JPH0520694B2 - - Google Patents

Description

Detailed Description of the Invention The jewels referred to in this specification collectively refer to natural jewels, artificial (synthetic) jewels, inorganic jewels, organic jewels, etc. Jewelry refers to the above jewels and precious metals alone or , a general term for ornaments used in combination. The present invention relates to a method for identifying gemstones and jewelry (hereinafter simply referred to as gemstones) (determining whether they are the same item or not). When a specified number of people repeatedly select and use one or more types of jewelry from among a specified number of jewelry, it is particularly important to check whether the loaned jewelry is the same as the returned jewelry. This judgment must be accurate. The present inventor explained above that, prior to lending, the physical quantities of the jewelry are measured, the specifications are stored as data, and then the jewelry is lent, and the returned jewelry is stored as described above. We have presented a method and device for identifying the gemstone by comparing it with measurement data of physical quantities, but this time we will further record the shape, hue, etc. of the gemstone on a video device and save it, and then identify the gemstone. The lent and returned jewelry has a shape that reproduces the saved recording screen.
The present invention aims to provide an identification device that identifies gemstones by comparing hues and the like.

Hereinafter, the method for identifying gemstones and the effects thereof will be explained in detail based on the drawings. That is, FIG. 1 is an example of a method for recording jewelry. In the figure, a standard light source (daylight light source, color temperature 4800K) 1 and a light source 2 with a wavelength of ultraviolet light (1000 to 3888 Å) are arranged to give a uniform amount of light to the jewelry 3, and the same amount of light is measured using a light meter (Lexmeter). 4, and the light source is controlled by a light amount control section 5 so that the light source always emits a constant amount of light. In addition, the above light source includes
To facilitate visual inspection of the hue of jewelry, a standard light source with spectral characteristics similar to daylight color in the visible light range is usually used; however, when visually inspecting jewelry containing fluorescent components, UV light is used to see the pigments. The jewel 3 is placed on the sorting pad 6 (white and non-fluorescent, which does not reflect light).

There is a videocon 7 as a recording unit that can rotate 180 degrees around the jewel 3, and in front of it there is a square mask 8 made of a highly transparent plate and a zoom lens 9. The vidicon controls the aforementioned zoom lens 9 using an electronic viewfinder, and automatic focus adjustment of the vidicon 7 is performed.

The square mask mentioned above is drawn every 1cm square to clarify the reference point where the jewelry to be identified is always placed in the same position, and it can be removed from the front of the vidicon if necessary. .

The operation will be explained next. First, the ultraviolet light source is turned off, the square mask 8 is also removed from the front of the vidicon 7, and while the image receiving surface of the vidicon 7 is facing the jewel in this state, the Rotate the jewel at a predetermined angle (e.g. 90 degrees to the right, 45 degrees to the right) while maintaining a certain distance.
The gemstone is imaged from 45 degrees, 0 degrees, 45 degrees to the left, 90 degrees, etc.). The focus adjustment at this time is performed by the zoom mechanism described above.

In this way, the shape and hue of the gemstone in each direction are recorded on a recording medium (such as a videotape) via a recording head. Next, the square mask 8 is positioned in front of the vidicon 7, and the same operation as last time is performed. As a result, overlapping squares of 1 cm square are recorded on videotape over the shape of the gemstone. Then, the standard light source described above is switched to an ultraviolet light source, and the video is recorded on a videotape using the same means as described above.

Then, at the same time as recording or by dubbing, a search signal, an index number signal, an information signal, etc. are input to a recording medium (such as a videotape) and recorded on the video tape. FIG. 2 shows the state of the input signal. This figure shows the magnetic pattern of a video tape in a standard rotating two-head system.
Vertical blanking 14, control track 1
In addition to 5, there are a CH1 audio track 16 and a CH2 audio track 17. A search signal (cue signal) 18 is input to the position of this CH1 audio track, ahead of the position of the recorded video track, and then an 8-bit binary number is input as an index number signal.

Further, the information signal is superimposed and input as characters and codes to the CH2 audio track 17 or the image track AaB. In this way, the recorded images are stored and, if necessary, the identified gemstones are compared, their shape and hue, or sent over the line via an interface and modem.

