Fujitsu Corporation

Hitoshi Matsumoto

Satoshi Sonohara

Shigeki Furuta

Mitsuaki Fukuda

Chikako Matsumoto

Takushi Fujita

Masaaki Oota

Motoyuki Morita

Yuichi Nagai

Waku Ooe

Shuro Shindo

Yuzuru Koga

Shushi Takiyama

Takahiro Kii

Fumio Honda

Seiki Shibata

Hitomi Baba

Dave Marvit

Albert Reinhardt

An image processing method and apparatus includes a controller for an electronic apparatus which displays image data stored in a image memory on a display unit. The controller includes an output unit outputting the image data to be displayed and stored in the image memory to the display unit, a storing controller storing an image data received from an image input device to the image memory, and a transfer unit transferring the image data stored in the image data by the storing controller to a second memory.

Method and device for processing image data by transferring the data between memories

Disclosed is an image processing system including an image input unit, an extraction unit, a plurality of compression process parts and a selection unit to compress a 1-frame image down to a less amount of color information. The image input unit takes in a plurality of frame images per frame. The extraction unit extracts each of the taken-in frame images per unit area of a designated size. The plurality of compression process parts effects compression processes different from each other with respect to pels contained in each unit area. The selection unit selects one compression process part from the plurality of compression process parts for compressing the unit area of the designated size.

Image compression method and image processing system

In an interactive editing apparatus, a three-dimensional object to be edited is a set of polygonal surfaces which are arranged in a three-dimensional space and have the same number of sides. These polygonal surfaces are arranged on the three-dimensional space to display on a perspective view, the sides of the polygonal surfaces are linearly enveloped to express a polygonal three-dimensional object. When a user edits any one of vertex positions, data regarding the edited vertex and associated other vertex positions are updated. Further in the interactive editing apparatus, data regarding vertexes and faces of the object are managed using data cells, and shape data before the last editing are stored in the data cells together with present shape data, whereby an undo function is realized.

Editing three-dimensional vertex data with undo facility

A solid graphic arranging/editing method enables a user to enter or edit a solid graphic viewed on a display. According to the method, three points of a rectangular parallelepiped are specified, and the solid is arranged to be inscribed within the parallelepiped. A reference plane is then defined and a first point on the reference plane is specified. A local coordinate plane is also defined and a second point is specified on the local coordinate plane. A rectangle lying in the local coordinate plane and having the first and second points as diagonal vertices is then displayed. Auxiliary lines perpendicular to the local coordinate plane and passing the second point are also displayed and a third point on a selected auxiliary line is displayed. A rectangular parallelepiped is then displayed having the rectangle as one surface and the third point as a vertex. The position of the solid and the scales are then adjusted such that the solid is inscribed in the rectangular parellelepiped.

Three-dimensional solid arranging/editing method in a computer graphic

An image data compression method in which reductions in data amount are achieved by deleting some pixel data. Compression is achieved by performing a reading step to read an image as plural pixel data and a deleting step to delete some of the pixel data. A prediction error calculating step calculates a prediction error that represents the difference between the color value pixel data of a pixel in question and the predicted color value thereof, as predicted by a prescribed prediction method from the pixel data of a pixel adjacent thereto. An area classifying step classifies the pixel data of the entire image area into either an abrupt color change areas type in which the prediction error is large or a nonabrupt color change area in which the prediction error is small. The deleting step is performed only on the pixel data classified in the nonabrupt color change area; deleted-position information is appended to the non-deleted pixel data that indicates the position of a pixel whose data has been deleted. This improves the quality of reproduction, since no pixel data are deleted where large errors would be expected to occur in reproduction.

Image data compression method involving deleting data in areas where

A motion picture reproducing apparatus having a file composed of a header an image track on which image data have been recorded for a predetermined period of time and a sound track on which sound data have been recorded for the predetermined period of time. The image and sound data of the file are provided with track and data identifying numbers by a track identifying section and a data identifying section, respectively, and are outputted to a data synchronizing section. The data synchronizing section reads in order the image data and the sound data on the basis of the control information of the header, synchronizes the image data and the sound data to which the same data identifying numbers have been imparted with reference to the track and data identifying numbers which have been given to the image data and sound data, and outputs the image and sound data to reproduction units.

