WO2017039416A1 - 타임 슬라이스 영상용 오차교정 유닛 - Google Patents
타임 슬라이스 영상용 오차교정 유닛 Download PDFInfo
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- WO2017039416A1 WO2017039416A1 PCT/KR2016/009903 KR2016009903W WO2017039416A1 WO 2017039416 A1 WO2017039416 A1 WO 2017039416A1 KR 2016009903 W KR2016009903 W KR 2016009903W WO 2017039416 A1 WO2017039416 A1 WO 2017039416A1
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- marker
- stand
- error correction
- time slice
- correction unit
- Prior art date
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- 238000000034 method Methods 0.000 claims description 11
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2625—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of images from a temporal image sequence, e.g. for a stroboscopic effect
- H04N5/2627—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of images from a temporal image sequence, e.g. for a stroboscopic effect for providing spin image effect, 3D stop motion effect or temporal freeze effect
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- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/243—Image signal generators using stereoscopic image cameras using three or more 2D image sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
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- H04N23/12—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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Definitions
- the present invention relates to an error correction unit for a time slice image, and more particularly, to an error correction unit for a time slice image used to provide an offset reference value for error correction of a time slice image.
- a time slice is a technique of arranging a plurality of cameras in an arc shape or a circle around a subject, and simultaneously photographing a subject and then synthesizing the captured images so as to be continuously connected to provide a rotated image.
- Such time slices are captured by still cameras, but are captured and synthesized from all sides of the subject at the same time, thereby providing an image of a video taken while moving around the subject.
- the time slice provides a three-dimensional image.
- time slice is shown in FIG. 1 due to an installation error caused by height differences or distances of cameras installed on all sides of the subject, or a difference in tilt angles of the ground, and a miss focus that does not focus on the center of the subject. Likewise, inconsistencies of the actual captured images occur.
- the cameras first photograph the error correction unit that provides a reference position of the image before imaging the actual subject.
- the error correction unit is disclosed in the Republic of Korea Patent Office No. 10-1457888 (ISM Research Institute Co., Ltd.) registered, it is typical that consists of the ball 50 installed in the tripod 11 as shown in FIG. .
- the error correction unit composed of the tripod 11 and the ball 50 is photographed by a plurality of cameras 10 before photographing an actual subject applied to the time slice.
- the ball 50 is used as an offset reference value for matching the viewpoints of the images captured by the cameras 10 when the actual subject is captured. That is, the ball 50 substantially provides a viewpoint correction offset value. Therefore, the actual deviation images captured by the plurality of cameras 10 are corrected based on the above-described offset reference value during synthesis.
- this error correction unit is composed of a single ball 50, so that the center portion according to the size or height of the actual subject can not be confirmed, so that the center of the actual subject to be imaged can not actually provide an offset reference value to match the viewpoint,
- the offset reference value for matching the tilt cannot be provided.
- the tilting of the subject can not be obtained, information on the size or height of the subject cannot be obtained. Even if the subjects are photographed in different sizes, they do not provide an offset reference value to match them. Therefore, in the captured image, the viewpoint deviation, the slope deviation, or the size deviation of the subject during the synthesis is not substantially corrected.
- the error correction unit of Patent Registration No. 10-1548236 (ESM Research Institute Co., Ltd.), which is registered with the Korean Intellectual Property Office, is a triangular pyramid instead of the ball 50 described above in the tripod 63, as shown in FIG.
- a cylinder 61 having 62 is provided.
- the cylinder 61 is taped with red (R), green (G) and blue (B) RGB tapes on the surface, and is imaged by a plurality of cameras together with the triangular pyramid 62.
- the RGB tape of the cylinder 61 is used as an offset reference value for matching the colors of the cameras.
- the line segments or the cabinets connecting the vertices of the triangular pyramid 62 are used as offset reference values that match the viewpoints and the tilts of the cameras.
