Hitachi-kokusai Electric Inc.

Masaya Okada

Wataru Ito

Kazunari Iwanaga

Junichi Togashi

Muneaki Yamaguchi

Yuichiro Komiya

Miyuki Fujii

Yohei Akimoto

Atsushi Sassa

Hiroaki Nakakita

The purpose of the present invention is to provide a technology which adaptively switches video analysis methods according to a congestion situation within a video, and which carries out a suitable video analysis by a limited computational volume. Provided is an image processing device, wherein a congestion estimation unitestimates a congestion situation within a video which is acquired from an image input unit. A control unitswitches methods for video analysis according to the congestion situation. In a situation of low congestion, an image analysis unit for use in normal situationscarries out the video analysis by a basic method. In a situation of high congestion, an image analysis unit for use in congested situationscarries out a high-precision video analysis, such as an analysis which spans a plurality of frames.

Image processing device

A system detects a candidate for an object which intrudes based on images of a visible light camera and a far-infrared camera that monitor the sea, further derives a size, a velocity, an intrusion direction, and linearity, and identifies the object to some extent. Also, the system distinguishes between a boat, a human, and a floating matter based on the luminances or the like in a far-infrared image. In addition, the system observes the periodicity of normal waves on the sea surface at a location without any object by performing the Fourier transform on the image. The accuracy of identification of an object is improved based on the correlation between the motion of waves in a normal state and the motion of the object.

Marine intrusion detection system and method

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Tokyo, Japan

Masaya Okada