Visual communications over wireless networks require the efficient and robust coding of video signals for transmission over wireless links having time-varying channel capacity. We compare several schemes for encoding video data into two priority streams, thereby enabling the transmission of video data over wireless links to be switched between two bit rates. An H.261 (p 64) algorithm is modifie...

In this paper, we propose a novel adaptive arithmetic coding method that uses dual symbol sets: a primary symbol set that contains all the symbols that are likely to occur in the near future and a secondary symbol set that contains all other symbols. The simplest implementation of our method assumes that symbols that have appeared in the previously are highly likely to appear in the near future...

To explore the influence of long-non coding RNA-H19/microRNA-140-5p/Wnt1 axis on osteogenic differentiation in bone marrow mesenchymal stem cells. First, we used dual-luciferase reporter gene detection to verify coding-H19/miRNA-140-5p/Wnt1 regulatory targeting relationship. Then coding-H19 was overexpressed or silenced cells and then coding-H19, microRNA-140-5p Wnt1 expression were assessed us...

Convolutional sparse coding (CSC) is an important building block of many computer vision applications ranging from image and video compression to deep learning. We present two contributions to the state of the art in CSC. First, we significantly speed up the computation by proposing a new optimization framework that tackles the problem in the dual domain. Second, we extend the original formulat...

In this paper, a novel wavelet-based multiple description coding (MDC) is proposed with dual decomposition (DD) and cross packetization (CP). Through dual decomposition, each description has two parts, the primary and the complementary. The former contains the structural information, including the positions and signs of significant coefficients, whereas the latter contains the residual data, wh...

A CMOS image sensor architecture for primal-dual coding (PDC), the developed image sensor and the sensing side of the system, as well as preliminary sensor test results are presented in this paper. The architecture proposed in this work uses pixels with the embedded 2-bit latches which are responsible for the pre-loading and storing of the exposure codes. The subsequent exposure code (mask) can...

We describe complementary iconic and symbolic representations for parsing the visual world. The iconic pixmap representation is operated on by an extensible set of “visual routines” (Ullman, 1984; Forbus et al., 2001). A symbolic representation, in terms of lines, ellipses, blobs, etc., is extracted from the iconic encoding, manipulated algebraically, and re-rendered iconically. The two represe...

This work investigates the use of the 3D dual-tree discrete wavelet transform (DDWT) for video coding. The 3D DDWT is an attractive video representation because it isolates image patterns with different spatial orientations and motion directions and speeds in separate subbands. However, it is an over complete transform with 4:1 redundancy when only real parts are used. We apply the noise-shapin...