JPS6213158Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a television camera input device that photographs materials with a television camera and inputs them as still images to a graphic display. The present invention relates to a new television camera input device that allows input by using a television camera.

With this type of TV camera input device, when inputting large-area materials such as maps or materials that require detailed observation such as X-ray photographs, the material is divided into parts due to the resolution limitations of the TV camera and graphic display. In some cases, the input data is input as a single file, and then joined when displaying the data without reducing the resolution. Conventionally, in order to meet these demands, it was necessary to use a television camera with low distortion, move the table on which the material was placed with high precision, or
The method used was to input the material in parts by moving the television camera, but this method had the drawback of being extremely expensive overall.

Accordingly, an object of the present invention is to provide a television camera input device that has a simple configuration and allows divided input.

According to the present invention, grid scale glass is printed on the material, with grids each having one square of the minimum size determined by the resolution of the television camera and graphic display, the peripheral distortion of the television camera, the minimum resolution of the material, etc. Place them on top of each other, take pictures of each grid for the range that exceeds one grid, store them in the memory of the graphic display, peripheral storage device, etc., and make sure that the frames of the grid scale glass match when displaying. By synthesizing and displaying the combined images on a graphic display, a television camera input device that can obtain images satisfying the required display resolution can be obtained.

FIG. 1 relates to the present invention and shows a grid scale glass placed on a material, and FIG. 2 is a diagram showing an example of the operation of the present invention. In Figure 1, the grid size is a 40mm square, and 10 grids are printed vertically and 12 horizontally on the back of the plate glass, making the entire grid vertically.
Can be used for materials up to 400mm and 480mm in width, 1/25000
Can be used to input maps. The thickness of the plate glass is 3
mm, and the grid is 0.15 mm thick.

FIG. 2 shows an embodiment of the present invention, in which a grid scale glass 2 is placed on top of a material 1, a camera 3 is mounted on it, and the output of the camera 3 is led to a graphic display device 4. .

Figure 3 shows an example of use when inputting a 1/25000 scale map, and Figures a and b show images of adjacent locations on the map taken separately with a TV camera so that each grid is roughly centered. , the memory of a graphic display, a peripheral storage device, etc. In this case, the photographing method only requires keeping the angle of view (photographing range) of the television camera constant and photographing so that the grid is approximately centered, and positional accuracy of movement of the material or movement of the television camera is not required. FIG. 3c shows the result of displaying the two pictures in FIGS. 3a and 3b on a graphic display by combining them so that the grids match, and the original picture has been restored. Although the above description shows an example of joining two left and right pictures, it is obvious that the same method can be used to join the top and bottom pictures, so the explanation will be omitted.

In this example, we have explained the grid scale glass used when inputting a 1/25000 scale map in sections, but any material can be input in sections by making the grid size match the minimum resolution of the material. is possible.

As explained above, the present invention is useful when photographing large-area materials such as maps or materials that require detailed observation such as X-ray photographs with a television camera and inputting them to a graphic display. Limiting the resolution of television cameras and graphic displays by using grid scale glass printed with a grid with one grid having the minimum size determined by the display resolution, peripheral distortion of the television camera, minimum resolution of the material, etc. Therefore, it is possible to inexpensively provide a television input device that inputs the material in parts and joins them together for display.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of a grid scale glass according to the present invention used to input a 1/25000 scale map, Fig. 2 is a diagram showing an embodiment of the present invention, and Fig. 3
The figure shows an example of use when inputting a 1/25000 scale map and displaying it jointly. A and b indicate the range for inputting adjacent locations, the broken line indicates the entire input range, and the solid line is the grid scale. The scale of the glass is shown, c shows the result of the bonded display, the broken line shows the entire display screen, and the solid line shows the scale of the bonded grid scale glass.

Claims (1)

[Scope of utility model registration request] In a TV camera input device that captures material with a TV camera and inputs it to a graphic display as a still image, the minimum size determined by the resolution of the TV camera or graphic display, peripheral distortion of the TV camera, and minimum resolution of the material, etc. By placing a grid scale glass with one grid on the material and inputting the range including one grid as the shooting range of the TV camera, it is possible to join the divided materials when displaying. Features TV camera input device.