HEVC 4K Compliance and Quality

HEVC has gained tremendous momentum in the DTV and media industries for its capability to improve compression efficiency by 50% compared to the incumbent compression standard H.264. HEVC has made a significant impact already in several markets including broadcast, VOD, Adaptive bit rate streaming, and surveillance. There is a general consensus among technology leaders that HEVC is the key to delivering 4K resolution video to TV and mobile devices.

Need state-of-the-art analyzer to unravel the complexity of HEVC video

Video compression standards are known for their complexity and HEVC extends that complexity even further by introducing more advanced and sophisticated tools as compared to H.264. Professionals involved in HEVC content encoding or distributing need a reliable HEVC analyzer for troubleshooting and gauging compression efficiency. This is especially true when the compression standard is new or evolving as it takes time before these products reach production-proven status. What may seem to be a small encoding or compliance error can end up creating major interoperability issues.

Vega HEVC is a state-of-the-art analyzer for debug, standards compliance and quality assurance of encoded streams. It includes complete parsing, decoding and frame-by-frame navigation to provide deep insight into every aspect of an encoded stream. Vega HEVC generates elaborate error reports that pinpoint exactly where and what types of errors are present so that the user can take corrective actions to fix the problems.

Ensure not just standards compliance but also superior video quality

Video quality is a critical determinant of the overall quality of experience. Viewers will expect 4K videos to be nothing less than spectacular. To measure the image quality, some commonly used measures are Mean-Squared Error, Peak Signal-to-Noise Ratio and structural similarity. Vega HEVC YUV Quality viewer measures these parameters at stream and frame level to allow users to quickly identify the quality issues.

There can be vast changes in the video quality with changes in encoding parameters. Achieving high compression by maintaining high video quality is always a challenge. Vega HEVC Comparison viewer allows developers to identify the quality issues present in the stream. Vega HEVC includes quality parameters such as blockiness, blurriness, black frames, pixelation and contrast.

When tweaking the encoder for compression and quality, you need access to every parameter that could possibly affect the video quality. Vega Comparison viewer compares the high level elements and also provides in-depth comparison of a large number of elements and parameters such as compression ratio, buffer occupancy, QP, frame size and motion vectors.

Vega HEVC’s feature set also allows for comparison between two HEVC files, HEVC vs. VP9, or HEVC vs. H.264. In the initial stages of HEVC product rollout, this feature can be very useful in assessing the compression efficiency of the encoder.

Interra’s Vega is an industry leading media analysis platform for debug and verification of standards compliance. Vega HEVC is an in-depth, PC-based software for off-line analysis of HEVC elementary streams. Vega HEVC supports all resolutions, including 8K and includes various high-efficiency utilities for video comparison, quality checks and fast analysis. Vega analyzers have helped encoder manufacturers, broadcasters and video service providers across the globe, create and distribute error-free, high quality video.

Quality Analysis Workflow