—Stream authentication schemes (SAS) aim to achieve effective authentication of multicast streams over lossy networks. Almost all of the existing SASs are designed for stream data integrity protection only. In this paper, we argue that content integrity protection is more important than data integrity to human users. We present a content-aware SAS in Motion JPEG2000 streaming. In our scheme, a ...

This paper presents a forward error correction technique that can be applied to protect JPEG2000 streams during their transmission over wireless channels with both sparse and packet error statistics. To this aim, we adopt the tools of the JPEG2000 Wireless (JPWL) standard, by introducing a method for Unequal Error Protection (UEP) and a virtual interleaving technique of the stream. All these te...

In this paper, a context-based wavelet histogram (CBWH) is proposed to characterize image textures. A simple method is also developed to estimate bit-plane probabilities of the CBWH, which can be used as features to segment textured images. Based on the arithmetic coder of the JPEG2000 standard, the CBWH-derived image features can be obtained directly from the MQ table. As a result, images can ...

Historically, Joint Photographic Experts Group 2000 (JPEG2000) image compression and multiframe super-resolution (SR) image processing techniques have evolved separately. In this paper, we propose and compare novel processing architectures for applying multiframe SR with JPEG2000 compression. We propose a modified adaptive Wiener filter (AWF) SR method and study its performance as JPEG2000 is i...

In 1996, the JPEG committee began to investigate possibilities for a new still image compression standard to serve current and future applications. This initiative, which was named JPEG2000, has resulted in a comprehensive standard (ISO 15444 | ITU-T Recommendation T.800) that is being issued in six parts. Part 1, in the same vein as the JPEG baseline system, is aimed at minimal complexity and ...

For demanding applications, for example image or video processing, there may be computations that aren’t very suitable for digital signal processors. While a DSP processor is appropriate for some tasks, the instruction set could be extended in order to achieve higher performance for the tasks that such a processor normally isn’t actually design for. The platform used in this project is flexible...