JP3561871B2 - Synthetic image creation device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a composite image creating apparatus that creates a composite image of an image of a subject such as a person and various kinds of background images prepared in advance, and prints and outputs the image on an output medium such as a sticker as necessary. The present invention relates to a configuration of a light source behind a subject when creating a combined image by a chroma key combining method.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a synthetic image printing apparatus found on the street, for example, an apparatus described in Utility Model Registration No. 3034012 is known.
[0003]
In this conventional apparatus, a separately prepared frame image such as a background image, a frame image, and a character is combined with a photographed subject's upper body image or face image and provided to the user in the form of a print sticker.
[0004]
However, in this conventional apparatus, since only the upper body or the face portion is photographed as the image of the user (subject), an interesting image with a desired pose in the whole body is printed out. There was a problem that it was not possible.
[0005]
Therefore, the applicant of the present invention takes a whole body image from the head of the subject to the feet, extracts the outline of the whole body image by chroma key processing, and combines the whole body image at an arbitrary position of the background image. A composite image printing apparatus for printing out has been proposed (Japanese Patent Application No. 10-374879).
[0006]
In this apparatus, a blue surface light emitting source is placed on the back side of the subject, and the shadow density of the subject formed by the illumination light applied from the front of the subject is reduced or reduced to such an extent that the contour of the subject can be accurately extracted. The object image is erased, and the camera can capture an image of the subject without shadow or with a shadow density that can be ignored for extracting the contour of the subject. This is because when the shadow of the subject has been formed, the contour of the subject cannot be accurately extracted. Therefore, in such a composite image printing apparatus, the illumination light of appropriate brightness is emitted from the front side of the subject, and the shadow density of the subject itself is displayed on the back side of the subject. It is necessary to irradiate a blue back light with a brightness that is reduced or erased to an extent that can be accurately extracted.
[0007]
[Problems to be solved by the invention]
However, in the conventional apparatus, a single blue back light source is used to form a back light for reducing or eliminating the density of a shadow formed on the back side of the subject so that the contour of the subject can be accurately extracted. Therefore, a subject having the same color and brightness as the blue background light from the blue background light source or an object (e.g., clothing, belongings) possessed by the subject is regarded as a "background". The outline of the portion is not extracted. As a result, such a portion becomes transparent, that is, the same as a non-existent one, and when combined with a background image such as a landscape photograph prepared in advance in an image memory, the blue portion of the subject has a landscape photograph or the like. However, there is a problem that the image is synthesized as if part of the file was overwritten.
[0008]
The present invention is intended to solve such a problem, and provides a composite image creating apparatus capable of creating a composite image having no missing part or missing part regardless of the color of a subject including personal belongings. It is in.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an illumination device that irradiates a back light of a predetermined saturation and brightness from the back side and the floor side of a subject entering a shooting room, A composite image creating apparatus including a camera that captures a full-body image of the subject and a control device that has an image processing unit that composites a subject image captured by the camera and a background image selected by a user using a chroma key combining method. The illumination device is configured by a surface light source device that irradiates the subject with the back light, and a dimming device that controls the brightness of the back light emitted from the surface light source device,
The surface light source device,
A light guide plate of a predetermined thickness, which is formed of a translucent material and has a surface that emits back light to the subject as a light emitting surface, and a reflector formed on a surface of the light guide plate that faces the light emitting surface, A plurality of light sources that enter light of a predetermined color from two side directions of the light guide plate, and a reflection surface that reflects light incident from the light source between the reflection plate and the reflection surface, A reflection pattern that transmits light from the transmission surface on which the reflection surface is not formed to the light emission surface, and the density of the reflection surface of the reflection pattern is determined based on the incident position of incident light from the light source. It is characterized in that it is formed so as to become denser and coarser toward the center .
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an embodiment of a composite image creating apparatus according to the present invention, and FIG. 2 is a side view seen from the direction of arrow A in FIG. , A floor panel 3 and a roof section 4, and the main body housing 1 and the rear housing 2 are connected to each other at a predetermined distance by a connecting member of the floor panel 3 and the roof section 4. The space between the main body housing 1 and the rear housing 2 serves as a passage 5 for a subject to enter the rear housing 2 and can pass in the depth direction of the drawing.
