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.
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申请公布号 |
US7984462(B2) |
申请公布日期 |
2011.07.19 |
申请号 |
US20060534790 |
申请日期 |
2006.09.25 |
申请人 |
THE NIELSEN COMPANY (US), LLC |
发明人 |
DENG KEVIN K. |
分类号 |
H04N7/16;G06K9/00;H04H60/37;H04N5/45;H04N5/85;H04N5/907 |
主分类号 |
H04N7/16 |
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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