what's Video Compression H.264 vs H.265

Video Compression

Conceived to boost video streaming, High Efficiency Video Coding (HEVC), or H.265, is a video compression standard designed to substantially improve coding efficiency when compared to its precedent, the Advanced Video Coding (AVC), or H.264. High Efficiency Video Coding (HEVC), also known as H.265 and MPEG-H Part 2, is a video compression standard, one of several potential successors to the widely used AVC (H.264 or MPEG-4 Part 10). In comparison to AVC, HEVC offers about double the data compression ratio at the same level of video quality, or substantially improved video quality at the same bit rate. It supports resolutions up to 8192×4320, including 8K UHD.

With the rapid development of IP video surveillance technology, the current H.264 (MPEG-4/AVC) standard no longer meets the requirement of video encoding for higher image resolution. Going forward, 4K UHD and 8K UHD video equipment will inevitably become the standard just as Full HD is today. As the next generation video compression standard, H.265 comes into market, H.265 or High Efficiency Video Coding (HEVC) has been gradually adopted in high-definition IP surveillance products such as HD IP cameras, NVR. (Note that your IP Camera and your VMS must support h.265 compression or something like it in order to take advantage of these benefits) 

HEVC promises a 50% storage reduction as its algorithm uses efficient coding by encoding video at the lowest possible bit rate while maintaining a high image quality level. Even though HEVC is already finalized, it is still not popular. Apart from the fact that the codec is patented by various parties and it is associated with high licensing fees, HEVC/H.265 comes with the trade-off requiring almost 10x more computing power.

The difference between H.264 vs H.265 is primarily one of streaming bandwidth and storage requirements There is great interest in H.265 recording, because the new video coding standard brings huge bandwidth savings of approximate 40-50% over H.264 encoded content with similar quality. In a nutshell, the H.265 can offer higher quality video for bandwidth-constrained network connection. This means when using H.265 IP cameras, the user will experience high video quality with smooth playing, low video latency, and lower storage requirements. Take into consideration any industry or government regulations about image quality and detail when choosing a compression format.

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