JP2645248B2 - Large-size photo comparison device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for comparing and comparing large-sized photographs, and more particularly, to an apparatus for comparing two aerial photographs and confirming the difference.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of grasping the status of urban development and green space protection, a method has been adopted in which aerial photographs of the same area are periodically taken to compare both pictures, and changes in the area are investigated. . The aerial photograph used in this case is a very large one having a length of 90 cm and a width of 70 cm.

In such a conventional method of comparing and comparing two aerial photographs, two aerial photographs are arranged side by side on a large table, and a part of one of the aerial photographs, that is, one area is observed by an observer. After staring and memorizing the image, immediately move the line of sight to the same area in the other aerial photograph next to find the difference or the same point between the two.

[0004]

However, in such a conventional method of comparing and comparing two aerial photographs, the observer moves his body from one photograph to the other due to the large size of the photograph. The eye must be moved up, down, left, and right greatly, so that not only the collation work cannot be performed quickly, but also the fatigue is great, and there is a problem that a collation mistake is caused.

In general, when two objects are compared to find a difference or the same point, the two objects are arranged adjacent to each other,
It is known that looking at two things at the same time is the best way. If two objects are so far apart that they cannot be seen at the same time, the memory of the objects they saw earlier will be lost in the short time that they look at one object and then look at the other. The contrast matching becomes inaccurate.

[0006] The comparison and comparison of two aerial photographs are exactly the same, and since the moving distance of the observer's body or the line of sight from one photograph to the other is large, the memory is inevitably weakened and the concentration power is inevitable. There is a problem that a comparison error is likely to occur due to a decrease, and it has been desired to develop an apparatus capable of performing an efficient comparison.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional problem. When comparing two large photographs, the movement of the observer's line of sight is made as small as possible and the focus is reduced. It is an object of the present invention to provide a large-sized photo comparison / collation apparatus that prevents a decrease in power and prevents the occurrence of a comparison / collation error.

[0008]

SUMMARY OF THE INVENTION The present invention is an apparatus for comparing and comparing two relatively large photographs, and is configured as follows to solve the above-mentioned technical problem. That is, the large-sized photo comparison / collation apparatus of the present invention includes a first roll mounted on a table surface and rotatably supported,
A second roll, which is arranged at an interval diagonally above the first roll and is rotatably supported, is endlessly hung between the first and second rolls, and is spread. A photo support screen for attaching and supporting the large photo, and a gap for taking the other large photo in and out between the first roll and the table surface, and rotating the roll to rotate the photo support screen. The apparatus is moved with the one large-sized photograph, and sequentially compares and collates the lateral contrast-matching area near the first roll with the other large-sized photograph on the adjacent table.

Further, the large-size photo contrasting apparatus of the present invention is provided with a first roll mounted on a table surface and rotatably supported, and spaced apart obliquely above the first roll. A second roll rotatably supported, a photo-supporting screen that is wound around the first and second rolls in an endless manner, and that sticks and supports one large-sized photo; A window forming frame movably mounted on the photo support screen along the longitudinal direction near the first roll, and the other large-sized photograph is put in and out between the first roll and the table surface. A gap, wherein the one large-sized photo attached to the photo-supporting screen is moved by rotating the roll and the window forming frame is moved laterally so that the window is sequentially formed. The comparison verification area adult in a frame and wherein the matching comparison with other large pictures on the table adjacent.

[0010]

According to the large-sized photo contrast matching apparatus of the present invention, the first
Then, one large-sized photograph is fixed on the photograph supporting screen which is hung between the second rolls and displayed by using cellophane tape or the like. Then, one of the two rolls is rotated to move the photo support screen in the vertical direction, thereby moving the large-size photo fixed to the photo support screen. In this way, a part of the large-sized photograph, that is, the comparison matching region is moved to the lowermost position.

On the other hand, the other large-sized photograph is placed in the gap between the first roll and the table, and the position thereof is adjusted so that the comparison / collation area comes immediately before the first roll. As a result, the comparison matching areas of the two large photographs are arranged at adjacent positions. Thereby, the observer can see the two comparison matching regions simultaneously, and can easily confirm the difference or the same point between them.

