Multiple frame prediction has proved successful in increasing the performance of motion compensated video coders. Region-of-interest (ROI) coding in conjunction with a dual frame predictor can lead to interesting design choices on how to allocate the available bitrate among the frame regions. In this work, we tackle the problem of applying ROI coding on aerial imagery and then on standard video...

This paper aims to answer two questions. The first is how screen captures in software manuals should be used to support learning. Four functions of screen captures in software manuals are presented. Three studies report the influence of these functions on the effectiveness and efficiency of the learning process. The second question is how users of visual manuals process combinations of text and...

Self-dual codes have been received great attention by researchers since the beginning of the coding theory. In this work, some construction methods for this kind of codes are composed which produce new self-dual codes from self-dual codes of smaller lengths. A special one of these methods that is called recursive algorithm is also mentioned. For the binary case, it was shown that recursive algo...

As a result of their applications in network coding, space-time coding, and coding for criss-cross errors, matrix codes have garnered significant attention; in various contexts, these codes have also been termed rank-metric codes, space-time codes over finite fields, and array codes. We focus on characterizing matrix codes that are both efficient (have high rate) and effective at error correcti...

We consider source coding with fixed lag side information at the decoder. We focus on the special case of perfect side information with unit lag corresponding to source coding with feedforward (the dual of channel coding with feedback) introduced by Pradhan [8]. We use this duality to develop a linear complexity algorithm which achieves the rate-distortion bound for any memoryless finite alphab...

We investigate the MIMO broadcast channel in the high SNR regime when linear filtering is applied instead of dirty paper coding. Using a user-wise rate duality where the streams of every single user are not treated as self-interference as in the hitherto existing stream-wise rate dualities for linear filtering, we solve the weighted sum rate maximization problem of the broadcast channel in the ...

INK4a/ARF tumor suppressor locus encodes two protein products, INK4a and ARF, essential for controlling tumorigenesis and mutated in more than half of human cancers. There is no resemblance between the two proteins: their coding regions are assembled by alternative splicing of two mutually exclusive 5' exons into a constitutive one containing overlapping out-of-phase reading frames. We show tha...