JP3401111B2 - Image recording and display system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display on a vehicle-mounted instrument panel or the like, and more particularly to a record carrier on which data to be displayed is recorded, and the data to be displayed is prepared and previously recorded on the record carrier. The present invention relates to an image recording device for storing the same, an image display device for reproducing and displaying data recorded on a record carrier, and an image recording and display system for all of them.

[0002]

2. Description of the Related Art As a conventional instrument panel for a vehicle, which is an alternative to a mechanical instrument panel, for example, a system using a segment display device having no moving parts, or display data created each time in the instrument, a CRT display device (hereinafter , CRT).

Conventionally, in such an instrument panel, a sensor, a computer for forming an image based on data from the sensor,
And a CRT or the like for displaying the created image. According to these configurations, it is necessary to create and update the image to be displayed by the computer built in the instrument panel in real time. More specifically, since the computer of the instrument panel itself performs graphic drawing processing based on a design imitating an indicating instrument such as a speedometer, the design is complicated and data from the sensor becomes large and steep. In case of change,
There was a failure in real-time drawing processing, some drawings were missing, and there were problems with display responsiveness. Also,
A great deal of effort was also required to create a computer program for drawing a realistic indicating instrument.

As an example of a method of displaying while creating display data in such an instrument panel, there are, for example, Japanese Patent Publication No. 5-66965 and Japanese Patent Application Laid-Open No. 2-256528.

[0005]

Since the image display on the conventional vehicle-mounted instrument panel and the like has been performed as described above, C
The software processing for drawing by the PU becomes a very heavy load, and in order to draw a highly visible and realistic drawing image and a high-speed movement of the pointer, a high-performance expensive CPU or a dedicated CPU is used. Not only is a drawing processor (hardware) required, but since the drawing is performed sequentially, there is a problem that the movement is not smooth and awkward. Also, in order to obtain a realistic drawing image,
It takes a lot of time to design drawing data and drawing programs to realize the design, and it is not possible to prepare many kinds of designs easily. Moreover, due to the limitation of the number of colors of the drawing color palette. , The number of simultaneous colors is limited,
Furthermore, the slanted lines and the like cause a jagged feeling peculiar to graphic drawing, which is a factor that impairs the reality.

[0006] The invention has been made to solve the above problems, the indicating instrument image data, while reducing the trouble of design, image recording can be performed display for an accurate indication instrument in real The purpose is to make the display system inexpensive.

[0007]

An image recording / displaying system according to the present invention comprises an instantaneous value signal generating means for generating an instantaneous value signal encoding a variable amount of instantaneous values, and an instantaneous value indicated by the instantaneous value signal. A still image signal generating means for generating a still image signal to be visually displayed, a recording means for recording a plurality of sets of the instantaneous value signal and the still image signal on a predetermined record carrier, and a variable means. Variable amount detecting means for detecting and encoding the amount, and still image reading means for reading from the record carrier a still image signal paired with an instantaneous value signal corresponding to the variable amount detected by the variable amount detecting means, And an image display unit for reproducing and displaying a still image from the read still image signal.

Further, engagement Ru images recorded display system in this invention, a set of records of the instantaneous value signal to the record carrier and the still image signal is obtained by the performed with increasing order of the instantaneous value signal.

Further, engagement Ru images recorded display system in this invention, from captured photographed image of the image pickup means has a function of generating a still image signal for visually displaying the actual indication of the indicating instrument It has a still image signal generating means.

Further, engagement Ru images recorded display system in this invention, have a still image signal generating means having a function of generating a plurality of still image signals, each different indicating the instantaneous value of the variable amount of computer graphics It was made.

Further, engagement Ru images recorded display system in this invention include those which overlap the instantaneous value signal instantaneous value signal generating means generates, Until at least one still image signal and the instantaneous value signal Is provided with a recording means having a function of deleting each set.

Further, engagement Ru images recorded display system in this invention has an image information compressing means for compressing the still image signal recorded on the record carrier by a predetermined conversion method.

Further, engagement Ru images recorded display system in this invention, the record carrier, together with the recording plural sets to the instantaneous value signal and still image signal into a set in a predetermined area, apart from the region, the geostationary It has an area for collectively recording management information of image signals.

