METHODS AND APPARATUS FOR DETECTING ON-SCREEN MEDIA SOURCES
摘要
Methods and apparatus for detecting on-screen media sources are disclosed. An example method includes monitoring a region of interest of a video signal for a first image, comparing the first image to a stored image, and confirming the media device change when the stored image differs from the first image and is associated with a secondary criterion.
申请公布号
WO2007149458(A2)
申请公布日期
2007.12.27
申请号
WO2007US14317
申请日期
2007.06.20
申请人
NIELSEN MEDIA RESEARCH, INC.;ZHANG, MIN;WRIGHT, DAVID, HOWELL;COOPER, SCOTT;DYKSTRA, REGINA;RAMASWAMY, ARUN;NELSON, DANIEL
发明人
ZHANG, MIN;WRIGHT, DAVID, HOWELL;COOPER, SCOTT;DYKSTRA, REGINA;RAMASWAMY, ARUN;NELSON, DANIEL