摘要:
A movement vector detecting device is provided with a movement vector detecting circuit for detecting a movement vector in each of blocks obtained by dividing an image frame, an edge number detecting circuit for detecting the number of edges in each of the blocks, and an evaluation circuit for evaluating the reliability of the movement vector value detected by the movement vector detecting circiut, based on the number of edges detected by the edge number detecting circuit.
摘要:
An image processing apparatus comprising a signal conversion circuit for changing input/output characteristics in accordance with a shift position of an image is arranged between a detection circuit for detecting a relative movement between a camera and an object to be photographed and an image shift circuit for shifting the image in accordance with a detection result of the detection circuit.
摘要:
A shakeproof camera includes a focus detection circuit for detecting a focus state from an image pickup signal output from an image pickup element, a luminance detection circuit for detecting a luminance from the image pickup signal, a shake detection circuit for detecting a shake vector of an image from the image pickup signal, and a control circuit for fetching outputs from the above detection circuits and performing focus control, exposure control, and shakeproof control. The detection circuits outputs the detection results during a vertical blanking period. The control circuit preferentially performs an arithmetic operation for shakeproof control on the basis of an output from the shake detection circuit and then performs other control operations.
摘要:
A movement detection apparatus comprises a first circuit for detecting a difference signal between first and second image signals, a second circuit for integrating the difference signal detected by the first circuit, a third circuit for detecting respective image signal levels of the first and second image signals when the image signals reach a predetermined level, a fourth circuit for detecting a difference signal of plural detection results given by the third circuit, and a fifth circuit for dividing the second circuit output signal by the fourth circuit output signal to detect a signal corresponding to image movement.
摘要:
A movement vector detecting apparatus includes an area decision circuit for calculating a movement vector from a signal filtered through a first preprocessing filter and deciding an image area for obtaining a target movement vector, and a movement vector operation circuit for calculating a movement vector associated with the image area in accordance with a signal filtered through a second preprocessing filter and under the control of the area decision circuit.
摘要:
The present invention relates to an image processing device, consisting of filter device which extracts predetermined spatial frequency components from an input image signal, and a binarizing circuit which binarizes the output of the filter device by assessing a zero level as a threshold level, as well as the image vibration correcting device which detects a movement vector of an image by use of the image processing device and thus corrects the image vibration.
摘要:
A movement detection apparatus comprises a first circuit for detecting a difference signal between first and second image signals, a second circuit for integrating the difference signal detected by the first circuit, a third circuit for detecting respective image signal levels of the first and second image signals when the image signals reach a predetermined level, a fourth circuit for detecting a difference signal of plural detection results given by the third circuit, and a fifth circuit for dividing the second circuit output signal by the fourth circuit output signal to detect a signal corresponding to image movement.
摘要:
A movement vector detecting apparatus comprising: a movement vector detecting circuit for dividing an input image into a plurality of blocks and for detecting a movement vector every block; and a movement vector calculating circuit for extracting areas which perform the same movement from the movement vectors from the movement vector detecting circuit and for calculating movement vector values in such areas by executing a weight averaging process according to position information which occupies in the area of each of the blocks. A video camera having such a movement vector detecting apparatus is provided.
摘要:
An image pick-up apparatus includes a detection circuit for detecting vibration of the apparatus body, a correction system for correcting the vibration by shifting an image, and a control circuit for controlling driving of the correction system in accordance with an output of the detection circuit. A closed loop frequency characteristic is constituted as a notch filter, and a blocking frequency of the notch filter is made variable on the basis of changes in the detected vibration frequency.
摘要:
An image processing system comprises an image shifting circuit for shifting an image by processing an input video signal, a scene-change detecting circuit for detecting the presence or absence of a scene change in the input video signal, and a control circuit for controlling the amount in which the image is shifted by the image shifting circuit, according to the presence or absence of the scene change detected by the scene-change detecting circuit.