[0012]
FIG. 3 is a perspective view showing the appearance of the main body casing 1, and FIG. 4 is a front view. The camera 7 capable of photographing the whole body image of the subject is displayed on the main body casing 1, and the photographed subject image is displayed. Display device 8, a control device 9 including image processing means for synthesizing a photographed subject image and a background image such as a landscape photograph selected by a user using a chroma key synthesizing method, and a printer 10 for printing and outputting the synthesized image And main illumination devices 11A, 11B, and 11C for irradiating illumination light of a predetermined brightness to the front of the subject, a billing device 12, and a speaker 13 are accommodated. The main unit housing 1 is movable by caster rolls 14 arranged on the bottom surface. Further, a touch panel is provided on the surface of the display device 8, and by pressing or touching the position of the menu or icon displayed on the display screen, a function assigned to the menu or icon at that position can be activated. It has become.
[0013]
On the other hand, as shown in the plan view of FIG. 5 (a) and the side view of FIG. 5 (b), the rear housing 2 is illuminated with illumination light from the main illumination devices 11A to 11C. Is opened and has a space capable of accommodating a subject 20 to be photographed, and back light of a predetermined saturation and brightness is emitted from the back side and the floor side of the subject 20 entering the photographing room 18. Secondary lighting devices 19A and 19B are provided. The auxiliary lighting devices 19A and 19B selectively extract blue light or green light, for example, or uniformly emit light of these combined colors in order to extract the contour of the subject image using the chroma key combining method. It is composed of a luminous body and eliminates shadows generated on the back side of the subject 20 and on the floor at the foot. Note that the slave lighting devices 19A and 19B can be configured by combining surface illuminants of any size. Further, the surface light emitter may emit light by itself, or may consist of a member forming a surface and a member that emits light.
[0014]
Hereinafter, the slave lighting devices 19A and 19B will be described in detail.
FIG. 6 is a diagram showing a first specific example of the auxiliary lighting devices 19A and 19B, and is a cross-sectional view when the fluorescent tube is cut in the radial direction. In this example, a unit for arranging two light sources 191 and 192 such as fluorescent tubes having different emission colors in the same direction as the back light irradiation direction B and reflecting light emitted from these light sources 191 and 192 by a reflector 193 is provided. Two rows are provided, and the light reflected by the reflection plate 193 of each of these units is reflected and scattered by the reflection plate 194 provided oppositely as shown by a dashed arrow, and then guided in the back light irradiation direction, The light-emitting surface 195 provided on the back light irradiation exit surface is configured to irradiate the subject 20 with uniform brightness and color over the entire surface. The light emitting surface 195 can be made of, for example, a “matte milky white” resin member. In addition, each of the light sources 191 and 192 may emit light in a unique color by the fluorescent tube itself, or may be configured by winding a filter of a unique color around the fluorescent tube. The reflectors 193 and 194 and the light emitting surface 95 constitute a surface light source.
[0015]
FIG. 7 is a circuit diagram showing an example of a lighting circuit of the light sources 191 and 192. Switches 701 and 702 for selectively lighting the light sources 191 and 192 and inverters 703 and 704 for adjusting brightness are provided. Each of the light sources 191 and 192 is individually or simultaneously selected and turned on by the switches 701 and 702 to emit light of the light emission color of the light source 191 or a combined color of the light sources 191 and 192, and to adjust their brightness. The control is performed by individually inputting dimming signals to the inverters 703 and 704. In this case, it is desirable that the brightness is such that the color from the light source is not reflected on the clothes of the subject 20 or the like. Further, at the time of lighting, it is desirable to shift the lighting drive timing of each of the light sources 191 and 192 by, for example, about 0.5 second in consideration of the rush current.
[0016]
FIG. 8 shows both a cross-sectional view and a circuit diagram showing a second example of the slave illuminating device. What is different from FIG. 7 is that the light sources 191 and 192 are arranged in a direction perpendicular to the irradiation direction. After the light (direct light) emitted from the light sources 191 and 192 and the light reflected by the reflector 194 are attenuated by the neutral density filter 196, the object 20 is irradiated from the light emitting surface 195. It is. Also in this example, dimming inverters 801 and 802 and switches 803 and 804 for selective driving are provided for each light source.
