JP2013034492A - Display device and display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To match a gap between a predetermined motion posture and a motion posture of a user in accordance with movement of the user when the user practices a series of motions.SOLUTION: The display device includes: an image capture part for gradually capturing images taken as a series of multiple motion postures of the motion of the user; a recording part in which basic posture images composed of a series of the multiple motion postures recorded; a feature point extraction part for extracting a predetermined feature point from the series of multiple motion postures of images and the basic posture images; a detection part for detecting the respective differences between positions of the feature points of the predetermined motion posture from images and positions of the feature points extracted from the series of multiple motion postures of the basic posture images; and a display part for displaying the motion postures of the basic motion images when the detected differences are in a predetermined threshold value as well as displaying the predetermined motion posture of the images.

Description

  The present invention relates to a display device and a display method.

  Conventionally, when practicing a series of movements when hitting a golf club or bat, such as golf swing or baseball batting, deviation from the movements performed by the leaders in a predetermined movement posture There was a request to check. As a prior art for checking this operation, an exercise practice device that captures a user who practices a series of operations with a camera and displays the captured image in front of the user's eyes (Patent Document 1), An exercise support system that compares an image of a user who is practicing a series of actions with image data of a series of actions taken by an instructor, etc. Patent document 2) is known.

JP-A-6-165847 JP 2006-302122 A

  However, in the above-described conventional technology, it has not been possible to sufficiently meet the demand for checking in real time the user's movement for the deviation from the movement of the leader or the like in a predetermined movement posture. For example, in patent document 1, although a user's own movement can be confirmed in real time, it cannot fully confirm how much it deviates from operation | movement of a leader. Moreover, in patent document 2, it is necessary for the user side to match a timing with a series of operations by an instructor or the like, and it is not possible to perform a check in accordance with the movement of the user. For example, in the case of a golf swing, if the user does not match the timing of the instructor's actions in the order of address → back swing → top swing → down swing → impact → finish, it is reported as a movement deviation or error. The Rukoto. For this reason, it is not possible to check in accordance with the movement of the user, such as checking the movement posture by slowly moving from the top swing to the impact.

  The present invention has been made in view of the above, and a display device and a display capable of confirming a shift in a predetermined operation posture in accordance with a user's movement when practicing a series of operations It aims to provide a method.

  In order to solve the above-described problems and achieve the object, the display device according to the embodiment includes an image capturing unit that sequentially captures captured images captured as a plurality of continuous motion postures of a user, and a plurality of continuous image capturing units. A recording unit that records a basic motion image composed of a motion posture; a feature point extraction unit that extracts a predetermined feature point from the plurality of continuous motion postures of the captured image and the basic motion image; and A detection unit that detects a difference between the position of the feature point of the predetermined motion posture and the position of the feature point extracted from the plurality of continuous motion postures of the basic motion image; and the detected difference A display unit that displays the motion posture of the basic motion image within a predetermined threshold together with the predetermined motion posture of the captured image.

  The display method according to the embodiment is a display method executed by the display device, and includes a step of sequentially capturing captured images obtained by capturing a user's motion as a plurality of continuous motion postures, and a plurality of continuous motion postures. A recording step of recording a configured basic motion image; a step of extracting a predetermined feature point from the plurality of continuous motion postures of the captured image and the basic motion image; and a predetermined motion posture of the captured image Detecting a difference between the position of the feature point and the position of the feature point extracted from the plurality of continuous motion postures of the basic motion image, and the detected difference is within a predetermined threshold Displaying the motion posture of the basic motion image together with a predetermined motion posture of the captured image.

  The display device and the display method according to the present invention have an effect that it is possible to check a shift in a predetermined motion posture in accordance with the movement of the user when practicing the motion.

FIG. 1 is a perspective view illustrating an example of use of the display device according to the embodiment. FIG. 2 is a conceptual diagram illustrating a display device that is used by being mounted on the head. FIG. 3 is a conceptual diagram illustrating a display screen in the display unit. FIG. 4 is a block diagram illustrating an example of a hardware configuration of the display device. FIG. 5 is a flowchart illustrating an example of the operation of the display device. FIG. 6 is a conceptual diagram illustrating an example of a captured image. FIG. 7 is a conceptual diagram illustrating extraction of feature points from a captured image. FIG. 8 is a flowchart illustrating an example of the synchronized playback process. FIG. 9 is a conceptual diagram in which a series of motion postures are arranged. FIG. 10 is a conceptual diagram in which a series of motion postures are overlapped. FIG. 11 is a conceptual diagram illustrating motion postures with different motion directions. FIG. 12 is a conceptual diagram illustrating the finishing operation in a golf swing. FIG. 13 is a conceptual diagram illustrating a top swing operation in a golf swing. FIG. 14 is a conceptual diagram showing an example of synchronized playback. FIG. 15 is a conceptual diagram showing an example of synchronized playback. FIG. 16 is a perspective view illustrating a usage example of the display device according to the modification. FIG. 17 is a block diagram illustrating a system configuration according to a modification.

