Hitachi, Ltd.

Shiro Nonaka

Yasumasa Kawashima

Tomotoshi Ishida

Shinji Tokumasu

Munetoshi Unuma

Takayuki Ishikawa

Shigeru Oho

Norihiro Nakajima

Yoshiaki Usami

Kenichi Anjyo

Toshiaki Yoshinaga

Misato Nio

Yoshiko Tanaka

Motomi Odamura

Kumiko Itoh

Kumiko Ito

Yoshio Kunitomo

An object of the present invention is to provide a method, an apparatus and a system for automatically recognizing motions and actions of moving objects such as humans, animals and machines. Measuring instruments are attached to an object under observation. The instruments measure a status change entailing the object's motion or action and to issue a signal denoting the measurements. A characteristic quantity extraction unit extracts a characteristic quantity from the measurement signal received which represents the motion or action currently performed by the object under observation. A signal processing unit for motion/action recognition correlates the extracted characteristic quantity with reference data in a database containing previously acquired characteristic quantities of motions and actions. The motion or action represented by the characteristic quantity with the highest degree of correlation is recognized and output.

Method, apparatus and system for recognizing actions

An object of the present invention is to provide a method, an apparatus and a system for automatically recognizing motions and actions of moving objects such as humans, animals and machines. Measuring instruments are attached to an object under observation to measure a status change entailing the object's motion or action and to issue a signal denoting the measurements. A characteristic quantity extraction unit extracts a characteristic quantity from the measurement signal received which represents the motion or action currently performed by the object under observation. A signal processing unit for motion/action recognition correlates the extracted characteristic quantity with reference data in a database containing previously acquired characteristic quantities of motions and actions. The motion or action represented by the characteristic quantity with the highest degree of correlation is recognized and output.

A geometric object display method and apparatus and a computer-readable storage medium storing a geometric object display process program, capable of displaying the image of a composite geometric object such that the outline of the object can be grasped by the user at an earlier stage. Composite geometric element data input from an input unit is divided into a plurality of geometric element data sets of each part by a sub-grouping unit of a computing unit. The display sequence of the sub-grouped geometric element data is scheduled by a sequence scheduling unit, and the sequenced geometric element data is output by an output unit such as a display device. The outline of a composite geometric object can be grasped at an earlier stage when only a fraction of geometric element data is displayed.

Method and apparatus for displaying CAD geometric object and storage

To edit data, a plurality of automatic processes are defined. Icons representing those processes may be displayed in a library frame of a display of the data editing system. The user may then select one or more of those processes by moving the corresponding icon from the library frame to an editing frame which also displays an image representing the data to be edited. When the user edits the data, each selected automatic process monitors the relationships between the data wherein, the corresponding icon provides a visual indication of the status of the automatic process. Preferably the progress of the automatic process is indicated by changes in the appearance of the corresponding icon. A generation frame may be provided on the display so that the user can generate new processes, represented by a corresponding icon, which may then be moved to the library frame or the editing frame. Icons may be grouped to permit simultaneous selection of a group of corresponding automatic processes.

Data editing method and apparatus therefor

A curved surface generated on a closed curve is expressed by an equation of a film having a physical property. The film is considered as a virtual elastic film generated on the closed curve. A curved surface is generated on the closed curve through changing the shape of the elastic film by operator's setting of both the mechanical force of the elastic film and the normal direction of the elastic film on the closed curve.

Curved surface generating method and apparatus therefor

The design work is to perform various investigation for design data while displaying it on a display screen to make subdivision and concretization thereof. Thus, the design work is a combination of a plurality of design stages in general. Accordingly, the design work is described for each design stage to improve work efficiency. Actually, a design supporting apparatus includes a device for setting the design stages clearly, a device for preserving the setting, a device for setting relation between the design stages, a device for deciding the design stages dynamically, and a device for relating the design data to the design stages for preservation thereof in addition to processing and editing function of the design data provided in the design supporting apparatus.

Design supporting apparatus and method for performing design work at

A pattern processing method is provided which performs the following steps with regard to a region in an n-dimensional space: providing a procedure (relative expression procedure) for generating relative positional data of any desired point in the n-dimensional space with respect to the region by the use of a series of data determining the region (the relative positional data including data indicating whether the point is inside or outside the region, the distance from the point to the boundary of the region, etc.), thereby identifying the region with the procedure, and thus unitarily determining the region; generating a relative expression procedure for a new region from the relative expression procedure(s) of one or more regions given the procedures, the relative expression procedure for the new region being obtained by configurationally processing and editing the one or more relatively expressed regions, thereby relatively expressing the new region; and expressing configurational characteristics of each relatively expressed region itself by the use of the relative expression procedure of the region. Thus, the processing of patterns in an n-dimenaional space can be unitarily effected on the basis of the one and only concept, that is, the relative expression procedures, without deponding upon the configuration of each particular region as being an object of processing so that the pattern processing method itself is simplified.

Pattern processing method

An area set operation apparatus effecting a set operation of a plurality of n-dimensional areas positioned in a n-dimensional finite space, wherein n (n.gtoreq.2) is a natural number, includes functions of inputting a plurality of data defining a n-dimensional area positioned in a n-dimensional finite space; repeatedly processing sequential order division of the n-dimensional space to generate a plurality of divided spaces, division of the area to generate a plurality of divided areas corresponding to the divided spaces, and generation of data defining each divided area in each divided space from the data defining the area, until the data defining the area satisfy conditions of data determining areas each including an empty part as represented and a full part by a plurality of inequality expressions, wherein the expressions are related to each other, conditions of data representing empty areas and conditions of data representing full areas, and effecting a set operation of the plurality of divided areas by executing a set operation of the data defining the divided areas corresponding to the divided spaces.

Area set operation apparatus

An elimination work simulator has not only a difference operation processor to attain a difference between work object space data and work space data but also a product operation processor to execute a product operation therebetween. Elimination work space data outputted from the product operation processor is sequentially stored; and at least the latent data of the work object space data outputted from the difference operation processor is stored so as to minimize the amount of data to be preserved. When displaying the work object space data, an animation displaying thereof can be conducted in the same or opposite direction of the order of the work operations by appropriately using elimination work space data and work object space data.

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Hitachi, Japan

Shiro Nonaka