Brother Kogyo Kabushiki-kaisha

Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Hitachi, Ltd.

Brother Industries, Ltd.

Yoshimasa Hara

Shoichi Hayasaka

Hideo Fukamachi

Toshio Sawaki

Hiromichi Yamada

Takemi Yamamoto

Kenji Sakakibara

Yumio Matsumoto

Shinya Kawamata

Kiyoharu Hayakawa

Yuji Asano

Kazuo Sangyoji

Naoyuki Hatta

Yasuhiko Uehara

Yasuo Hagisato

Ryuji Yamaguchi

Hironori Sato

Kunihiko Toyofuku

Masami Kataoka

Yasukazu Morita

Nobuhiko Wakayama

Shotaro Eguchi

Naotaka Ichikawa

A near-infrared night vision device to which a pedestrian detection device is applied includes a near-infrared projector, a near-infrared camera, a display and an ECU. By executing programs, the ECU constitutes a pedestrian candidate extraction portion and a determination portion. The pedestrian candidate extraction portion extracts pedestrian candidate regions from near-infrared images. The determination portion normalizes the sizes and the brightnesses of the pedestrian candidates extracted by the pedestrian candidate extraction portion, and then computes the degrees of similarity between the normalized pedestrian candidates. The determination portion determines that a pedestrian candidate having two or more other pedestrian candidates whose degree of similarity with the pedestrian candidate is greater than or equal to a predetermined value is not a pedestrian.

Pedestrian detection device and pedestrian detection method

An object detection apparatus for detecting an object from an image obtained by taking a front view picture of a road in a traveling direction of a vehicle includes a camera unit for taking the front view picture of the road and inputting the image; a dictionary modeling the object; a search unit for searching the image with a search window; a histogram production unit for producing a histogram by comparing the image in the search window with the dictionary and counting a detection frequency in a direction parallel to a road plane; and a detection unit for detecting the detection object by detecting a unimodal distribution from the histogram.

Object detection apparatus, method and program

A second circuit separately extracts a synchronization signal and brightness signal from an image signal output from a camera for capturing an image of a subject. A gamma amplifier produces a gamma correction signal based on a brightness ratio characteristic in which a display brightness increases as the signal level of the brightness signal increases and the display brightness is set using a display brightness correction ratio which is preferably 70 to 90% of an equi-proportional display brightness correction ratio when the signal level of the brightness signal falls in a high-brightness range. A liquid crystal display receives the gamma correction signal and displays an image captured by the camera with the display brightness set in accordance with the brightness ratio characteristic while synchronizing with a drive timing signal output from a first circuit. Thus, the difference in display brightness between different high-brightness regions or subjects is made large, whereby halation which may otherwise occur between those regions or subjects can be prevented.

Night vision system and control method thereof

In a control apparatus for a self-heating type cold-cathode discharge tube, a microcomputer determines boosting time based on a detected surrounding temperature of the cold-cathode discharge tube. The boosting time is increases as the detected temperature decreases. A switching circuit, powered from a direct current power supply, performs a switching operation based on a determination output from the microcomputer. An inverter circuit actuates the cold-cathode discharge tube based on the switching operation which is duty-controlled. The duty ratio is determined to be higher when the detected surrounding temperature is within a predetermined low temperature range than outside the predetermined low temperature range.

Self-heating type cold-cathode discharge tube control apparatus

A charger has a charging unit for charging a Ni-Cd battery using a DC supply, a charging switch, and a discharging unit for discharging, by a predetermined quantity, an electric charge stored in the Ni-Cd battery by the charging unit. Further, the charger repeats a charging and discharging process a predetermined number of times to charge the Ni-Cd battery. A controller cuts off a charging current flowing in the Ni-Cd battery when the value of the charging current reaches a rated capacity of the Ni-Cd battery and subsequently effects a repetitive control of both the charging of the Ni-Cd battery and the cutting off of the charging current. Thus, a Ni-Cd battery whose electromotive force has been reduced and whose internal electric resistance has increased can be charged without continuously producing heat. Accordingly, the charger can recover a Ni-Cd battery whose electromotive force has been reduced because the Ni-Cd battery has been unused for a long period without deteriorating the Ni-Cd battery.

Charger for use with a nickel-cadmium battery that uses charge and

There are disclosed a europium and terbium-coactivated phosphor having chemical composition formula

Cathode ray tube with an oxysulfide phosphor

An image processing apparatus, including an irradiating device for emitting an image radiation representative of an original image, a projecting device having a viewing screen which is irradiated by the image radiation from the irradiating device and which provides a view of a visible image represented by the image radiation, and an exposing device for exposing a photosensitive recording medium to the image radiation from the irradiating device to produce a visible image represented by said image radiation. The apparatus further includes an optical guide device for directing the image radiation from the irradiating device to the projecting device and the exposing device.

Image processing apparatus for reproducing images on projector screen

An exposure device for an image exposure onto a photosensitive recording medium includes a cathode ray tube serving as an exposure light source which supplies an optical radiant energy onto the recording medium. The photosensitive recording medium has an .gamma. characteristic in a relation between the density of the image recorded thereon and an optical radiant energy applied thereto. For recording an image corresponding in density to an image of an original, there is provided a driver circuit which receives an input voltage indicative of the density of the image on the original and when the input voltage exceeds a predetermined value, an output voltage applied to the cathode ray tube to cause an image of 0% (white) in density to be recorded on the recording medium. When the input voltage is below the predetermined value, the output voltage is applied thereto which changes in proportion to the input voltage. Accordingly, not only the reproduction of the white color is ensured but also half-tone can faithfully be reproduced.

Exposure device using CRT as exposure light source

To record a CRT image on a photosensitive recording medium, the latter is exposed to an image bearing light emanated from a display screen of a CRT. Currents flowed through horizontal and vertical deflection coils are varied to thereby change the horizontal and vertical sizes of the image displayed on the CRT, whereby the size of the image recorded on the recording medium can be changed without moving the position of the recording medium and/or a focusing lens interposed between the display screen of the CRT and the recording medium.

Growing community of inventors

Nagoya, Japan

Yoshimasa Hara