Further, engagement Ru images recorded display system in this invention, the instantaneous value indicated by the still image signal used for display,
A still image reading means having a function of sequentially reading still image signals in the order recorded on the record carrier and sending them to the image display means even if the variable amount is different from the variable amount detected by the variable amount detecting means. Is.

Further, engagement Ru images recorded display system in this invention, we used to view and detected variable amount variable amount detecting means
The difference from the instantaneous value indicated by the still image signal is within the specified range
If you deviate from the point, try to catch up with the instruction delay
In addition, the management information is retrieved by the random access method , a still image signal based on it is output , and tracking is performed within a predetermined range.
In this case, a still image reading means having a function of synchronously outputting a still image signal paired with the variable instantaneous value signal is provided.

Further, engagement Ru images recorded display system in this invention, read Te cowpea the still image reading means from the record carrier, a still image signal compressed by a predetermined conversion method, inverse of the conversion method It has an image information expansion means for expanding by conversion and sending it to the image display means.

The image recording / displaying system according to the present invention
The system includes a still image signal generating means for generating a still image signal that visually displays a variable amount of instantaneous values, and records the still image signals collectively in a predetermined area of the record carrier. A recording means for collectively recording the management information of the still image signal is provided in a separately set area.

The image display / display system according to the present invention
The variable amount detecting means for detecting and encoding the variable amount, the still image signal visually displaying the instantaneous value of the variable amount, and the management information are collectively recorded in the separately set areas. Still image reading means for reading the corresponding still image signal based on the management information corresponding to the instantaneous value of the variable amount detected by the variable amount detecting means as a key from the recorded carrier, and the read still image signal And an image display means for reproducing and displaying a still image.

[0019]

In the image recording / displaying system according to the present invention, the instantaneous value signal generated by the instantaneous value signal generating means by encoding the variable amount of instantaneous value and the instantaneous value indicated by the instantaneous value signal generated by the still image signal generating means are shown. A set of still image signals that are visually displayed, and a plurality of sets of them by the recording means,
While recording on a predetermined record carrier, the still image reading means retrieves the instantaneous value signal recorded on the record carrier based on the variable amount detected by the variable amount detecting means for detecting and encoding the variable amount. By reading the still image signal that is paired with the instantaneous value signal and reproducing / displaying the still image from the still image signal on the image display means, the cost of the record carrier is reduced, and the recording / reproducing operation is performed. To reduce the processing time.

Further, the record carrier in this invention, a set of instantaneous value signals and still image signals corresponding thereto, by recording with increasing order of the instantaneous value signals, images recorded that easy to record carrier Realize a record display system.

Further, the still image signal generating means in the present invention changes the instruction value of the actual indicating instrument, photographs the changed state by the image pickup means, and visually displays the instruction value from the photographed image. by generating a still image signal, and enables the generation of a plurality of still images with a simple structure, realizing high have the image recording system of freedom of design.

Further , the still image signal generating means in the present invention actually generates a plurality of still image signals, each of which shows a variable instantaneous value, by computer graphics by the CG image generating means. also image not make realizing creatable images record display system.

In the recording means of the present invention, the instantaneous value signals generated by the instantaneous value signal generating means are duplicated, and at least one of them is a set of the instantaneous value signal and the still image signal. by deleting, still images becomes minimum instruction video frame is realized easily and reliably obtained that images recorded display system.

Further, the image information compression device in this invention, by recording on the record carrier is compressed by a predetermined conversion method the still image signal, and enables the use of a small record carrier capacity, image recording system Reduce the price of.

In the record carrier according to the present invention, a plurality of sets of instantaneous value signals and still image signals are collectively recorded in an area set separately from the area for recording the management information of the still image signals. more accurate recording position to realize the image recording system that can <br/> identification.

Further , in the still image reading means of the present invention, even if the instantaneous value indicated by the still image signal used for display is different from the variable amount detected by the variable amount detecting means, the order of recording on the record carrier is performed. until substantially equal to the variable amount as, by transferring to the image display means reads the still image signal one after another, to realize that can display smooth motion <br/> image recording system.

