An improvement of the majority gale algorithm suitable for grey scale morphological operations is presented in the Letter. The redundancy of temporal signals led to a simplified hardware implementation. It is shown th...
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An improvement of the majority gale algorithm suitable for grey scale morphological operations is presented in the Letter. The redundancy of temporal signals led to a simplified hardware implementation. It is shown that maximin operators can be computed by the same circuit. A new pipelined systolic array architecture based oil this circuit is illustrated for dilation/erosion operations.
This paper presents the design and VLSI implementation of a new automated visual inspection system based on a cellular automaton architecture, suitable for circular object inspection. Cellular Automata (CA) transform ...
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This paper presents the design and VLSI implementation of a new automated visual inspection system based on a cellular automaton architecture, suitable for circular object inspection. Cellular Automata (CA) transform the area of the object of interest into a number of evolution steps in the CA space. The proposed technique does not require the extraction of image features, such as boundary length and total area, which are computationally expensive in other methods. The die size dimensions of the chip, for a 16 x 16 pixel image, are 3.73 mm x 3.09 mm = 11.52 mm(2) and its maximum frequency of operation is 25 MHz. Experimental results using computer-generated images, as well as real images obtained and processed through a commercial vision system, showing the suitability of the proposed hardware module for detecting circular objects, are also presented. Targeted applications include inspection tasks (accept/reject operations) of circular objects, such as tablets in the pharmaceutical industry, and detection of uncoated areas, foreign objects and level of bake in the confectionery and food industry.
SHE (Software/Hardware engineering) is an object-oriented analysis, specification and design method for complex reactive hardware/software systems. SHE is based on the formal specification language POOSL and a design ...
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A clustering-based approach to the separation of text from mixed text/graphics documents is presented. The approach starts from the grouping of connected components. Clustering is employed at three critical stages to ...
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In temporal databases there are situations where multiple values of the same data item have overlapping validity times. In addition to the common case of multi-valued properties, there are several possible semantics t...
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In temporal databases there are situations where multiple values of the same data item have overlapping validity times. In addition to the common case of multi-valued properties, there are several possible semantics to multiple values with overlapping validity times of the same data item. We refer to such data items as having simultaneous values. This paper presents a polynomial algorithm for efficient handling of simultaneous values in a database with temporal data dependencies-integrity rules that define relationships among values of different dated items in a temporal database. The algorithm is demonstrated using a case study from the game theory area. An implementation of the algorithm is integrated in a prototype of a temporal active database.
This paper concerns the decentralized design for a MIMO system. The decentralized design means the design of the combination of a pre-compensator and decentralized controllers. An advantage of this idea is that we can...
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This paper concerns the decentralized design for a MIMO system. The decentralized design means the design of the combination of a pre-compensator and decentralized controllers. An advantage of this idea is that we can regard the decentralized controllers as SISO controllers, if the pre-compensator sufficiently decouples the plant. As a result, it is easy to comprehend the relationship between the controllers and specifications. However, it may occur that the structural restriction of the decentralized controllers results in a poorer performance than a centralized controller. This paper shows that the decentralized design proposed realizes a performance equal to the centralized one in the mixed sensitivity problem based on certain assumptions.
In this paper, a design of a test processor ASIC employing a probabilistic approach is presented. The test processor chip is computer programmable. It consists of linear feedback shift register (LFSR) which can select...
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In this paper, a design of a test processor ASIC employing a probabilistic approach is presented. The test processor chip is computer programmable. It consists of linear feedback shift register (LFSR) which can select one of 16 polynomials and set user programmable need for every test set, signature analyzer and 3 built-in RAMs and other control circuitry. It is capable of generating random numbers and applying them to the circuit under test (CUT) and then retrieve the responses from the CUT. It can generate a signature by compressing the response data and detect circuit faults by comparing this signature with that of a good CUT. This ASIC can be used to design a low cost IC tester of reliable performance.
In an attempt to propose a robust method for understanding natural language (NL) interface commands, a scheme is proposed that infers intentions from an indirect speech-act that does not express users' real intent...
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In an attempt to propose a robust method for understanding natural language (NL) interface commands, a scheme is proposed that infers intentions from an indirect speech-act that does not express users' real intentions explicitly. This method classifies the real intentions of the indirect speech-act into: 1) refusal;2) reversal;3) restriction;4) benefit;and 5) disability. Further, concepts are abstracted for operations, e.g., displaying, moving, and deleting informationsystems;and constructing the operation knowledge base. This knowledge based comprises operational concepts and the relationships between them. These relationships are assigned the foregoing classifications for intentions. In addition, we construct the knowledge base of objects for the target of operations, e.g., files, figures, strings. This knowledge base contains the relationships: a) antonym;b) exclusive;c) part-of, between the objects;and uses these relations to infer the transitions between the objects. An algorithm is the proposed to infer concepts for operations and concepts for target objects of operations that may represent the user's actual intentions. This proposal scheme was tested with requests on UNIX and a commercially available Japanese Word Processor. The system successfully inferred the intentions for approximately 80 percent of the user's indirect speech-act.
This paper presents the design and VLSI implementation, on a single chip, of a new real-time colour space converter, which performs the transformation of the RCB colour coordinates to the intensity, hue and saturation...
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This paper presents the design and VLSI implementation, on a single chip, of a new real-time colour space converter, which performs the transformation of the RCB colour coordinates to the intensity, hue and saturation (IHS) colour space. This high speed VLSI chip is designed to work at 13.3 MHz and can process high resolution colour images of up to 697 pixels per horizontal line. Its minimum rate of operation is 133 MIPS. The high speed of operation was achieved by pipelining the data in a vector fashion. The chip was implemented using a DLM, 1.0 mu m, N-well, CMOS process provided by European Silicon Structures and the die size dimensions for the chip are 5.669 mm x 6.144 mm = 34.830 mm(2). The chip is intended to be used as the front end of colour machine vision systems in inspection tasks and in autonomous applications, where the need for short processing times is crucial. Finally, simulation results exhibiting the usefulness of the IHS colour space transform using the proposed ASIC and real colour image data are also presented.
A new image enhancement technique using the Intensity, Hue and Saturation (IHS) colour space is presented in this letter Experimental results illustrating the enhancement capabilities of the proposed technique are giv...
A new image enhancement technique using the Intensity, Hue and Saturation (IHS) colour space is presented in this letter Experimental results illustrating the enhancement capabilities of the proposed technique are given. Comparative examples of the proposed technique to the grey level histogram equalisation technique are also included.
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