An efficient shape coding scheme and its codec design

Author(s):  
Yin-Tsung Hwang ◽  
Yun-Chiang Wang ◽  
Shi-Shen Wang
Author(s):  
K. Vijayalakshmi ◽  
I.V.G Manohar ◽  
L. Srinivas

In this work, we present a CODEC design for two classes of crosstalk avoidance codes (CACs), forbidden pattern codes (FPCs) and forbidden transition codes (FTCs). Our mapping and coding scheme is based on the Fibonacci numeral system and the mathematical analysis shows that all numbers can be represented by FTF vectors in the Fibonacci numeral system (FNS). The proposed CODEC design is highly efficient, modular and can be easily combined with a bus partitioning technique. We also investigate the implementation issues and our experimental results show that the proposed CODEC complexity is orders of magnitude better compared to the brute force implementation. Compared to the best existing approaches, we achieve a 17% improvement in logic complexity. A high speed design can be achieved through pipelining. In this paper, we generalize the idea in and establish a generic framework for the CODEC design of all classes of CACs based on binary mixed-radix numeral systems. Using this framework, we propose CODECs for OLCs and FPCs with optimal code rates as well as CODECs for FOCs with near-optimal code rates.


1996 ◽  
Vol 10 (2) ◽  
pp. 205-218
Author(s):  
Henry Ker-Chang Chang ◽  
Chung-Yu Liou
Keyword(s):  

2010 ◽  
Vol 15 (2) ◽  
pp. 142-151 ◽  
Author(s):  
Wondimu Ahmed ◽  
Greetje van der Werf ◽  
Alexander Minnaert

In this article, we report on a multimethod qualitative study designed to explore the emotional experiences of students in the classroom setting. The purpose of the study was threefold: (1) to explore the correspondence among nonverbal expressions, subjective feelings, and physiological reactivity (heart rate changes) of students’ emotions in the classroom; (2) to examine the relationship between students’ emotions and their competence and value appraisals; and (3) to determine whether task difficulty matters in emotional experiences. We used multiple methods (nonverbal coding scheme, video stimulated recall interview, and heart rate monitoring) to acquire data on emotional experiences of six grade 7 students. Concurrent correspondence analyses of the emotional indices revealed that coherence between emotional response systems, although apparent, is not conclusive. The relationship between appraisals and emotions was evident, but the effect of task difficulty appears to be minimal.


1999 ◽  
Author(s):  
Barbara H. Fiese ◽  
Arnold J. Sameroff

2012 ◽  
Vol E95-B (1) ◽  
pp. 254-262
Author(s):  
Yoshitoshi YAMASHITA ◽  
Eiji OKAMOTO ◽  
Yasunori IWANAMI ◽  
Yozo SHOJI ◽  
Morio TOYOSHIMA ◽  
...  

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