Also, in a large-sized photo comparison / collation apparatus having a window forming frame movable on the photo-supporting screen along the longitudinal direction in the vicinity of the first roll, the large-sized photo on the screen is converted to the screen. Is moved by the rotation of the roll, whereby the contrasting area of the large-sized photograph is moved to the lowermost position where the window forming frame is located, and the window forming frame is slid into the contrasting area and the contrast is set in the window of the frame. Make sure that the collation area is included. Next, the window forming frame is moved in the horizontal direction by the width of the window, and the next region is compared with the other photograph.

[0013] When the confirmation of all the horizontal areas seen by the horizontal movement of the window forming frame is completed, the roll is rotated to move the photo support screen upward or downward by the window vertical width of the window forming frame. Simultaneously with the movement, the other large-sized photograph is also moved by being pulled out or pushed forward, and the next two-sided comparison area is made adjacent, and the above-described comparison is repeated.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the configuration of a large-size photo contrasting apparatus according to the present invention. FIGS. 1 and 2 show a large-sized photo contrasting apparatus 1 according to an embodiment of the present invention. The large-sized photo contrasting apparatus 1 includes an H-shaped support frame 2 having a width equal to or larger than the width of a large-sized photograph.

Before and after the support frame 2, first and second rolls 3, 4 extending in the width direction of the support frame are arranged.
Both ends of each of the rolls 3 and 4 are on the side frame 2 of the support frame 2.
It is rotatably supported by a fixture 5 fixed to a.

The support frame 2 is hinged at its front end to the front end of a gantry 7 placed on the table surface 6,
A tilt rod 8 whose ends are detachably connected to the side frame body 2a of the support frame 2 and the side surfaces of the gantry 7 in the vicinity of the respective intermediate portions.
The support is inclined.

Extra mounting screw holes 9 and 10 for connecting each end of the tilt rod 8 are formed on each side surface of the support frame 2 and the gantry 7, and one of the mounting screw holes 9 and 10 is provided.
By connecting the tilt rod 8 by selecting
The inclination angle of the support frame 2 can be changed.

As described above, the support frame 2 is inclined so that the first roll 3 is located below and the second roll 4 is located above it. , And the second roll side is referred to as an upper end side. On each of the upper and lower rolls 3 and 4, an elongated photo support screen 11 having a width larger than the width of the large-sized photograph is hung endlessly and arranged so as to cover the support frame 2 between the rolls 3 and 4. ing.

At the lower end of the support frame 2, a backing plate 19 is attached so as to bridge between the side frames 2a. The backing plate 19 is attached for the purpose of flatly supporting the above-mentioned photographic support screen 11 at this portion, that is, at the lower end side of the support frame 2. On the surface of the backing plate 19, a frame 13 forming a square window 12 is arranged so as to be located on the photo support screen 11.

The window forming frame 13 has a guide rod 15 whose upper frame portion is supported at both ends by mounting brackets 14 fixed to the side surfaces of the support frame 2 and extends along the longitudinal direction of the first roll 3. It is movably mounted and supported by a slider bracket 16 or the like. The lower edge of the window forming frame 13 is located adjacent to the first roll 3 as is clear from FIG.

Further, the gantry 7 has a width longer than the width of the roll as shown in FIG. 2, and legs 17 are attached to the four corners of the bottom surface, whereby the first roll 3 and the gantry 7 are attached. Are both spaced from the table surface 6 by an interval 18. The height of the legs 17 forming the space 18 is at least the first
Any size that allows one large photograph to be inserted under the gantry 7 from below the roll 3 along the table surface 6 may be used.

Next, a description will be given of a method of using the large-sized photo contrast matching apparatus 1 in the above-described embodiment. One large photograph is fixed on the photograph support screen 11 stretched on the support frame 2 by being wound around the first and second rolls 3 and 4 endlessly using cellophane tape or the like. Next, the first roll 3 is rotated to move the photo support screen 11 in the vertical direction, and to move a part of a large-sized photo together with the photo support screen 11.

In this manner, a part of the large-sized photograph, that is, the comparison collation region, is defined as the first region where the window forming frame 13 is located.
Is moved to the lowermost position of the support frame 2 near the roll 3 and the window forming frame 13 is slid to the desired comparison / matching area so that the comparison / matching area enters the window 12 of the frame 13.

The support frame 2 is formed of an H-shaped wooden frame or the like as described above, but forms a part of the support frame 2 in a region where the window forming frame 13 is disposed and moves laterally. Since the backing plate 19 is disposed, the photograph supporting screen 11 in the window 12 of the window forming frame 13 is provided.
Is kept flat, so that the pictures supported by it are also kept flat without distortion or dents in this area, making it very easy to see.

