SURVEILLANCE VIDEO COMPRESSION
Surveillance video compression works with one or more algorithms, such as create a compressed file. That means it weighs less, and it is ready to be viewed or stored. However, as it weighs a lot, it needs to be compressed to reduce its size. The file to compress it can lose image quality.
SURVEILLANCE VIDEO COMPRESSION
SECURITY CAMERA VIDEO COMPRESSION
Surveillance video compression is performing through a video codec that works on one or more compression algorithms. Compressing video from surveillance systems consists of applying an algorithm that involves using an algorithm to the source video to create a compressed file that is ready for transmission or storage. An inverse algorithm is applied to produce a video that shows virtually the same content as the source video to play the compressed file. The time it takes to compress, send, decompress and display a file is called latency. The more advanced the compression algorithm, the higher the latency.
Once a security camera video compresses, its original format changes into a different form (depending on the codec used). A pair of algorithms that works together is called a video codec (encoder/decoder). Video codecs of different standards usually are not compatible with each other. That is, video content compressed using one bar cannot be decompressed with a different standard. The video player must support that video format or be integrated with the compressing codec to play the video file.
SURVEILLANCE VIDEO COMPRESSION - HOW DOES IT WORK?
A security camera video compression is a valuable tool when your security camera system has bandwidth and storage limitations. The compressed video files will take up less space, allowing you to store more videos or keep the files for more extended periods. However, if your video is compressing too much, the image quality can remain uncompromising. For this reason, it is essential to choose the right surveillance video compression technology to have the best balance possible between video compression and image quality.
SURVEILLANCE VIDEO COMPRESSION - WHAT IS A CODEC?
There are two types of codecs – lossy and lossless. Most video compression is base on the lossy s video compression format, which compresses data to lose some of the original information. In lossless security camera video compression, no pixels change, so the image looks the same after decompression. With lossless security camera video compression, every single bit of data initially in the file remains after the file is uncompressed. Though lossless surveillance video compression is adequate for video compression, its major disadvantage is that it doesn’t reduce the data very much. Deformation. However, it achieves much smaller file sizes while still retrieving a pretty clear image.
Different surveillance video compression standards reduce data by various means. Hence, results differ in bit rate, quality, and latency. Video compression is an essential tool to help prevent network traffic from becoming saturated. What are the most popular surveillance video compression standard or compression schemes? There are three significant security camera video compression worldwide standards:
H264 VS H265 :
H.264 is another name given to MPEG-4 Part 10, also known as AVC (Advanced Video Coding).
H.264 security camera video compression is the newest and most efficient security camera video compression codec. It works by taking small groups of frames and evaluating them together as a series to eliminate duplicate content that appears in each frame without changing. H.264 offers higher compression rates. It requires much less storage space than MPEG-4 and M-JPEG.
M-JPEG is the compilation of separately compressed JPEGs in a sequence, thus creating a video. It focuses on the quality of the image rather than the quantity, i.e., fewer frames per second and priority give to image resolution. This surveillance video compression is appropriate for megapixels, and many other security cameras are supported. Some advantages of M-JPEG include better decompression on the computer, better live viewing, and excellent image quality (consistently). M-JPEG is also unlicensed, making it accessible for the user and viewer. Another aspect that makes M-JPEG good is its robustness, and if one frame is dropping, it does not affect the video.
MPEG-4 uses techniques similar to M-JPEG, as far as putting pictures in a sequence. It essentially compares two compressed images and saves the photo. It holds only the difference from each additional sequential image, such as movement, thus saving time, memory space, and processing power. It can sync audio and video and is excellent for real-time viewing. MPEG-4 was designed to support low-bandwidth applications.
SECURITY CAMERA VIDEO COMPRESSION : CONCLUSION
Surveillance video compression technologies such as Motion JPEG, MPEG-4, and H.264 allow users to transmit and record high-quality security videos without consuming much bandwidth. Even though the surveillance video compression industry is relatively mature, the new video compression H.265+ standard will improve image transmission. Would you like to learn more about H264 vs. H265+? Contact Dicsan Technology to learn more about how you can benefit from surveillance video compression and security system installer and everything about surveillance in Miami. Contact us