Hitachi-kokusai Electric Inc.

Atsushi Sassa

Kazunari Iwanaga

Yohei Akimoto

Junichi Togashi

Wataru Ito

Muneaki Yamaguchi

Yuichiro Komiya

Tomomi Takada

Takashi Yoshida

Masaya Okada

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

The present invention provides a system for visualizing the congestion degree of an entire facility using a monitoring camera. The system detects a crowd from a monitoring camera video and derives the magnitude (number of people) of the crowd from the edge amount thereof, and thereby estimates a congestion state in a range of camera video. The system also calculates a human flow (amount of movement of people) on the basis of a number of passing people counter and the magnitude and movement speed of the crowd, etc., and estimates the number of people in an area other than the range of camera video on the basis of a modeled crowd behavior pattern. The model is constructed by selecting a distribution function and a parameter thereof by a statistical model selection technique such as a Bayesian Information Criteria (BIC). The congestion state is plotted on a map, allowing the congestion state of an area of interest to be grasped at once.

Congestion-state-monitoring system

High-resolution image data and large-capacity data are transmitted as transmission data. A camera apparatus includes a fixing part and a moving part rotating about a rotary axis. The fixing part includes at least a first wireless section, a first signal processing section, and a power source section. The moving part includes at least a camera section, a second signal processing section, a second wireless section, and a driver section for driving the camera section. The first wireless section is coupled with the second wireless section using a waveguide tube to propagate an electric wave. The waveguide tube includes a waveguide path aligned with a center of the rotary axis of the moving part.

Camera apparatus

Growing community of inventors

Tokyo, Japan

Atsushi Sassa