Showing papers by "Defence Research and Development Laboratory published in 1988"
TL;DR: Les equations non lineaires sont calculees a partir de considerations energetiques and la force d'etirement non lineaire est formulee en termes de deplacement transversal seul as mentioned in this paper.
Abstract: Les equations non lineaires sont calculees a partir de considerations energetiques et la force d'etirement non lineaire est formulee en termes de deplacement transversal seul
47 citations
TL;DR: In this paper, various finite element formulations of large amplitude free vibrations of beams with immovably supported ends are discussed and numerical results of the analytical approach are seen to be in good agreement with some of these formulations.
20 citations
9 citations
18 Jan 1988
TL;DR: This paper deals with the real time implementation of an image registration algorithm, for an application onboard a flight vehicle, where there are limitations on system power and space, in addition to the processing time constraint.
Abstract: This paper deals with the real time implementation of an image registration algorithm, for an application onboard a flight vehicle, where there are limitations on system power and space, in addition to the processing time constraint. Two images must be registered to find the similarity between them or to find the object motion in a scene. Real time in this application means an update time of 1/30th of a second i.e., at TV frame rate. The direct method using the normalised correlation function is chosen for implementation considering both the performance and the computational complexity. A hybrid approach using dedicated hardware for computation intensive part of the algorithm and a microprocessor based subsystem for other functions is adopted as a compromise between flexibility and efficiency. To meet the time constraint parallel pipelined architecture is used. To meet the low power requirement mostly CMOS devices are used. To meet the space constraint specific integrated circuits are being planned. A specific example of implementation is given.
2 citations
TL;DR: An effective method of recognizing the information involves two way search giving the weightages to each and the two values are combined to produce a match factor for recognition of information.
Abstract: A variety of algorithms are existing to retrieve the information by means of furnished keys'. As suggested by Nakatsu N. et al . algorithm for the LCS problem can be used to find string which contain some given words or words similar to them. Some such LCS algorithms with their time responses are discussed 2-6 This paper also describes an effective method of recognizing the information. The method involves two way search giving the weightages to each. Finally the two values are combined to produce a match factor for recognition of information. Its application to codification in inventory system is discussed.
1 citations