Asahi Kasei Kabushiki Kaisha

Asahi Kasei Emd Corporation

Asahi Kasei Corporation

Ken Ishihara

Yoshihiro Noguchi

Keiji Shimada

Hideaki Sasahara

Nobuyoshi Ukaji

A face portion detection device, a behavior content classification device, a speech content classification device, a car navigation system, a face direction classification device, a face portion detection device control program, a behavior content classification device control program, a face portion detection device control method, and a behavior content classification device control method are provided for appropriately classifying a behavior content of the object person from a captured image including the face of the object person. A speech section detection deviceincludes an image capturing unit, a data storage unit, an image processing unit, a lip region detection unit, feature extraction unit, and a speech section detection unit. The lip region detection unituses a dedicated SVM to detect a lip region from a captured image, and the speech section detection unituses features of an image of a detected lip region and a dedicated HMM to detect a speech section.

Device, program, and method for classifying behavior content of an object person

An AGC control section () has a first operation mode for controlling the gain of a variable gain amplifier () to maintain the amplitude of the sync signal measured by a sync signal amplitude measuring circuit () at a constant value, and a second operation mode for preventing the gain from being increased even when the amplitude of the sync signal measured by the video signal processing circuit () is smaller than the predetermined first reference value and reducing the gain of the variable gain amplifier () only when the amplitude of the video signal exceeds a predetermined second reference value. During operation in the first operation mode, when the amplitude of the sync signal is smaller than the predetermined first reference value and the amplitude of the video signal is greater than the predetermined second reference value, the mode is switched to the second operation mode. During operation in the second operation mode, when the amplitude of the sync signal becomes not less than the predetermined first reference value, the mode is switched from the second operation mode to the first operation mode.

Automatic gain control circuit

A Y/C separator improving characteristics of dot crawl elimination and cross-color interference elimination even at a sampling frequency unequal to an integer multiple of a color subcarrier frequency of an NTSC television signal. A received composite color television signal is quantized by a clock signal with a frequency synchronized to the horizontal sync signal of an input signal. Chrominance component values are extracted in various directions of a target sample by using neighboring samples of the target sample. The chrominance component is obtained by selecting and outputting the extracted chrominance component values in accordance with correlation values of the corresponding samples from which the color component is removed. The calculation of the chrominance component extraction value is carried out by detecting the phase rotation angle of the color subcarrier signal per clock near the target sample, and in response to the detected value.

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Atsugi, Japan

Ken Ishihara