H. 265, which is also called HEVC (High Efficiency Video Coding), is the new video compression standard after H. 264.In today’s video surveillance applications such as parking lot, hotel, harbor, airport, etc, there is growing demand on detail capturing. H.265 standard brings extensive possibilities.We make detailed comparisons on several aspects, such as compression ratio, quality and file size.
1. H.265 vs H.264 Compression Ratio & Bandwidth Utilization
H.265 has better compression performance and lower bandwidth utilization ratio. Compared with H. 264, the greatest strength of H. 265 is that it has a higher compression ratio, and the primary use is to further reduce the design flow rate, in order to lower the cost of storage and transmission.
In same resolution, H. 265 can save around 50% of the bit rate.
2. H.265 vs H.264 Quality
H.265 is designed to use a more efficient means of encoding pixel data and incorporates larger blocks of pixels than H.264’s macroblocks did. It can divide a picture into tiles for more efficient parallel processing and decode slices independently for better resynchronization. H.265 offers better motion compensation processing and vector prediction.
3. H.265 vs H.264 File Size
H.265 is one of the best way to reduce file size with original quality being remained. It saves hard drive space 50% to 60%.