JP2009278329A - High-speed photographic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To select a range of image to store from images continuously photographed with excellent ease of operation. <P>SOLUTION: The high-speed photographic apparatus includes a high-speed camera 4 for storing images photographing an object 1 by 100 or more frames per second and a storage and reproduction part 6 for capturing, storing, and reproducing the stored image. The storage and reproduction part 6 includes: a display part 6g for displaying a display image 20 which includes a display operation part having a time axis 21 having a time corresponding to the frame number of the stored image and a current frame index 23 and a first image display region part; a device 6e for designating an optional position on the display image 20; a data processing part 6a; and a memory 6b. When the current frame index 23 is moved to a desired time on the time axis 21 according to an operation instruction of the device 6e, the data processing part 6a arranges a plurality of images near the current frame number equivalent to the current frame index position to the display image 20 side by side from the high-speed camera 4 and displays them. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a high-speed imaging apparatus that continuously captures a subject to be imaged at a high speed and stores it as a moving image.

  In high-speed shooting, an image taken by a camera is recorded on a film or stored on a magnetic tape. However, in recent years, with the advancement of digital technology, it is stored as a digital image.

  High-speed shooting means continuous shooting at a speed of about 100 frames or more per second, and if the image stored by high-speed shooting is played back and displayed at a speed of 30 frames per second, the subject to be shot is displayed by slow motion display. The state of the object can be observed.

  Currently, the high-speed photography devices that are generally used have a storage / playback unit connected to the high-speed camera via a cable, and convert images taken continuously by the high-speed camera into digital images in synchronization with the shooting speed. , Temporarily store in a dedicated high-speed memory built into the camera. This temporarily stored image is overwritten and disappears in the next shooting, so when the high-speed memory is full or after the shooting is finished, the dedicated high-speed memory can be used to store the playback / recording unit via a cable. A method of transferring and storing in a memory and reproducing and displaying it at a necessary time is used (Patent Document 1).

  In this way, images that are continuously shot with a high-speed camera are temporarily stored in the high-speed memory dedicated to the high-speed camera without passing through a cable, so that the shooting speed can be increased without being limited by the communication speed. it can. In addition, the storage / playback unit does not require a special memory, and can be permanently stored in the memory in the PC using a normal PC (personal computer).

FIG. 5 is a schematic configuration diagram showing a conventional high-speed photographing apparatus.
This high-speed photographing apparatus includes a high-speed camera 110 and a storage / playback unit 120. The high-speed camera 110 converts an image continuously taken at a high speed into a digital image and stores it in a high-speed semiconductor memory 110a. The storage / playback unit 120 is typically a PC including a CPU 120a, a memory 120b such as a main memory or a disk, and a display unit 120c. After the image stored in the semiconductor memory 110a is captured and stored in the memory 120b, Reproduced and displayed on the display unit 120c.

  By the way, in high-speed shooting, since the number of images is very large, a memory having a large storage capacity (for example, 10 GB) is used as the semiconductor memory 110a of the high-speed camera 110. As a result, it takes several minutes (for example, about 3 to 4 minutes when the transfer speed is 50 MB / s) for the storage / playback unit 120 to capture all the images stored in the semiconductor memory 110a of the high-speed camera 110. Take it. In addition, the memory 120b of the storage / playback unit 120 is also limited in storage capacity, and a large-capacity image cannot be stored over a long period of time.

  Therefore, the storage / playback unit 120 selects and captures only a necessary part of all the images stored in the semiconductor memory 110a of the high-speed camera 110 and stores them in the memory 120b.

  FIG. 6 is a schematic diagram of the display screen 121 of the display unit 120c at the time of image capturing operation in the storage / playback unit 120.

  A time axis 122 is formed on the display screen 121. The time axis 122 represents the time corresponding to the frame numbers of all the images arranged in time series stored in the memory 110 a of the high-speed camera 110. When the operator uses the mouse to point the cursor 123 at the current frame index 124 and drags the cursor 123 to move to an arbitrary time on the time axis 122, the storage / playback unit 120 displays the current frame index 124 of the movement stop destination. An image having a frame number corresponding to the time is taken from the memory 110a of the high-speed camera 110, overwritten in a predetermined area of the display screen 121, and displayed as a current image 125.

  As a result, the operator checks the current image 125 while moving the current frame index 124, and when it is determined that the image is required, the operator sets the start frame by clicking the start frame setting button 126 with the cursor 123. To do. That is, the start frame index 127 existing on the time axis 122 is automatically moved to the position of the current frame index 124 to set the start frame.

  Similarly, the current image 125 is confirmed while moving the current frame index 124, and the end frame is set by clicking the end frame setting button 131. That is, the end frame index 129 moves to the position of the current frame index 124, and the end frame is set.

  Next, when the temporary playback button 128 is clicked using the mouse and the cursor 123, images from the set start frame to the end frame index 129 existing on the time axis 122 are stored in the memory of the high-speed camera 110 according to a predetermined thinning number. 110a is sequentially thinned out and overwritten on the current image 125. Thereby, a rough moving image display is performed.

  As described above, when the temporary playback button 128 is clicked and the start frame and the end frame are corrected based on the image displayed as a moving image, when the capture button 130 is clicked, the interval between the start frame index 127 and the end frame index 129, that is, All images from the start frame to the end frame are captured from the memory 110a of the high-speed camera 110 and stored in the memory 120b.

Further, a frame number display system 135 for displaying a start frame number 132, a current frame number 133, an end frame number 134, and the like is provided on the display screen 121.
Japanese Patent Application Laid-Open No. 08-079680

  However, in the high-speed photographing apparatus as described above, when selecting an image range from all the images stored in the memory 110a of the high-speed camera 110, the current frame index 124 is dragged and the movement is stopped and the display screen is sequentially displayed. The current image 125 is displayed on the screen 121 for confirmation, and a start frame and an end frame that are image ranges are selected.

  For this reason, in the method for selecting a start / end frame as described above, after the current frame index 124 is dragged with the cursor 123 to stop moving on the time axis 122, the position (time) of the current frame index 124 is stopped. Since there is a time delay until the current image 125 corresponding to the frame number is captured and displayed, and the number of frames is large, when the current frame index 124 is dragged and moved, it is within a short range of the time axis. Since there are quite a large number of frames, there is a problem that the movement of a small number of frames is difficult because of dragging.

  Further, as a result of confirming the current image 125, the current frame index 124 is frequently overrun by the cursor 123, and each time the backward operation of the current frame index 124 is repeated many times, a fine frame number must be set. There is a problem that the efficiency is remarkably poor and the feeling of fatigue (burden) due to operation increases.

  In addition, it is preferable to determine that the start frame and the end frame include a necessary part with a sufficient balance, but when setting the end frame, an image of the end frame (end image) is displayed as the current image 125. Since the image of the start frame (start image) is not displayed, it is difficult to grasp the balance between the start frame and the end frame. For example, there are too many useless parts on the start side compared to the end side. The current image 125 corresponding to the start frame is displayed again, and the start frame and the end frame must be set while alternately repeating the same process as described above several times.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a high-speed photographing apparatus that can select a desired image range from a large number of continuously photographed images with good operability.

In order to solve the above-mentioned problem, the invention corresponding to claim 1 is a high-speed camera that continuously shoots an object to be photographed at a speed of 100 frames or more per second, converts it into a digital image, and stores it in this high-speed camera. A high-speed photographing device including a storage / reproduction unit that captures, stores, and reproduces captured images, and the storage / reproduction unit has a time corresponding to a frame number of the continuously photographed images. A display unit for displaying a display screen formed by a display operation unit having a time axis and a current frame index that can be set at a position of an arbitrary time on the time axis and a first image display region unit, and the display A pointing device capable of designating an arbitrary position on the display screen, a data processing unit, and a memory,
When the data processing unit moves the current frame index to a position at a desired time on the time axis in accordance with an operation instruction of the pointing device, the data processing unit includes a plurality of frames near the frame number corresponding to the position of the current frame index. The high-speed photographing apparatus is characterized in that images are taken from the high-speed camera and displayed side by side in the first image display area.

  The invention corresponding to claim 2 is the invention corresponding to claim 1, wherein the data processing unit of the storage / playback unit is the pointing unit selected from a plurality of images displayed in the first image display region unit. When one image is designated by the device, it is recognized as a start image, and when the current frame index is moved to another position at a desired time on the time axis according to an operation instruction of the pointing device, A plurality of images near the frame number corresponding to the position of the current frame index are captured from the high-speed camera, displayed side by side in the first image display area, and the frame corresponding to the displayed different position When one image is designated by the pointing device from among a plurality of images near the number, it is recognized as an end image, and from the start image to the end image. A high speed imaging apparatus and to store the images the continuous shooting until the image in the memory crowded taken from the high-speed camera.

  By taking the above measures, multiple images near the current frame index are displayed, so you can select the start frame and end frame without repeating the detailed index dragging. The necessary image range can be selected with good operability without having to be repeated.

  According to a third aspect of the present invention, in addition to the display operation unit and the first image display area unit, a display screen displayed on the display unit which is the configuration of the invention corresponding to the second aspect is newly added. A second image display area unit is provided, and the data processing unit displays the start image specified by the pointing device and the end image specified by the pointing device in the second image display area unit. It is a configuration to display.

  By taking such a means, the start image and the end image are displayed in the second image display area part separate from the current image, so the start frame can be set while viewing the end image, or The end frame can be set while viewing the start image. This makes it possible to easily balance the start frame and the end frame.

In the invention corresponding to claim 4, the storage / playback unit can be set at a time axis having a time corresponding to the frame number of the continuously shot image and at an arbitrary time position on the time axis. A display unit formed of a display operation unit having a current frame index, a first image display region unit, and a second image display region unit, and an arbitrary position on the display screen of the display unit A pointing device capable of designating, a data processing unit, and a memory,
As the data processing unit, when the current frame index is moved to a position at a desired time on the time axis according to an operation instruction of the pointing device, an image of the frame number corresponding to the position of the current frame index is displayed. Capture from the high-speed camera and display it as a current image in the first image display area, and display the current image as a start image in the second image display area, and also operate the pointing device When the current frame index is moved to another position at a desired time on the time axis in accordance with the instruction, the image of the frame number corresponding to the other position is captured from the high-speed camera and the first image Displaying as a current image in the display area, and displaying the current image as an end image in the second image display area; A high speed imaging apparatus for storing in said memory an image the continuous shooting up the finished image from the start image crowded taken from the high-speed camera.

  By taking such means, the same operation and effect as the invention corresponding to claim 3 are obtained.

