ISSN:1124-318X    

DOI:10.1002/ett.4460030602

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:1124-318X    

DOI:10.1002/ett.4460030603

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:1124-318X    

DOI:10.1002/ett.4460030604

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:1124-318X    

DOI:10.1002/ett.4460030605

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:1124-318X    

DOI:10.1002/ett.4460030606

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractMultimedia personal terminals are key elements in the full communication process. Basically, they have to efficiently encode multimedia signals and interconnect through transmission networks. The paper gives an up‐to‐date overview of the standards which are involved in both functions, emphasizing the still and moving picture standards, JPEG, JBIG, MPEG, and networks with a definite multimedia orientation, ISDN and IVDLAN. Finally, several issues are raised, which are important for the future impact of multimedia personal termin

ISSN:1124-318X    

DOI:10.1002/ett.4460030607

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractThis paper focuses on the possibilities offered by intelligent terminals applied to multisensor image data processing. The state of the art of remote sensing and its future developments are briefly analyzed in order to underline the need of an intelligent use of the large amount of data that will be available in future years. Data fusion is introduced as an interesting technique both to combine data collected by remote sensors and to extract the information which is not available from each separate informative channel. Artificial neural networks are presented as a powerful tool to be used in data fusion processing because of their capability to process data without any a priori information of the data set. An example of neural network processing on multisensor airborne data is given in order to show the effective possibility offered by an intelligent terminal in high level processing of multisensor data.

ISSN:1124-318X    

DOI:10.1002/ett.4460030608

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractThis communication describes the High‐Performance Terminal of the ESPRIT II Factory Customer Premise Network project. In the first section, a brief description of the network architecture is given, showing the function of this terminal. It is shown that it is expected to integrate Audio‐Signal Processing up to the level of the automatic recognition of acoustic signatures, and Image processing up to feature extraction and image compression. The second section is devoted to the description of the signal processing algorithms, together with some relevant results of the recognition procedure. The third section gives an insight of the image processing algorithms, with a special attention paid to their 3‐D capab

ISSN:1124-318X    

DOI:10.1002/ett.4460030609

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractThree dimensional image processing algorithms are highly time consuming. For the study of different algorithms on different parallecomputers, we need a common, portable programming model. This article describe our common programming model and the results we obtain on two volumic image processing algorithms.

ISSN:1124-318X    

DOI:10.1002/ett.4460030610

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractOne of the main techniques for the analysis of image sequences is the optical flow computation. The optical flow is a vector field representing the apparent motion, on the image, of the projected points of the objects in the scene. Many algorithms have been developed to compute the optical flow. In this paper one of these algorithms is reviewed, the performance enhanced and a possible parallel implementation presented. The main advantage of the resulting algorithm is its good behavior in presence of noise or motion boundaries; this is obtained by means of a local technique which doesn't require global optimization and by applying a median filter to restore the vector field. Furthermore a pyramidal approach is used to increase the range of interframe displacements computable by the algorithm. To enhance the time performance a parallel implementation on a network of transputers has been studied; a theoretical analysis of the efficiency of the implemented architecture is discussed and its agreement with the experimental results is reported.

ISSN:1124-318X    

DOI:10.1002/ett.4460030611

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY