发明名称 |
SCENE CHANGE DETECTION FOR PERCEPTUAL QUALITY EVALUATION IN VIDEO SEQUENCES |
摘要 |
There are provided a plurality of methods for detecting a scene change in a streamed video, the streamed video comprising a series of pictures. An example method comprises calculating, for a plurality of positions, a difference between the costs of coding macro-blocks at the same position in successive pictures. The method further comprises identifying a new scene when the sum of the differences for a plurality of positions meets a threshold criterion. There is further provided a method of determining the perceptual impact of a packet loss on a streamed video the method comprising: identifying a packet loss; and determining if the lost packet contained information relating to a picture at the start of a new scene, wherein a new scene is detected using one of the methods disclosed herein. |
申请公布号 |
US2014376886(A1) |
申请公布日期 |
2014.12.25 |
申请号 |
US201114351483 |
申请日期 |
2011.10.11 |
申请人 |
Pettersson Martin;Argyropoulos Savvas;Lindegren David;List Peter |
发明人 |
Pettersson Martin;Argyropoulos Savvas;Lindegren David;List Peter |
分类号 |
H04N17/00;H04N5/93 |
主分类号 |
H04N17/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of detecting a scene change in a streamed video, the streamed video comprising a series of pictures, the method comprising:
calculating, for a plurality of positions, a difference between the costs of coding macro-blocks at the same position in successive pictures; and identifying a new scene when the sum of the differences for a plurality of positions meets a threshold criterion. |
地址 |
Vallentuna SE |