H.264 abbreviations encountered during learning

1. MPEG Moving Picture Experts Group dynamic image Expert Group

2. GOP group of picture video group continuous frame image combination is a GOP Image Compression Technology

3. AVC advanced video coding advanced video encoding ITU-T named this standard H. 264 (previously called H.26L), and ISO/IEC called it MPEG-4 advanced video encoding (AVC), and it will become Part 10th of the MPEG-4.

4. ITU International Telecommunications Union International Telecommunication Union (ITU), a specialized agency established in 1865 to develop international telecommunication standards.

5. ISO International Organization for Standardization ISO 1 is derived from the Greek "ISOs", that is, "equal"-equality. The International Organization for Standardization (ISO) is a World Federation of standardization organizations (ISO member groups. International standards are generally developed by the ISO Technical Committee. ISO maintains close cooperation with the International Electrotechnical Commission (IEC) in electrical technology standardization.

6. IEC International Electrotechnical Commission (IEC) was established in 1906 and has a history of more than 90 years. It is the world's earliest international electrical Standardization Organization, responsible for international standardization work in the field of electrical engineering and Electronic Engineering.

7. JVT Joint Video Team joint video workgroup

8. PTs presentation time stamp PTS is mainly used to measure when decoded video frames are displayed.

9. DTS decode time stamp DTS mainly identifies when bit streams in the memory are read into the decoder for decoding

10. Ms motion estimation Motion Estimation

11. Cuda compute uniied device architecture Cuda is a general parallel computing architecture launched by NVIDIA, which enables GPU to solve complex computing problems.

12. FMO flexible macroblock ordering flexible macro block order

13. HVS Human Visual System

14. Pal phase alteration line-by-line inverted-phase Television Broadcasting System

15. YUV YCbCr chroma color Cr reflects the difference between the red part of the RGB input signal and the brightness value of the RGB signal. CB reflects the difference between the blue part of the RGB input signal and the brightness value of the RGB signal.

16. IDR instantaneous decoding refresh immediately refreshes the image H. 264 the introduction of IDR images is intended for decoding and re-synchronization. When the decoder decodes an IDR image, it immediately clears the reference frame queue and outputs or discards all decoded data, search for the parameter set again to start a new sequence.

17. Sad (sum of absolute difference) = SAE (sum of absolute error) is the absolute error and

18. satd (sum of absolute transformed difference) is the sum of absolute values after Hadamard transformation.

19. SSD (sum of squared difference) = SSE (sum of Squared Error) is the sum of squares of the difference

20. Mad (mean absolute difference) = Mae (mean absolute error) Mean Absolute Difference

21. MSD (mean squared difference) = MSE (Mean Squared Error) mean square error

22. SNR peak signa to noise ratio Peak Signal-to-Noise Ratio

23. The first NALU of the SPS sequence parameter set H.264 code stream

24. PPS picture parameter set the second NALU of the H.264 bitstream of the image parameter set

25. IDR is the third NALU of the H.264 code stream.

26. sodb: string of data bits the most primitive encoding data

27. rbsp: Raw byte sequence payload adds rbsp_stop_ont_bit to sodb and uses 0 to complement the bits in bytes.

28. ebsp: Extended byte sequence payload it is based on rbsp to add the imitation validation byte, to prevent conflicts with the start code, if there are three consecutive bytes 00000000 00000000 bytes 00xx, insert a 0x03

29. NALU network isolation action layer unit network abstraction layer Unit