Furthermore, in the invention corresponding to claim 5, the storage / reproduction unit is set to a time axis having a time corresponding to a frame number of the continuously shot image and an arbitrary time position on the time axis. A display unit for displaying a display screen formed by a display operation unit having a possible start frame index and an end frame index, a first image display region unit, and a second image display region unit, and display of the display unit A pointing device capable of designating an arbitrary position on the screen, a data processing unit, and a memory;
As the data processing unit, when the start frame index is moved to a position at a desired time on the time axis according to an operation instruction of the pointing device, an image of the frame number corresponding to the position of the start frame index is displayed. Captured from the high-speed camera and displayed as a start image in the first image display area unit, and the end frame index at another position at a desired time on the time axis according to an operation instruction of the pointing device When moved, the image of the frame number corresponding to the position of the end frame index is captured from the high-speed camera and displayed as the end image in the second image display area, and from the start image to the end A high-speed photographing device that captures the continuously photographed images up to the image from the high-speed camera and stores them in the memory. That.

  By taking such means, the same operation and effect as the invention corresponding to claim 3 are obtained.

  According to a sixth aspect of the present invention, in addition to the configuration of any one of the first to fifth aspects, an X-ray generator that irradiates an X-ray toward an object to be imaged, and the front side of the high-speed camera And an X-ray visible light converting means for converting an X-ray transmission image transmitted through the object to be photographed into a visible light transmission image and introducing it into the field of view of the high-speed camera. It is a high-speed imaging device which continuously images the transmission image of the above with the high-speed camera.

  As a result, an X-ray transmission image of the object to be imaged can be continuously captured at high speed, and the same operations and effects as the inventions of claims 1 to 5 are achieved.

  ADVANTAGE OF THE INVENTION According to this invention, the high-speed imaging device which can select the image range desired from many images continuously image | photographed with sufficient operativity can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a block diagram showing a first embodiment of a high-speed photographing apparatus according to the present invention.
The high-speed imaging apparatus is an apparatus that captures the state of collision of the subject 1 at a high speed, and is disposed immediately below the drop of the subject 1 emitted from the emitter 2 that emits the subject 1 and the emitter 2. The collision member 3, the high-speed camera 4, the trigger signal generator 5, the storage / reproduction unit 6, and the like.

  As the subject 1 to be imaged, for example, various portable electronic devices can be considered. Here, a mobile phone will be described as an example.

  The emitter 2 always supports the subject 1 and drops the subject 1 by removing the support at a predetermined timing, and a guide plate or a guide tube having a required shape in the dropping direction of the subject 1. A guide portion 2a such as a body is projected. The guide portion 2a is made of a material having a small surface friction, and has a property that the subject 1 slides and falls with a small frictional resistance. The reason why the subject 1 is slid along the guide portion 2a is to prevent the subject 1 from rotating while falling and cause the subject 1 to collide with the collision member 3 in a stable posture.

  Since the collision member 3 needs to be tested by changing the impact of the collision, a plurality of collision members 3 are prepared so that they can be replaced with ones made of various materials (for example, plastic material, concrete material, etc.).

  The emitter 2 and the collision member 3 have a field of view FOV (Field Of View) of the high-speed camera 4 in the state of the fall of the subject 1 that slides and falls while being in contact with the guide portion 2a and the state of the impact when it collides with the collision member 3. ) Is placed inside.

  The distance between the lower end of the guide portion 2a and the collision member 3 is at least a distance space longer than the length of the subject 1, and more preferably the length of the subject 1 is greater than the length of the subject 1. It is desirable that the distance space be such that it hits 3 and bounces back and does not contact the lower end of the guide portion 1a. Thereby, the high-speed camera 4 can image a collision and a bounce in a state where the subject 1 does not collide with the guide portion 2a.

  The high-speed camera 4 includes a lens, an image sensor such as a CCD sensor or a CMOS image sensor, an AD converter, a memory 4a, and the like, and forms an image of the subject 1 entering the field of view FOV on the image sensor with the lens. The image sensor converts the electrical signal into an electrical signal, and the electrical signal is converted into digital data (digital image) by an AD converter and stored in the semiconductor memory 4a.

  As the high-speed camera 4, a camera that continuously shoots at a speed of 100 frames per second or more is used. A normal video shooting camera continuously captures and stores 30 frames per second, and plays back and displays a movie at the same speed of 30 frames per second. However, the high-speed camera 4 continuously captures and stores 100 frames per second or more. Slow motion display is possible by playing and displaying at a frame rate of 2 seconds. That is, the high-speed camera 4 sequentially stores a series of digital images taken continuously at a speed of 100 frames per second or more in the memory 4a. If the effective capacity is 10 Gbytes, the memory 4a can store a 1 Mbyte digital image for about 10,000 frames.

  A trigger signal generator 5 is attached to the collision member 3. The trigger signal generator 5 includes, for example, a strain sensor (strain gauge) and an electric circuit, and detects the vibration of the collision member 3 when the subject 1 collides with the change of the electric resistance of the strain sensor. The electric circuit extracts the strain sensor output as a vibration signal, generates an electric trigger signal when the vibration signal level exceeds a predetermined value, and transmits the trigger signal to the high-speed camera 4.