On the other hand, the other large-size photograph is placed in the space 18 between the first roll 3 and the table surface 6 and its position is adjusted so that the comparison area is located immediately before the first roll 3. I do. As a result, the comparison matching areas of the two large photographs are arranged at adjacent positions. This allows
The observer can see the two contrast matching areas simultaneously,
It is easy to confirm the difference or the same point between the two.

Next, the window forming frame 13 is moved in the horizontal direction by the width of the window 12, and the next area is compared with the other photograph. Then, when the confirmation of all the horizontal areas seen by the horizontal movement of the window forming frame 13 is completed, the first roll 3 is rotated to move the photo support screen 11 up and down by the vertical width of the window 12 of the window forming frame 13. At the same time as moving in either direction, the other large-sized photograph is also moved by pulling it out or pushing it in, thereby making the next two-sided comparison area adjacent and repeating the above-mentioned comparison.

According to the large-sized photograph comparison / collation apparatus 1 of the embodiment, since the regions to be compared / matched in the two large-sized photographs are adjacent to each other at the front and rear positions, the observer has two objects. The contrast matching area can be viewed at the same time, and the contrast matching area of the large photograph attached to the photograph supporting screen 11 is located within the window 12 of the frame 13, so that the observer's concentration is increased, and as a result, the contrast matching area is increased. Work can be done easily, and collation errors can be eliminated.

If the guide rod 15 movably supporting the window forming frame 13 is provided with a scale that makes the horizontal width of the window 12 one pitch, the lateral movement of the window forming frame 13 is very accurate. Can be. Also, the photo support screen 11
For the movement of the first roll 3, a small crank lever (not shown) for manual operation may be provided at the end of the first roll 3, or an electric motor may be attached to only one end of the roll.

With respect to the large-sized photo contrast matching apparatus of the present invention,
Although the comparison and comparison of aerial photographs have been described as an example, the present invention is not limited to the comparison of aerial photographs. Needless to say, However, it can be used very effectively for basic surveys in urban planning.

[0030]

As described above, according to the apparatus for comparing and comparing large-sized photographs of the present invention, the comparison and comparison areas of the two large-sized photographs are always located adjacent to each other, so that the observer can perform two comparisons and comparisons. The region can be viewed at the same time, and as a result, there is almost no movement of the observer's line of sight and the concentration is increased. Therefore, even if the comparison and collation work is performed for a long time, the fatigue is reduced, and the occurrence of collation errors is reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing a large-sized photo contrast matching device according to an embodiment of the present invention.

FIG. 2 is a front view showing a part of the large-sized photo contrast matching apparatus shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Large-sized photo contrasting collation device 2 Support frame 3 First roll 4 Second roll 6 Table surface 7 Stand 11 Photo support screen 12 Window 13 Window forming frame 18 Interval 19 Backing plate

Claims (2)

(57) [Claims] 1. A first roll mounted on a table surface and rotatably supported, and a second roll disposed obliquely above the first roll and spaced apart from the first roll and rotatably supported. A roll, a photo-supporting screen that is wound around the first and second rolls in an endless manner, and is attached to and supports one large-sized photo; and a photo-supporting screen between the first roll and the table surface. And a gap for taking in and out the other large-sized photo, rotating the roll to move the photo support screen together with the one large-sized photo, and adjoining the lateral contrast matching area near the first roll. A large-sized photo comparison / collation device, which sequentially performs comparison / collation with another large-sized photo on the table. 2. A first roll mounted on a table surface and rotatably supported, and a second rotatably supported rotatably disposed diagonally above the first roll. A roll, a photo support screen that is stretched and wound around the first and second rolls in an endless manner, and that sticks and supports one large-sized photo, and a longitudinal direction near the first roll. A window forming frame movably mounted on the photo support screen along the gap, and a gap for taking in and out the other large-sized photo between the first roll and the table surface. The one large-sized photo attached is moved by the rotation of the roll and the window forming frame is moved in the horizontal direction, so that the comparison matching area in the window forming frame is sequentially adjacent. A large-sized photo comparison / collation apparatus, wherein the large-sized photo is compared with another large-sized photo on the table.