- the cylinder 61 and the triangular pyramid 62 substantially provide an offset reference value for correcting by matching the color, viewpoint or inclination of the images captured by the respective cameras. Accordingly, the color deviation, the viewpoint deviation, or the slope deviation are corrected for the actual subject images photographed by the plurality of cameras based on the above-described offset reference value during synthesis.
- the error correction unit since the error correction unit is not configured to identify the center portion according to the size or height of the actual subject in the same manner as the error correction unit described above, it does not actually provide an offset reference value that coincides the viewpoint with the center portion of the subject. Since the information on the size or height of the structure cannot be secured, even if the subjects are photographed in different sizes due to the difference in distance between the cameras, the offset reference values for matching them cannot be provided. Therefore, in the captured image, the viewpoint deviation or the size deviation of the subject during the composition is virtually not corrected.
- the present invention has been made to solve the above-described problem, and displays a plurality of reference positions corresponding to the height of the subject in a spaced apart state in the vertical direction so that an offset reference value is set according to the height, inclination and / or size of the subject.
- the purpose is to provide an error correction unit for a time slice image.
- the reference position it is possible to vary the reference position to a height corresponding to the height of the subject, in addition to the components are prefabricated, and further to provide an error correction unit for a time slice image that can display the reference position in various colors. For other purposes.
- an error correction unit is used to provide an offset reference value for error correction of time slice images, respectively, photographed by each camera used for capturing a time slice image.
- a stand having a length corresponding to the height of the subject of the time slice image by the vertical stand; And a marker member installed on the stand to display a plurality of reference positions for setting the offset reference value.
- the marker member is provided in a spaced apart state along the longitudinal direction of the stand to form a plurality, and has a structure in which the image is captured in the same shape even if the image is captured from all directions by the cameras.
- the marker member is composed of at least one of, for example, a ball captured in a circular shape from all sides by the cameras, a cylinder captured in a square shape on all sides, or a cone captured in a triangular shape on all sides.
- the stand may comprise, for example, a pole having a vertical length; And a base supporting a lower portion of the pole.
- the poles may be detachably coupled to each other to form a length vertically.
- the base may be configured as a tripod in which the pole is vertically coupled to the upper portion, or may be configured as a plate member.
- the marker member may include, for example, a first marker installed below or at the center of the stand; And a second marker installed on the stand in a state spaced apart from the first marker and aligned in line with the first marker.
- the marker member may further include a third marker installed on the stand while being spaced apart from the second marker and aligned in line with the second marker.
- the marker member may be formed in the form of a ball, a cylinder, or a cone having a through hole through which the stand is inserted into a through state.
- the marker member may be configured to have different colors of the first marker and the second marker.
- the marker member may include, for example, a circular globe having a through hole through which the stand vertically penetrates; And a fastener for detachably installing the glove to the stand.
- the fastener may be, for example, a sleeve fixed to the glove and into which the stand is inserted; And a clamp that couples the sleeve to the stand to restrain the stand.
- the clamp may be, for example, a stop screw for pressing the stand through the sleeve.
- the clamp may include, for example, a collet integrally provided at a lower portion of the sleeve to stretch along a circumferential direction of the sleeve; And an incline nut screwed to the collet and having an inclined surface therein.
- the marker member may further include at least one lighting module configured to emit light of the color set inside the globe to emit the globe.
- the plurality of marker members for indicating the reference position is installed on the stand having a length corresponding to the height of the subject spaced apart at least two standards corresponding to the height of the subject to be photographed for the time slice
- the position can be displayed along the longitudinal direction of the stand, thereby enabling the calculation of the offset reference value corresponding to the height and inclination of the subject through the plurality of reference positions.
- the shape of the marker member is distorted even when the marker member is photographed by any one of the cameras arranged in all directions of the marker member as the plurality of marker members are formed in the shape of a cylinder, a cone, or a ball forming the same shape even when photographed from all directions. Since it is imaged without, it is possible to easily derive the center of the marker member.
