Ricoh Company, Ltd.

Xue Li

Ryosuke Kasahara

Hideaki Hirai

Hiroyoshi Sekiguchi

Masanori Kobayashi

Shin Aoki

Go Maruyama

Masahiko Itoh

Tetsuya Sasaki

Tomoko Ishigaki

An object identifying apparatus is disclosed, including: an imaging part, and an object identification processing part. The imaging part receives two polarized lights having a different polarization direction included in light reflected from the object existing in the image pickup area and captures two polarization images. The object identification processing part conducts an identification process for identifying the object existing at a place corresponding to each of multiple process areas in the image pickup area by using the two polarization images captured by the imaging part.

Object identifying apparatus, moving body control apparatus, and information providing apparatus

A disclosed transparent body detection system includes an image acquisition unit acquiring a vertical polarization image and a horizontal polarization image by acquiring an image of a first region, the image including a transparent body having characteristics in which a polarization direction of transmission light changes; a placing table on which the transparent body is to be placed; a polarization filter disposed opposite to the image acquisition unit across the placing table and at a position including a second region, an image of the second region including at least the transparent body in the first region and being acquired; and an image processing apparatus detecting the transparent body based on distribution of vertical/lateral polarization degree of a vertical/lateral polarization degree image based on the vertical polarization image and the horizontal polarization image.

Transparent object detection system and transparent flat plate detection system

A vehicle detection device having an imaging device to capture two respective polarized images from two polarized light beams having different polarization directions contained in light received from an imaging area including a road surface on which one's own vehicle is traveling and a vehicle traveling on the road surface and a polarization difference calculation device to calculate a polarization difference indicating the ratio of a luminance difference between the two respective polarized images to the luminance total thereof for respective identification processing areas formed by dividing the two respective polarized images taken by the imaging device, and a vehicle area detection device to conduct a vehicle area detection process of detecting a vehicle area displaying the vehicle in the imaging area based on the polarization difference of the respective identification processing areas calculated by the polarization difference calculation device.

Vehicle detection device and vehicle detection method

An imaging apparatus, including an imaging device determining an index value representing differences in sizes of plural polarization components having polarization directions different from each other included in light from each point in an imaging area, and continuously image a polarization information image having a pixel value based on the determined index value to form a moving image of the polarization information image; and a light exposure adjuster adjusting a light exposure such that the differences in sizes of the plural polarization components are maximum at a predetermined light exposure adjustment time during the continuous imaging.

Imaging apparatus that adjusts light exposure by analyzing polarization components

An object identification device identifying an image region of an identification target includes an imaging unit receiving two polarization lights and imaging respective polarization images, a brightness calculation unit dividing the two polarization images into processing regions and calculating a brightness sum value between the two polarizations images for each processing region, a differential polarization degree calculation unit calculating a differential polarization degree for each processing region, a selecting condition determination unit determining whether the differential polarization degree satisfies a predetermined selecting condition, and an object identification processing unit specifying the processing region based on the differential polarization degree or the brightness sum value depending on whether the predetermined selecting condition is satisfied and identifying plural processing regions that are specified as the processing regions as the image region of the identification target.

Object identification device

An image adjusting device for an on-vehicle camera mounted on a vehicle includes an operations unit configured to input mounting position information regarding a mounting position of the on-vehicle camera on the vehicle; a storing unit configured to store image processing parameters in association with various mounting positions of the on-vehicle camera; a control unit configured to read the corresponding image processing parameters from the storing unit based on the mounting position information input from the operations unit; and an image processing unit configured to process image data obtained by an imaging unit of the on-vehicle camera according to the image processing parameters read by the control unit.

Image adjusting device, image adjusting method, and on-vehicle camera

An image processing device includes a memory interface to read out image data from a memory, and a memory access controller to control reading process of the memory interface so as to keep a number of pixels in a main scanning direction of the image data read out from the memory smaller than a number of pixels in a main scanning direction of a screen to which the image data is output.

Image processing device capable of efficiently correcting image data and imaging apparatus capable of performing the same

An imaging device includes an imaging element that takes an image of a target object and output an image signal corresponding to the image; a storage unit that stores therein a zero-point adjustment reference value; a brightness detecting unit that detects a brightness of the target object; and a reference-value changing unit that changes the zero-point adjustment reference value when the brightness detected by the brightness detecting unit is equal to or lower than a threshold. A zero point in a level of the image signal output from the imaging element is adjusted by using the zero-point adjustment reference value stored in the storage unit.

Growing community of inventors

Kanagawa, Japan

Xue Li