发明名称 |
METHODS AND APPARATUS TO DETECT A BLANK FRAME IN A DIGITAL VIDEO BROADCAST SIGNAL |
摘要 |
Methods and apparatus to detect blank images in a digital video broadcast signal are disclosed. An example method of detecting a blank image includes analyzing DC values of luminance blocks associated with a frame to determine a number of the luminance blocks having substantially the same DC value; and identifying the frame as a blank image if the number exceeds a predetermined threshold. |
申请公布号 |
WO2005104676(A3) |
申请公布日期 |
2007.04.26 |
申请号 |
WO2004US09910 |
申请日期 |
2004.03.29 |
申请人 |
NIELSEN MEDIA RESEARCH, INC.;DENG, KEVIN, K. |
发明人 |
DENG, KEVIN, K. |
分类号 |
H04H60/37;H04N5/45;H04N5/85;H04N5/907;H04N9/00 |
主分类号 |
H04H60/37 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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