HEVC (High Efficiency Video Coding) code rate control method based on region-of-interest
A region of interest and rate control technology, applied in the field of HEVC rate control based on region of interest
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[0064] The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0065] Take the test sequence Tennis recommended by coding JCT-VC as an example, HM10.0 is adopted in the example of the present invention, the encoder GOP is a layered B frame structure, the number of B frames in a GOP is 7, and the number of I frames or P frames is 1. The video encoding frame rate is 24 frames per second, the encoding frame number is 240 frames, and the target bit rate is set to 1000kbps. Such as figure 1 As shown, an HEVC code rate control method based on the region of interest in this embodiment is as follows: before starting to encode a frame of the sequence, first obtain the saliency map of the spatial domain of the frame through the GBVS (GraphBasedVisualSaliency) model, and then use the motion vector information The saliency map in the time domain of each frame is obtained, and the two saliency maps are fus...
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