Tag: compression

Video codecs and video containers play a crucial role in multimedia and streaming. Understanding these terms’ differences can help you make informed decisions about manipulating and distributing video content. This article will dive into the basics of video codecs and containers, explore their functions and types, and discuss their critical differences. Additionally, we will delve into the interplay between codecs and containers and how they work together to deliver high-quality video streaming solutions. Let’s go! Video Codecs: The Heart of Video Compression A video codec, an amalgamation of ‘Encoder’ and ‘Decoder,’ forms the heart of video compression and decompression. The codec is responsible for encoding or reducing video file size by eliminating redundant or less critical data without degrading the video quality significantly. This process, known as lossy compression, enables smooth streaming experiences, reducing bufferin…

This paper uses a well-known block-based model for Just Noticeable Distortion (JND) estimation to apply near-lossless JPEG-LS coding in Medical Imaging. The method provides higher compression ratios without compromising visual quality, allowing mHealth applications like remote diagnosis and second opinion provision, as well as medical education and home monitoring. JND is higher at regions of low and high brightness.

Dirac uses overlapped block-based motion compensation (OBMC) to achieve good compression and avoid block-edge artifacts which would be expensive to code using wavelets. Dirac employs wavelet compression (like JPEG2000), instead...