Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Tadashi Kobayashi

Yoshiyuki Mochizuki

Akio Nishimura

Kenji Nishimura

Makoto Yamakura

Akira Uesaki

Kazutaka Nishio

Minobu Abe

Kazu Segawa

Toshiya Naka

Makoto Hirai

Hitoshi Araki

Jun Ohmiya

Yudai Ishibashi

Keiichi Senda

Yoshiteru Kawasaki

Yorihiko Wakayama

Kiyoshi Maenobu

Jiro Minehisa

Daisaku Kitagawa

Mitsuteru Kida

Shigeharu Imamura

A decoding device improves a cache hit rate in a decoding process of compressed encoded image data. The decoding device, before the decoding process, generates a sort table for each reference picture for a plurality of MPEG data streams included in a GOP and having a frame type of P- or B-picture. The decoding device, by using the generated sort table, selects a group of pictures composed of a plurality of decoding target macro blocks that refer to the same reference macro block. The decoding device obtains, from the reference picture, four macro blocks including the same reference macro block referred to by the selected picture group, and stores the four macro blocks into the cache memory. The decoding device sequentially decodes each decoding target macro block included in the selected picture group, by using the four macro blocks stored in the cache memory.

Decoding device, decoding method, decoding program, and integrated circuit

A display device includes a wavelet transform unit for transforming an original image into wavelet coefficients using a Harr wavelet transform formula, a level obtaining unit for obtaining a mipmap level of a mipmap image. The display device also includes an inverse wavelet transform unit for receiving and subjecting at least a portion of the wavelet coefficients obtained by the transformation by the wavelet transform unit, to an inverse transform using an inverse Harr wavelet transform formula until an order having a value equal to the mipmap level is obtained, and outputting an image represented by at least a portion of a low-frequency component of wavelet coefficients having the order having the value equal to the mipmap level. Additionally, the display device includes a polygon drawing unit for drawing the image output by the inverse wavelet transform unit, as a mipmap image, on the polygon image.

Drawing device, drawing method, and drawing program

An image generation device includes a memory in which a burst length, which is the smallest unit of read/write processing, is large; and an image generation device in which processing efficiency at the time of a memory access does not decrease, even in the case of accessing a rendering buffer for rendering a polygon. Image data is stored in a rendering buffer in block units made up of plural pixels, and image data of pixels corresponding to the polygon is stored in a serial region of the rendering buffer. A valid pixel flag indicating that a valid pixel is present within the block is stored in the rendering information buffer. The rendering buffer is accessed as little as possible based on placement of the valid pixel flags within the block.

Image generation device and image generation method

A vehicle information recording systemincludes a picture acquiring unitplaced in a vehicle that takes a picture of surroundings and generates picture data showing the picture, a vehicle data receiving unitplaced in the vehicle that receives other vehicle data concerning another vehicle shown in the picture acquired by the picture acquiring unit, an acquired information sending unitplaced in the vehicle that sends data including the picture data and the other vehicle data outside of the vehicle, a receiving unitplaced outside of the vehicle that receives the data sent by the acquired information sending unit, an encoding unitplaced outside of the vehicle that encodes the other vehicle data among the data received by the receiving unitand adds the encoded data to the picture data as related data, and a recording unitplaced outside of the vehicle that records the picture data to which the other vehicle data is added by the encoding unit

Vehicle information recording system

A curved surface image processing apparatusaccording to the present invention that can render an object at higher speed and in higher quality by performing image processing using NURBS data includes: a data input unitfor receiving NURBS data; a coordinate transformation unitfor performing coordinate transformation on NURBS data; an animation control unitfor controlling animation data of each frame to be rendered; a data transformation unitfor transforming NURBS data into rational Bezier data; a patch division unitfor subdividing a rational Bezier surface patch; a normal determination unitfor calculating normals of control points of a divided surface patch; a perspective transformation unitfor performing perspective transformation on a divided surface patch; and a rendering unitfor rendering a surface patch.

