Hitachi, Ltd.

Other

Xanavi Informatics Corporation

Nissan Motor Company Limited

Hitachi Computer Peripherals Co., Ltd.

Hiroshi Shojima

Soshiro Kuzunuki

Yasushi Fukunaga

Masaki Miura

Yoshinori Endo

Motoki Hirano

Toshifumi Arai

Toshio Fujiwara

Toshimi Yokota

Toshimi Mifune

Junko Mori

Norimasa Kishi

Masaki Watanabe

Hiroyuki Satake

Keiko Gunji

Kaoru Harada

Tetsumori Aikawa

Takeshi Shima

Kotaro Hirasawa

Yoshihito Sato

Tadaaki Kitamura

Kazunori Takahashi

Takayuki Iino

Takanori Yokoyama

Masaya Itoh

Toshihiko Matsuda

Hiromasa Fujii

Toshio Takekoshi

Yasuo Morooka

Toshio Tanaka

Masaaki Kitajima

Keisuke Nakashima

Yoshiki Kobayashi

Shinichi Kawada

Kazuyoshi Koga

Shinichi Shinoda

Kazuo Aisaka

Tooru Numata

Chieko Onuma

Hisao Oodawa

Hideki Sakao

Kazuki Nakashima

Yasuhiro Uchida

Tomo Yashiki

Toshifumi Yokota

Masahiro Oikawa

It is possible to compatibly set multiple 'dropout' color ranges and 'non-dropout' color ranges and uniquely determine a dropout boundary. An object of the present invention is to greatly conserve maintenance cost of adding a new dropout form after apparatus operations. A conventional technology aims at assuring relation to a predetermined color region, determining the presence or absence of contention, or uniquely settling a dropout boundary. The present invention provides a means for supplying levels to a &#x201c;dropout&#x201d; color range and a &#x201c;non-dropout&#x201d; color range. A registered color range histogram can be quasi-three-dimensionally visualized so that an operator can make adjustment by viewing a contention determination result and an image.

Dropout color processing method and processing apparatus using same

An image monitoring system including: an image data acquisition unit for taking in video signals from a camera to acquire image data; and an image recognition unit for carrying out image recognition processing using an inputted image obtained from the image data acquisition unit, wherein the image recognition unit includes: a reference image registration means for registering a reference image selected from among the inputted images; a motion detection means for acquiring motion detection information from the inputted image; an image blur detection means for detecting image blur by comparison of the reference image with the inputted image for edge strength; a similarity computation means for computing a similarity between the reference image and the inputted image; and a camera anomaly detection unit for determining any anomaly in the camera from the motion detection information, the image blur and the similarity, wherein the comparison for edge strength and the computation for the similarity are carried out respectively for an image region excluding a region of a moving object extracted by the motion detection means.

Image monitoring system

In an image monitoring system, an image data acquisition unit takes in video signals from a camera to acquire image data. An image recognition unit carries out image recognition processing using an inputted image obtained from the image data acquisition unit. A reference image registration unit registers a reference image selected from among the inputted images. An image blur detection unit detects a difference in image blur between the reference image and the inputted image. A similarity computation unit computes a similarity between the reference image and the inputted image. A camera anomaly detection unit detects any anomaly in the camera from the difference in image blur and the similarity.

In order to detect abnormal objects with a low-cost arrangement at high speeds while avoiding unwanted influence of variations of a light source and/or regularly vibrating objects in the environment concerned, there is provided a block data calculation unitinputted from a camera into blocks, an object candidate extraction unitwhich compares image data of a frame to be processed and the immediately preceding frame in units of blocks to thereby extract an abnormal object candidate in accordance with the presence or absence of edges and a longitude-to-lateral edge ratio change rate, and an object judging unitfor determining or 'judging' whether the abnormal object candidate is a true abnormal object, wherein it is an abnormal object where movement of the abnormal object candidate is traceable for a prespecified length of time period.

Image monitoring method, image monitoring apparatus and storage media

In a navigation system using a bird's-eye view display mode, map data on a plan view map are subjected to a perspective projection conversion to obtain drawing data on a bird's-eye view map. An input of the position of a view point is accepted, and a projection plane for a bird's-eye view is determined so that the display positions of the two points which have been subjected to perspective-projection conversion are coincident with predetermined positions. Alternatively, an input of a scale is accepted, so that the display positions of the two points after the perspective projection conversion are coincident with predetermined positions and the drawing scale is coincident with the input scale. In a further alternative, an input of the projection angle is accepted, and the projection plane is determined on the basis of the projection angle and the position of the view point.