  The high-speed camera 4 starts imaging immediately before the subject 1 falls or immediately before the subject 1 collides, and sequentially stores it in the memory 4a. However, when the trigger signal sent from the trigger signal generator 5 is received, the trigger point is set, and the storage control of the digital image in the memory 4a is performed in accordance with a ratio arbitrarily set in advance in the high-speed camera 4. Accordingly, the digital image before the trigger point is also stored in the memory 4a of the high-speed camera 4.

  For example, if the ratio set for the high-speed camera 4 is 10% before the trigger point and 90% after the trigger point, a digital image captured by the high-speed camera 4 from the trigger point as shown in FIG. Overwriting is repeated until 90% is reached, and shooting is finished 10% before the trigger point. As a result, if 90% after the trigger point is added to 10% before the trigger point, the effective capacity of the memory 4a can be used effectively, and the state of impact after the collision can be imaged from the state before the collision of the subject 1.

  As the storage / reproduction unit 6, a unit that performs processing equivalent to that of an ordinary personal computer is used. In terms of configuration, a data processing unit 6a composed of a CPU, a memory 6b such as a main memory and a disk, an interface 6c, a keyboard 6d, a pointing device 6e such as a trackball and a mouse, and a display unit 6g.

  The storage / playback unit 6 is connected to the high-speed camera 4, reads an image stored in the memory 4a via the interface 6c, stores the image in the memory 6b in a time series and permanently, and plays back at an arbitrary time. It has a function to display.

Next, the operation of the high-speed photographing apparatus as described above will be described.
First, the operator holds the subject 1 in the emitter 2.
Next, shooting of the high-speed camera 4 is started, and shooting with the high-speed camera 4 and overwriting in the memory 4a are repeated. The image of the subject 1 entering the field of view FOV is converted into an electrical signal by the high-speed camera 4 and further converted into a digital image, and is stored in the memory 4a while repeatedly overwriting the oldest image with the latest image. You can continue.

  At this time, when the subject 1 is dropped from the emitter 2, the subject 1 falls through the guide portion 2 a, enters the field of view FOV of the high-speed camera 4, and collides with the collision member 3.

  When the subject 1 collides with the collision member 3, the trigger signal generator 5 transmits a trigger signal to the high-speed camera 4 when the subject 1 collides. The high-speed camera 4 uses the trigger point when the trigger signal from the trigger signal generator 5 is received as the trigger point. As described above, the high-speed camera 4 ends the shooting when the 90% of the effective capacity of the memory 4a is overwritten from the trigger point. As a result, the time series digital image of 10% before the trigger point (collision point) and 90% after the trigger point is stored in the memory 4a of the high-speed camera 4.

  Next, the display screen 20 of the display unit 6g shown in FIG. 3 will be described prior to the description of the image capturing operation by the storage / reproduction unit 6. FIG. 3 is a schematic diagram showing a screen at the time of image capture operation in the storage / reproduction unit 6.

  First, the storage / playback unit 6 causes the data processing unit 6a to display a display operation unit, a first image display region unit, and a second display unit on the display screen 20 in accordance with an image capture operation instruction input from the keyboard 6d, the pointing device 6e, or the like. The initial image having the image display area is displayed.

  The display operation unit is displayed on the lower right side of the display screen 20, specifically, a bar having a time corresponding to the frame number of all the images arranged in time series stored in the memory 4 a of the high-speed camera 4. The current frame index 23 and the start frame index 24 that are set to move at an arbitrary time on the time axis 21 are automatically moved to the position of the current frame index 23 by using the pointing time axis 21, the pointing device 6 e and the cursor 22. A start frame setting button 25 to be moved and an end frame setting button 27 for automatically moving the end frame index 26 to the position of the current frame index 23 are formed.

  Further, the display operation unit has the same functions as the current image display step 30 having the step down button 28 and the step up button 29 on the upper side of the time axis 21, the temporary playback button 128 and the capture button 130 described above. The temporary playback button 31 and the capture button 32 are arranged. Further, on the lower side of the time axis 21, a start frame number display unit 33, a current frame number display unit 34, an end frame number display unit 35, a selected frame number display unit 36, and A time display unit 37 for displaying a time corresponding to the number of selected frames is provided.

  Further, in the first image display area portion arranged in the upper right portion of the display screen 20 in the figure, a plurality of (for example, nine) current images 43 (43a to 43i) near the current frame number indicated by the current frame index 23 are displayed. ) Is displayed. On the other hand, a start image 41 and an end image 42 are displayed in the second image display area arranged in the upper left and lower stages of the display screen 20 based on the setting operation of the display operation unit.

A series of image capture operations by the data processing unit 6a in the storage / reproduction unit 6 will be described.
When the operator drags the current frame index 23 using the pointing device 6e and the cursor 22 and moves it to an arbitrary time on the time axis 21, the data processing unit 6a corresponds to the movement position of the current frame index 23. A plurality of (nine) images near the current frame number are taken from the memory 4a of the high-speed camera 4, and a process based on a predetermined reduction rate is performed to overwrite the nine current images 43a to 43i in a predetermined area of the memory 6b. Then, the reduced image is displayed in the first image display area portion of the display screen 20. The current image 43e is an image having a central current frame number corresponding to the position of the current frame index 23, and the current frame number is displayed on the current frame number display unit 34.

  At this time, the display step 30 uses the pointing device 6e and the cursor 22 to thin out a plurality of (nine) images near the current frame number set by clicking the step down button 28 or the step up button 29. A number, for example 3 steps, is displayed. Three steps means that four current images are captured every three steps before and after the current image 43e, and a total of nine current images 43a to 43i are displayed. When the step down button 28 or the step up button 29 is clicked using the pointing device 6e and the cursor 22, the current image 43 is displayed with the thinning-out number changed or increased.

