JP2002044575A - Moving picture capturing device and moving picture capturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moving picture capturing device that surely captures image data of a desired frame. SOLUTION: An image data capturing means 110 of the moving picture capturing device 100 receives an optional moving picture data stream. An image data storage means 120 sequentially store image data of the received moving picture data stream under the control of an image data control means 130. Furthermore, a display signal generating means 150 generates a display signal to display a frame image based on the captured image data, a monitor 300 sequentially displays the display signal and a moving picture is reproduced. When a user uses an operation entry means 140 to operate for instruction of extraction of an optional frame, the image data control means 130 detecting the operation extracts the image data of the frame whose capturing is instructed from the image data storage means 120 and an output signal generating means 160 generates an output signal to print out the image data. The output signal is fed to a printer 500, which prints out the image of the frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving image capturing apparatus and a moving image capturing method, and more particularly to a moving image capturing apparatus for inputting a moving image data stream and extracting image data of an arbitrary frame from the data stream and a moving image thereof. The present invention relates to an image capturing method.

[0002]

2. Description of the Related Art In recent years, image capturing devices such as personal computers which are connected to a digital video camera or the like and have a video capture function for capturing captured video data have become widespread.

Such a moving image capturing device captures a data stream input from a video camera or the like, and reproduces video data based on the data stream and displays the video data on a display device. Further, it has a function of selecting one screen of a video desired by the user, outputting the screen to a frame data printing apparatus to print, or recording the screen on a predetermined recording medium. FIG. 11 is a configuration diagram of a moving image processing system including a moving image capturing device. The printer 600, which is a moving image capturing device having a printing function,
For example, a moving image data stream (hereinafter, referred to as a DV stream) of the digital video camera is received in the isochronous transmission mode from a digital video camera (DV) 200 connected via the IEEE 1394 communication path 400. The received moving image data is displayed on the monitor 300. The processing of the printer 600 will be described. FIG.
5 is a flowchart of a processing procedure of a moving image capturing device having a printing unit. The printer 600 captures the moving image data stream from the digital video camera 200 (S30), decodes the DV data image (S31), and prints the image data as needed (S32).

[0004]

However, there is a problem that the image selection by the conventional moving image capturing apparatus is missed.

[0005] The user selects a desired screen while looking at the monitor 300, but the human operation system is often delayed, and processing is performed in real time after the moving image capturing device receives the selection of the image frame. In the conventional moving image capturing device that performs the operation, when the selection operation is received, the process shifts to the next frame, and a case occurs in which a desired image is missed. In the event of a mistake, the DV from the digital video camera 200
The operation becomes complicated, for example, the user has to return the stream to the front and perform the same operation again.

In addition, a special mechanism is required to perform a process of detecting the head of a frame in real time after receiving a selection operation, and there is a problem that the apparatus becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to provide a moving image capturing apparatus and a moving image capturing method capable of reliably extracting image data of a desired frame. .

[0008]

According to the present invention, there is provided a moving image capturing apparatus for capturing a moving image data stream and extracting image data of an arbitrary frame from the data stream. Image data capturing means for sequentially capturing image data of frames constituting the image data, image data storage means for temporarily storing image data sequentially captured as the moving image data stream, and a display signal for displaying a frame image based on the image data. A display signal generating unit for generating a frame, an operation input unit for instructing to take out the arbitrary frame, and controlling the flow of the image data, and storing the image data of the arbitrary frame instructed to be taken out to the image data storage. Means for extracting image data from the means, Ri out moving image capture apparatus characterized by having the output signal generating means for generating a predetermined output signal based on the image data of an arbitrary frame is instructed, the, is provided.

