Nissan Motor Company Limited

Yosuke Matsuno

Hidekazu Nishiuchi

Hiroshi Satoh

Jun Matsumoto

Kouki Mitsuishi

An image taking unit takes an image by exposing three color light receivers and an invisible light receiver. The three color light receivers are sensitive to light in an invisible region emitted by an invisible light projector, and concurrently sensitive to the respective three primary colors of light. The invisible light receiver is sensitive to the light in the invisible region emitted by the invisible light projector. A marker pulse generator generates an exposure timing pulse for the image taking unit, and an emission timing pulse for the invisible light projector on the basis of a reference signal. A color image creator creates a color image from outputs from the respective color light receivers. A synchronous detection processor creates a detection image by performing a synchronous detection process on the outputs from the color light receivers and the invisible light receiver by use of the reference signal.

Camera apparatus and image processing method

An image capture apparatus generates synchronous detection images under different exposure conditions in such a way that each synchronous detection image is obtained by subtracting the output values of an image captured with no light projected from the output values of an image captured with light projected, selects one or more pixels from the rest of the pixels at each position of the two or more synchronous detection images under the different exposure conditions excluding the pixel having the lowest output value, and generates a synchronous detection image by using the selected pixels.

Image capture apparatus and image capture method

An image taking unit takes an image by using a specific light projector which emits specific light in a wavelength region corresponding to one of the three primary colors of light and by exposing light receivers which are sensitive to light in wavelength regions corresponding to the three primary colors of light. A marker pulse generator generates an exposure timing pulse for the image taking unit, and an emission timing pulse for the specific light projector on the basis of a reference signal. A color image creator creates a color image from an image taken by the image taking unit. A synchronous detection processor creates a detection image by performing a synchronous detection process on the image taken by the image taking unit by use of the reference signal.

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Atsugi, Japan

Yosuke Matsuno