  In the above state, the operator confirms the current image 43 being displayed, clicks one of the current images, for example, 43c, specifies the selection state (double frame), and then clicks the start frame setting button 25. Then, the start frame number is selected and displayed on the start frame number display unit 33.

  As the start frame setting button 25 is clicked, the start frame index 24 automatically moves to the position corresponding to the time of the start frame number on the time axis 21, and the image of the start frame number is the current image 43. Separately, it is displayed as a start image 41 in the upper part of the second image display area of the display screen 20.

  Subsequently, when the operator drags the current frame index 23 using the pointing device 6e and the cursor 22 and moves it to a time corresponding to the end frame of the time axis 21, the data processing unit 6a displays the current frame index 23. A plurality of (nine) images near the current frame number corresponding to the moving position are taken from the memory 4a of the high-speed camera 4, and the nine current images 43a to 43i are overwritten in a predetermined area of the memory 6b in accordance with a predetermined reduction ratio. Then, the reduced image is displayed in the first image display area of the display screen 20. Here, the data processing unit 6a confirms the current image 43 being displayed by the operator, selects one of the current images, and then clicks the end frame setting button 27 to end the selected end frame number. In addition to being displayed on the frame number display unit 35, the end frame index 26 is automatically moved to the position corresponding to the time of the end frame number on the time axis 21, and the image of the end frame number is separated from the current image 43. The image is displayed as an end image 42 in the lower part of the second image display area of the display screen 20.

  Note that the start image 41 and the end image 42 displayed side by side on the display screen 20 are observed, and when it is desired to change, the start frame number and the end frame number are changed as described above.

  The data processing unit 6a displays the start frame number ns, the current frame number n, and the end frame number ne on the start frame number display unit 33, the current frame number display unit 34, and the end frame number display unit 35 as described above. As soon as there is a change, the changed frame numbers ns, n and ne are updated and displayed.

  Further, the data processing unit 6a calculates the selected frame number N (= ne−ns + 1) based on the start frame number ns and the end frame number ne, and displays it on the selected frame number display unit 36. Time T required for shooting (number of frames N × shooting time interval) is calculated and displayed on the time display unit 37.

  Next, when the temporary playback button 31 is clicked, the data processing unit 6a sequentially fetches images from the start frame to the end frame from the memory 4a of the high-speed camera 4 according to a predetermined thinning number, and starts the start image 41 or the end image 42 or The current image 43 is overwritten and displayed on the display screen 20. As a result, a schematic moving image is displayed on the display screen 20.

  If the temporary reproduction process is not favorable, the start frame and the end frame are corrected. Then, when it is determined that the images are the appropriate start frame image and end frame image, when the capture button 32 is clicked, all images from the start frame to the end frame are captured from the memory 4a of the high-speed camera 4 and stored in the memory. Store in 6b. With the above processing, a series of image capturing operations is completed.

  When the capture of the image is completed, the image stored in the memory 6b can be reproduced and displayed as many times as necessary by the storage / reproduction unit 6, and any one frame can be read and displayed as a still image. Further, it is possible to analyze the impact of the impact accompanying the collision of the subject 1 from the image stored in the memory 6b. Further, the image stored in the memory 6b can be sent to another system via a LAN, or can be made available to another system by writing a DVD.

  Therefore, according to the embodiment as described above, a plurality of images near the current frame index 23 are captured and displayed as the current image 43 (43a to 43i) on the display unit 6f. It is possible to select a start frame and an end frame without repeating display switching. This means that the optimal image range can be selected from the captured images with good operability without repeating dragging and waiting for display many times as in the prior art.

  In addition, since the start image 41 and the end image 42 are displayed separately from the current image 43, the start frame can be set while viewing the end image 42. Conversely, the end frame can be set while viewing the start image 41. Can do. As a result, by balancing the start frame and the end frame, it is possible to efficiently capture the optimum reproduction image and permanently store it in the memory 6b. Further, since the selected frame number N and the time T corresponding to the selected frame number are automatically displayed on the selected frame number display unit 36 and the time display unit 37, it is possible to grasp the amount of captured images and consequently the use state of the memory 6b. .

(Modification of the first embodiment)
(1) In the first embodiment, the start frame is set before the end frame is set, but the setting order is arbitrary. Both settings can be reconfigured independently.

(2) In the first embodiment, the start image 41 and the end image 42 are displayed separately side by side, but they may be displayed overwritten in one display area. That is, the start image 41 is displayed when the start frame is set, and the end image 42 is overwritten and displayed on the start image 41 when the end frame is set next. Furthermore, when the start frame is reset, the start image 41 is overwritten on the end image 42.

  As a result, the end frame can be set while comparing the start image 41 and the current image 43 (image to be the end image), and conversely, the start frame is compared to the end image 42 and the current image 43 (the image to be the start image). A frame can be set, and the start image 41 and the end image 42 can be balanced.

(3) In the first embodiment, the current frame index 23 is dragged with the cursor 22 and the position is set at an arbitrary time on the time axis 21. However, if it can be set at an arbitrary position on the time axis 21, for example, It may be a method. For example, the current frame index 23 may be automatically moved to the position double-clicked with the cursor 22, or the current frame index 23 may be moved by clicking an up / down button. Further, it may be moved by inputting a numerical value of the frame number.