In the moving image capturing apparatus having such a configuration, an arbitrary moving image data stream is captured into the apparatus by the image data capturing means. According to the image data control means, the image data of the frames constituting the moving image data stream are sequentially stored in the image data storage means. Also, based on the image data of the input frame,
A display signal of the frame image is generated by the display signal generating means, and the frame is displayed based on the display signal. When the user performs an operation for instructing the extraction of an arbitrary frame from the operation input unit, the image data control unit that detects the operation extracts the image data of the frame at the time when the extraction is instructed from the image data storage unit, and In response to the above, a display signal for displaying an image based on the extracted image data is generated by the display signal generation means and displayed. further,
A predetermined output signal based on the image data of an arbitrary frame extracted by the output signal generation means is generated and output.

According to another aspect of the present invention, there is provided a moving image capturing apparatus for capturing a moving image data stream and extracting image data of an arbitrary frame from the data stream. Image data capturing means for sequentially capturing image data, image data storing means for temporarily storing image data sequentially captured as the moving image data stream, operation input means for instructing to take out the arbitrary frame, and a flow of the image data. Control and
Image data control means for extracting image data of any frame instructed to be taken out from the image data storage means, and an output signal for generating a predetermined output signal based on image data of any frame instructed to be taken out A moving image capturing apparatus, comprising: a generating unit.

In the moving image capturing apparatus having such a configuration, an arbitrary moving image data stream is captured into the apparatus by the image data capturing means. According to the image data control means, the image data of the frames constituting the moving image data stream are sequentially stored in the image data storage means. When the user performs an operation of instructing to fetch an arbitrary frame from the operation input unit, the image data control unit that detects the operation extracts the image data of the frame at the time when the fetch is instructed from the image data storage unit. The output signal generation means generates and outputs a predetermined output signal based on the extracted image data of an arbitrary frame.

According to another aspect of the present invention, there is provided a moving image capturing method for capturing a moving image data stream and extracting image data of an arbitrary frame from the data stream. And sequentially storing the sequentially captured image data in a predetermined storage area, generating a display signal for displaying an image of a frame based on the image data, sequentially displaying frames based on the display signal, and displaying the display data. When an instruction to take out the given frame is given, the head of the area where the image data of the given frame is taken out is searched and the image data of the given frame is retrieved from the predetermined storage area. And outputs a predetermined output signal based on the extracted image data of an arbitrary frame. Moving image capture method characterized by comprising the step of generating and outputting, is provided.

In the moving image capturing method of the above-described procedure, a moving image data stream is sequentially input from the outside, and the image data of the frames constituting the input moving image data stream is sequentially stored in a predetermined storage area. A display signal for displaying a frame image based on the data is generated, and the frames are sequentially displayed to express a moving image. When the user instructs to take out an arbitrary frame based on the display, the image data of the selected frame is extracted by searching the head of the storage area where the image data of the frame instructed to be taken out is stored, and the extracted image data Generates a predetermined output signal and outputs it.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a moving image capturing device according to an embodiment of the present invention. The moving image data stream input to the moving image capturing device 100 is a DV stream transmitted from the digital video camera 200, and is configured by image data in units of one still image frame.

A moving image capturing apparatus 100 according to the present invention.
Are image data capture means 110 for inputting a DV stream, image data storage means 120 for temporarily storing the captured DV image data, image data control means 130 for controlling the flow of DV image data, and operation input for inputting user instructions. Means 140, a display signal generating means 150 for generating a display signal based on the DV image data, and an output signal generating means 160 for generating a print image data signal based on the DV image data. Further, the moving image capturing apparatus 100 is connected to a digital video camera 200 for transmitting a DV stream, a monitor 300 for displaying an image based on a display signal, and a printer 500 for printing an image based on a print image data signal. I have.

The image data take-in means 110 is an IEEE
The DV stream of the digital video camera 200 connected via the E1394 communication path is fetched, and the input DV stream is sent to the display signal generation unit 160 and the image data storage unit 120 according to the image data control unit 130.

The image data storage means 120 is a buffer for sequentially storing DV streams. It has a memory area (hereinafter referred to as a buffer) capable of storing a predetermined number of frames of image data, and when the buffer becomes full, overwrites in chronological order from the oldest one. To go. The control of the DV image data transfer to the buffer
Performed by MA (direct memory access).

