EVC, also known as Enhanced Video Coding, is a video compression standard that aims to improve coding efficiency and provide better video quality at lower bit rates This new standard was developed by the Joint Video Experts Team (JVET), which is a collaborative effort between the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG).
EVC was created as a response to the increasing demand for high-quality video streaming over the internet With the proliferation of video content on platforms like YouTube, Netflix, and Amazon Prime Video, there was a need for a more efficient video coding standard that could deliver better video quality while reducing the bandwidth requirements.
So, what exactly is EVC and how does it work?
EVC is based on a hybrid approach that combines various coding tools and techniques from existing video coding standards like AVC (Advanced Video Coding) and HEVC (High Efficiency Video Coding) By leveraging the best features of these existing standards and introducing new coding tools, EVC is able to achieve better compression efficiency and video quality.
One of the key features of EVC is its use of tools like intra prediction, inter prediction, and transform coding to reduce redundancies in the video data Intra prediction involves predicting the values of pixels within a video frame based on neighboring pixels, while inter prediction predicts the values of pixels in one frame based on reference frames Transform coding involves converting the predicted pixel values using mathematical transformations to further reduce the amount of data that needs to be transmitted.
EVC also supports features like adaptive loop filtering, sample adaptive offset, and motion vector merging, which help improve the overall quality of compressed video Adaptive loop filtering is used to reduce artifacts that may occur during the compression process, while sample adaptive offset helps improve the accuracy of motion estimation Motion vector merging allows multiple motion vectors to be combined into a single vector, which can help reduce the complexity of the video coding process.
In addition to these coding tools, EVC also supports a range of tools for scalability and compatibility Scalability allows video streams to be decoded at different resolutions and bit rates, making it easier to adapt to varying network conditions and playback devices what is evc. Compatibility features ensure that EVC can be easily integrated with existing video coding standards and playback devices, making it a versatile and widely accessible standard.
One of the benefits of EVC is that it is able to achieve significant improvements in coding efficiency compared to existing standards like AVC and HEVC By using a combination of existing and new coding tools, EVC is able to achieve up to 30% better compression efficiency than AVC and up to 25% better efficiency than HEVC This means that EVC can deliver better video quality at lower bit rates, making it an attractive option for streaming services and content providers.
Another advantage of EVC is its flexibility and versatility With support for a wide range of coding tools and features, EVC can be customized to meet the specific needs of different applications and use cases Whether it’s streaming live sports events, delivering 4K video content, or supporting virtual reality experiences, EVC can be tailored to deliver the best possible video quality and performance.
In conclusion, EVC is a next-generation video coding standard that promises to revolutionize the way video content is compressed, delivered, and consumed With its advanced coding tools, improved compression efficiency, and support for scalability and compatibility, EVC offers a compelling solution for the growing demand for high-quality video streaming over the internet As video streaming continues to become increasingly popular, EVC is poised to play a key role in shaping the future of online video content.