By Vivienne Sze
This booklet presents builders, engineers, researchers and scholars with distinct wisdom in regards to the excessive potency Video Coding (HEVC) ordinary. HEVC is the successor to the commonly winning H.264/AVC video compression average, and it presents round two times as a lot compression as H.264/AVC for a similar point of caliber. The functions for HEVC won't purely hide the distance of the well known present makes use of and functions of electronic video – they're going to additionally comprise the deployment of recent providers and the supply of stronger video caliber, reminiscent of ultra-high-definition tv (UHDTV) and video with better dynamic variety, wider diversity of representable colour, and larger illustration precision than what's quite often came across this day. HEVC is the subsequent significant new release of video coding layout – a versatile, trustworthy and powerful resolution that might help the following decade of video purposes and straightforwardness the load of video on world-wide community site visitors. This e-book offers a close rationalization of a number of the components of the traditional, perception into the way it used to be built, and in-depth dialogue of algorithms and architectures for its implementation.
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Extra info for High Efficiency Video Coding (HEVC): Algorithms and Architectures
Sample text
4 Leading pictures and trailing pictures P1 P3 P5 P2 P7 P6 TSA I0 P4 P8 Fig. 5 TSA example There are three types of trailing pictures in HEVC: temporal sub-layer access (TSA) pictures, step-wise temporal sub-layer access (STSA) pictures, and ordinary trailing pictures (TRAIL). 3 Temporal Sub-layer Access (TSA) Pictures A TSA picture is a trailing picture that indicates a temporal sub-layer switching point. The TSA picture type can only be used for a picture if it is guaranteed that no picture that precedes the TSA picture in decoding order with a temporal ID that is greater than or equal to the temporal ID of the TSA picture itself is used for prediction of the TSA picture or any subsequent (in decoding order) pictures in the same or higher temporal sub-layer as the TSA picture.
9a. Note that RADL pictures, if present, could either be kept or discarded. A disadvantage with this method of discarding RASL pictures is that discarding data in a stream may impact system layer buffers. The splicer may therefore need to be capable of modifying low-level system parameters. If the RASL pictures are forwarded, the system layer buffers are not affected. Another problem is that the POC values that follow the splicing point would need to indicate the proper output order relationship relative to the pictures that precede the splicing point, since a CRA picture does not begin a new CVS.
Sjöberg and J. Boyce sequence, which can be useful for systems interfaces. Other parameters describe usage of coding tools, or provide coding tool parameters, which can improve bit rate efficiency. Additionally, the SPS can optionally contain Video Usability Information (VUI) data which provides information that does not directly impact the decoding process, as described in Sect. 5. Key parameters describing the characteristics of the coded sequence are included in the SPS. The profile, tier, and level indications specify conformance points, similar to the profile and level definitions in AVC.