The image data control means 130 is an ordinary DV
The operation input means 1 controls the flow of image data.
When there is an instruction to take out a frame from 40, processing according to the instruction is performed. Normally, control is performed to sequentially store the DV stream input by the image data capturing unit 110 in the image data storage unit 120, and
The DV stream is sent to the display signal generating means 150,
The generation of a display signal for displaying a moving image of a stream on the monitor 300 is controlled. When a frame extraction instruction is issued, the image data of the frame at the time when the extraction instruction is issued is extracted from the image data storage unit 120, and the extracted frame image data is output to the output signal generation unit 160. Instructs image printing. At this time, a display signal of the extracted frame image is generated by the display signal
To be displayed. Further, if necessary, a plurality of predetermined frame image data stored in the image data storage unit 120 can be extracted and displayed in the same procedure.

The operation input means 140 inputs a user's instruction such as taking out a frame or the like, and the image data control means 13
Output to 0. The display signal generation unit 150 monitors the DV stream according to the image data control unit 130.
A display signal for displaying at 0 is generated and output to the monitor 300.

The output signal generating means 160 processes the extracted frame image data in accordance with the image data control means 130, generates a print image data signal for printing the frame image by the printer 500, Output to 500.

The digital video camera 200 is an IEEE
An output terminal such as a 1394 terminal is provided, and DV image data captured from the output terminal is transmitted to the moving image capturing apparatus 100 in the isochronous transmission mode. In the case of a digital video camera 200 equipped with a liquid crystal display,
DV image data sent from the output terminal can be monitored on a liquid crystal display.

The monitor 300 includes a display signal generating means 150
Display an image based on the display signal generated by. The printer 500 prints an image based on the print image data signal generated by the output signal generation unit 160.

The operation of the moving picture capturing apparatus having such a configuration and the method of capturing the moving picture will be described. The image data capturing means 110 is a digital video camera 2
From 00, a DV stream transmitted in the isochronous transmission mode is fetched. The DV stream is sent as an isochronous packet having a packet size of 488 bytes. The DV packets captured by the image data capturing unit 110 are sequentially stored in the image data storage unit 120. The image data control means 130 makes a setting for the DMA for controlling the memory access of the image data storage means 120, and sets the image data storage means 120 after the setting.
The control of the transfer of the DV packet to the destination is performed by the DMA. Usually D
The V packet is always transmitted from the sender side, and the image data capturing means 110 continuously receives the image data. The image data storage means 120 constantly stores data of a predetermined number of frames, and when the buffer becomes full, buffers the data so as to overwrite the data in chronological order from the oldest one. In addition, the image data control unit 130 sequentially sends out the captured DV image data to the display signal generation unit 150. The display signal generation unit 150 generates a display signal based on the DV image data, and displays the image on the monitor 300. The user refers to the image displayed on the monitor 300 and inputs an instruction to take out a frame desired to be printed into the operation input unit 140. Operation input means 1 for inputting a frame removal instruction
40 transmits the instruction to the image data control means 130. The image data control means 130 searches the head of the image data of the input frame at the time of receiving the extraction instruction, and stores the frame image data in the image data storage means 1.
20 and sends it to the output signal generating means 160.
Further, if necessary, image data of some frames stored in the image data storage unit 120 may be extracted. At this time, if necessary, the image data of the extracted frame is sent to the display signal generating means 150,
The extracted frame is displayed on the monitor 300. When a plurality of frames are displayed, a frame from which an output signal is generated is selected. The output signal generation unit 160 processes the input frame image data, generates a print image data signal, and outputs the print image data signal to the printer 500. The printer 500 prints an image based on the print image data signal.

In the moving image capturing apparatus according to the present invention, the image data before the timing designated by the user can be obtained by simply picking up the transmitted DV packet without performing any control on the apparatus on the sender side. Can be taken out. For this reason, no loss occurs.

