This paper presents an error concealment technique for image transmission in JPEG2000 for the lowest frequency coefficients. The proposed method uses the layer structure that is a feature of the JPEG2000. The most significant layer is hidden in place of the lowest layer of the bit stream. After transmission this embedded layer is used for error concealment. The bit stream encoded using the prop...

The growth of manufacturing was central to the economic development of nineteenth century America. In the early stages of industrialization, the commitment to produce was frequently seasonal or part-time, and establishments might shut down operations for weeks or months at a time. But, as transportation improved and markets widened in their geographic scope and, as technological and organizatio...

A new species of the ichneumonid subfamily Labeninae, Apechoneura seminigrasp. n., is described. Specimens were collected from the Amazon Rainforest of Colombia.

The fractal image compression technique models a natural image using a contractive mapping called fractal mapping in the image space. In this paper, we demonstrate that the fractal image coding algorithm is compatible with other image coding methods. In other words, we can encode only part of the image using fractal technique and model the remaining part using other algorithms. According to suc...

New devices gaining access to the Internet need to obtain multimedia content adapted to their limited capacities. Scalable formats allow to retrieve different versions of a single file by simple manipulations of the bitstream. However, prior knowledge of the data structure is required to perform these operations. In this paper, XML is used to describe the structure of a bitstream. The resulting...

The concept of offshoring of professional services first gained attention slightly over 25 years ago. At that time, US companies began to realize the cost-advantage of getting their computer software developed in India and other countries. The concept gained momentum with the advent of Internet and the availability of inexpensive communication technologies. Unrelated events, such as the need to...

The NIOS II soft core processor from Altera allows for the easy interfacing of new peripheral blocks to existing software. Using the Kakadu software implementation of JPEG2000, we have added dedicated hardware block encoders to produce an accelerated implementation. Simulation demonstrates that our simple architecture can provide a speedup of 2.55 times, compared to a pure software implementati...

In this paper we analyse the effects that JPEG and JPEG2000 compression have on subspace appearance-based face recognition algorithms. This is the first comprehensive study of standard JPEG2000 compression effects on face recognition, as well as an extension of existing experiments for JPEG compression. A wide range of bitrates (compression ratios) was used on probe images and results are repor...