  Embodiments of a display device and a display method according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment.

  FIG. 1 is a perspective view illustrating a usage example of the display device 10 according to the embodiment. As shown in FIG. 1, the display device 10 is a head-mounted display device that is used by being worn on the head 2 when a person 1 who is a user practices a series of movement postures such as a golf swing. (Head Mounted Display (HMD)). The imaging device 20 is a digital camera that captures an action posture of the person 1. The display device 10 and the imaging device 20 are communicably connected to each other via a communication network such as a wireless local area network (LAN) by communication units 14 and 23 (see FIG. 4).

  Here, a series of movements means that a person continuously performs a movement from a predetermined start posture to an end posture, and the movement posture is a certain point in time during the series of movements. It means posture. For example, in the present embodiment, a case where the person 1 holding the golf club 4 practices a series of actions when hitting the golf ball 3 will be described as an example. This series of motions includes motion postures such as address, back swing, top swing, down swing, impact, and finish. Needless to say, the practice of a series of operations using the display device 10 may be baseball batting, gymnastics, or the like in addition to the golf swing described above. Further, the imaging device 20 may be configured not only to capture the person 1 from the front as in the illustrated example, but also to capture the person 1 from the back, the side, or the like with a plurality of the imaging apparatuses 20.

  FIG. 2 is a conceptual diagram illustrating the display device 10 used by being mounted on the head 2. As shown in FIG. 2, the display device 10 is configured to include a display unit 11 and an operation unit 12 on a frame F that contacts and supports the outer periphery of the head 2. The display unit 11 is a display that is disposed in front of the person 1 with the frame F and displays an image toward the person 1. Specifically, the display unit 11 may be a retinal scanning display, a transmissive liquid crystal display, or the like. The operation unit 12 is an operation switch or the like provided on the side of the frame F or the like. The operation unit 12 may be a remote controller (not shown) operated by the person 1.

  FIG. 3 is a conceptual diagram illustrating the display screen G in the display unit 11. As shown in FIG. 3, the display screen G in the display unit 11 is displayed in a transparent manner without obstructing the view in the visual field direction of the person 1. For example, in the case of a retinal scanning display, a light beam corresponding to an image signal is scanned in a two-dimensional direction, and the scanned light is guided to the eye to form a display image on the retina. Therefore, as shown in the illustrated example, the field of view of the person 1 (see also FIG. 1) who is performing an addressing operation in which the golf club 4 is brought close to the golf ball 3 is not obstructed. 14 and 15 exemplify cases where reproduced images G1, G2, and G3 are displayed on the display screen G as display images (details will be described later).

  FIG. 4 is a block diagram illustrating an example of a hardware configuration of the display device 10. As shown in FIG. 4, the display device 10 includes a display controller 11, an operation unit 12, a system controller 13, a communication unit 14, a storage device 15, a DRAM 16, an input / output I / F unit 17, and an image processing unit 18. Is provided. The imaging device 20 is, for example, a digital video camera, an imaging device 21 such as a CCD or CMOS image sensor, an A / D conversion unit 22 that performs A / D conversion on image data captured by the imaging device 21, and converted image data. Is provided in a predetermined format and transmitted to the display device 10.

  The system controller 13 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The CPU expands a program stored in the ROM into a work area of the RAM and sequentially executes the program. Thus, the operation of the display device 10 is comprehensively controlled. The communication unit 14 is a communication interface that performs data communication with the imaging device 20. Under the control of the system controller 13, the communication unit 14 acquires moving image data output from the communication unit 23 by the imaging device 20 imaging at a predetermined frame rate. The acquired moving image data is temporarily stored in the DRAM 16 or the like under the control of the system controller 13, and image processing by the image processing unit 18 or recording in the storage device 15 is performed.