(4) In the first embodiment, the start image 41 and the end image 42 may not be displayed on the display screen 20. In this case, it is impossible to solve the problem of “it is difficult to balance the start frame and end frame”, which is a conventional problem, but “drag and display wait must be set repeatedly”. Conventional problems can be solved easily.

(5) In the first embodiment, the current image 43 displays nine images centered on the current frame number where the current frame index 23 is located. However, the number of images is not limited to nine. Any number of sheets may be used. Further, even if the current frame number is not necessarily the center, a plurality of images within a predetermined range including the current frame number may be displayed in a predetermined display step. For example, the number may be nine with the current frame number as the beginning, or nine with the current frame number as the end.

(6) In the first embodiment, nine images are displayed as the current image 43 on the display screen 20, but only one image with the current frame number may be displayed. In this case, the conventional problem that “dragging and waiting for display must be set repeatedly” cannot be solved, but the start frame and end frame of the start frame are displayed on the display screen 20. Since the end images are displayed side by side, it is possible to easily solve the conventional problem that it is difficult to balance the start frame and the end frame. Here, as described in the modification (2), the start image 41 and the end image 42 may be overwritten and displayed in one display area. Even in this case, the start frame and the end frame can be balanced as described in the modification example (2).

(7) Furthermore, in the first embodiment, the display of the current image 43, the current frame index 23, and the setting buttons 25 and 27 can be eliminated. In this case, when the start image 41 is set, the start image 41 and the start frame index 24 serve as the current image 43 and the current frame index 23. That is, the start image 41 is changed by dragging the start frame index 24 with the pointing device 6e and the cursor 22, and the start image 41 is set. Here, a start frame (start image) is set every time dragging ends.

  Further, when setting the end image 42, the end image 42 and the end frame index 26 serve as the current image 41 and the current frame index 23. That is, the end image 42 is changed while dragging the end frame index 26 with the pointing device 6e and the cursor 22, and the end image 42 is set. Here, an end frame (end image) is set every time dragging ends.

  When the processing as described above is performed, it is impossible to solve the conventional problem that “dragging and waiting for display must be set repeatedly”, but the image of the start frame and the end frame are displayed on the display screen 20. Since the images are displayed side by side, the start frame and the end frame can be easily balanced, and another conventional problem is that it is difficult to balance the start frame and the end frame. Can solve problems.

(8) Further, in the first embodiment, the time axis 21 represents the entire image range (all frame numbers) taken by the high-speed camera 4, but it represents the partial frame numbers instead of the whole. May be. That is, the range of arbitrary frame numbers n1 to n2 may be displayed by switching the display portion, scrolling, or enlarging the scale.

(9) In the first embodiment, the selected frame number display unit 36 and the time display unit 37 include a selected frame number N (= ne−ns + 1) and a time T required for shooting (selected frame number N × shooting). (Time interval) is displayed, but a display element for displaying the data amount (MB), the reproduction time when the moving image is reproduced may be added.

(10) In the first embodiment, all the images between the set start frame and end frame are captured. However, the images may be sampled according to a thinning number set in advance. For example, a thinning number “3” may be set in advance, and one frame may be captured every three frames. This is effective when it is desired to save the storage capacity of the memory 6b.

(11) In the first embodiment, all images between the set start frame and end frame are captured as they are without being reduced, but may be reduced and captured. Here, the reduction means to reduce the number of matrices by thinning or interpolation. This is effective when it is desired to save the storage capacity of the memory 6b as in the modification (10).

(12) Further, in the first embodiment, all images between the set start frame and end frame are captured without being trimmed, but may be trimmed and captured. Here, trimming is to cut out only the necessary rectangular or square portion. In this trimming process, a desired trimming range is set by drawing a square frame (feeling area ROI) on the start image 41 or the end image 42 using the pointing device (mouse) 6e. The image of the trimming range set from is captured and stored. This is effective when it is desired to save the storage capacity of the memory 6b as described above.

(13) Furthermore, in the first embodiment, the entire image between the set start frame and end frame is captured without being compressed, but the image compressed on the high-speed camera 4 side is captured. You may make it.

(14) Further, in the first embodiment, the same image on the memory 4a by one photographing is captured once by changing the start image and the ending image and taking it in multiple times. It is also possible to edit a plurality of items for permanent storage.

(15) Furthermore, in the first embodiment, image processing may be performed on the high-speed camera 4 side or the storage / reproduction unit 6 side. Examples of the image processing include noise reduction processing such as smoothing and recursive filtering, correction processing such as sensitivity correction, distortion correction, and offset correction, edge enhancement, tone conversion, and the like.

(16) Furthermore, as another example of the first embodiment, a clock generation unit that newly generates a clock for synchronizing the second high-speed camera, the high-speed camera 4 and the second high-speed camera is provided. A configuration may also be adopted in which images from two directions of the subject 1 are continuously captured at high speeds simultaneously with each high speed camera.

  As a result, the images in two directions can be displayed side-by-side on the display screen 20 and displayed in stereo. It is also possible to perform a three-dimensional analysis of the subject 1 using images in two directions.

(17) In the above embodiment, high-speed shooting in the impact test of a mobile phone is assumed, but the present invention is not limited to this. Everything that changes at high speed is subject to photography.

