Involving the Ricci curvature and the squared mean curvature, we obtain basic inequalities for different kind of submaniforlds of a Sasakian space form tangent to the structure vector field of the ambient manifold. Contrary to already known results, we find a different necessary and sufficient condition for the equality for Ricci curvature of C-totally real submanifolds of a Sasakian space form...

In a group trellis, the sequence of branches that split from the identity path and merge to the identity path form two normal chains. The Schreier refinement theorem can be applied to these two normal chains. The refinement of the two normal chains can be written in the form of a matrix, called the Schreier matrix form, with rows and columns determined by the two normal chains. Based on the Sch...

Motion estimation has been shown to help significantly in the compression of video sequences. However, since most motion estimation algorithms require a large amount of computation, it is undesirable to use them in power constrained applications, such as battery-operated wireless video encoders. This paper describes a new compression algorithm, termed networkdriven motion estimation (NDME), whi...

We present Laneformer, a conceptually simple yet powerful transformer-based architecture tailored for lane detection that is long-standing research topic visual perception in autonomous driving. The dominant paradigms rely on purely CNN-based architectures which often fail incorporating relations of long-range points and global contexts induced by surrounding objects (e.g., pedestrians, vehicle...

INTRODUCTION High-accuracy rotary encoders are required for rotational axis position measurement in ultraprecision manufacturing and measurement equipments. A typical rotary encoder is made of a glass disk with a fine grating pattern and a scanning read head unit. Digital pulse trains are output from the read head to represent the disk rotary position. The angular measurement accuracy of such a...

Algorithmically optimized AVC (MPEG-4 part 10 / H.264) video encoder with parallel processing of data is presented in the paper. The paper reveals the architecture of the proposed encoder together with the description of the applied software optimization techniques. Conducted experiments show exactly the degree of parallelization of computations in the encoder and the compression performance of...

The optimal coding problem in two-user white Gaussianchannels with feedback is discussed. The messages are taken as Gauss-Markov processes. The optimal decoder pair and the optimal linear encoderpair are developed. A nonlinear class (additive feedback type) of encoderpairs in which the optimal linear encoder pair is optimal is presented.

A complexity management approach is proposed for an H.264 encoder running in a processor/power constrained environment. The objective is to maintain smooth video frame rate whilst ensuring that the frame quality is not degraded unacceptably. Subjective results show that the managed complexity encoder outperforms the normal encoder (where frames are dropped when processing power is limited) cons...