The authors propose the use of hash coding to guide the global search. Given a record, they hash it to an address and the initial searching is to be started by searching records stored in that address. The authors bel...
详细信息
The authors propose the use of hash coding to guide the global search. Given a record, they hash it to an address and the initial searching is to be started by searching records stored in that address. The authors believe that their method is efficient because hashing is easy to implement and fast to execute. In other words, if the method is used, the global searching time will be very short.
The problem of optimal histogram matching is to find a transformed digital picture of a given picture, so that the sum of absolute errors between the gray level histograms of the transformed picture and the gray level...
详细信息
The problem of optimal histogram matching is to find a transformed digital picture of a given picture, so that the sum of absolute errors between the gray level histograms of the transformed picture and the gray level histogram of a reference picture is minimized. The problem is equivalent to the problem of placing k1 linearly ordered objects of different sizes one by one into k2 linearly ordered boxes with assorted sizes, such that no object can be placed into the i-th box if, for some j greater than i, the j-th box has already some object(s) placed inside there, i. e. the placement function is monotonic. The objective is to minimize the accumulated error of space left over or over packed in the boxes. The above-mentioned monotone property ensures a polynomial time solution to this problem. A tree search algorithm for optimal histogram matching is presented which has time complexity of O(k1 multiplied by k2). If the monotone property is dropped, then the problem becomes NP-complete, even if the problem is restricted to be k2 equals 2.
The paper discusses various syntactic and nonsyntactic techniques for shape analysis. The advantages and disadvantages of each technique are pointed out through examples and on the basis of results from the theory of ...
详细信息
The paper discusses various syntactic and nonsyntactic techniques for shape analysis. The advantages and disadvantages of each technique are pointed out through examples and on the basis of results from the theory of computation.
A new modular speaker recognition system AUROS consisting of a set of real-time speech analysis processors and a flexible patternrecognition software package has been used for comparative studies. The system structur...
详细信息
A new modular speaker recognition system AUROS consisting of a set of real-time speech analysis processors and a flexible patternrecognition software package has been used for comparative studies. The system structure is described and results obtained by AUROS are discussed.
By means of combining imageprocessing, character recognition and interactive computer graphics techniques a system has been developed for the acquisition of map data which is required by various urban and regional la...
详细信息
By means of combining imageprocessing, character recognition and interactive computer graphics techniques a system has been developed for the acquisition of map data which is required by various urban and regional land-use systems. The system is described.
A tutorial survey of techniques for using contextual information in patternrecognition is presented. Emphasis is placed on the problems of image classification and text recognition, where the text is in the form of m...
详细信息
A tutorial survey of techniques for using contextual information in patternrecognition is presented. Emphasis is placed on the problems of image classification and text recognition, where the text is in the form of machine and handprinted characters, cursive script, and speech. The related problems of scene analysis, natural language understanding, and error-correcting compilers are only lightly touched upon.
Some of the research topics in patternrecognition, data base management and information retrieval are reviewed. Specifically discussed are applications of the methods of patternrecognition in the solution of some im...
详细信息
Some of the research topics in patternrecognition, data base management and information retrieval are reviewed. Specifically discussed are applications of the methods of patternrecognition in the solution of some important problems in the management of large data bases.
Nuclear medicine is a speciality which attempts to measure in-vivo the biochemical and physiological processes of the human body in a non-invasive manner. This paper discusses numerical analysis and pattern recognitio...
详细信息
Nuclear medicine is a speciality which attempts to measure in-vivo the biochemical and physiological processes of the human body in a non-invasive manner. This paper discusses numerical analysis and patternrecognition methods in clinical and image research as employed in nuclear medicine.
Straight-line edge segments are often used as key features in building scene models. This paper presents techniques for extracting edge segments from a digital picture. Results of line extraction on a few outdoor scen...
详细信息
Straight-line edge segments are often used as key features in building scene models. This paper presents techniques for extracting edge segments from a digital picture. Results of line extraction on a few outdoor scenes are also presented.
A solution is given to the linear discrimination problem for more than two statistical classes, using a Generalized Fisher Criterion as distance measure. With the use of linear manifold subspace and decomposition of t...
详细信息
A solution is given to the linear discrimination problem for more than two statistical classes, using a Generalized Fisher Criterion as distance measure. With the use of linear manifold subspace and decomposition of the optimization problem into a union of simple convex constrained ones, a closed form solution for the optimal X is attained, and no numerical optimization techniques are needed.
暂无评论