  The storage device 15 is a storage device such as an HDD (Hard Disk Drive), and includes moving image data relating to a recorded moving image in which a series of operations relating to the practice of the person 1 is recorded in advance, moving image data captured by the imaging device 20, Stores various setting data. The recorded moving image is a basic motion image composed of a plurality of continuous motion postures. In this embodiment, a golf swing performed in the order of address → back swing → top swing → down swing → impact → finish is imaged. It is a moving image when viewed from the same direction as the device 20, and may be, for example, a moving image obtained by capturing an instructor's swing or a moving image that reproduces an ideal swing by computer graphics processing.

  The DRAM 16 (Dynamic RAM) provides a storage area for temporarily storing image data such as moving images. The input / output I / F unit 17 inputs / outputs data to / from an external device that is connected for communication through various communication ports such as a USB (Universal Serial Bus) under the control of the system controller 13.

  The image processing unit 18 is a DSP (Digital Signal Processor) for image processing, and performs various types of image processing under the control of the system controller 13. Specifically, the image processing unit 18 includes a CODEC unit 181, a feature point extraction unit 182, and a relative position detection unit 183.

  The CODEC unit 181 performs image data encoding processing and decoding processing. For example, the CODEC unit 181 decodes encoded moving image data such as MPEG (Moving Picture Experts Group) format. By the decoding of the CODEC unit 181, the display device 10 obtains a frame image with an action posture included in the moving image data.

  The feature point extraction unit 182 extracts a predetermined object included in the frame image as a feature point. For this feature point extraction, a known technique for extracting a feature point from a frame image described in JP-A-8-214289 is used. Specifically, the feature point extraction unit 182 includes a characteristic part (for example, a head, a shoulder, an elbow, a hand, a waist, and a knee) constituting a human body from a frame image or an object having a predetermined shape. Extract (club or club head). In the present embodiment, a person's head, shoulders, elbows, hands, hips, knees, and club heads of clubs held by the person in the frame image are extracted as feature points indicating the motion posture. Further, the feature point extraction unit 182 calculates a motion vector indicating the motion of the feature point by comparing the feature points extracted from the previous and next frame images in the moving image.

  Based on the feature points extracted by the feature point extraction unit 182, the relative position detection unit 183 compares frame images of different moving images with each other and detects the relative positional relationship between the feature points. Specifically, the relative position detection unit 183 compares the positions of the feature points extracted in the respective frame images and detects the difference. In the present embodiment, the relative position detection unit 183 is included in the feature points extracted from the captured image captured by the imaging device 20 and the moving image recorded in the storage device 15 under the control of the system controller 13. The relative positional relationship between the feature points extracted from each frame image is detected. Thereby, the difference between the position of the feature point extracted from the captured image captured by the imaging device 20 and the position of the feature point moving along a series of motion postures in the moving image recorded in the storage device 15 is obtained. Detected.

  Based on the difference detected by the relative position detector 183, the system controller 13 moves the motion posture of the person 1 captured by the imaging device 20 among the frame images included in the moving image recorded in the storage device 15. A frame image including a motion posture similar to is specified. Specifically, a frame image in which the difference detected by the relative position detection unit 183 is within a predetermined threshold is specified as a frame image including a similar motion posture. For the specification of the frame image, a known technique for specifying a similar frame image based on the extracted feature points described in Japanese Patent Application Laid-Open No. 2004-94667 is used.

  Next, the operation flow of the display device 10 will be described. FIG. 5 is a flowchart illustrating an example of the operation of the display device 10.

  As shown in FIG. 5, when the start of the operation is instructed by the operation of the operation unit 12 or the like, the system controller 13 displays a sub screen for displaying various information on the display screen G of the display unit 11. Is turned on (S1). Next, the selection operation is received by the operation unit 12, and the system controller 13 determines the selection operation received by the operation unit 12 (S2).

  When the selection operation is “imaging”, the system controller 13 acquires captured images (frame images) sequentially captured by the imaging device 20 via the communication unit 14 (S3), and sequentially stores the acquired captured images. Record and save to (S4). Therefore, the person 1 can record a moving image when the user swings the golf club 4 in the storage device 15 by performing a selection operation of “imaging”.

  When the selection operation is “synchronous display”, the system controller 13 starts synchronous display (S5), and an image captured by the imaging device 20 via the communication unit 14, that is, a captured image captured of the operation of the person 1 ( The frame image of the motion posture) is sequentially captured (S6). The captured image captured is temporarily stored in the DRAM 16.

