JP4078684B2 - Image display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image display method for displaying a read image of a long film, an image reading apparatus for reading an image of a long film, and a storage medium for storing a control procedure.
[0002]
[Prior art]
An image reading apparatus that reads an image of a film taken by a camera is known as a film scanner. This film scanner reads an image of a negative film or a reversal film under the instruction of a host computer which is a control device, and outputs it to the host computer. The host computer displays a frame image of the film on the monitor screen.
[0003]
By the way, in recent years, a new standard film system that handles a long film (hereinafter referred to as “roll film”) in a state of being accommodated in a cartridge has been proposed. In this new film system, images of all the roughly read frames are displayed in a list on the monitor screen of the host computer, and the images of the frames selected by the user can be read and displayed with high accuracy from the displayed index screen. At this time, if there are a plurality of frames selected by the user, windows corresponding to the number of frames can be opened and displayed as independent images.
[0004]
[Problems to be solved by the invention]
However, if the images of multiple frames selected by the user from the index screen displayed in a list are a series of continuous images taken of, for example, a golf swing motion, each can only be displayed as an independent still image. Is difficult to understand.
[0005]
Also, for example, when taking a picture of the entire landscape that does not fit in one picture, the picture may be taken separately in multiple pictures. When the image of a plurality of frames selected by the user is such a series of continuous images, conventionally, since it cannot be displayed as one image, it is difficult to understand the configuration of the entire image, and depending on the number of frames, the display image is difficult to see. .
The present invention has been made to solve such a problem. An image display method capable of displaying an image having a certain relationship as a moving image or a single still image according to the characteristics of the image, and a certain relationship. It is an object of the present invention to provide an image reading apparatus capable of reading an image and a storage medium for storing a control procedure.
[0006]
[Means for Solving the Problems]
  The image display device according to claim 1, an image acquisition unit that acquires a plurality of still images having a certain relationship, and the acquired still images in order at regular intervals.Switch display while switchingDisplay means and switching displayFrom users in image display devicesIt is characterized by comprising determination means for determining whether or not the specified number of repetitions has been reached, and display control means for terminating the switching display when the determination means determines that the number of repetitions has been reached.
  According to a second aspect of the present invention, in the image display device according to the first aspect of the present invention, the image display device further includes a pause unit that pauses the display switching of the display image in response to an instruction from the outside.
[0017]
    (Function)
  The image display according to claim 1.apparatusThen, a plurality of still images having a certain relationship are acquired, and each acquired still image is sequentially switched and displayed every predetermined time. Therefore, a moving image display comes.Furthermore, when it is determined that the number of repetitions has been reached, the switching display ends.
[0018]
  In the image display device according to the second aspect, the display switching of the display image is temporarily stopped according to an instruction from the outside. Therefore, the scene in the middle of moving image display can be displayed statically..
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of an image reading system for carrying out the present invention. This image reading system includes an image reading apparatus 1 and a host computer 30.
The host computer 30 includes a central processing unit, a program memory, and a working memory. The host computer 30 includes an input device 31 including a keyboard and a mouse as input devices, and a display device 32 having a monitor screen as an output device.
[0023]
The image reading apparatus 1 includes a central processing unit (hereinafter referred to as “CPU”) 10, a memory 11, an interface circuit (hereinafter referred to as “IF circuit”) 12, a motor driving circuit 13, a magnetic signal processing circuit 14, a line sensor driving circuit 15, A signal processing circuit 16, an A / D converter 17, a light source driving circuit 18, a light source 19, a lens 20, a line sensor 21, a magnetic head 22, an optical information reading sensor 23, a document position detection sensor 24, a motor 25, and a cartridge 26 are included. A loading chamber for loading, a conveyance path for a long film (hereinafter referred to as “roll film”) 27 fed out from the cartridge 26 and the like are provided.
[0024]
FIG. 2 is an external view of the roll film 27. The roll film 27 shown in FIG. 2 shows a state in the middle of being fed out from the cartridge 26. The cartridge 26 has a cartridge spool 26b rotatably supported at both ends in the longitudinal direction of a cylindrical case 26a, and an opening 26c is provided on the side. The base end of the roll film 27 is fixed to the cartridge spool 26b and wound, and the entire roll film 27 is stored in the case 26a. The tip moves into and out of the case 26a from the opening 26c in accordance with the forward / reverse rotation drive of the cartridge spool 26b.
[0025]
As shown in FIG. 2, the predetermined area | region of the front-end | tip (drawing-out end) part shown to the right in the figure of the loam film 27 is called a leader part. An image storage area 70 for each frame is provided at a predetermined interval after the leader portion.
The leader portion is provided with a magnetic storage area 71 and a perforation 72 on one end side in the film width direction. The leader portion is provided with a magnetic storage area 73 and a barcode 74 on the other end side in the film width direction.
[0026]
In each frame, two perforations 75 and 76 are provided outside one end of the image storage area 70 in the film width direction. Each frame is provided with a magnetic storage area 77 outside the other end of the image storage area 70 in the film width direction. Although not shown, perforation indicating the final is provided on the rear end side after the final frame.
[0027]
In the magnetic storage areas 71 and 73, film information of the film is stored. The bar code 74 displays the film information of the film by the density difference. The film information includes the type and type of the film, the frame number, the total number of frames, and the like. The type of the film refers to whether the film is a color film, a monochrome film, a positive film, a negative film, or the like.
[0028]
Each magnetic storage area 77 stores information related to shooting such as a frame number, title, shooting date and time, shooting conditions, and designated print size. These can be written when the camera is shooting. The shooting conditions include information on whether the shooting direction of the frame is vertical or horizontal (shooting direction information), and information on whether the frame is a part of a continuous scene (continuous shooting scene information). And are included.
[0029]
As described above, continuous scene shooting includes, for example, shooting a series of golf swing motions and shooting a subject that does not fit in one frame, such as a landscape, divided into a plurality of frames. These are usually photographed under the same exposure conditions. In addition, associated information may be recorded in a plurality of frames related to continuous shooting.
An overview of the image reading apparatus 1 shown in FIG. 1 will be described. The user loads the cartridge 26 into the loading chamber of the image reading apparatus 1. Then, the spool 26 a of the cartridge 26 is connected to the shaft of the motor 25. When the user closes the lid of the loading chamber, in the image reading apparatus 1, power is supplied to each circuit, and each circuit is activated.
[0030]
The motor drive circuit 13 controls the rotation speed, rotation direction, stop, and the like of the motor 25 in accordance with instructions from the CPU 10. When the motor 25 is driven to rotate forward, the roll film 27 is fed from the cartridge 26 to the transport path. When the motor 25 is driven in reverse, the roll film 27 is wound into the cartridge 26 from the conveyance path.
[0031]
The document position detection sensor 24 optically detects each perforation (see FIG. 2) of the roll film 27 and transmits it to the CPU 10. The optical information reading sensor 23 reads the film information of the barcode (see FIG. 2) of the roll film 27 and transmits it to the CPU 10.
The magnetic head 22 reads the magnetic information in the magnetic storage area (see FIG. 2) under the control of the magnetic signal processing circuit 14 and transmits it to the CPU 10. The magnetic head 22 performs writing to the magnetic storage area (see FIG. 2) under the control of the magnetic signal processing circuit 14.
[0032]
The magnetic signal processing circuit 14 digitizes the magnetic information read by the magnetic head 22 and transmits it to the CPU 10 under the control of the CPU 10. The magnetic signal processing circuit 14 gives information to be written to the magnetic storage area (see FIG. 2) to the magnetic head 22 under the control of the CPU 10.
The light source 19 illuminates one surface of the roll film 27 under the control of the light source driving circuit 18. The light source 19 includes, for example, R (red), G (green), and B (blue) light emitting diodes (hereinafter referred to as “LEDs”). In this case, the light source drive circuit 18 controls switching on / off of the three color LEDs of the light source 19 in accordance with an instruction from the CPU 10.
[0033]
The light source 19 may be a white light source. In this case, filters of three colors of R (red), G (green), and B (blue) may be provided. When a three-color filter is provided, a three-color filter switching mechanism is required. The lens 20 is adjusted and arranged to guide the light of the light source 19 that has passed through the roll film 27 to the light receiving surface of the line sensor 21.