Bird's-eye view forming method, map display apparatus and navigation system

A map display apparatus includes a map data memory which stores map data necessary for plotting a map of a predetermined region; a map display which reads map data out of the map data memory and plots a bird's-eye view display by projecting the map data read out from the map data memory onto a projection plane which makes a projection angle with a plane of the map data read out from the map data memory, the projection angle being greater than 0&deg; and less than 90&deg;, the bird's-eye view display including identifying marks which identify items in the bird's-eye view display; and an identifying mark overlap preventer which prevents identifying marks from overlapping one another in the bird's-eye view display.

Map display apparatus

In a navigation system using a bird's-eye view display mode, map data on a plan view map are subjected to a perspective projection conversion to obtain drawing data on a bird's-eye view map. In this case, an input of the position of a view point is accepted, and a projection plane for a bird's-eye view is determined on the basis of the coordinates of a current position and a destination and the position of the view point so that the display positions of the two points which have been subjected to perspective-projection conversion are coincident with predetermined positions. Alternatively, an input of a scale is accepted, and the position of the view point and the projection plane are determined on the basis of the coordinates of the two points and the scale so that the display positions of the two points after the perspective projection conversion are coincident with predetermined positions and the drawing scale is coincident with the input scale. Or, as a further alternative, an input of the projection angle is accepted, and the projection plane is determined on the basis of the projection angle and the position of the view point.

An information exchange system is capable of realizing useful information exchange both for the service provider located along the road and providing services and the vehicular driver, by effectively using limited communication capacity of the road-vehicle radio communication. The information exchange system has a vehicle-mounted unit and a road-side unit providing information to the vehicle-mounted unit using a road-vehicle radio communication. The vehicle-mounted unit includes receiving unit receiving information transmitted from the road-side unit through a radio communication and transferring unit transferring at least a part of a content of the received information to a vehicular occupant. The road-side unit including storage unit storing information to be transmitted to the vehicle-mounted unit and transmitting unit transmitting information to the vehicle-mounted unit through the radio communication. The storage means stores at least information relating to a service provider where a service is provided at the location thereof. The road-side unit also includes editing unit editing information stored in the storage means on the basis of a relative position between the service provider and a communication region of the transmitting means and generating an edited information to be transmitted from the transmitting means.

Information exchange system

A display device has a touch pad and a display lamintated together to form a screen, That screen is connected to a controller which processes signals generated by physical contact with the touch pad and activates the display to display e.g. characters input by a stylus to the touch pad. The display device is connected to an external device (e.g. a computer) and video signals from the external device are received via a video input and may be displayed on the display. Also the controller can transmit to the external device via an output. Thus, the display can display simultaneously information from the external device and information input to the touch pad. If the controller is arranged to carry out character recognition, the display device may then act as a hand-writing input device, with the handwritten information being incorporated with information in the external device and displayed.

Display device and display system incorporating such a device

The present invention relates to a multi-user pattern data processing system configured for various kinds of patterns, such as characters, to learn efficiently and effectively. The present invention comprises an input arrangement 1 having patterns entered therein from a plurality of users, a dictionary 2 having patterns and attributes of the patterns belonging thereto defined therein, a recognizing arrangement 4 that receives the entered pattern and a group attribute and retrieves from among the patterns entered in the dictionary and having a corresponding group attribute to feed out the category, and a dictionary editing arrangement 5 for extracting a pattern used in common by a group before editing the pattern, such as entering it in the common dictionary, with the group having the user made to belong thereto. The invention allows the dictionary used to the pattern recognition to learn very efficiently and effectively.

Collaborative learning system and pattern recognition method

In regard to technology for broadcasting data through a transmission path, particularly, a system is provided in which a large volume of data is transmitted in a short time. On the data broadcasting side, data to be transmitted is transmitted by shifting the data in time through a plurality of transmission paths, or is decomposed and the decomposed data is transmitted through a plurality of transmission paths. On the receiving side, the received data is rearranged and reconstituted by recomposing the data into one block of data.

Data broadcasting system for performing highspeed data transmission, data broadcasting apparatus and data receiving apparatus for performing high speed data transmission

A navigation apparatus for displaying most appropriately information such as character strings, routes, etc., when a map is displayed by bird's-eye view display. The navigation apparatus includes a portion for calculating the present position on the basis of information from sensors, a portion for executing perspective conversion operation for displaying a map by bird's-eye view display, a portion for disposing the present position or the present position and a position representing a destination at the most suitable positions, a portion for controlling so that overlap of character strings can be eliminated, a portion for controlling the same character strings, a portion for displaying most appropriately a background such as lines and planes, a portion for controlling marks to be displayed, and a portion for executing graphic plotting by using the resulting map data.

Growing community of inventors

Kashiwa, Japan

Hiroshi Shojima