  Next, the system controller 13 causes the feature point extraction unit 182 to extract the above-described feature points from the captured image and the moving image data recorded in the storage device 15 (S7).

  FIG. 6 is a conceptual diagram illustrating an example of the captured image G10, and FIG. 7 is a conceptual diagram illustrating the extraction of feature points from the captured image G10. When the captured image G10 as shown in FIG. 6 is captured in S6, in S7, it corresponds to the head, shoulder, elbow, hand, waist, knee of the person 1 or the club head of the golf club 4 held by the person 1. Feature points P1 to P9 are extracted from the captured image G10. Similarly, feature points P1 to P9 are extracted from each frame image included in the moving image data recorded in the storage device 15.

  Next, the system controller 13 displays moving image data synchronized with the motion posture of the person 1 on the display unit 11 based on the captured image G10 and the feature points extracted from the moving image data recorded in the storage device 15. A synchronous reproduction process to be displayed (details will be described later) is performed (S8).

  When the selection operation is “menu”, the system controller 13 displays a menu related to the setting operation on the sub-screen (S9), model selection (S101), camera selection (S102), display setting (S103), and the like. A setting operation is received from the operation unit 12 (S10). Here, the model selection is a selection operation for setting which of the plurality of moving images recorded in the storage device 15 is to be displayed as a model in the synchronous reproduction process. The camera selection is a selection operation for setting which imaging device 20 displays an image captured on the display unit 11 when there are a plurality of imaging devices 20. The display setting sets the display format (displayed side by side or superimposed) during the synchronous playback process.

  When the selection operation is “end”, the system controller 13 turns off the display of the sub screen (S11), and ends the process.

  Here, details of the synchronous reproduction processing will be described. FIG. 8 is a flowchart illustrating an example of the synchronized playback process. As illustrated in FIG. 8, when the synchronized playback process is started, the relative position detection unit 183 includes the feature points extracted from the captured image G10 and the frame images included in the moving image data recorded in the storage device 15. With respect to the extracted feature points, attention is paid to predetermined feature points, the feature points of interest are compared with each other (S21), and the difference between the positions of the feature points is calculated (S22).

  Here, the feature point of interest is more preferably a feature point whose position changes greatly in a series of motion postures. FIG. 9 is a conceptual diagram in which a series of motion postures are arranged. As shown in FIG. 9, when the person 1 performs a golf swing, the club head of the golf club 4 is the largest in the operation postures A1 to A7 from the address to the finish, and the hand of the person 1 is the next. It is a feature point that changes greatly. Therefore, in the present embodiment, the club head of the golf club 4 is the feature point that focuses on the first, and the hand of the person 1 is the feature point that focuses on the second.

  Next, based on the difference detected by the relative position detector 183, the system controller 13 is imaged by the imaging device 20 in the motion posture frame image included in the moving image data recorded in the storage device 15. A frame image including an action posture similar to the action posture of the person 1 is specified (S23). Next, the system controller 13 determines whether or not a plurality of frame images have been specified in S23 (S24).

  FIG. 10 is a conceptual diagram in which a series of motion postures are overlapped. As shown in FIG. 10, when the club head of the golf club 4 is a feature point of interest, the frame images of the motion posture A3 and the motion posture A7, the frame images of the motion posture A2 and the motion posture A4, the motion posture A1 and the motion posture The frame image of A5 may be specified as a frame image including an action posture similar to the action posture of the person 1. For example, when the person 1 holds the golf club 4 in the movement posture A2, the frame image holding the golf club 4 in the movement posture A4 may be specified. Therefore, in S24, it is determined whether or not frame images with different motion postures are also specified.

  When a plurality of frame images are identified in S23 (S24: YES), the system controller 13 acquires a motion vector indicating the motion of the feature points calculated by the feature point extraction unit 182 for the captured image G10 and the identified frame images. Then, the frame image is narrowed down based on the acquired motion vector (S26). Specifically, the image is narrowed down to frame images having motion vector feature points close to the feature point motion vector of the captured image G10.

  FIG. 11 is a conceptual diagram illustrating motion postures with different motion directions. As shown in FIG. 11, in the vicinity of the motion posture A2, when the motion posture A2 is compared with the motion posture A2 n frames before (−n), the golf club 4 moves in a swinging direction. Further, in the vicinity of the motion posture A4, when the motion posture A4 is compared with the motion posture A4 n frames before (−n), the golf club 4 is moving in the swing-down direction. Therefore, the motion posture A4 or the motion posture A2 can be distinguished depending on whether or not it is close to the motion vector of the feature point of the captured image G10.

