Ricoh Company, Ltd.

Hideomi Fujimoto

Yuji Takahashi

Shinya Tanaka

Satoshi Takano

Shuichi Suzuki

Hiroyuki Nagano

Atsushi Hagiwara

Shin Aoki

Haike Guan

Hiroyoshi Sekiguchi

Jun Yoshida

Yoshikazu Watanabe

Mitsuru Nakajima

Soichiro Yokota

Takayuki Inoue

Yoshikazu Gyobu

Mutsumi Namba

Eita Watanabe

Reiko Kuromizu

A distance measuring apparatus measuring a distance to an object is disclosed. The apparatus includes a light projector projecting an irradiating light onto the object; a first receiver receiving and converting a reflected light into a received light signal; a second receiver adjacent to the light projecting unit, the second receiver receiving and converting the irradiating light into a reference signal, the second receiver being different from the first receiver; and a distance measuring unit measuring the distance based on a time. The distance measuring unit calculates an integrated waveform based on a reference waveform of the reference signal and a waveform of the received light signal, determines, based on the integrated waveform, a time from projection of the irradiating light onto the object by the light projecting unit until reception of the reflected light by the first receiver, and calculates the distance based on the determined time.

Distance measuring apparatus, electronic device, method for measuring distance, and recording medium

An information processing apparatus includes a correlation unit that correlates distance information indicating a distance to an emission position of electromagnetic waves emitted in a shooting direction of a plurality of image pickup units with a first pixel in a first image that constitutes images taken by the image pickup units, the distance information being obtained based on reflected waves of the electromagnetic waves and the first pixel corresponding to the emission position of the electromagnetic waves, and a generation unit that generates a parallax image by using the distance information correlated with the first pixel for parallax computation of pixels in a second image that constitutes the images.

Parallax operation system, information processing apparatus, information processing method, and recording medium

An image forming apparatus includes an image forming unit for forming an image; a status conversion unit for converting the multi-value pixel data into status values; plural reference look-up tables each indicating an association between an arrangement of the status values of a target pixel and adjacent pixels in a pixel window and an output data value of the multi-value pixel data to be output; a determining unit for determining a target reference look-up table based on the arrangement; and a generating unit configured to change an input data value of the multi-value pixel data, into the output data value of the determined target reference look-up table, and for outputting the multi-value pixel data to the image forming unit.

Image forming apparatus, image forming method, and image forming program product for processing pixels of vertical and diagonal lines expressed by input multi-value pixel data

Image processing is done by separating image data into foreground image data, background image data, and mask image data. The foreground image data is divided into a plurality of square blocks composed of a plurality of pixels. The difference between maximum pixel values and minimum pixel values in each square block is compared to a threshold value. If the difference is below the threshold, the pixel value data in the square block is averaged. If the difference is above the threshold, the plurality of square blocks may be subdivided into smaller square blocks and the difference calculated again. If the difference is below the threshold, the pixel value data in the smaller square block is averaged. If the difference is above the threshold, the smaller square block is not averaged. Each of the foreground image data, background image data and mask image data are then individually compressed and merged.

Selectively compressing picture and text areas of an image to maintain highest quality and effective compaction

An apparatus and a method of controlling a light level of a light beam irradiated by a light source are provided. The light source is caused to irradiate the light beam having a light level determined based on a light level correction value for a specific main scanning position. The light level correction value is calculated based on light level change information indicating the change in the light level correction value for the specific main scanning position changes with respect to an initial light level correction value or a preceding light level correction value.

Apparatus and method of controlling light level of a light source, and recording medium storing program of controlling light level of a light source

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Kanagawa, Japan

Hideomi Fujimoto