Next, an embodiment of the moving image capturing apparatus according to the present invention will be described. FIG. 2 is a hardware configuration diagram of a moving image capturing device according to an embodiment of the present invention. The same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted. The moving image capturing device of this embodiment is a moving image capturing device capable of selecting a desired frame from frames before and after a frame extracting instruction in order to more accurately extract a frame.

A moving image capturing apparatus 100a according to an embodiment of the present invention is connected to a digital video camera 200 by IEEE1394. Also, Engine I /
It is connected to a print engine 501 that performs a printing process via F160a.

An IEEE 1394 port (hereinafter, 1394 port)
Port) 112a and LINK / PHY 111a
Is an image data capturing unit 110 that captures a DV stream from the digital video camera 200 and stores image data in a buffer. 1394 port 112a
Is an input port for receiving a DV stream transmitted from the digital video camera 200, and the input DV stream is transmitted to the LINK / PHY 111a. L
The INK / PHY 111a controls the input DV image data by DMA transfer to a buffer provided in the RAM 120a.

The RAM 120a is image data storage means 120 having a buffer for storing the captured DV image data. The buffer prepares “the number of required image frames + 1” frames in order to guarantee that data for one frame can be acquired even when the DV image data is taken out at an arbitrary timing. The DV image data is a 488-byte isochronous packet, and one packet is transmitted in one isochronous section. Of these, 480 bytes excluding the header are the size of the compressed image data. Data of one frame of image is 250 packets in the case of NTSC system, PA
In the case of the L system, there are 300 packets. Therefore, RAM
Assuming that the required number of frames of an image is 9, the buffer prepared in 120a is:

[0029]

480 × 250 × 10 = 120 KB × 10 = 1.14 MB (1) In the case of the PAL system,

[0030]

480 × 300 × 10 = 144 KB × 10 = 1.37 MB (2)

The CPU 131a and the ROM 132a are image data control means 130 for controlling the entire apparatus and controlling the flow of DV image data. CPU 13
1a controls the flow of image data according to a program stored in the ROM 132a.

The NTSC encoder 150a is a display signal generating means 150 for generating a display signal. The NTSC encoder 150a decodes the packet-compressed image data transmitted from the digital video camera 200, returns the image data to the original display signal, and returns the display signal to the monitor 300. Supply to

The engine I / F 160a is an output signal generating means 160 for generating an output signal of image data to be printed on the print engine 501. The operation of the moving image capturing apparatus having such a configuration and a moving image capturing method will be described. First, a process of capturing a DV stream (hereinafter referred to as capture) will be described. FIG. 3 is a flowchart of a capture process of the moving image capturing device according to the embodiment of the present invention.

When the capture process is started (S1)
0) First, a buffer for image data to be input as a DV stream is secured on the RAM 120a (S1).
1). As the buffer, the size calculated by the expression (1) or (2) is secured. Then, LINK / PHY1
Initialize 11a FIFO (first-in first out)
Set various registers. Next, preparation for DMA transfer is performed (S13), and initialization of DMA, that is, setting of a transfer mode, a transfer size, and the like are performed. Here, the DMA transfer data size is set to "the number of required image frames + 1" of the DV image data. If the required image is 9 frames, the DMA transfer data size is set to 10
DMA setting is performed for frames. Next, data reception by isochronous transmission (hereinafter referred to as ISO) and DMA transfer are performed (S14). LINK / PHY
The data reception and the DMA transfer of 111a are made valid, and the data reception is started. At this time, the received data is LINK
/ DMA transfer from FIFO of PHY111a
The data is transferred to the RAM 120a and buffered. When the buffering is completed up to the last block of the buffer, the data is updated again from the head of the buffer.

The relationship between the components in the operation up to this point will be described. FIG. 4 shows an operation sequence at the time of data reception in the moving image capturing apparatus according to the embodiment of the present invention. The CPU 131a executes L according to the program.
Reading / writing of register of INK / PHY 111a (R /
W) to set the DMA transfer. Then, C
By the PU 131 requesting the DMA transfer,
The LINK / PHY 111a starts the DMA transfer,
The DV image data is transferred to the RAM 120a and buffered.

Returning to FIG. As described above, the received data in the buffer on the RAM 120a is
It is updated sequentially. Here, if the user instructs to pull out an arbitrary frame image, four more
After capturing the DV stream for the frame, RAM1
The capture of the DV stream into 20a is stopped. Of course, the number of frames for capturing the DV stream after the extraction instruction is not limited to four frames, and may be appropriately selected. Here, since 10 frames of image data can be stored, 5 frames before the user's instruction and 4 frames after the user's instruction are captured in the buffer on the RAM 120a. Thereafter, an interrupt for the end of the DMA transfer is input, and the ISO reception is stopped (S15). here,
If the number of transfer bytes is not set in the LINK / PHY 111a, the LINK / PHY 111a
Must be stopped. If a subsequent DV packet has arrived between the interruption of the end of the DMA transfer and the stop of reception, the F of the LINK / PHY 111a is
Since data remains in the IFO, the FI
Clear FO or wait for ISO reception to stop before
The idle transfer of the MA is performed for a while, and extra received data is read out (S16), and the process is normally terminated (S17). FIG. 5 is a timing chart of the idle DMA transfer in the moving image capturing device according to the embodiment of the present invention. I
The DV packet transmitted in the SO section is LINK / PH
DM to buffer by LINK FIFO of Y111a
A is transferred. Last DV packet is LINK FIF
O, and after DMA transfer to the buffer, CP
An interrupt enters U131a. Then, if a subsequent packet arrives before the reception of the ISO is stopped, this packet remains in the LINK FIFO. For this reason, the DMA transfer is made valid, the idle transfer of the DMA is performed, and the reading is performed.

Returning to FIG. If an interrupt does not occur and a timeout occurs, an abort (ABORT) process for stopping ISO reception is performed (S21).
The process ends with an error (S22).

The frame captured in the buffer in the above-described capture processing will be described. FIG.
Shows a capture frame of a buffer in the moving image capturing device according to the embodiment of the present invention.

The buffer can store image data for 10 frames. The storage area for one frame
Block 1 (B1), Block 2 (B2),
..., block 10 (B10). When capture is started, frame 1 is B1 and B2, and frame 2 is B2
And B3, and so on. When the last block B10 is reached by capturing the frame 10, the process returns to the top B1 and the rest of the frame 10 is overwritten. Subsequent frames are sequentially overwritten according to the above procedure. If the user issues a print instruction during the reception of the 31st frame from the start of the capture, the capture is further performed for 4 frames, and then the DV stream capture to the buffer is stopped. As a result,
Five frames of 26, 27, 28, 29 and 30 before the user's instruction and four frames of 31, 32, 33 and 34 after the user's instruction remain in the buffer.

Next, a method of extracting a frame image will be described. FIG. 7 is a timing chart of image data capture in the moving image capturing apparatus according to one embodiment of the present invention.

A moving image capturing apparatus 100a according to the present invention
Then, the LINK / PHY 111a does not detect the head of the frame, and starts receiving and buffering packets from the time when the CPU 131a enables ISO reception for the LINK chip. For this reason, since data is transferred to the buffer from the time when the capture is started, the image data cut out as one block of the DV image data is shifted from one actual frame. For this reason, a buffer of the required number of frames + 1 is prepared, and the head of the frame is detected by software.

First, the structure of a DV frame will be described to explain a method of detecting the head of a frame by software. FIG. 8 is a configuration diagram of a DV frame. DV
A DV frame, which is one frame of the stream, is further divided into n DIF sequences,
Fsequence is further divided into DIF blocks starting from H0.

The DIF block will be described. FIG.
FIG. 3 is a configuration diagram of a DIF block. The first three bytes of the DIF block are identification information (ID data) for identifying the block, and the SCT [2-
0] = 000, and Dseq [3-0] = 0000,
Can be determined to be the head of the frame. ID
By examining the data, the head of the frame can be determined, whereby the head of each frame can be recognized from unaligned frame data, and correct data can be cut out.

The moving image capturing apparatus 100a according to the present invention
Then, the frame image data thus correctly cut out is sent to the NTSC encoder 150a, and the image of each frame is reproduced on the monitor 300. FIG. 10 shows a display screen for continuous capture in the moving image capturing device according to one embodiment of the present invention. When the display image of the frame 31 that has received the user's instruction is the screen 6, the frame 26 before the user's instruction is the screen 1,..., The frame 30 is the screen 5, and the frame 32 after the user's instruction is the screen 7,. , Frame 34 are displayed on the screen 9.
The user selects a desired one from the display of the plurality of frames. The image data of the selected frame is sent to the print engine 501 via the engine I / F 160a.
To be printed.

As described above, the moving image capturing apparatus 100a according to the present invention performs only the process of picking up the transmitted DV packet without controlling the sender apparatus. Therefore, without requiring a special protocol between the data sending side and the receiving side, a desired frame can be extracted and printed if a print command trigger is given by a button or the like. Further, since it is possible to confirm the image data of the frames before and after the takeout instruction, it is possible to more accurately select an image to be printed.

Next, another embodiment of the moving image capturing apparatus according to the present invention will be described. The moving image capturing device according to the other embodiment is a moving image capturing device that can reliably retrieve one frame of image data even when a frame retrieval is instructed at an arbitrary timing. The hardware configuration is the same as that of the moving image capturing device described above, but the size of the buffer provided in the RAM 120a is different. Here, as for the size of the buffer, a buffer for two frames is prepared in the RAM 120a in order to guarantee that data for one frame can be acquired even if image data of a frame is taken out at an arbitrary timing. The buffer size is the same as in the equations (1) and (2) in the case of the NTSC system.

[0047]

480 × 250 × 2 = 120 KB × 2 = 240 KB (3) In the case of the PAL system,

[0048]

480 × 300 × 2 = 144 KB × 2 = 288 KB (4)

The operation of the moving picture fetching device having such a configuration will be described. Capture DV stream, RA
The data is sequentially stored in a buffer provided on M120a. In this case, since a buffer for two frames is secured, even if the image data cut as one block of DV image data is shifted from the actual one frame, the image data for one frame is stored. Have been. After receiving data for two frames, the process returns to the top of the buffer and overwrites the captured image data.
Here, when the user instructs to extract an arbitrary frame image, the DV stream for the frame is fetched, and then the fetching of the DV stream into the RAM 120a is stopped. Subsequently, the ID data of the DIF block of the DV frame is checked, and the head of the frame is searched. When the head of the frame is searched, correct image data for one frame is cut out therefrom, sent to the printer engine 501 via the engine I / F 160a, and printed.
The setting of the DMA and the reading of extra data are the same as those of the moving image capturing apparatus 100a described above, and thus the description thereof is omitted.

As described above, a moving image capturing device according to another embodiment of the present invention is a moving image capturing device 100a.
In the same manner as described above, a desired frame can be extracted and printed if no special protocol is required between the data sending side and the receiving side and a print command trigger is given by a button or the like. Furthermore, it is possible to extract a frame of DV image data only by preparing a buffer memory for a minimum of two frames. In this case, the moving image capturing device does not display the image of the cut-out frame and prompts the user to select the image. For this reason, if the digital video camera is provided with a display means such as a liquid crystal display, it is not necessary to mount a display signal generating means on the moving image capturing device.

The above processing functions can be realized by a computer. In this case, the processing contents of the functions that the moving image capturing apparatus should have are described in a program recorded on a computer-readable recording medium. Then, by executing this program on a computer, the above processing is realized on the computer. As a computer-readable recording medium,
There are a magnetic recording device and a semiconductor memory. When distributing to the market, CD-ROM (Compact Disc Read Only Me
mory) or a floppy (registered trademark) disk or the like to store and distribute the program, or store the program in a storage device of a computer connected via a network, and transfer the program to another computer via the network. You can also. When running on a computer,
The program is stored in a hard disk device or the like in the computer, loaded into the main memory and executed.

[0052]

As described above, according to the present invention, an arbitrary moving image data stream is captured, a frame image based on the image data is displayed, and the image data is temporarily stored in the storage means. When the user instructs to take out an arbitrary frame, the image data of the frame instructed to be taken out is extracted from the storage means, and a predetermined output signal based on the image data is generated and output.

As described above, the captured image data is temporarily stored, so that when an instruction to extract a desired frame is issued, the image data can be accurately extracted without any loss.

In another moving image capturing apparatus of the present invention, an arbitrary moving image data stream is captured, and the image data is temporarily stored in the storage means. When the user instructs to take out an arbitrary frame, the image data of the frame instructed to be taken out is extracted from the storage means, and a predetermined output signal based on the image data is generated and output.

As described above, since the captured image data is temporarily stored, when an instruction to extract a desired frame is issued, the image data can be accurately extracted without any loss.

In the moving image capturing method of the present invention,
The moving image data stream is sequentially input, the image data is sequentially stored in a predetermined storage area, and a display signal is generated for display. When the user selects an arbitrary image frame, the image data of this frame is extracted from the storage area, and a predetermined output signal is generated and output.

As described above, since the captured image data is temporarily stored, when an instruction to extract a desired frame is issued, the image data can be accurately extracted without any loss.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a moving image capturing device according to an embodiment of the present invention.

FIG. 2 is a hardware configuration diagram of a moving image capturing device according to an embodiment of the present invention.

FIG. 3 is a flowchart of a capture process of the moving image capturing device according to the embodiment of the present invention;

FIG. 4 is an operation sequence at the time of data reception in the moving image capturing device according to the embodiment of the present invention;

FIG. 5 is a timing chart of DMA idle transfer in the moving image capturing apparatus according to the embodiment of the present invention;

FIG. 6 shows a capture frame of a buffer in the moving image capturing device according to one embodiment of the present invention.

FIG. 7 is a timing chart of image data capture in the moving image capturing device according to an embodiment of the present invention.

FIG. 8 is a configuration diagram of a DV frame.

FIG. 9 is a configuration diagram of a DIF block.

FIG. 10 is a display screen of a continuous capture in a moving image capturing device according to an embodiment of the present invention.

FIG. 11 is a configuration diagram of a moving image processing system including a moving image capturing device.

FIG. 12 is a flowchart of a processing procedure of a moving image capturing device having a printing unit.

[Explanation of symbols]

Reference Signs List 100: moving image capturing device, 110: image data capturing means, 120: image data storage means, 130: image data control means, 140: operation input means, 150: display signal generating means, 160: output signal generating means, 200: Digital video camera (DV), 300 monitor, 500
… Printer

Continued on the front page F term (reference) 5C052 AA17 FA01 FA03 FA04 FA06 FA09 FB01 FE01 GA01 GA03 GA05 GA07 GA09 GC05 GE04 GE05 GF00

Claims (11)