Motion picture reproducing apparatus in synchronism with sound signal

In a 3-dimensional animation generating apparatus which uses a computer, the user generates a number of static images having parent-child relationships and which serve as key frames in the sequence from the start to the end of the animation, a number of animation frames specified by the user being automatically inserted between the key frames by means of interpolation. In this 3-dimensional animation generating apparatus, the times of each of the key frames as specified by the user are stored, the parent object coordinates and child object coordinates generated by the user are stored in a world coordinate system, along with parent-child relationship in each of the key frames. When the 3-dimensional animation generating apparatus generates interpolated frames, the parent-child relationship in neighboring key frames in the time sequence is interpolated to first generate the parent-child relationship existing in the interpolated frame, after which the parent object coordinates in the interpolated frame are calculated in the world coordinate system by interpolating the parent object coordinates in each of the neighboring key frames. The coordinates of a child object in an interpolated frame are determined from the parent-child relationship within the interpolated frame and the parent object coordinates in the interpolated frame. The animation is thus generated from the interpolated frame parent object coordinates, the interpolated frame child object coordinates, and the parent-child relationship.

3-Dimensional animation generating apparatus

A device comprises a look-up table translating unit, a region dividing unit and a reduced image generating unit to reduce the size of a color image using look-up tables and a reference look-up table. Each of the look-up and reference look-up tables has as many entries as there are the pixel values. The look-up table translating unit creates an entry check table. The entry check table is for translating the table entries of the look-up table into the those of the reference look-up table. The region dividing unit divides the original color image into a plurality of regions. The reduced image generating unit accesses the entry check table and the reference look-up table to selectively determine a representative pixel of the region based on the RGB values thereof to generate the reduced color images.

Device and method for reducing the size of a color image to display

The method comprises a read-out step for reading out the image data from a predetermined recording medium according to a frame unit; an image outputting step for image-outputting the frame data read out in the read-out step; a time measuring step for measuring a reproductive processing time taken from a start of reading out in the read-out step to an end of outputting of an image in the image outputting step according to a frame unit; a predicting step for predicting an image output time of next frame data to be reproduced next to the frame data on the basis of the reproductive processing time measured in the time measuring step; a detecting step for detecting an image output time set per frame data from the image data; and a determining step for determining next frame data to be reproduced next to the frame data in accordance with the image output time predicted in the predicting step and the image output time detected in the detecting step.

Method of and apparatus for controlling reproduction of image data

A video data reproducing apparatus and method therefor having a file controller section for controlling video data recorded on a first recording medium at random positions, and further, having a second recording medium for recording the video data in a serial manner. The apparatus includes a decision section for judging whether to select the video data of either the first recording medium or the second recording medium. A first reading section reads out the data of the first recording medium through the file controller section when the first recording medium is selected by the decision section, and a second reading section reads out the video data to a buffer memory from the second recording medium, without any intervention of the file controller section, when the second recording medium is selected by the decision section.

Video data reproducing apparatus for reproducing video data and method

An apparatus including an image pick-up device, a data storage controlling arrangement, a main memory, a mass storage device, and a manipulation size setting unit. The image pick-up device picks up images to produce image data and stores the same into a frame buffer. The main memory offers rapid access but low storage capacity and stores the image data supplied from the frame buffer. The mass storage device is capable of holding a vast amount of memory but cannot be accessed very quickly. It also stores the image data supplied from the frame buffer. The manipulation size setting unit sets a mask region and a frame rate both of which are necessary for storing the image data into the mass storage device. The data storage controlling arrangement controls storage of the image data, in which the image data is stored in the mass storage device when the same is capable of storing the image data at an inherent frame rate larger than or equal to the set frame rate, and in which the image data is stored in the main memory when the inherent frame rate is smaller than the set frame rate.

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Kawasaki, Japan

Hitoshi Matsumoto