Novel HEVC (High Efficiency Video Coding) rate control GOP (Group Of Pictures)-level bit allocation method
A bit rate control and bit allocation technology, applied in the field of video coding, can solve the problems of less bit allocation, no consideration of differences, and affecting coding performance, so as to improve accuracy and coding performance, reduce bit fluctuations, and improve coding performance. Effect
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[0031] Based on the pass-test sequence shown in Table 1, the test is performed on the HEVC pass-test sequence according to the pass-test conditions formulated by HEVC.
[0032] Table 1 HEVC pass test sequence and frame number
[0033]
[0034]
[0035] Take the 4 code rate points in the CfP (Call for Proposal) code rate shown in Table 2 as the target code rate of the experiment:
[0036] Table 2
[0037] sequence code rate 1 code rate 2 code rate 4 code rate 5 UHD 2.5Mbit / s 3.5Mbit / s 8Mbit / s 14Mbit / s 1080p 24Hz 1Mbit / s 1.6Mbit / s 4Mbit / s 6Mbit / s 1080p 50&60Hz 2Mbit / s 3Mbit / s 7Mbit / s 10Mbit / s WVGA 384Kbit / s 512Kbit / s 1.2Mbit / s 2Mbit / s WQVGA 256Kbit / s 384Kbit / s 850Kbit / s 1.5Mbit / s 720p 256Kbit / s 384Kbit / s 850Kbit / s 1.5Mbit / s
[0038] The rate control algorithm in the original HEVC reference software HM-16.9 implements the λ domain rate control algorithm. Implement the method...
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