Next, we will explain how to compare the images recorded on this videotape with the returned jewelry.

As shown in Figure 1, the gemstone to be compared is a sorting lamp located in a place where a standard light source (daylight light source, color temperature 4800K) 1 and an ultraviolet light source 2 are arranged to give a uniform amount of light to the gemstone. placed on top. The same amount of light is collected by the light meter 4, and is always controlled by the light amount control section 5 to be the same amount of light as the amount of light at the time of recording.

When the recording tape is in the same building as the jewel to be compared, the index number is keyed into the video device mentioned above, and when the device is activated, the tape is fed at high speed (10x speed). Then, based on the tape cue signal, the binary number (8 bits) of the index number is temporarily stored in the storage unit in the video device, and compared with the binary number specified by keying, whether it is the same number or not. For example, at that position, the videotape advances at normal speed and then stops. If the same number does not exist, the temporarily stored index number is written each time by the cue signal, and this operation is repeated until the numbers match. Then, the contents of the stopped tape are projected on the cathode ray tube surface of the video device as the first screen.

In this way, the identified gemstone is compared in shape and hue with the gemstone image on the CRT surface. When the first screen is compared, the second screen is reproduced by pressing the step button on the video device. In this way, the shape and hue from each direction are sequentially compared, and furthermore, the size is also compared using the line scale of the square mask described above.
In addition, in order to compare the video screen input from an external line with the returned jewels, turn on the switch on the modem of the video device, specify the index number to the central computer, and check the number. If a request is made to transmit an image screen, the screen will be transmitted over the line. This screen is recorded on a video recording card or tape in the video device and then compared by means similar to those described above.

Furthermore, if necessary, it is possible to enlarge part or all of the image on the CRT.Also, using a penlight, etc., you can ask questions to the information on the CRT and have the answers answered. It is possible to obtain it from a computer and project it onto a cathode ray tube.

In addition, in the above explanation, the shape and hue of the gemstone were recorded using a standard light source and an ultraviolet light source.
By recording the gemstone and comparing it under the same type of light source, a more accurate comparison can be made depending on the type of gemstone.

Further, in the above description, a magnetic medium was used as the recording medium, but it is clear that similar actions and effects can be obtained by recording on other media by laser beam search.

In this way, the apparatus of the present invention can manage a large number of pieces of jewelry as image information taken by a video device, and as data with identification numbers added thereto. With this, when jewelry is lent out and returned, the shape and hue can be easily and quickly changed by inputting the identification number pre-attached to the lent jewelry and reproducing the image. There are effects that can be compared.

Furthermore, when comparing gemstones, changing the type of light source has the effect of making more accurate identification possible.

Also, if the rental location and return location are far apart,
By simply transmitting the recorded screen of the jewelry through the line, there is an effect that the jewelry lent out without any trouble can be easily compared with the jewelry before being lent out.

In addition, since it does not require a skilled person, it has the effect of contributing to popularizing the ownership and use of jewelry, diversifying its use, and lowering the price.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram for explaining one embodiment of the present invention, and FIG. 2 is an explanatory diagram for explaining the tape pattern. 1... Standard light source, 2... Ultraviolet light source, 3... Jewelry, 4... Light meter, 6... Sorting butt, 7
...Visicon, 8... Square mask, 9... Zoom lens, 10... Fulcrum.

Claims (1)

[Claims] 1. A device for identifying a gemstone or jewelry based on an image of the gemstone or jewelry captured and recorded by a video device, which uses a light source arbitrarily selected from a standard light source or an ultraviolet light source to identify the gemstone to be identified. or a light irradiation means for irradiating the jewelry to be identified; a light amount control means for controlling the amount of light of the light irradiation means to a constant amount; and a photograph of the gemstone or jewelry irradiated by the light irradiation means, converted to an electrical signal, and outputted. an image recording and reproducing means that records the image signal outputted by the image capturing means on a recording medium and reproduces and outputs the once recorded image signal as necessary; and an image signal outputted by the image recording and reproducing means. and an information input means for inputting and recording various information together with a pre-recorded image signal of the jewel or treasure decoration onto the recording medium of the image recording and reproducing means as an image on a cathode ray tube. A video-based identification device for gemstones and jewelery ornaments, characterized in that: