发明名称 |
METHOD AND APPARATUS FOR REFRAMING AND ENCODING A VIDEO SIGNAL |
摘要 |
Reframing is used to re-size an image or video content, e.g. for displaying video signals with a given aspect ratio on a display having a different aspect ratio. Window cropping parameters (position and size over time) are constrained in order to optimise the rate/ distortion of the encoded output video signal. Initial reframing is improved by computing a saliency map which considers the video coding context and by optionally providing a macroblock coding cost map and then taking the saliency map or a combined saliency/coding cost map into account so that the coding cost for said reframed video signal is smaller than the coding cost for another candidate reframing windows' sizes and positions. |
申请公布号 |
KR20140042860(A) |
申请公布日期 |
2014.04.07 |
申请号 |
KR20147001126 |
申请日期 |
2012.06.25 |
申请人 |
THOMSON LICENSING |
发明人 |
URBAN FABRICE;CHAMARET CHRISTEL;GUILLOTEL PHILIPPE |
分类号 |
H04N19/00;G06K9/46;G06K9/62;G06T7/40 |
主分类号 |
H04N19/00 |
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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