Panasonic Corporation

Nissan Motor Company Limited

Kabushiki Kaisha Riken

Hiroyuki Izumi

Kazuhiro Tsubota

Yutaka Mabuchi

Takahiro Hamada

Tomoyuki Koike

Masaki Moronuki

Katsuhiro Tsuji

Takashi Matsui

An image special effect apparatus capable of realizing the illumination effects corresponding to various image special effects if an illumination effect pattern is not previously determined and the shape of the effect face changes rapidly is provided. An image special effect apparatusfor adding an illumination effect using light from a light source when viewed from an arbitrary eye point in a face having a curved face to image information concerning an input image and outputting a video signal provided by mapping the image information to the face generates a normal vector at a position of the face based on rectangular coordinate data and the shape of the face, a normal vector generation section, generates reflectivity of the light in an eye point direction by calculation of A (2(L&#xb7;N)N&#x2212;2L)&#xb7;V of an expression using the normal vector, a light source direction unit vector, an eye point vector V, and an arbitrary value A, and creates the image information based on the image and the reflectivity.

Image special effect apparatus and image special effect method

A wipe pattern generation apparatus that can generate wipe patterns of various shapes at high speed and moreover can be miniaturized. is provided. A wipe pattern generation apparatusincludes a sin &#x3b8; generation sectionfor calculating sin &#x3b8; from input angle information &#x3b8;; a multiplierfor multiplying the calculation result of sin &#x3b8; by a first coefficient; a cos &#x3b8; generation sectionfor calculating cos &#x3b8; from the angle information &#x3b8;; a multiplierfor multiplying the calculation result of cos &#x3b8; by a second coefficient; a multiplierfor multiplying the result of adding output of the multiplierand output of the multiplierby a third coefficient and outputting as the reciprocal of the distance from the polar coordinate center to an arbitrary line on a display screen; a multiplierfor multiplying output of the multiplierby distance information r; and a comparatorfor making a comparison between output of the multiplierand a fourth coefficient, and generates wipe pattern output datafrom the angle information &#x3b8; and the distance information r.

Wipe pattern generation apparatus

A valve lifter, in which an amorphous hard carbon film is coated at least on the surface that slides against a cam, is characterized in that the surface of a base material (substrate) has an arithmetic mean roughness of Ra 0.01 to 0.03 micrometers, and the maximum length of the scratch on the base surface is made to be equal to or shorter than 250 micrometers.

Valve lifter

Growing community of inventors

Kanagawa, Japan

Hiroyuki Izumi