[0034]
The line sensor 21 includes an image storage unit that is a plurality of photoelectric conversion units arranged in one row, and a transfer unit that transfers charges stored in each image storage unit. The arrangement direction of the plurality of photoelectric conversion units is referred to as a main scanning direction. The line sensor 21 is arranged such that the light receiving surfaces of a plurality of image storage units arranged in one row are orthogonal to the moving direction of the roll film 27 (referred to as the sub-scanning direction).
[0035]
The line sensor 21 is either a monochrome image sensor or a color image sensor. The light source 19 used in the monochrome image sensor is a light source that switches light of three colors of R (red), G (green), and B (blue) or a white light source. The light source 19 used for the color image sensor is a white light source.
The line sensor drive circuit 15 mainly performs the following control operation in accordance with instructions from the CPU 10. The line sensor drive circuit 15 controls the accumulation operation and accumulation time of the line sensor 21. The line sensor driving circuit 15 performs main scanning control for sweeping accumulated charges (image signals / electrical signals) to the signal processing circuit 16.
[0036]
The signal processing circuit 16 amplifies the signal from the line sensor 21 in accordance with an instruction from the CPU 10, performs signal processing, and supplies it to the A / D converter 17. The signal processing includes processes such as dark current correction, CDS (Correlated Double Sampling), shading correction, and even / odd correction.
The A / D converter 17 converts the image signal sent from the signal processing circuit 16 into a digital signal having a predetermined number of bits and transmits it to the CPU 10. The number of bits is, for example, 8 bits. The memory 11 is a program memory and a working memory. In the present embodiment, the working memory has a capacity capable of storing several frames of image data.
[0037]
The CPU 10 controls each unit in accordance with a program set in the memory 11 to realize various functions of the image reading apparatus. For example, when the cartridge 26 is loaded, the CPU 10 sets the first frame of the roll film 27 to the reading position of the line sensor 21 and performs a standby process. The CPU 10 receives the outputs of the document position detection sensor 24 and the optical information reading sensor 23, and performs perforation position detection, bar code content decoding, and the like.
[0038]
Further, the CPU 10 controls the motor drive circuit 13, the magnetic signal processing circuit 14, the line sensor drive circuit 21, the A / D converter 17, and the light source drive circuit 18 in accordance with a read command input from the host computer 30 via the IF circuit 12. Then, the image and magnetic information of the roll film 27 are read.
[0039]
At this time, in this embodiment, image data for one frame of the roll film 27 is temporarily stored in the memory 11. Image data for one frame is output to the host computer 30 at a time.
The IF circuit 12 of the present embodiment is a SCSI (Small Computer System Interface). The IF circuit 12 gives various commands such as a read command received from the host computer 30 to the CPU 10.
[0040]
The host computer 30 gives various commands input from the keyboard / mouse of the input device 31 to the IF circuit 12. The host computer 30 also displays the image data received from the IF circuit 12 on the monitor screen of the display device 32. In the present embodiment, the host computer 30 acquires several frames of image data having a certain relationship, and performs still image display by displaying or synthesizing the image data.
[0041]
The host computer 30 includes a central processing unit, a program memory (ROM), and a working memory (RAM). The host computer 30 includes a hard disk drive (HDD), and can set up a program stored in a storage medium 30a such as a CD-ROM.
The correspondence between the configuration of FIG. 1 and the claims is as follows. The line sensor 21 mainly corresponds to the image reading unit. The magnetic head 22 mainly corresponds to the magnetic information reading means. The CPU 10 mainly corresponds to the detection means and the control means. A storage medium 30a such as a CD-ROM corresponds to the storage medium.
[0042]
The operation of this embodiment will be described below with reference to FIGS. 3 and 4 are flowcharts of the display operation of the host computer 30. FIG. FIG. 5 is a conceptual diagram of moving image display. FIG. 6 is an explanatory diagram of setting the synthesis direction. FIG. 7 is an explanatory diagram of overlapping of common portions. FIG. 8 is a flowchart of the reading operation of the image reading apparatus 1.