(Second Embodiment)
FIG. 4 is a block diagram showing a second embodiment of the high-speed photographing apparatus according to the present invention. In the figure, parts having the same or equivalent configuration as in FIG.

  This high-speed imaging apparatus is an X-ray in which an X-ray generator 7, an X-ray controller 8, and an X-ray II 9 are arranged on the front side of the high-speed camera 4 in the configuration of the first embodiment (see FIG. 1). In this configuration, a detector 10 is newly added and an X-ray transmission image of the subject 1 is taken.

  The X-ray generator 7 is composed of an X-ray tube and a high voltage generator. For example, an X-ray beam 11 having a required intensity based on a tube voltage and a tube current set from the panel of the X-ray controller 8. Irradiate.

  The X-ray detector 10 is disposed at a position facing the X-ray generator 7, and a two-dimensional spatial resolution of an X-ray beam 11 of a part of the X-rays irradiated from the X-ray focal point F of the X-ray generator 7. The X-ray II (image intensifier) 9 as the X-ray visible light converting means and the high-speed camera 4 are combined.

  The X-ray II 9 converts an X-ray transmission image, which is an X-ray intensity distribution detected on the X-ray detection surface 9 a, into a visible light transmission image and outputs it from the output surface 9 b. Note that the X-ray II 9 is used with little afterglow.

  As described above, the high-speed camera 4 includes a lens, an image sensor such as a CCD sensor or a CMOS image sensor, an AD converter, a memory 4a, and the like, and captures a visible light transmission image on the output surface 9b of the X-ray II 9 with the lens. An image is formed on the element, converted into an electric signal by the image pickup element, and the electric signal is converted into digital data (digital image) by an AD converter and stored in the memory 4a.

  Other configurations are as described in the first embodiment, and here, the description will be given to the description of the first embodiment.

Next, the operation of the high-speed photographing apparatus as described above will be described.
First, the operator fixes the subject 1 so as to enter the X-ray beam 11 irradiated from the X-ray generator 7, performs provisional imaging, and sets necessary conditions. Specifically, the tube voltage and tube current of the X-ray generator 7 are temporarily set from the panel of the X-ray controller 8, and the X-ray beam 11 is irradiated from the X-ray generator 7. An X-ray transmission image passing through the subject 1 is captured by the X-ray II 9 and the high-speed camera 4, stored in the memory 4 a, read by the data processing unit 6, and displayed on the display unit 6 g. While observing the displayed transmission image, the tube voltage, tube current, imaging speed, and gain of the high-speed camera 4 are repeatedly adjusted to set optimum X-ray conditions and imaging conditions.

  When the above condition setting is finished, the subject 1 is held by the emitter 2 and the X-ray beam 11 is irradiated from the X-ray focal point F of the X-ray generator 7. Here, the high-speed camera 4 starts shooting, and saves while repeating high-speed shooting and overwriting to the memory 4a.

  At this time, the subject 1 is dropped from the emitter 2. The subject 1 falls through the guide portion 2 a and the X-ray beam 11 and collides with the collision member 3. The trigger signal generator 5 transmits a trigger signal that the subject 1 has collided to the high-speed camera 4. The high-speed camera 4 uses the trigger signal from the strain sensor 5 as a trigger point, and ends the shooting when 90% of the memory effective capacity image is shot and stored from the trigger point as described above. As a result, the memory 4a of the high-speed camera 4 stores a time-series transmission image of 10% before the trigger point (collision point) and 90% after the trigger point.

  When shooting is completed, the storage / playback unit 6 sets a start frame and an end frame as in the first embodiment, transmits a transmission command to the high-speed camera 4, and ends from the start frame from the high-speed camera 4. The transmission image up to the frame is transmitted and stored. Since a series of image capturing operations here, that is, from the setting of the start frame (start image) and the end frame (end image) to the capture of the image are exactly the same as the operations in the first embodiment, the first The description will be given to the embodiment.

  Next, the data processing unit 6 a of the storage / reproduction unit 6 performs display and analysis processing of the transmission image captured from the memory unit 4 a of the high-speed camera 4.

  According to the second embodiment, the same effects as those of the first embodiment can be obtained in X-ray transmission imaging.

(Modification of the second embodiment)
(1) Also in the modification of the second embodiment, the modification of the first embodiment can be applied as it is.
(2) In the second embodiment, the X-ray II9 is used as the X-ray visible light converting means, but a microchannel plate or the like may be used.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS The block diagram which shows 1st Embodiment of the high-speed imaging device which concerns on this invention. The figure explaining the example which memorize | stores the transmission image continuously image | photographed at high speed in the memory 4a shown in FIG. The schematic diagram showing the display screen at the time of image taking-in operation in a memory | storage / reproduction | regeneration part. The block diagram which shows 2nd Embodiment of the high-speed imaging device which concerns on this invention. 1 is a schematic configuration diagram of a conventional high-speed photographing apparatus. FIG. 6 is a schematic diagram showing a display screen at the time of image capture operation in the storage / reproduction unit shown in FIG. 5.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Subject, 2 ... Ejector, 3 ... Colliding member, 4 ... High speed camera, 4a ... Memory, 5 ... Trigger signal generator, 6 ... Memory | storage / reproduction | regeneration part, 6a ... Data processing part, 6b ... Memory, 6d ... Keyboard, 6e ... Pointing device, 6g ... Display unit, 20 ... Display screen, 7 ... X-ray generator, 9 ... X-ray II, 10 ... X-ray detector, 21 ... Time axis, 22 ... Cursor, 23 ... Current Frame index, 24 ... Start frame index, 25 ... Start frame setting button, 26 ... End frame index, 27 ... End frame setting button, 30 ... Display step, 31 ... Temporary playback button 32 ... Capture button, 33 ... Start frame number display 34: Current frame number display unit, 35: End frame number display unit, 36: Selected frame number display unit, 37: Time display unit, 41 ... Start image, 42 ... End image, 43 ... Current Image.

