Deze zou ik onvertaald laten - een heel specifieke term uit de EXIF-specificatie over een vorm van sampling (het tegenovergestelde is centered/gecentreerd).

http://www.tek.com/Measurement/App_Notes/25_15215/eng/25W_15...

Een handige glossary met veel (technische) informatie over dit soort terminologie zegt het als volgt:

Co-Sited Sampling – Co-sited sampling ensures that the luminance and the chrominance digital information is simultaneous, minimizing chroma/luma delay. This sampling technique is applied to color difference component video signals: Y, Cr, and Cb. The color difference signals, Cr and Cb, are sampled at a sub-multiple of Y, the luminance frequency – 4:2:2, for example. With co-sited sampling, the two color difference signals are sampled at the same instant, as well as one of the luminance samples.

Co-Siting – Relates to SMPTE 125M component digital video, in which the luminance component (Y) is sampled four times for every two samples of the two chrominance components (Cb and Cr). Co-siting refers to delaying transmission of the Cr component to occur at the same time as the second sample of luminance data. This produces a sampling order as follows: Y1/Cb1, Y2/Cr1, Y3/Cr3, Y4/Cb3, and so on. Co-siting reduces required bus width from 30 bits to 20 bits.



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Note added at 1 hr (2007-10-03 08:20:08 GMT)
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Over de glossary: die blijkt uit drie delen te bestaan. De links voor de overige 2 PDF-bestanden zijn als volgt:

http://www.tek.com/Measurement/App_Notes/25_15215/eng/25W_15...
http://www.tek.com/Measurement/App_Notes/25_15215/eng/25W_15...