Hitachi, Ltd.

Hitachi Denshi Kabushiki Kaisha

Hitachi-kokusai Electric Inc.

Institute for Personalized Information Environment

New Media Development Association

Hitachi Kokusai Electric Co., Ltd.

Other

Hitachi Maxell, Limited

Hitachi Vlsi Engineering Corp.

Hitachi Microcomputer Engineering, Ltd.

Hitachi, Vlsi Eng. Corp.

Institut for Personalized Information Environment

Hirotada Ueda

Takafumi Miyatake

Wataru Ito

Shigeo Sumino

Akio Nagasaka

Mitsuru Ikezawa

Hitoshi Matsushima

Yoshimune Hagiwara

Seiichi Hirai

Katsumi Taniguchi

Kenji Kaneko

Satoshi Yoshizawa

Takeshi Uno

Kazuhito Yaegashi

Tetsuya Nakagawa

Sadahiro Ikeda

Tsuyoshi Kawabe

Toshimichi Okada

Masanori Sumiyoshi

Masakazu Ejiri

Shinya Ogura

Hiromasa Yamada

Atsushi Kiuchi

Shigeki Nagaya

Tomomi Takada

Mitsue Ito

Shinji Matsuoka

Jun Ishida

Masahiro Kageyama

Toshiaki Suzuki

Seiji Yonezawa

Toshikazu Yasue

Kanji Kato

Katsumi Tada

Takashi Takeuchi

Kazuaki Tanaka

Itaru Mimura

Taizo Kinoshita

Kazuyuki Kodama

Miyuki Fujii

Hisao Tanabe

Yutaka Hidai

Tetsuya Yoshimura

Masashi Uyama

Tomoru Sato

You Takamori

Miyuki Endo

Toshiaki Yokoyama

Shigeyuki Murata

Kenji Keneko

Toshiaki Hirama

Atsuchi Kiuchi

Takanori Toyomasu

Tsutomu Itou

Tsutomu Ito

An image data recording and reproducing system comprises an image data input unit, an ID generator generating an ID inserted to image data from the image data input unit, a plurality of image data recorders for recording the image data, and an output unit for outputting the image data recorded into the plurality of image data recorders, wherein each of the plurality of image data recorders has an ID table and an image data storage area, and an ID of the ID table is matched with image data of the image data storage area on the bases of recording position information of the image data.

Recording and reproducing system for image data with recording position information and a recording and reproducing method therefor

In an image recording/reproduction method for recording image information on a recording medium by using a computer, a verify mode is set into the OFF state when recording image information on said recording medium. In addition, use as a write or read region a specified region of the recording medium which is greater than or equal to a unitary data size being handled during error correction processing to be performed when writing or reading image information on or out of said recording medium. Additionally, upon reading of image information from the recording medium, any image information that has experienced read errors will never be read again.

Method and apparatus for recording/reproducing image information on/from removable medium

A circulating memory apparatus and a data storage and distribution system using a circulating recording area effectively and having an improved access efficiency to the circulating recording area are disclosed. A memory area secured in a disk unit is used in circulation thereby to record the time series input data. The time series input data are edited into a data block of a predetermined size including a plurality of subblocks, and written into the disk unit by data block. In response to a request for outputting specific data, the data are read by subblock from the disk unit into a cache memory thereby to selectively output the specific data contained in the subblocks.

Circulating memory apparatus and image storage distribution system

A change detecting method and apparatus constituted by an input portion for inputting image data obtained by imaging apparatus, a processing unit for processing the image data inputted from the input portion, and a storage for storing the image data. The processing unit has an image data change detecting portion, a monitoring information generating/transmitting portion. The storage has a monitoring schedule table. The image data change detecting portion reads the image data from the storage based on the monitoring schedule table, and detects a change in image data from the image data. The monitoring information generating/transmitting portion generates monitoring information based on a result of the detected change and outputs the monitoring information.

Change detecting method and apparatus

An image data storage method and system for editing image date transmitted from an image producing apparatus through a network and storing it in a removable recording medium includes a network, an image producing apparatus for transmitting image data through the network, an image storing and delivering server for storing the image data transmitted from the image producing apparatus through the network and delivering it through the network, an image receiving apparatus for communicating with the image storing and delivering server through the network to receive the image data from the image storing and delivering server, and an external recording apparatus combined with the image receiving apparatus for storing the image data from the image receiving apparatus in a recording medium. The image receiving apparatus stores reproduction software for reproducing the image data in the recording medium together with image data.

Image data storage method and system

A video distribution method and a video distribution system connected to a transmission path such as the Internet. The system has a video signal input unit, an encoder for converting the video signal into a digitally compressed image data, an image accumulation and distribution unit for accumulating and distributing the digitally compressed image data, a notification unit for reading the accumulated images and detecting an image change, an image browsing data converter for reducing the accumulated image, and an information terminal for accessing the images of the image accumulation and distribution unit and the image browsing data converter. The notification unit, upon detection of an image change, records the image change occurrence time. The information terminal acquires the image from the image accumulation and distribution unit or the video browsing data converter based on the change occurrence time information stored in the notification unit.