Claims (6)

A high-speed camera that continuously shoots an object to be photographed at a speed of 100 frames or more per second, converts it into a digital image and stores it, and a storage / reproduction unit that captures and stores and reproduces the image stored in the high-speed camera; In the high-speed photographing device equipped with
The storage / reproduction unit includes a display operation unit having a time axis having a time corresponding to a frame number of the continuously photographed images and a current frame index settable at an arbitrary time position on the time axis. A display unit for displaying a display screen formed by the image display region unit, a pointing device capable of designating an arbitrary position on the display screen of the display unit, a data processing unit, and a memory,
When the data processing unit moves the current frame index to a position at a desired time on the time axis in accordance with an operation instruction of the pointing device, the data processing unit includes a plurality of frames near the frame number corresponding to the position of the current frame index. A high-speed photographing apparatus, wherein an image is captured from the high-speed camera and displayed side by side in the first image display area. In the high-speed imaging device according to claim 1,
The data processing unit in the storage / playback unit recognizes a start image when one image is designated by the pointing device from a plurality of images displayed in the first image display area unit,
Further, when the current frame index is moved to another position at a desired time on the time axis in accordance with an operation instruction of the pointing device, a plurality of images near the frame number corresponding to the position of the current frame index are displayed. The image is captured from the high-speed camera and displayed side by side in the first image display area, and one image is displayed by the pointing device from the plurality of images near the frame number corresponding to the displayed different position. When specified, it will be recognized as an end image,
The high-speed photographing apparatus, wherein the continuously photographed images from the start image to the end image are captured from the high-speed camera and stored in the memory. In the high-speed imaging device according to claim 2,
In addition to the display operation unit and the first image display region unit, a second image display region unit is newly provided on the display screen displayed on the display unit.
The high-speed imaging apparatus, wherein the data processing unit displays the start image designated by the pointing device and the end image designated by the pointing device in the second image display region unit. A high-speed camera that continuously shoots an object to be photographed at a speed of 100 frames or more per second, converts it into a digital image and stores it, and a storage / reproduction unit that captures and stores and reproduces the image stored in the high-speed camera In the high-speed photographing device equipped with
The storage / reproduction unit includes a display operation unit having a time axis having a time corresponding to a frame number of the continuously photographed images and a current frame index settable at an arbitrary time position on the time axis. A display unit configured to display a display screen formed by the image display region unit and the second image display region unit, a pointing device capable of designating an arbitrary position of the display unit on the display screen, a data processing unit, And memory
When the data processing unit moves the current frame index to a position at a desired time on the time axis in accordance with an operation instruction of the pointing device, the data processing unit displays the image of the frame number corresponding to the position of the current frame index. Captured from a high-speed camera and displayed as a current image in the first image display area, and the current image is displayed as a start image in the second image display area;
In addition, when the current frame index is moved to another position at a desired time on the time axis in accordance with an operation instruction of the pointing device, an image of the frame number corresponding to the other position is taken from the high-speed camera. And displaying it as a current image in the first image display area, and displaying the current image as an end image in the second image display area,
The high-speed photographing apparatus, wherein the continuously photographed images from the start image to the end image are captured from the high-speed camera and stored in the memory. A high-speed camera that continuously shoots an object to be photographed at a speed of 100 frames or more per second, converts it into a digital image and stores it, and a storage / reproduction unit that captures and stores and reproduces the image stored in the high-speed camera; In the high-speed photographing device equipped with
The storage / playback unit has a time axis having a time corresponding to the frame number of the continuously captured images and a display having a start frame index and an end frame index that can be set at any time position on the time axis. A display unit on which a display screen formed by the operation unit, the first image display region unit, and the second image display region unit is displayed; and a pointing device capable of designating an arbitrary position of the display unit on the display screen; A data processing unit and a memory;
When the data processing unit moves the start frame index to a position at a desired time on the time axis according to an operation instruction of the pointing device, the data processing unit displays the image of the frame number corresponding to the position of the start frame index. Captured from a high-speed camera and displayed as a start image in the first image display area,
Further, when the end frame index is moved to another position at a desired time on the time axis in accordance with an operation instruction of the pointing device, the image of the frame number corresponding to the position of the end frame index is Taking in from the camera and displaying it as an end image in the second image display area part,
The high-speed photographing apparatus, wherein the continuously photographed images from the start image to the end image are captured from the high-speed camera and stored in the memory. In the high-speed imaging device according to any one of claims 1 to 5,
An X-ray generator that emits X-rays toward the object to be imaged and an X-ray transmission image that is attached to the front side of the high-speed camera and transmits the object to be imaged is converted into a visible light transmission image. And an X-ray visible light converting means to be introduced into the field of view of the high-speed camera,
A high-speed photographing apparatus, wherein the visible light transmission image is continuously photographed by the high-speed camera.

Images