Mitsubishi Denki Kabushiki Kaisha

Shigeki Tsuji

Yoshihiro Nishida

Takashi Nakajima

Shuji Sotoda

An image pick-up apparatus having an optical zoom mechanism and an electronic zoom mechanism, wherein the optical zoom mechanism and the electronic zoom mechanism are adjusted in accordance with information on a position and size of an area recognized as an object (a human face). An image pick-up apparatus in which the control gain for restoring the rotating lens barrel to a reference position is increased by static detection of a housing, thereby attaining a compatibility between a high vibration-proofing performance and a high-accuracy origin restoration. A motion vector detection apparatus, in which by making the motion vector detection area movable, a motion vector is detected without any feeling of disorder regardless of the image pattern. An image swing correction apparatus is also disclosed in which the phase of a read clock of a video memory is adjusted in accordance with the result of detection of a time-base error of the video signal, and read out by a clock of regular intervals. The time base of the video signal is thus corrected while at the same time moving the read position of the video memory in accordance with the result of detection of the swing amount of the whole image, thereby correcting the swing of the whole image.

Image pick-up apparatus for detecting and enlarging registered objects

A moving vector detecting apparatus includes a horizontal low-pass filter for extracting a low-pass component in a horizontal direction of an input image signal; a first moving vector detector for detecting a moving vector in a vertical direction of an image, by an inter-frame correlation between a representative point and a pixel on a vertical straight line through the representative point, from the output signal of the horizontal low-pass filter; a vertical low-pass filter for extracting a low-pass component of an input image signal in a vertical direction; and a second moving vector detector for detecting a moving vector in a horizontal direction of the image, by an inter-frame correlation between the representative point and a pixel on a horizontal straight line through the representative point, from the output signal of the vertical low-pass filter. Therefore, the horizontal component of the moving vector is detected from the signal component having a high vertical correlation and the vertical component of the moving vector is detected from the signal component having a high horizontal correlation both by the one-dimensional moving vector detector, with the result that the moving vector can be detected with a few accumulated addition tables in short calculating time.

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Nagaokakyo, Japan

Shigeki Tsuji