Among the authors of the paper "Stitching videos streamed by mobile phones in real-time", how many of them are affiliated with Cairo Microsoft Innovation Lab?
"FIBER: A Generalized Framework for Auto-tuning Software" is the Title of paper; affiliated refers to Affiliation;  University of Tokyo is the affiliation organization
SELECT COUNT(T1.AuthorId) FROM PaperAuthor AS T1 INNER JOIN Paper AS T2 ON T1.PaperId = T2.Id WHERE T1.Affiliation = 'University of Tokyo' AND T2.Title = 'FIBER: A Generalized Framework for Auto-tuning Software'
database name:db_id authors
Author table Author Cols: Id dtype integer, Name dtype text, Affiliation dtype text, 
Conference table Conference Cols: Id dtype integer, ShortName dtype text, FullName dtype text, HomePage dtype text, 
Journal table Journal Cols: Id dtype integer, ShortName dtype text, FullName dtype text, HomePage dtype text, 
Paper table Paper Cols: Id dtype integer, Title dtype text, Year dtype integer, ConferenceId dtype integer, JournalId dtype integer, Keyword dtype text, 
PaperAuthor table PaperAuthor Cols: PaperId dtype integer, AuthorId dtype integer, Name dtype text, Affiliation dtype text, 
