Matsushita Electric Industrial Co., Ltd.

Kiyoshi Maenobu

Makoto Hirai

Akio Nishimura

Yorihiko Wakayama

Tokuzo Kiyohara

Kenji Nishimura

Toshiya Naka

Tadashi Kobayashi

Kosuke Yoshioka

Minobu Abe

Takaharu Tanaka

Jiro Minehisa

Kazu Segawa

Satoshi Nagamine

The counter is set with an initial value of &ldquo;1&rdquo; and is a counter with a maximum value of &ldquo;4&rdquo;. This counter increments the count value held by the flip-flop in synchronization with a clock signal so that the count value changes as shown by the progression 1,2,3,4,1,2,3,4. This clock signal is also used by the instruction decode control unit to control the execution of instructions, with the counting by the counter being performed once for each instruction execution performed by the instruction decode control unit . The comparator compares the count value counted by the counter with the maximum value &ldquo;4&rdquo;, and when the values match, sets the task switching signal chg_task_ex at a &ldquo;High&rdquo; value, so that the processing switches to the execution of the next task.

Processor capable of efficiently executing many asynchronous event tasks

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

The present invention discloses an image defocusing apparatus for defocusing an image formed on a screen by modeling an object in a boundary box by updating pixel values on the image to approximate a lens's focusing effects and a method thereof. The apparatus comprises a unit for computing data related to a circle of confusion for each point in the boundary box, the circle of confusion being a measure how defocused an out-of-focus point is on the screen, a unit for checking a reference pixel whose corresponding point's circle of confusion overlaps a pixel selected as a target pixel, and a unit for updating an original value of the target pixel by taking into account a value of the reference pixel and the data of the target pixel's circle of confusion.

Apparatus and method for defocusing images

Growing community of inventors

Amagasaki, Japan

Kiyoshi Maenobu