This invention relates to an object recognition apparatus. This apparatus comprises an antenna which emits transmission beams toward a plurality of directions; a receiving circuit which receives reflected signals of the transmission beams from predetermined directions; a distance and direction calculation circuit which calculates distance and direction to objects reflecting the transmission beams based on the transmission beams and the reflected signals; an object pattern storage unit which stores range direction patterns of reflected signals obtained in advance with respect to predetermined objects; an object recognition circuit which compares range direction patterns of the reflected signals received by the receiving circuit with respect to the predetermined directions, with the range direction patterns stored in the object pattern storage unit, and which recognize that a pair of reflected signals from two neighboring directions are signals reflected by the same object.

Object recognition apparatus

The present invention discloses a method to represent the data into realistic, hands-on 3D images using horizontal perspective. The present invention horizontal perspective representation takes the raw data, information and knowledge and renders them into horizontal perspective 3D images. The horizontal perspective images are projected into the open space with various peripheral devices that allow the end user to manipulate the images with hands or hand-held tools. The raw data, information and knowledge can be in the form of file format, 3D file format, database, digital books including texts and pictures or drawings.

Horizontal Perspective Representation

A biofeedback eyewear system comprising stereo lenses, binaural audio and plurality of electrodes for biofeedback devices is disclosed. The stereo lenses comprise different left and right lenses such as 0° and 90° polarized lenses, allowing the user to view 3D images. The binaural audio comprises left and right headphones, allowing the user to hear 3D sound. The electrodes for biofeedback devices is preferably incorporated to the eyewear handles, bridge or frame, allowing the inputs of user's physical and mental status to a computer system. The disclosed biofeedback eyewear system forms a two-way communication between a user and a computer system.

Biofeedback eyewear system

In an automatic focus control device of a camera there are provided defocus amount calculation means for calculating a defocus amount for a predetermined focus plane of a photographic lens in the camera on the basis of the electric signal generated by a light receiving means, comparing means for comparing the obtained value on the basis of the calculated defocus amount with a reference value, control means controlling driving speed of the photographic lens by the lens driving means in response to the comparison result of a comparing means, photographic condition setting means for setting the photographic condition and reference value setting means for setting said reference value in response to the set photographic condition.

Automatic focus control device

Presenting a view based on a virtual viewpoint in a three dimensional (3D) scene The 3D scene may be presented by at least one display, which includes displaying at least one stereoscopic image of the 3D scene by the display(s) The 3D scene may be presented according to a first viewpoint A virtual viewpoint may be determined within the 3D scene that is different than the first viewpoint The view of the 3D scene may be presented on the display(s) according to the virtual viewpoint and/or the first view point The presentation of the view of the 3D scene is performed concurrently with presenting the 3D scene

Presenting a View within a Three Dimensional Scene

PURPOSE:To automatically focus the lens of a camera on a specific object after the direction of the camera is moved to the object only, by providing a means which changes the depth of field and another means which detects the location of an object having a specific feature amount by calculating feature amounts of objects. CONSTITUTION:The image of an object 1 is picked up under a condition where a diaphragm mechanism 8 is stopped in accordance with the control from a control section 13 and the inputted light quantity is photoelectrically converted by a sensor 4 and inputted to a feature extracting section 9. When, for example, areas of individual parts are designated as the feature amount for image pickup, the areas of individual parts are calculated at the feature extracting section 9. If the area of a desired object is designated from an operating section 13a under this condition, a camera drive control section 10 moves the camera to the direction of the object. Then the diaphragm mechanism 8 is set to a released condition and the distance from the lens 2 to the desired object is calculated at a distance calculating section 6. After calculation, a lens drive control section 7 moves the lens 2 by operating a lens driving motor 5 so that the lens 2 can be focused on the desired object.

Automatic focusing device

A system having a relative coordinate input unit for inputting relative coordinates of an object to a viewer point, a data storage unit for storing plural pieces of data of attribute information (audio information, video information, etc.) of the object according to plural sets of relative coordinates corresponding to the viewer point, and a data preparing unit for reading out and delivering the data of attribute information on the object corresponding to the relative coordinates according to the inputted relative coordinates, in which the attribute information given by the object to the viewer point corresponding to the relative position of the object to the viewer point is presented in real time if the object moves very fast. The data preparing unit, when receiving the relative coordinates of the object to the viewer point from the relative coordinate input unit, converts the inputted relative coordinates into an address showing a region in which the data of the corresponding attribute information is stored, delivers the address to the data storage unit, and reads out the data of desired attribute information according to the input relative coordinates.

Attribute information presenting apparatus and multimedia system

A pattern recognition processing system in which variations in a character, pattern or the like, especially in a handwritten one, are suppressed to extract its invariable characteristics, ensuring accurate recognition of the character, pattern or the like. The pattern to be recognized is divided into circumscribed quadrangular areas and scanned in horizontal and vertical directions to extract reflection segments between the vertical frames of the circumscribed quadrangular areas and particular segments between adjacent ones of pattern strokes. Further, endpoints of these reflection and particular segments are checked in directions across the scanning directions to extract those endpoints which are not blocked by the pattern strokes, and the corresponding positions of the co-ordinates of these endpoints on a figure frame in the directions across the scanning directions are encoded to extract characteristics of contours of the pattern to be recognized.

Pattern recognition processing system

PURPOSE: To display the result of recognition by displaying a character in a form in response to the kind of character to discriminate easily a different character of same form. CONSTITUTION: A character described in a form DC is formed into a video signal via a scanning section 1, a feature is extracted at a recognition section 3, the feature is collated with the feature of each character of a dictionary section 2 and then the character is recognized. In this case, plural characters are selected with the order in response to the similarity of the feature and the corresponding character code is fed to a character type decision section 5 and the kind of character is decided by using a dictionary section 4. Then the character kind and a character code are stored in a memory 6. A control section 7 converts the character code of the memory 6 into a character pattern, which is displayed on a display section and the character type is converted into a corresponding identification signal, which is displayed under the corresponding character. COPYRIGHT: (C)1985,JPO&Japio

Multi-kind character recognizing device

PURPOSE: To reduce the number of collation times with a cubic dictionary and to attain a quick retrieval even if the direction of an input object is unknown by providing an appearance dictionary. CONSTITUTION: An observation circuit 1 projects an unknown object at two-dimensional coordinates, and a line drawing extraction circuit 2 extracts a line segment corresponding to the ridge line of the object and stores said segment in a picture memory 3. A collation circuit 7 refers to the line drawing read out of the memory 3 and plural line drawings stored in the appearance dictionary 8, and selects candidates whose polygonal shape and connection relation are the same as appearance. A projection conversion circuit 5 reads areas corresponding to the appearance candidates out of the dictionary 8, and projects three-dimensional data stored in the cubic dictionary 6 on a two-dimensional plane corresponding to these areas. A collation circuit 4 collates the two-dimensional projected image read out of the memory 3 with that outputted from the circuit 5. If they are equal, they are unsidered to be a category which the dictionary 6 has to retrieve, and additional information is outputted. COPYRIGHT: (C)1987,JPO&Japio

Eiichiro Yamamoto

Papers

Automatic focusing device

Attribute information presenting apparatus and multimedia system

Pattern recognition processing system

Multi-kind character recognizing device

Object retrieval system