Kabushiki Kaisha Toshiba

Yoko Sambonsugi

Takashi Ida

Toshiaki Watanabe

Noboru Yamaguchi

Osamu Hori

Toshimitsu Kaneko

Takeshi Chujoh

Yoshihiro Kikuchi

Takeshi Nagai

Haruhiko Okumura

Goh Itoh

Hitoshi Kobayashi

Hisao Fujiwara

Rieko Furukawa

An object extraction method comprising the steps of comparing each portion of first image data obtained by capturing an extraction object with another portion of the first image data or second image data, thereby generating shape data as an image representing a provisional region of the extraction object in the first image data, and matching a contour of the shape data to a contour of the extraction object by using the first image data and the provisionally generated shape data.

Method of extracting contour of image, method of extracting object from image, and video transmission system using the same method

An apparatus for retrieving a video picture includes a decoder section for decoding a coded bit stream of video picture data representing an arbitrary shape object and including shape information and texture information, a retrieval condition input section for inputting a retrieval condition for retrieval of a desired picture, a retrieval section for retrieving a picture meeting the retrieval condition by using shape information of the object decoded by the decoder section, and a display section for outputting the retrieved result obtained by the retrieval section.

Method of retrieving video picture and apparatus therefor

An image displaying apparatus includes an image storing unit storing image data containing two or more objects. An extracting unit extracts individual data from the object of the image data. An input unit inputs additional partial image data, and attribute data representing a corresponding relationship of at least part of the image data to the additional partial image data. An associating unit associates the additional partial image data with an individual data of the image data, using the attribute data input via the input unit. A synthesizing unit modifies a data content regarding at least part of the image data, which is associated by the associating unit, and synthesizes the modified content with the image data stored in the image storing unit.

Image reproduction apparatus having function of displaying synthesized data by varying part of original image data

A liquid crystal display apparatus comprising a display panel having a plurality of pixels arranged in a matrix, signals lines for inputting a video signal to the plurality of pixels, and switching elements for selecting the pixels individually, a video decoder which decodes input compressed video data to obtain a reconstructed picture signal for each frame, a change region detector for detecting a change region between a previous frame and a current frame by using the reconstructed picture signal, to obtain address data on the change region, a display signal converter for converting the reconstructed picture signal into a display picture signal, a difference signal detector for detecting a difference signal indicating at least a difference between the previous frame and the current frame, a switch driver for selectively driving the switching elements to select the pixels corresponding to the change region in accordance with the address data, and a signal line driver for adding the difference signal and the display picture signal of the previous frame, and inputting an addition result to the signal lines.

Display apparatus

Rectangles R(i&minus;1), R(i), and R(i&plus;1) are set to surround three temporally continuous frames f(i&minus;1), f(i), and f(i&plus;1). Difference images fd(i&minus;1, i) and fd(i, i&plus;1) are obtained on the basis of the inter-frame differences between the current frame f(i) and the first reference frame f(i&minus;1) and between the current frame f(i) and the second reference frame (i&plus;1). Background regions are respectively determined for polygons Rd(i&minus;1, i)&equals;R(i&minus;1) or R(i) and Rd(i, i&plus;1)&equals;R(i) or R(i&plus;1), and the remaining regions are selected as object region candidates. By obtaining the intersection between these object region candidates, an object region O(i) on the current frame f(i) can be extracted.

Object extraction apparatus

Growing community of inventors

Zama, Japan

Yoko Sambonsugi