| 摘要 |
A position detecting section (20) detects the position of the viewpoint of the operator based on the output of the bisected light beam photodetector (2) of an eyeball movement measuring instrument. A position processing section (21) determines the central position of the vicinity area of the viewpoint based on the information from the section (20), and a size processing section (23) determines the size of the vicinity area based on the output of a lever (18) for changing the size. Video signals (10) are inputted to a code quantity reducing section (13) after the signals are encoded by means of a compressing section. A system control section (30) reduces the code quantity by controlling the section (13) so that the code quantity assigned to the other area than the vicinity area is smaller than the code quantity assigned to the vicinity area. Therefore, image data are encoded and compressed in real time in a limited code quantity and, at the same time, images having image qualities which are visually improved as high as possible to the user can be obtained at the time of encoding the image data. |
