in sequence the light seems to move with classic stop motion. Most commonly, all of the work is done in camera at practical (real world, not a studio) locations. The stills can be taken with a digital camera or film camera. Light writing is most akin to another form of stop motion animation known as direct manipulation animation. The technique is also reminiscent of the slitscan process already used in the 1960s. Recent historyThough the technique was employed almost one hundred years ago by Pablo Picasso it has only recently been used for mainstream advertisements.[4] Awareness of light writing was raised when Sprint Nextel unveiled an ad campaign featuring the effect in the summer of 2007.[5] See also
Notes1. ^Mann, S. (2014, June). The Sightfield: Visualizing Computer Vision, and Seeing Its Capacity to" See". In Computer Vision and Pattern Recognition Workshops (CVPRW), 2014 IEEE Conference on (pp. 618–623). IEEE. 2. ^Mann, S., Janzen, R., Ai, T., Yasrebi, S. N., Kawwa, J., & Ali, M. A. (2014). Toposculpting: Computational lightpainting and wearable computational photography for abakographic user interfaces. EYE, 3, P3. 3. ^{{cite web |url=http://www.milienzo.com/2007/07/04/cleaning-up-graffiti-with-time-lapsed-photography/ |title=cleaning up graffiti with time lapse photography |quote=Flickr user, lichtfaktor calls himself a Lightwriter and creates stunning photography by setting his camera to over-expose and ‘painting’ various lights into the shot. |first=Aaron |last=Russell |accessdate=2007-10-11 |deadurl=yes |archiveurl=https://web.archive.org/web/20071011144926/http://www.milienzo.com/2007/07/04/cleaning-up-graffiti-with-time-lapsed-photography/ |archivedate=2007-10-11 |df= }} 4. ^{{cite web |url=http://www.computerarts.co.uk/tutorials/2d__and__photoshop/painting_with_light |title=Painting with Light | quote=inspiration...comes from a photograph taken of Picasso in 1924. | work=Computer Arts |accessdate=2007-10-14}} 5. ^{{cite web |url=https://www.dexigner.com/news/11537|publisher=Dexigner |title=Sprint Races Ahead at the Speed of Light with Help from Brickyard VFX | quote=The spot, shot entirely in-camera, was created from a series of still images linked together to achieve a live action effect. | first=Levent |last=Ozler |accessdate=2007-10-13}} External links
3 : Animation techniques|Stop motion|Photographic techniques |
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