[0017]
6 to 8 can be applied to both the slave lighting devices 19A and 19B, but are preferably applied to the slave lighting device 19A requiring a large area. That is, since the slave illuminating device 19A needs to have a size that covers the height and the width of the subject 20, the configuration using the fluorescent tube is lower in cost and has a larger area as shown in FIGS. This is because it can be secured. On the other hand, since a size in the depth direction is required, when the present invention is applied to the secondary lighting device 19B on the floor, the height from the floor is increased, and a step is generated between the floor and the floor, which becomes a walking obstacle. .
[0018]
FIG. 9 is a view showing a specific example suitable for application to the sub-illumination device 19B on the floor, and is a cross-sectional view when the fluorescent tube is cut in the radial direction. In this example, fluorescent tubes 902, 903 and 904, 905 having different emission colors are arranged on two side surfaces of a light guide plate 901 having a predetermined thickness, and light emitted from these fluorescent tubes 902 to 905 is guided. A light plate 901 uniformly guides the light-emitting surface 907 to irradiate the subject 20. The fluorescent tubes 902 to 905 are housed in the reflection box 908 so as to concentrate light on the light guide plate 901.
[0019]
As shown in the plan view of FIG. 11, a pattern 909 for reflection and light shielding whose density increases from dense to coarse from the edge to the center is printed on the light emitting surface 907 of the light guide plate 901. The uniform light amount is obtained. That is, at positions close to the fluorescent tubes 902, 903 and 904, 905, since the amount of light is large, as shown in FIG. 11, the density of the reflection / shielding surface 1202 is high (in FIG. 11, the density of the transmission surface 1201 is low). And a pattern in which the density of the reflection surface and the light shielding surface 1202 becomes lower toward the center (in FIG. 11, the density of the transmission surface 1201 becomes higher) is printed. Irrespective of the light emission, light of uniform brightness can be output from the light emitting surface 907. The light guide plate 901 is a transparent material such as acrylic. In this configuration, reflection is repeated by the reflection plate 906 and the pattern 909 on the light emitting surface 907 side, and uniform light is obtained from the end to the center of the light guide plate 901 on the light emitting surface 907 side. The reflection box 908 has an opening at a portion in contact with the light guide plate 901, and irradiates the light from the fluorescent tubes 902, 903 and 904, 905 only in the direction of the light guide plate 901. The fluorescent tubes 902 and 904 emit light of the same color (for example, blue light), and the other fluorescent tubes 903 and 905 emit light of the same color (for example, green light) different from the fluorescent tubes 902 and 904.
[0020]
In the light source configured as described above, the lighting control of each fluorescent tube is performed by the same lighting circuit as that shown in FIGS.
[0021]
FIG. 10 is a diagram showing another specific example, in which fluorescent tubes 1101 and 1102 that do not emit light of a specific emission color by themselves are provided in reflection boxes 1103 and 1104, and the openings of the reflection boxes 1103 and 1104 are provided. Are provided with color filters 1105 and 1106 having different colors, respectively. The color filters 1105 and 1106 change the color of light emitted from the fluorescent tubes 1101 and 1102, guide the light to each side of the light guide plate 1108, and serve as a reflection plate and a reflection plate. Light of uniform brightness is guided to the light-emitting surface 1109 of the light guide plate 1108 by the light-shielding pattern 1110 on the entire surface, and the light is irradiated on the subject 20.
[0022]
Also in this configuration, the fluorescent tubes 1101 and 1102 are turned on simultaneously or individually by the lighting circuit as described above, and each light amount is controlled by the inverter. In the configuration of FIG. 10, since a filter is used to change the emission color, there is an advantage that the configuration is more compact than that of the example of FIG. 9 and the power consumption is small.