- the stand is composed of poles supported by the base, the stand corresponding to the height of the subject can be easily configured, and in addition, the poles can be easily stored and transported since the poles are detachably coupled with a plurality of bars.
- the base is composed of a telepod capable of telescopic, the height of the stand can be additionally adjusted through the tripod if necessary, and the pole can be easily installed vertically even on a slope. .
- the plurality of marker members are configured with a first marker and a second marker respectively installed on both sides of the stand
- two reference positions may be provided to calculate an offset reference value through a distance between the reference positions.
- the offset reference value may be calculated through the marker located among the first to third markers.
- the marker member when the marker member is fixed to the pole of the stand, the marker member can be fixed to the pole without a separate part. In addition, the marker member is moved to the position where the marker member is moved even if the marker member is moved along the longitudinal direction of the pole. Since it is fixed in nature, it is also possible to easily change the fixed position of the marker member, and furthermore, when the marker member is formed in the form of a ball by foam foam, the marker member can be easily manufactured at low cost.
- the reference position by the marker member can be easily identified, and the offset reference value for color correction can be provided through the color of the marker member.
- the lighting module not only can the reference position by the marker member be easily identified at a distance and at night, but also the color of the marker member can be easily converted through the lighting module.
- the brittleness of the marker member can be reinforced to improve durability, and in addition, the length of the pole through the sleeve when the fastener is composed of the sleeve and the clamp. It can be moved easily by sliding the globe along the direction.
- the clamp can be easily configured when the clamp is composed of a stop screw.
- the clamp when the clamp is composed of a collet and an incline nut, the collet grips the pole by the engagement of the incline nut, so that the sleeve can be firmly fixed to the pole. Can be.
- 1 is a conceptual diagram of a general time slice image photographed by a plurality of cameras
- FIG. 2 is a perspective view showing a state of use of the error correction unit for a time slice image according to the prior art
- 3 is a perspective view of another error correction unit for time slice image according to the prior art
- FIG. 4 is a perspective view of an error correction unit for a time slice image according to an embodiment of the present invention.
- FIG. 5 is a perspective view illustrating a process of extracting the center of the marker member shown in FIG. 4;
- FIG. 6 is an exploded perspective view of the error correction unit shown in FIG. 4;
- FIG. 7 is a perspective view of another embodiment of the fastener shown in FIG. 6; FIG.
- FIG. 8 is a longitudinal sectional view showing a state of use of the fastener shown in FIG. 7;
- FIG. 9 is a front view of another embodiment of the clamp shown in FIG. 6;
- FIG. 10 is a perspective view showing that the lighting module is mounted on the globe shown in FIG.
- FIG. 11 is a conceptual diagram showing a photographing state of the error correction unit shown in FIG. 4;
- FIG. 11 is a conceptual diagram showing a photographing state of the error correction unit shown in FIG. 4;
- FIG. 12 is a conceptual diagram illustrating an image of an error correction unit photographed by the cameras shown in FIG. 11;
- FIG. 13 is a conceptual diagram illustrating setting a center coordinate reference value through the error correction unit shown in FIG. 11;
- FIG. 14 is a conceptual diagram showing another embodiment of the error correction unit shown in FIG. 4;
- FIG. 15 is a conceptual diagram illustrating setting a slope offset reference value through the error correction unit shown in FIG. 14; FIG.
- FIG. 16 is a conceptual diagram illustrating setting a height offset reference value through the error correction unit shown in FIG. 14;
- FIG. 17 is a conceptual diagram illustrating photographing a subject by the cameras shown in FIG. 14;
- FIG. 18 is a conceptual diagram illustrating an image of each camera photographed by FIG. 17;
- FIG. 19 is a conceptual diagram showing an application state of the center coordinate offset reference value shown in FIG. 13;
- 21 is a conceptual diagram showing an application state of the height offset reference value shown in FIG. 16;
- the error correction unit for time slice image is imaged to respective cameras used for capturing the time slice image to provide an offset reference value for error correction of the time slice images. It is used to This error correction unit includes a stand (110, 120) and a marker member 130 as shown in FIG.