  Subsequent to S26, the system controller 13 determines whether or not one frame image has been narrowed down in S26 (S27). When it is not narrowed down to one frame image in S26 (S27: NO), the system controller 13 determines the positional relationship with the second feature point that is different from the first feature point (described above). Based on the difference, the frame image is narrowed down (S28).

  FIG. 12 is a conceptual diagram illustrating the finish operation (near the operation posture A7) in a golf swing. FIG. 13 is a conceptual diagram illustrating a top swing motion (near the motion posture A3) in a golf swing. As is apparent from a comparison of FIGS. 12 and 13, the club top of the golf club 4 moves in substantially the same manner in the finish operation and the top swing operation. Accordingly, the motion posture A7 to the motion posture A7 n frames before (−n) and the motion posture A3 n frames after the motion posture A3 (+ n) are close to the motion vectors of the feature points of the club head in the captured image G10. The frame image cannot be narrowed down only by the motion vector. For this reason, in S28, the frame image is narrowed down based on the positional relationship of the second feature point (person 1's hand).

  In S29, the system controller 13 reproduces the moving image data recorded in the storage device 15 synchronously so as to move in accordance with the operation of the person 1 in the captured image G10 from the position of the narrowed frame image. Then, the captured image G10 is displayed on the display screen G of the display unit 11 and synchronized playback is performed (S29). For reproduction of moving image data, the motion vectors indicating the motion of the feature points calculated by the feature point extraction unit 182 for the captured image G10 and the narrowed frame image are compared, and the motion vectors of the feature points of the captured image G10 are compared. By adjusting the frame rate and the reproduction direction during reproduction so as to match the above, reproduction synchronized with the movement of the person 1 is performed.

  Next, it is determined whether or not the reproduction (“synchronous reproduction”) is ended based on the operation instruction from the operation unit 12 (S30). When the process is to be ended (S30: YES), the synchronous reproduction process in S21 to S29 is ended. If not finished (S30: NO), the system controller 13 returns the process to S21 and continues the synchronous reproduction process.

  14 and 15 are conceptual diagrams showing an example of synchronized playback. As shown in FIG. 14, on the display screen G, the reproduced image G1 of the captured image G10 and the reproduced image G2 of the moving image data may be displayed side by side. In this way, the display image G1 includes a reproduction image G1 obtained by reproducing the captured image G10 obtained by imaging the person 1 and a reproduction image G2 obtained by reproducing the moving image data recorded in the storage device 15 in accordance with the movement posture of the person 1. Therefore, the person 1 can confirm in real time the deviation in the predetermined motion posture when practicing a series of motions according to his / her motion.

  Further, as shown in FIG. 15, the captured image G10 and the image for reproducing moving image data may be displayed on the display screen G as a reproduction image G3 in which one is transmitted and superimposed on the other. In this case, the difference between the overlapped portion is extracted, and a different area is detected based on the extracted difference, so that the different area may have a display mode different from other areas. Specifically, as shown in the illustrated example, different areas may be displayed with dotted lines or the like. By setting different regions in different display modes in this way, the person 1 can clearly recognize a shift in a predetermined motion posture when practicing a series of motions.

  As described above, the display device 10 sequentially captures the captured image G10 obtained by capturing the motion of the person 1 from the imaging device 20 via the communication unit 14. The display device 10 uses the feature point extraction unit 182 to obtain a predetermined feature from a plurality of continuous motion postures of a captured image G10 and a moving image in which a series of motions related to the practice of the person 1 is recorded in the storage device 15 in advance. Extract points. The display device 10 detects the difference between the position of the feature point extracted from the captured image G10 and the position of the feature point extracted from a plurality of continuous motion postures of the moving image by the relative position detection unit 183. . The display device 10 includes a display unit that displays a frame image similar to the motion posture of the person 1 together with the captured image G10, in which a detected difference is within a predetermined threshold among a plurality of continuous motion postures included in the moving image. 11 is displayed. Therefore, the person 1 who uses the display device 10 can check the deviation from the predetermined movement posture when practicing a series of movements according to the movement of the person 1 himself / herself.