Video distribution method and video distribution system

An object tracking method and an object tracking apparatus. Based on two or more frames of images acquired at different time points from an imaging unit, an image changing area is detected between the frames. Based on the image changing area thus detected, the position of an object is detected. The detected position of the object is set as a new detected position of the object in place of the present detected position of the object, thereby detecting and tracking an object intruding into a monitor area.

Object tracking method and object tracking apparatus

Object detection method and apparatus, including an image-pickup unit picking up the image of a target region, a first recording device accumulating, as a reference image, an image signal from the image-pickup unit, a second recording device storing a table which defines surveillance information on the image signal, an object detection processing unit detecting a target object from the image signal and the reference image, a memory table storing a processing result from the processing unit, and a display unit. The image signal from the image-pickup unit is saved based on the table of the second recording device, and the processing result in the memory table is displayed on the display unit. The surveillance information in the table of the second recording device is modified based on the display of the processing result obtained by the object detection processing unit.

Object detection method and apparatus which perform object detection using set parameters

A method for editing an image on a display unit, an apparatus for executing the method and a computer program product for the method, wherein a predetermined CG object is designated in an image on the display unit, and in order to edit the image, a first command list for speech, motion, moving image reproduction or audio reproduction is displayed on the display unit, a command for editing the designated CG object is selected from the first command list and executed for the designated CG object. In the method of editing the image on the display screen and the apparatus for executing the method, the position information of the CG object located in the CG studio on the display unit and the information on the position and orientation of the camera for imaging the CG studio are read from a memory, it is determined whether the CG object selected by the pointing device is a CG character or a property, the information on the position to which the pointing icon has moved on the display unit by manipulating the pointing device is acquired, and the selected CG object is moved to the position to which the pointing icon has moved. Based on the information on the position to which the CG object has moved, the data on the character set-up window is updated in the case where the CG object is a CG character, and the data on the studio set-up window is updated in the case where the CG object is a property. The selected CG object can be dragged to the desired position by the pointing device.

Method and apparatus for editing image data, and computer program product of editing image data

An intruding object detecting method and an intruding object monitoring apparatus for detecting a target object intruding into an image pickup region while reducing the error detection of moving objects other than the target object. A difference in pixel value between an input image signal and each of different image signals in a predetermined number of frames greater than one is calculated for each pixel to thereby obtain differential images in the predetermined number of frames. The differential images in the predetermined number of frames are synthesized in predetermined proportions to thereby generate a synthesized differential image. The synthesized differential image is binarized on the basis of a predetermined threshold value to thereby generate a binarized image. A binarized object in the binarized image is detected as an object intruding into a monitoring visual field.

Intruding object detecting method and intruding object monitoring apparatus employing the method

In object detection method and apparatus, a detection image related to a binary image obtained by subtracting a background image from an input image delivered from an image-pickup device is displayed on the display screen of a display unit, responsive to an operation done by an operator who determines that at least one object in the displayed detection image is a region to be excluded from object detection, the region of the object is set as a masking region automatically and thereafter, object detection is performed in respect of individual input images while performing masking in the masking region.

Object detection method using an image-pickup device with easy detection masking region setting and object detection apparatus using the method

A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a time length between each of the frame images and a next one of the frame images, assigning index information determined by the calculated time length to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information. The index information is a character code, and the strung-together index information is a character code string. The frame images include head frame images located at scene changes of the input video. The input video is being broadcasted or is included in a data base.

Video retrieval method and apparatus

An object is detected in comparison between an input image from an image pick-up device having a zoom mechanism and a template image stored in a manner that a first image within a view field of the image pick-up device is stored as a first as the template image, a power of the zoom mechanism to be changed is recorded, a second image to be detected is picked-up from the image pick-up device. Then, a size of either one of the template image and the second image is changed on the bases of the changed power of the zoom mechanism, and a template matching is performed between the template image and the second image to detect the object. This process makes it possible to track an object within the view field.

Object tracking method and apparatus using template matching

A change detecting apparatus and monitoring system using the apparatus as a notification apparatus. The change detecting apparatus has an input unit receiving a monitor image captured by a pickup unit, a region specification unit specifying N regions (N&#x2267;2) in the monitor image, a notification destination specification unit specifying notification destinations of image changes in the monitor image in advance according to the image change characteristics, a change detection unit detecting an image change in the N regions, a characteristics extraction unit extracting a feature of the image change, a monitor information generation unit generating monitor information related to the detected image change and a transmission unit transmitting the monitor information. Based on the detected image change characteristics, the monitor information is transmitted to a notification destination set in the notification destination specification unit.

Change detecting method and apparatus and monitoring system using the method or apparatus

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Kokubunji, Japan

Hirotada Ueda