- the stands 110 and 120 have a length corresponding to the height of an actual subject such as a human body. That is, the stands 110 and 120 have a length corresponding to the height of the subject of the time slice image by the cameras.
- the stands 110 and 120 are erected vertically as shown in FIG. 4 to correspond to the height of the subject.
- the stand 110 and 120 may include a pole 110 having a length vertically and a base 120 supporting a lower portion of the pole 110 as shown in FIG. 4.
- the pole 110 may be configured as a plurality of bars detachably coupled to each other to form a length vertically, as shown in FIG.
- the plurality of bars are detachably coupled to each other by a coupler.
- a coupler may be configured with, for example, a female thread 112 and a male thread 111 respectively formed at both ends of the bars as shown in FIG. 6.
- the coupler detachably couples the plurality of bars by screwing.
- the pole 110 is assembled when necessary to form a length corresponding to the height of the actual subject, but is usually stored or transported in a separated state.
- Base 120 may be configured, for example, as a conventional tripod having poles 110 vertically coupled to the top and having legs 122 and top 121 as shown in FIG. 4.
- the legs 122 are telescopic as needed, and the vertical position of the pole 110 can be changed.
- the base 120 supports the lower portion of the pole 110 even on an incline by telescopic operation. 110 can be set vertically.
- the base 120 may be configured as a plate member as shown in FIG. In this case, the base 120 should be constructed with an area capable of sufficiently supporting the pawl 110.
- the above-described tripod is detachably fixed to the pole 110 as the upper screw shaft 121a is screwed to the nut hole 110a formed at the lower end of the pole 110 as shown in FIG. 6. .
- the marker member 130 is installed in the pole 110 as shown in Figure 5 to display a plurality of reference positions for the setting of the offset reference value described later.
- Marker member 130 is composed of a plurality as shown in Figure 5 is installed in a spaced apart state along the longitudinal direction of the pole (110).
- the marker member 130 may be configured with at least one of, for example, a ball, a cylinder, and a cone as shown in FIG. 5 to provide the same shape even when imaged from all directions as shown in FIG. 11.
- the marker member 130 is composed of a ball, a cylinder, or a cone, the camera is photographed in the same manner in a circle, a square, or a triangle in all four cameras.
- the marker member 130 may include, for example, a first marker 130A and a second marker 130B as shown in FIG. 4. As shown, the first marker 130A is installed at the bottom or the center of the pawl 110. As shown in the drawing, the second marker 130B is installed in the pawl 110 while being spaced apart from the first marker 130A. Accordingly, the first marker 130A and the second marker 130B are aligned in a line along the longitudinal direction of the pole 110 as shown in FIG. 13.
- the marker member 130 may further include a third marker 130C installed in the pawl 110 and positioned between the first marker 130A and the second marker 130B as shown in FIG. 4. As shown in the drawing, the third marker 130C is spaced apart from the first marker 130A and the second marker 130B at equal intervals and positioned in the middle of the first marker 130A and the second marker 130B. Accordingly, the third markers 130C are aligned in a line along the longitudinal direction of the pawl 110 together with the first marker 130A and the second marker 130B as shown in FIG. 14.
- the first to third markers 130A, 130B, and 130C may be configured to have different colors from each other by surface painting. Therefore, the first to third markers 130A, 130B, and 130C are easily identified due to the color difference.
- the marker member 130 has through holes 131 through which the poles 110 penetrate.
- the through hole 131 may be formed to a diameter in which the pole 110 is fitted. Therefore, the marker member 130 may be fixed to the pawl 110 by interference fit, and is fixed in the naturally moved position even when the marker member 130 is moved in the interference fit state.
