Matsushita Electric Industrial Co., Ltd.

Rohm Co., Ltd.

Makoto Shimizu

Masaaki Sato

Kunio Yoshida

Motohiko Naka

Takehiko Shida

Ikuo Akamine

Mie Saitoh

Katsuhiko Fujiwara

Akira Yokouchi

Takashi Deguchi

Takayuki Imai

Takahito Chinomi

Yasuhito Mukai

Yoshiaki Uchida

The present invention provides a CMOS area image sensor that makes it possible to prevent or reduce at least image quality degradation based on an inappropriate brightness distribution that is produced in the pickup image and image degradation based on image distortion that is produced in the pickup image to obtain a high-quality pickup image. A plurality of pixels arranged in a lattice shape on the imaging face of the CMOS area image sensor are constituted by a photodiode, a select transistor TRs for outputting accumulated electrical charge resulting from exposure from the photodiode, an electrical charge holding circuit comprising a capacitor C for temporarily holding the accumulated electrical charge from the photodiodeand a transfer transistor TRt for controlling the transfer of the accumulated electrical charge to the capacitor C; and a reset transistor TRr for discharging the residual electrical charge of the capacitor C. The level of an inappropriate photoelectric conversion signal of each pixel arising from a non-uniform transmissive light amount distribution to the imaging face of the imaging optical system as a result of the photoelectric conversion signal that is outputted by each pixel being multiplied by a vertical correction coefficient that is preset for each row and a horizontal correction coefficient that is preset for each column is corrected.

Area image sensor

An array of pyroelectric type heat detecting elements of different which are integrally incorporated with an optical system and which are arranged one dimensionally in a plane orthogonal to the optical axis of the optical system, and the optical system and the array of pyroelectric type heat detecting elements are rotated integrally with each other; thereby it is possible to obtain a two dimensional thermal image with a relatively simple structure.

Thermal image detecting apparatus having detecting elements arranged on

A picture processing apparatus is composed of an infrared ray sensor for producing an infrared picture in which a heat distribution of a measured area is recorded, a picture processing section for processing the infrared picture to extract pieces of personal characteristic data and environmental characteristic data from the infrared picture, and a picture information detecting section composed of a neural network for detecting pieces of personal information and environmental information according to the characteristic data. To be concrete, one or more human-areas respectively recording one or more persons are picked out from the infrared picture, and representative points of the human-areas, the number of human-areas, the number of pixels in each of the human-areas and shapes of the human-areas are extracted as the personal characteristic data. Also, the number of persons in each of the human-areas, foot positions of the persons, person's postures, skin temperatures of the persons and the volume of person's clothes are detected as the personal information according to the personal and environmental characteristic data.

Picture processing apparatus for processing infrared pictures obtained

A pattern classification system includes a plurality of classification sections. Each of the classification sections includes a device for storing information of N coefficients W representing a reference pattern, a device for calculating an evaluation value V on the basis of N input signals S and the N coefficients W, the N input signals representing an input pattern, the evaluation value V representing a relation between the input pattern and the reference pattern, a device for storing information of a fixed threshold value R, and a device for comparing the evaluation value V and the threshold value R and for outputting an estimation signal depending on a result of the comparing, the estimation signal including a category signal P which represents a category. A selection section is operative for selecting one of categories in response to the category signals outputted from the classification sections and for outputting a signal Px representing the selected one of the categories. An adjustment section is operative for adjusting parameters in the classification sections in response to the output signal Px of the selection section and a teacher signal T, the parameters including the coefficients W.

Pattern classification system

Growing community of inventors

Kyoto, Japan

Makoto Shimizu