However, by projecting the signal back to sensor space, one avoids the necessity to deal with the fact that each voxel is characterized by three directions (x,y,z).
The No. 5 spot this week is held by One Direction, the British boy band, whose album "Up All Night" (Syco/Columbia) sold 55,000.
I do not want comedy montages of the new cast – Sallie, Gina, Michael etc – star-jumping on their beds to "Live While We're Young" by One Direction.
The singer was knocked off the top of the chart by One Direction's Midnight Memories last week, which became the fastest-selling album of 2013.
Zayn Malik's debut single "Pillowtalk" has gone straight to the top of the Billboard Hot 100, beating a record held by One Direction in the process.
Last month his supporters set their own words to the tune from a song by One Direction to highlight Jakarta's most intractable problems: flooding, bribery and traffic congestion.
Now the Fab Four have been pushed out of the spotlight by One Direction and a 36-stone sumo wrestler in a new mural, unveiled by the pop art pioneer, celebrating famous figures who have appeared at the Royal Albert Hall.
If I'd known this when watching Comic Relief, I would have pointed at the dying children being wept on by One Direction and said 'Well, you did say that's what you wanted!
But now, the "Boyfriend" singer's fortunes have taken a turn for the worse as Believe is falling far behind documentaries by One Direction, the Jonas Brothers and other popular teen favourites.