Curved surface image processing apparatus and curved surface image processing method

A subdivision level determination unit () in a curved surface subdivision apparatus () accepts an input of information about control points that define a shape of a curved surface and determines the subdivision level for the surface. Next, it sets, for a subdivision processing operation control unit (), a control table corresponding to the determined subdivision level. The subdivision processing operation control unit () executes the subdivision processing while controlling a work memory unit () and a subdivision processing operation unit () based on the set control table.

Curved surface subdivision apparatus

An image object content generation device has a key generation unit that generates a key that is a reference for distinguishing an object pixel from a background pixel per pixel of an inputted image signal, a frame size changing unit that changes a frame size of the image signal, and a low frequency component passing unit that removes high frequency components of the image signal which was processed in the frame size changing unit. The image object generation device also has a pixel compensation unit that performs a padding processing to the image signal which was processed in the low frequency component passing unit by using Low Pass Extrapolation padding algorithm, and a pixel selecting unit that selects one of the Image signal which was processed in the low frequency component passing unit and the image signal which was processed in the pixel compensation unit.

Image object content generation device and padding device

The present invention provides an image generation/composition apparatus and method capable of performing an anti-aliasing process or translucency process, and capable of obtaining a high quality image from shape data comprising coordinate values representing a three-dimensional shape without requiring an increase in cost.

Image generation apparatus, image generation method, image generation program recording medium, image composition apparatus, image composition method, and image composition program recording medium

An apparatus for parallel image generation has four geometric data buffers for storing four partial geometric data, respectively, and four image generators connected respectively to the four geometric data buffers. Each image generator generates a partial image data for every pixel in a frame. Further provided are four image mergers connected respectively to the four image generators. The four image mergers are also connected in series. An initial image generator for generating a background image is connected to the first image merger for merging the background image data and the partial image data from the first image generator. Each of the second to fourth image merger merges an output merged data from the previous image merger and the partial image data from the corresponding image generator. A timing control is connected to the four image mergers for controlling the merging timing in such a manner that the image merger carries out the merging operation of a pixel after the previous image merger has carried out the merging operation of the same pixel.

Parallel image generation from cumulative merging of partial geometric

An image generation system having a shape model generation device for generating a set of polygons which approximates a given solid having a curved surface and output vertex coordinates of each polygon in a screen coordinate system. An image generation device is provided for generating images for each polygon on receiving the vertex coordinates, and an image display device displays the generated images. The shape model generation device divides the solid into a set of polygons in a virtual-space, where the number of polygons used for dividing the solid into polygons is minimized while maintaining a high-quality display image. The set of polygons are projected onto a screen based on a designated view point and direction in the virtual-space, and the vertex coordinates of each polygon is transformed into two-dimensional screen coordinates. An edge judgment unit is provided in the shape model generation device for judging whether any side of each screen-projected polygon constitutes a part of an outline of the set of screen-projected polygons. An edge change unit in the shape model generation device generates a new vertex in the virtual-space on any side which constitutes a part of the outline, and the coordinates of the new vertex are transformed into two-dimensional screen coordinates. A polygon division unit is provided for dividing a screen-projected polygon including any side which constitutes a part of the outline into smaller screen-projected polygons at the new vertex.

Shape model generation device for generating shape models with a reduced

A color display system for use in stadiums, arenas or streets has a matrix of three-primary triads of light-emitting elements controlled by electric signals for displaying images, characters, and/or other patterns in colors. The color display system comprises display units arrayed in horizontal rows and vertical columns and each having simplified electric connector means for external electric connection and means for effectively cooling the light-emitting elements which are packed at high density. Each of the display units has two horizontal rows of light-emitting elements mounted on a front panel of a display unit body, a control circuit housed in the body, and electric connector means mounted on a rear panel of the body. The display units are located closely in each horizontal row and spaced at intervals in each vertical column. A ventilator is disposed behind the display units for cooling the light-emitting elements. Various support arrangements are provided for stably supporting the display units which may have an increased depth.

Growing community of inventors

Ibaraki, Japan

Tadashi Kobayashi