[Claims] 1. A moving image capturing apparatus for capturing a moving image data stream and extracting image data of an arbitrary frame from the data stream, comprising: image data capturing means for sequentially capturing image data of frames constituting the moving image data stream; Image data storage means for temporarily storing image data sequentially captured as the moving image data stream; display signal generation means for generating a display signal for displaying an image of a frame based on the image data; and taking out the arbitrary frame Operation data input means for controlling the flow of the image data, and extracting image data of an arbitrary frame for which the extraction is instructed from the image data storage means. Image data of any frame An output signal generating means for generating a predetermined output signal based on the output signal. 2. The image processing apparatus according to claim 1, wherein the output signal generating unit performs image processing on the image data to generate a print image data signal to be output to a printer engine that prints the image of the arbitrary frame. Item 7. The moving image capturing device according to Item 1. 3. The image data storage means is a ring buffer for storing the image data again from the beginning of the storage area when the storage of the image data is completed up to the last block of the storage area of the image data storage means. The moving image capturing device according to claim 1, wherein: 4. The moving image according to claim 1, wherein said image data storage means has a storage area capable of storing image data for a predetermined number of frames + 1 to be stored and for frames. Capture device. 5. The moving image capturing apparatus according to claim 1, wherein said image data storing means has a storage area capable of storing two frames of image data sequentially captured as said moving image data stream. apparatus. 6. The image data control unit extracts a predetermined number of image data including image data of an arbitrary frame instructed to be taken out from the image data storage unit, and the display signal generation unit A display signal is generated based on image data of a predetermined number of frames extracted by the image data control means, and the operation input means further includes a desired frame from a predetermined number of frames displayed based on the display signal. The moving image capturing apparatus according to claim 1, wherein an operation of selecting is input. 7. The image data control means further comprises: a predetermined number of frames input from the image data capturing means after a point in time when an instruction to take out the arbitrary frame is input from the operation input means. After storing the data in the image data storage means, extracting image data of a predetermined frame which is temporally before and after the time point when the instruction to take out the arbitrary frame is input from the image data storage means is extracted. The moving image capturing apparatus according to claim 6, wherein 8. The image data storage means stores a predetermined number of image data of a frame input at a time before the input time of the arbitrary frame extraction instruction, and inputs the arbitrary frame extraction instruction. 8. The moving image capturing apparatus according to claim 7, further comprising a storage area for storing a predetermined number of image data to be input at a time after the time point. 9. A moving image capturing apparatus for capturing a moving image data stream and extracting image data of an arbitrary frame from the data stream, comprising: image data capturing means for sequentially capturing image data of frames constituting the moving image data stream; An image data storage unit for temporarily storing image data sequentially captured as the moving image data stream; an operation input unit for instructing extraction of the arbitrary frame; and controlling the flow of the image data, wherein the extraction is instructed. Image data control means for extracting the image data of the given arbitrary frame from the image data storage means; output signal generation means for generating a predetermined output signal based on the image data of the arbitrary frame instructed to be taken out; Moving image capturing characterized by having Device. 10. A method for capturing a moving image data stream,
In the moving image capturing method for extracting image data of an arbitrary frame from the data stream, sequentially capturing image data of frames forming the moving image data stream, sequentially storing the sequentially captured image data in a predetermined storage area, A display signal for displaying an image of a frame based on the image data is generated, and frames based on the display signal are sequentially displayed. When the removal of any displayed frame is instructed, the removal is instructed. Searching for the top of the area where the image data of the frame is stored, extracting the image data of the arbitrary frame from the predetermined storage area, and outputting a predetermined output signal based on the extracted image data of the arbitrary frame. A moving image capturing method, comprising the steps of generating and outputting a moving image. 11. The moving image capturing method further comprises:
When taking out of the displayed arbitrary frame is instructed, the image data of the frame to be input after the point in time at which the taking out of the arbitrary frame is instructed is taken in, stored in the predetermined storage area, and the predetermined storage is performed. Time series from a frame input before the point in time at which the extraction of the arbitrary frame stored in the area is instructed to a frame input after a point in time when the extraction of the arbitrary frame is instructed Extracting the image data of the frame from the storage area, generating a display signal for displaying an image based on the extracted image data of the time-series frame, and simultaneously displaying the time-series frame, When an instruction to select an arbitrary image from the frame images is issued, a predetermined image based on the image data of the frame instructed to be taken out is given. Moving image capture method of claim 10, characterized in that it comprises the steps of generating and outputting a force signal.