[0043]
In S0 shown in FIG. 3, the host computer 30 displays on the monitor screen of the display device 32 a selection screen for what kind of image reading the image reading device (hereinafter referred to as “scanner” as appropriate) 1 performs. Waiting for user instructions. In this state, the host computer 30 outputs a continuous reading command to the scanner 1 when a continuous reading instruction is input from the input device 31 by a mouse operation or the like.
[0044]
In S <b> 1, the host computer 30 waits for image data including magnetic information to be input from the scanner 1. The scanner 1 reads magnetic information and an image in the procedure shown in FIG. When a plurality of frames of image data having a certain relationship are input from the scanner 1, the host computer 30 makes an affirmative (YES) determination in S1, and executes each process from S2.
[0045]
S2 to S4 are so-called pre-processing, S5 is processing for soliciting user input, S7 to S11 are moving image display processing, and S12 to S17 are composite still image display processing.
First, the pre-processing of S2 to S4 is as follows. In S2, the host computer 30 determines whether vertical position information is included in the magnetic information for each frame. Since the camera position at the time of shooting is written in the magnetic storage area 77, the host computer 30 searches the magnetic information of each frame and detects the frame including the vertical position information.
[0046]
When the vertical information is included in the magnetic information of the frame, the host computer 30 makes an affirmative (YES) determination in S2, and proceeds to S4 via S3. In S3, the host computer 30 rotates the image data of the frame by 90 degrees to obtain a vertical position image. On the other hand, when the vertical position information is not included in the magnetic information of the frame, the host computer 30 makes a negative (NO) determination in S2, passes S3, and proceeds to the process of S4.
[0047]
Then, the host computer 30 determines whether or not preprocessing has been completed for all frames in S4. If not completed, the host computer 30 makes a negative (NO) determination in S4, returns to the process of S1, and waits for the input of the next image data. The processing described above is repeated until the determination in S4 becomes affirmative (YES). If completed, the host computer 30 makes an affirmative (YES) determination in S4 and proceeds to S5.
[0048]
In particular, when shooting a landscape or the like that cannot be accommodated in a single frame, there may be cases where images taken in the vertical position and those taken in the horizontal position are mixed, so the posture of the image is unified in advance by the above preprocessing. The same may be true for shooting a series of motions such as a golf swing motion. If the postures of the images are unified in this way, subsequent image display processing can be performed smoothly.
[0049]
When the above preprocessing is completed, the host computer 30 displays a selection screen for displaying a moving image or a composite still image on the monitor screen of the display device 32. The user determines in advance a frame for displaying a moving image and a frame for displaying a composite still image from the index screen. In S5, the host computer 30 determines whether or not the user inputs a moving image display command on such a selection screen.
[0050]
When the user inputs a moving image display command, the host computer 30 makes an affirmative (YES) determination in S5, sets a switching display time interval t and the number of repetitions in the moving image display command in S6, and displays a moving image display process. (S7 to S11) are executed. The moving image display process (S7 to S11) is performed as follows.
In S7, the host computer 30 switches and displays a series of frame images one by one at intervals of time t on the monitor screen of the display device 32. Thereby, each frame image is displayed in the form of a continuous moving image. For example, as shown in FIG. 5, a series of golf swing motions are displayed as continuous motions. In S8, the host computer 30 determines whether or not the user inputs a temporary still command during the display process.
[0051]
When the user inputs a temporary still command, the host computer 30 makes an affirmative (YES) determination in S8, immediately executes the temporary still command in S9, and statically displays an image when the command is input. In the next S10, the host computer 30 determines whether or not a temporary stillness release command has been input. This still display is continued until an affirmative (YES) determination is made in S10. When the host computer 30 inputs a temporary stillness release command, the host computer 30 makes an affirmative (YES) determination in S10, restarts the moving image display, and proceeds to the processing of S11.
[0052]
On the other hand, if the user does not input a temporary still command in S8, the host computer 30 makes a negative (NO) determination in S8, continues the moving image display, and proceeds to the processing of S11.