- the marker member 130 may be formed of a foam or foam in the form of a ball or cylinder or cone formed with the above-mentioned through hole 131 in order to reduce weight and reduce manufacturing cost. However, this can be vulnerable to brittleness. Therefore, the marker member 130 is preferably composed of a glove in which the above-described through hole 131 is formed, as shown in FIG. 7. Such a glove is composed of a ball-shaped lamp cover made of glass, polycarbonate or plastic. As shown, the glove 110 is vertically penetrated through the through hole 131, and is fixed to a set position of the pawl 110 as the glove 110 is detachably installed to the pawl 110 by a fastener.
- the above-described fastener may be composed of, for example, a sleeve 132a and a clamp as shown in FIG. 7.
- the sleeve 132a is fixed to the marker member 130 composed of a glove as shown, and the pawl 110 is inserted through the hollow.
- the sleeve 132a is provided with a flange 123b as shown so that one end is easily attached to the glove.
- the flange 132b has a curved surface corresponding to the curved surface of the globe as shown in FIG. 8 and is fixed to the globe by the fastening screw 132d.
- the clamp couples the sleeve 132a to the pawl 110 to constrain the sleeve 132a to the pawl 110.
- the clamp may include a stop screw 123c as shown in FIG. 7.
- the stop screw 132c presses the pawl 110 through the sleeve 132a as shown in FIG. 8.
- the sleeve 132a is fixed at the set position of the pawl 110.
- the clamp may be composed of a collet CL having a notch N and an incline nut 133 coupled to the collet CL as shown in FIG. 9.
- the collet CL is provided at the lower end of the sleeve 132a as the notch N is formed at the lower end of the sleeve 132a as shown.
- the collet CL has an inner diameter that contracts along the circumferential direction of the sleeve 132a when the notch N is narrowed when the incline nut 133 having an inclined surface therein is screwed T1 and T2 as shown. . Therefore, the collet CL fixes the sleeve 132a to the pole 110 by the inner circumferential surface holding the pole 110. This clamp simply fixes the sleeve 132a to the pawl 110 by engaging the incline nut 133 to fix the sleeve 132a to the pawl 110.
- the marker member 130 composed of the above-described globe may emit light by the illumination module 140 as shown in FIG.
- the lighting module 140 may be configured of a PCB board on which an LED is mounted.
- the lighting module 140 receives driving power through a wire connected to the power supply unit P as shown.
- the lighting module 140 is attached to the interior of the marker member 130 as shown to emit light in the interior of the marker member 130. Therefore, since the marker member 130 emits light by the illumination light of the illumination module 140, it is easily identified at a long distance or at night. In particular, the marker member 130 may be more easily identified because it displays various colors when the illumination module 140 emits light in various colors.
- the error correction unit 100 for a time slice image is offset with reference values of respective images as shown in FIG. 12 after being captured by a plurality of cameras as shown in FIG. 11. It is provided to a terminal (not shown) for setting the.
- the error correction unit 100 provides the reference position to the terminal through the marker member 130 so that the terminal sets the offset reference value as shown in an enlarged view of FIG. 5. Therefore, the terminal forms a virtual border line on the edge of the marker member 130 based on the shape of the marker member 130 as shown in an enlarged manner, and then sets the center C of the border line.
- FIG. 13 when the two marker members 130 are configured as shown in FIG.
- the terminal is located at the center of the subject from the center C of each marker member 130. Set to the offset reference value.
- the terminal offsets the center C of the central marker member corresponding to the center of the subject. Set the reference value.
- the terminal since the stand composed of the pole 110 and the base 120 corresponds to the height of a subject (eg, a human body) to be actually photographed as described above, the terminal provides an offset reference value corresponding to the center of the actual subject.
- a subject eg, a human body
- the terminal sets an offset reference value for tilt correction based on any one of the plurality of marker members 130.
- the terminal sets an offset reference value for tilt correction through the inclination angle dA of the other marker member 130 or the pole 110 as shown.
- the terminal sets an offset reference value for height correction through a separation distance between the lowermost marker member 130 and the uppermost marker member 130 among the plurality of marker members 130.