[0023]
As for the method of image synthesis, a subject image and a background image are synthesized by a method as described in Japanese Patent Application No. 10-374879 previously filed by the applicant of the present invention, and if necessary, Output from the printer in print sticker output format. Further, at the same time as printing and outputting on a print sticker, the image is output to a medium such as a floppy disk. The method of image synthesis is described in detail in the above-mentioned Japanese Patent Application No. 10-374879, and a description thereof will be omitted.
[0024]
By using the above-described sub-illumination devices 19A and 19B to automatically or manually switch the back light of different colors, extract the contour of the subject image in the irradiation state of each back light, and obtain the logical sum of the contour. Even if the clothing is the same as any of the back lights, it is possible to prevent the outline from being correctly extracted by the back light of another color, thereby preventing the combined image from being partially missing.
[0025]
Alternatively, if the clothing has a color that is close to one of the colors of the back light of different colors, the user manually switches to turning on only the back light of the other color and shoots the subject. Can be correctly extracted, and it is possible to prevent a composite image in which a part of clothing is missing.
[0026]
Similarly, in the case of clothing having a color close to either of the colors of the back light of different colors, an instruction is made to synthesize the two colors of back light, and the two colors of the back light are considered in consideration of the color balance with the clothing. By synthesizing the background light and photographing, the outline of the subject can be correctly extracted, and it is possible to prevent a synthesized image in which a part of the clothing is missing.
[0027]
It should be noted that the present invention is not limited to a printout apparatus for a composite image, and it is needless to say that the present invention can be applied to all light sources in the case of performing image synthesis using the chromakey synthesis method.
[0028]
【The invention's effect】
As described above, according to the present invention, there is an effect that a composite image having no missing or missing portions can be created irrespective of the color of a subject including personal belongings.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a composite image creating apparatus according to the present invention.
FIG. 2 is a side view as seen from the direction of arrow A in FIG.
FIG. 3 is a perspective view illustrating an appearance of a main body housing.
FIG. 4 is a front view of a main body housing.
FIGS. 5A and 5B are a plan view and a side view showing the configuration of the rear housing.
FIG. 6 is a cross-sectional view illustrating a first example of a slave lighting device.
FIG. 7 is a circuit diagram illustrating an example of a lighting circuit configuration of a slave lighting device.
FIG. 8 is a cross-sectional view showing a second example of the slave lighting device.
FIG. 9 is a cross-sectional view illustrating a third example of a slave lighting device.
FIG. 10 is a cross-sectional view illustrating a fourth example of a slave lighting device.
FIG. 11 is a plan view showing an example of a pattern for reflection and light shielding.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Main body housing | casing, 2 ... rear housing | casing, 3 ... floor board, 4 ... roof part, 5 ... passage, 7 ... camera, 8 ... display apparatus, 9 ... control apparatus, 10 ... printer, 11A-11C ... main Illumination devices, 15, 16 doors, 18 photographing rooms, 19A, 19B slave illumination devices, 20 subjects, 191, 192 fluorescent tubes, 193, 194 reflection plates, 901 light guide plates, 1105, 1106 filters .

Claims (1)

A lighting device for irradiating a back light of a predetermined saturation and brightness from the back side and the floor side of the subject entering the photographing room, a camera for taking a whole body image of the subject in the irradiating state of the back light, and this camera A control device having image processing means for synthesizing the photographed subject image and a background image selected by the user using a chroma key synthesizing method,
The illumination device is configured by a surface light source device that irradiates the subject with the back light, and a dimming device that controls the brightness of the back light emitted from the surface light source device,
The surface light source device,
A light guide plate of a predetermined thickness, which is formed of a translucent material and has a surface that emits back light to the subject as a light emitting surface, and a reflector formed on a surface of the light guide plate that faces the light emitting surface, A plurality of light sources that enter light of a predetermined color from two side directions of the light guide plate, and a reflection surface that reflects light incident from the light source between the reflection plate and the reflection surface, A reflection pattern that transmits light from the transmission surface on which the reflection surface is not formed to the light emission surface, and the density of the reflection surface of the reflection pattern is determined based on the incident position of incident light from the light source. A composite image creation device characterized by being formed so as to become denser and coarser toward a center direction .

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