TY - JOUR
T1 - Optimal bitstream adaptation for scalable video based on two-dimensional rate and quality models
AU - Hou, Junhui
AU - wan, Shuai
PY - 2012
Y1 - 2012
N2 - In this paper, a two-dimensional (2D) rate model is proposed considering the joint impact of spatial (i.e., the frame size) and SNR (i.e., the quantization step) resolutions on the overall rate-distortion performance. A related 2D quality model is then proposed in terms of perceptual quality. Then the two proposed models are applied to scalable video to address the problem of optimal bitstream adaptation. Experimental results show that the proposed rate and quality models fit the actual data very well, with high coefficients of determination and small relative root mean square errors. Moreover, given the bandwidth constraint and required display resolution of the end users, the optimal combination of SNR and spatial layers that provides the highest perceptual quality can be achieved using the proposed models.
AB - In this paper, a two-dimensional (2D) rate model is proposed considering the joint impact of spatial (i.e., the frame size) and SNR (i.e., the quantization step) resolutions on the overall rate-distortion performance. A related 2D quality model is then proposed in terms of perceptual quality. Then the two proposed models are applied to scalable video to address the problem of optimal bitstream adaptation. Experimental results show that the proposed rate and quality models fit the actual data very well, with high coefficients of determination and small relative root mean square errors. Moreover, given the bandwidth constraint and required display resolution of the end users, the optimal combination of SNR and spatial layers that provides the highest perceptual quality can be achieved using the proposed models.
KW - 2D perceptual quality model
KW - 2D rate model
KW - Bitstream adaptation
KW - Scalable video
UR - http://www.scopus.com/inward/record.url?scp=84862651584&partnerID=8YFLogxK
U2 - 10.15837/ijccc.2012.3.1388
DO - 10.15837/ijccc.2012.3.1388
M3 - 文章
AN - SCOPUS:84862651584
SN - 1841-9836
VL - 7
SP - 473
EP - 481
JO - International Journal of Computers, Communications and Control
JF - International Journal of Computers, Communications and Control
IS - 3
ER -