In S11, when displaying the last frame image of the moving image display, the host computer 30 determines whether or not the moving image display has reached the designated number of repetitions. If the specified number has not been reached, the host computer 30 makes a negative (NO) determination in S11, and continues the moving image display process in S7. On the other hand, when the moving image display reaches the designated number of repetitions, the host computer 30 makes an affirmative (YES) determination in S11 and ends the moving image display process.
[0053]
Next, when the user inputs a composite still image display command in S5, the host computer 30 makes a negative (NO) determination in S5, and performs the composite still image display processing (S12 to S17) shown in FIG. Execute. Note that the composite still image display command includes designation of whether to synthesize a frame image in the vertical direction or in the horizontal direction. The composite still image display process (S12 to S17) is performed as follows.
[0054]
In S12 shown in FIG. 4, the host computer 30 synthesizes the frame images in the horizontal direction (FIG. 6A) or in the vertical direction as shown in FIG. (B)) is set.
In the next S13, the host computer 30 determines for each frame image whether there is a common part with other frames. For example, a portion (area) where the same image data exists is determined as a common portion (shaded portion in FIG. 7A). For example, there is a method of detecting the common portion based on the affinity of the pixel data level of the image.
[0055]
If there is a common part, the host computer 30 makes an affirmative (YES) determination in S13 and proceeds to S14. In S14, as shown in FIG. 7B, the host computer 30 performs the overlapping process of the common part and proceeds to the process of S15. On the other hand, if there is no common part, the host computer 30 makes a negative (NO) determination in S13, passes the process of S14, and proceeds to the process of S15.
[0056]
When the host computer 30 finishes the above image composition processing, the host computer 30 displays a selection screen for performing full display or partial display on the monitor screen of the display device 32 and waits for a user instruction. In S15, the host computer 30 determines whether the user has selected the entire image display. If the user selects the entire image display, the host computer 30 makes an affirmative (YES) determination in S15, displays the entire composite image in S16, and ends the composite still image display process.
[0057]
On the other hand, when the user selects a part of the image display, the host computer 30 makes a negative (NO) determination in S15, displays a part of the composite image in a scrollable manner in S17, and displays the composite still image display. The process ends. In this case, by scrolling the screen with the mouse, the user can display, for example, the scenery while changing the viewing direction.
[0058]
Next, the reading operation of the image reading apparatus 1 will be described with reference to FIG. In S <b> 21, the CPU 10 performs a process for receiving a continuous reading command sent from the host computer 30 and starts a control operation. In S <b> 22, the CPU 10 sends a command to the motor drive circuit 13 and starts driving the motor 25. The roll film 27 is pulled out from the cartridge 26 and fed to the conveyance path.
[0059]
In S23, the CPU 10 monitors the output of the document position detection sensor 24 and determines whether or not the front perforation 75 (see FIG. 2) of the frame has been detected. Specifically, as shown in FIG. 2, two perforations 75 and 76 are provided for each frame, but another perforation 72 is provided in the leader portion in front of the first frame. Accordingly, the CPU 10 counts the perforation detection signal of the document position detection sensor 24, and determines that the front perforation 75 of the frame has been detected when the perforation detection signal is input an even number of times. This detection operation is performed for each frame.
[0060]
If the front perforation 75 of the frame is detected, the CPU 10 makes an affirmative (YES) determination in S23, and sends a command to the magnetic signal processing circuit 14 in S24 to the magnetic information in the magnetic storage area of the frame. To read. The magnetic information includes shooting direction information and continuous shooting scene information. The CPU 10 detects a frame including continuous shooting scene information in the magnetic information and records the frame number. In this way, a plurality of frames having a certain relationship are detected.
[0061]
In S25, when the reading of the magnetic information of the last frame is completed, the CPU 10 monitors the output of the document position detection sensor 24 and determines whether or not the final perforation provided at the rear end after the last frame has been detected. When the final perforation is not detected, the CPU 10 makes a negative (NO) determination at S25, returns to S25 again, and waits for the final perforation to be detected. When the final perforation is detected, the CPU 10 makes an affirmative (YES) determination in S25, and proceeds to the processing of S26.