- the terminal receives an image of an actual subject captured by a plurality of cameras as shown in FIG. 17 and configured as shown in FIG. 18, and then based on the offset reference value described above with reference to FIGS. 19 to 21.
- the deviations of the image are corrected by comparing the center deviation, the tilt deviation, and the height deviation of the actually captured subject image, and the corrected image is synthesized and provided as a time slice image. Therefore, since the terminal corrects various deviations of the actual captured images, it is possible to provide a time slice image in which various errors are corrected.
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Abstract
Description
Claims (10)
- 타임 슬라이스 영상의 촬영에 사용되는 각 카메라들에게 제각기 촬상되어 타임 슬라이스 영상들의 오차보정을 위한 오프셋 기준값을 제공하는데 사용되는 오차교정 유닛에 있어서,상기 카메라들에 의한 타임 슬라이스 영상의 피사체 높이에 대응하는 길이를 가지며, 수직으로 세워지는 스탠드; 및상기 스탠드에 설치되어 상기 오프셋 기준값의 설정을 위한 복수의 기준 위치를 표시하는 마커 부재;를 포함하고,상기 마커 부재는,상기 스탠드의 길이방향을 따라 이격상태로 설치되어 복수를 이루고, 상기 카메라들에 의해 사방에서 촬상되어도 동일한 형상으로 촬상되는 구조로 이루어진 타임 슬라이스 영상용 오차교정 유닛.
- 제 1 항에 있어서, 상기 마커 부재는,상기 카메라들에 의해 사방에서 원형으로 촬상되는 볼이나 사방에서 사각의 형태로 촬상되는 원통 또는 사방에서 삼각의 형태로 촬상되는 원뿔 중 적어도 어느 하나로 구성되는 타임 슬라이스 영상용 오차교정 유닛.
- 제 1 항에 있어서, 상기 스탠드는,수직으로 길이를 갖는 폴; 및상기 폴의 하부를 지지하는 베이스;를 포함하는 타임 슬라이스 영상용 오차교정 유닛.
- 제 3 항에 있어서, 상기 베이스는,상기 폴이 상부에 수직상태로 결합되는 트라이포드;로 구성된 타임 슬라이스 영상용 오차교정 유닛.
- 제 1 항에 있어서, 상기 마커 부재는,상기 스탠드의 하부나 중앙에 설치되는 제1 마커; 및상기 제1 마커와 이격된 상태로 상기 스탠드에 설치되어 상기 제1 마커와 일렬로 정렬되는 제2 마커;를 포함하는 타임 슬라이스 영상용 오차교정 유닛.
- 제 5 항에 있어서, 상기 마커 부재는,상기 제2 마커와 이격된 상태로 상기 스탠드에 설치되어 상기 제2 마커와 일렬로 정렬되는 제3 마커;를 더 포함하는 타임 슬라이스 영상용 오차교정 유닛.
- 제 3 항에 있어서, 상기 마커 부재는,상기 스탠드가 관통상태로 억지끼움되는 관통공을 갖는 볼이나 원통 또는 원뿔의 형태로 형성되는 타임 슬라이스 영상용 오차교정 유닛.
- 제 3 항에 있어서, 상기 마커 부재는,상기 스탠드가 수직으로 관통되는 관통공이 마련된 원형의 글로브; 및상기 글로브를 상기 스탠드에 착탈 가능하게 설치하는 패스너;를 포함하는 타임 슬라이스 영상용 오차교정 유닛.
- 제 8 항에 있어서, 상기 패스너는,상기 글로브에 고정되고, 상기 스탠드가 삽입되는 슬리브; 및상기 슬리브를 상기 스탠드에 결합시켜서 상기 스탠드에 구속하는 클램프;를 포함하는 타임 슬라이스 영상용 오차교정 유닛.
- 제 9 항에 있어서, 상기 클램프는,상기 슬리브를 관통하여 상기 스탠드를 가압하는 정지나사;로 구성된 타임 슬라이스 영상용 오차교정 유닛.
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KR20170028181A (ko) | 2017-03-13 |
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