| 摘要 |
An image stabilizing circuit, capable of stabilizing unstable images, which are produced by hand-trembling of a user recording images with the camcorder, is provided. The image stabilizing circuit comprises a CCD, a second buffer, a motion detector, an image shifting element, a first buffer and an image adding element. The CCD receives light signals from objects, and produces image signals corresponding to the light signals. The second buffer temporarily stores the input image signals for shifting the image signal. The motion detector is provided for analyzing the input image signals to detect the trembling motion of the input images. The image shifting element shifts a frame of an image stored in the first buffer according to an output of the motion detector, and thereby produces a shifted frame comprising a shifted portion of the input image and a remaining portion with no image. The first buffer is provided for storing previous image signals of the second buffer. Finally, the image adding element is used for adding the shifted portion of the image and a portion of the previous image stored in the second buffer, wherein the portion stored in the second buffer corresponds to the remaining portion of the shifted frame, and for producing output images.
|