  Next, a modified example of the display device 10 will be described. FIG. 16 is a perspective view illustrating a usage example of the display device 10 according to the modification. As shown in FIG. 16, the display device 10 may be a television-type display device installed at a golf practice place or the like. Specifically, the display device 10 may be installed so as to be positioned in front when the person 1 performs a golf swing so that the display device 10 can confirm in real time when practicing the golf swing.

  FIG. 17 is a block diagram illustrating a system configuration according to a modification. As in the system configuration illustrated in FIG. 17, the display device 10 and the imaging device 20 are server devices 30 that are information devices such as a PC (Personal Computer) and a WS (Work Station) via a communication network N such as a wireless LAN. It may be configured to connect with. In such a system configuration, recording of moving images in the storage device 15 and image processing performed by the image processing unit 18 are handled by the server device 30, and the display device 10 displays image data output by the server device 30. May only do.

  DESCRIPTION OF SYMBOLS 1 ... Person, 2 ... Head, 3 ... Golf ball, 4 ... Golf club, 10 ... Display apparatus, 11 ... Display part, 12 ... Operation part, 13 ... System controller, 14 ... Communication part, 15 ... Memory | storage device, 16 DESCRIPTION OF SYMBOLS DRAM ... 17 Input / output I / F part, 18 ... Image processing part, 20 ... Imaging device, 21 ... Imaging element, 22 ... A / D conversion part, 23 ... Communication part, 30 ... Server apparatus, 181 ... CODEC part 182 ... feature point extraction unit, 183 ... relative position detection unit, A1 to A7 ... operation posture, F ... frame, G ... display screen, G1-G3 ... reproduced image, G10 ... captured image, P1-P9 ... feature point, N ... Communication network

Claims (9)

An image capturing section that sequentially captures captured images captured as a plurality of continuous motion postures of the user's motion;
A recording unit that records a basic motion image composed of a plurality of continuous motion postures;
A feature point extraction unit for extracting a predetermined feature point from the plurality of continuous motion postures of the captured image and the basic motion image;
A detection unit that detects a difference between the position of the feature point of the predetermined motion posture in the captured image and the position of the feature point extracted from the plurality of continuous motion postures of the basic motion image;
A display unit for displaying the motion posture of the basic motion image in which the detected difference is within a predetermined threshold together with a predetermined motion posture of the captured image;
A display device comprising: The detection unit sequentially changes the predetermined motion posture to detect a difference;
The display unit sequentially displays the changed motion posture of the captured image together with the motion posture of the basic motion image;
The display device according to claim 1. When there are a plurality of motion postures in which the detected difference is within a predetermined threshold, the display unit shows a motion of a feature point similar to a motion of a feature point of the captured image from the plurality of motion postures. Narrow down and display the movement posture,
The display device according to claim 2. The feature point extraction unit extracts a plurality of predetermined feature points from the motion posture,
The detection unit detects, for each of a plurality of extracted feature points, a difference between the position of the feature point extracted from the captured image and the position of the feature point extracted from the basic motion image,
When there are a plurality of motion postures in which the difference between any one of the detected feature points is within a predetermined threshold, the display unit displays the difference between the detected other feature points from the plurality of motion postures. Based on the movement posture,
The display apparatus as described in any one of Claims 1 thru | or 3. The display unit displays the basic operation image and the captured image side by side;
The display apparatus as described in any one of Claims 1 thru | or 4. The display unit displays one of the basic operation image and the captured image in a transparent state and superimposed on the other;
The display apparatus as described in any one of Claims 1 thru | or 4. The display unit displays a different area when the basic motion image and the captured image are overlapped with each other in a display mode different from other areas.
The display device according to claim 6. The plurality of continuous motion postures are motion postures in a motion of swinging a club,
The feature point extraction unit extracts the club head portion included in the captured image and the basic motion image as a feature point.
The display device according to claim 1. A display method executed on a display device,
Sequentially capturing captured images captured as a plurality of continuous motion postures of the user's motion;
A recording step for recording a basic motion image composed of a plurality of continuous motion postures;
Extracting predetermined feature points from the plurality of continuous motion postures of the captured image and the basic motion image;
Detecting each difference between the position of the feature point of the predetermined motion posture in the captured image and the position of the feature point extracted from the plurality of continuous motion postures of the basic motion image;
Displaying the motion posture of the basic motion image in which the detected difference is within a predetermined threshold together with a predetermined motion posture of the captured image;
Display method including.

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