[0062]
In S <b> 26, the CPU 10 sends a command specifying a reading frame to the motor driving circuit 13 to drive the motor 25, and moves a frame having continuous shooting scene information to the reading position. In S27, the CPU 10 causes one line image of the corresponding frame to be read. Specifically, the CPU 10 sends a command to the light source driving circuit 18 to cause the light source 19 to emit light. The light source 19 sequentially emits red, green, and blue light. In addition, the CPU 10 sends a command to the line sensor drive circuit 15 to cause the line sensor 21 to read in synchronization with the light source 19 emitting red, green, and blue light sequentially.
[0063]
The line sensor 21 outputs an R (red) signal, a G (green) signal, and a B (blue) signal that are analog image signals. The analog image signal output from the line sensor 21 is subjected to image processing by the signal processing circuit 16, digitized by the A / D converter 17, and stored in the memory 11.
In S28, the CPU 10 counts the number of lines read by the line sensor 21, and determines whether or not the reading of the predetermined number of lines is completed. If the determination in S28 is negative (NO), the CPU 10 returns to S27 and controls the reading of the next line. Then, when the determination in S28 is affirmative (YES), the CPU 10 determines that reading of the images of all the lines of one frame has been completed, and proceeds to the process of S29.
[0064]
In S29, the CPU 10 transmits one frame of image data stored in the memory 11 to the host computer 30 together with the magnetic information. In the next S30, the CPU 10 determines whether or not all the frames having continuous shooting scene information have been read. If the determination in S30 is negative (NO), the CPU 10 returns to S26 again and performs a reading control operation. If the determination in S30 is affirmative (YES), the CPU 10 ends the reading control operation assuming that reading of all the frames has ended.
[0065]
In the above embodiment, the control program for the central processing unit of the host computer 30 is stored in the hard disk drive as the storage medium.
3 and 4 stored in the hard disk is stored in a storage medium 30a such as a CD-ROM so that it can be set up in the host computer 30 in advance.
[0066]
Instead of the central processing unit of the host computer 30, the CPU 10 of the image reading apparatus may be used. Further, the memory 11 of the image reading apparatus may be used instead of the memory of the host computer 30. In that case, the program of the flowcharts of FIGS. 3 and 4 may be stored in a ROM (program memory) or the like. The CPU 10 of the image reading apparatus can execute the program by reading the program stored in the ROM into a memory (working memory).
[0067]
【The invention's effect】
  As described above, the image display according to claim 1apparatusThen, since a moving image can be displayed, even if a series of operations are shot as a still image with a camera, an image of the operation can be given to the viewer. The image display according to claim 2.apparatusThen, since the scene in the middle of the moving image display can be displayed in a static state, it is possible to check the process in the middle of the operation.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an image reading system according to an embodiment of the present invention.
FIG. 2 is an external view of a long film (roll film).
FIG. 3 is a flowchart of a display operation of a host computer.
FIG. 4 is a flowchart of a display operation of the host computer.
FIG. 5 is a conceptual diagram of moving image display.
FIG. 6 is an explanatory diagram of setting an image combining direction.
FIG. 7 is an explanatory diagram of a common portion overlay process;
FIG. 8 is a flowchart of a reading operation of the image reading apparatus.
[Explanation of symbols]
10 Central processing unit (CPU)
11 memory
12 Interface circuit (IF circuit)
13 Motor drive circuit
14 Magnetic signal processing circuit
15 Line sensor drive circuit
16 Signal processing circuit
17 A / D converter
18 Light source drive circuit
19 Light source
20 lenses
21 Line sensor
22 Magnetic head
23 Optical information reading sensor
24 Document position detection sensor
25 motor
26 cartridges
27 Roll film
30 Host computer
30a storage medium
31 Input device
32 display devices

Claims (2)

Image acquisition means for acquiring a plurality of still images having a certain relationship;
Display means for performing switching display while sequentially switching the acquired still images at regular intervals;
Determining means for determining whether the switching display has reached a specified number of repetitions from the user in the image display device ;
An image display apparatus comprising: a display control unit that terminates the switching display when the determination unit determines that the number of repetitions has been reached. The image display device according to claim 1,
An image display apparatus, further comprising: a pause unit that pauses display switching of a display image according to an instruction from the outside.

Images