Patent Document ID: 8891009
Application ID: 13220000
Patent Status: 1

Claim One:
1. A method for retargeting a compressed video stream comprising a plurality of frames, the method comprising: determining saliency information for the plurality of frames, wherein the compressed video stream has been processed in accordance with an inter-frame prediction technique such that the plurality of frames include border frames and inner frames, the inner frames being positioned in-between the border frames; determining a cost metric for the compressed video stream, wherein the cost metric accounts for cropping, scaling, temporal factors, and spatial factors; and retargeting the compressed video stream in accordance with the saliency information and the cost metric to produce a retargeted video, wherein retargeting the compressed video stream comprises: obtaining a crop window for each border frame in the plurality of frames in accordance with a cropping loss and a scaling loss for the border frame; computing a non-linear crop window path over inner frames between the crop windows of border frames in accordance with spatial saliency information and temporal saliency information, the non-linear crop window path being computed without obtaining crop windows for the inner frames; and producing the retargeted video from the crop windows and the non-linear crop window path.