Further, the still image reading device in this invention is used to display the detected variable amount variable amount detecting means
The difference from the instantaneous value indicated by the still image signal is within the specified range.
If you deviate, be sure to skip the instructions and catch up
The management information is searched by the random access method , a still image signal based on it is output, and it follows in a predetermined range.
The By output synchronizing the still picture signal that is instantly ground signal and the set of variable amount when normally performs smooth playback, row planted image reproduction that emphasizes accuracy skip the image when necessary Realize a record display system.

Further , in the image information expanding means of the present invention, when the still image signal compressed by the predetermined conversion method and recorded on the record carrier is read by the still image reading means, the still image signal is converted into the above conversion method. by transferring the image display unit and decompressed by the inverse transform of making it possible to use a small record carrier capacity, reducing the price of the images recorded display system.

Further , the recording means in the present invention collectively records still image signals, which visually display the variable amount of instantaneous values generated by the still image signal generating means, in a predetermined area of the record carrier. By collectively recording the management information of the still image signal in an area set separately from the management information, an image recording / display system that can easily and surely obtain image data suitable for random access on the image display device side is provided. To be realized.

Further, the image display device in this invention,
Using the instantaneous value of the variable amount detected by the variable amount detecting means for detecting and encoding the variable amount as a key, a still image signal visually displaying the instantaneous value of the variable amount and its management information are separately provided. By reproducing and displaying the still image from the still image signal read by the still image reading means based on the management information corresponding to the record carrier collectively recorded in the set area, the instantaneous value becomes steep. We will realize an image recording and display system that can quickly follow changes.

[0031]

EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. Figure 1
1 is a block diagram showing a functional configuration of an in-vehicle image recording apparatus that is Embodiment 1 of the present invention. In the figure, reference numeral 1 is a still image signal generating means for generating and outputting a still image signal of an arbitrary indicating instrument, and 2 is for generating an instantaneous value signal representing the still image output from the still image signal generating means 1. It is an instantaneous value signal generating means for outputting as an output. Reference numeral 3 indicates each still image of the indicating instrument obtained from the still image signal generating means 1 and each instantaneous value obtained from the instantaneous value signal generating means 2, for example, "1 km / h", "as shown in FIG. 2km / h ”, ...
While associating the indicated value information of “, 100 km / h” with the indicating instrument image by each frame image of “frame image # 1”, “frame image # 2”, ..., “Frame image #n” It is a recording means for recording on the next record carrier 4 as the indicating instrument video data. Reference numeral 4 is a record carrier on which the recording data of the indicating instrument is recorded by the recording means 3.

Further, FIG. 3 is a block diagram showing a specific device structure of the vehicle image recording apparatus shown in FIG. In the figure, 10 is a computer including a CPU, a memory, a CRT, a keyboard, and the like, and 11 is a computer-dedicated bus connected to the computer 10. Reference numeral 12 is a monitor connected to the computer 10 via the bus 11, and 13 is a hard disk. A CD-R printer 14 is also connected to the computer 10 via the bus 11 and transfers data to a CD-ROM used as the record carrier 4.

Reference numeral 15 is a signal generator (SG) capable of sweeping the entire allowable instruction range as shown in FIG. 4 along the characteristic line 15a. The instantaneous value signal generating means 2 shown in FIG. It is realized by the device 15. Reference numeral 16 is an actual indicating instrument such as a speedometer, which is driven by the SG signal generated by the signal generator 15 so that the pointer can freely move. Reference numeral 17 denotes a video camera that captures an image of the actual movement of the indicating instrument 16 and outputs a still image signal based on a real image of the actual indicating instrument 16. The still image signal generating means 1 shown in FIG. This is realized by this video camera 17. A video cap I / F 18 is connected to the bus 11 and interfaces (I / F) the still image signal output from the video camera 17 to the computer 10. Reference numeral 19 is an A / D conversion I / F which is connected to the bus 11 and A / D converts the SG signal, which is the instruction value information output from the signal generator 15 every moment, to I / F the computer 10. Is connected to the bus 11 and SG is sent to the signal generator 15 according to an instruction from the computer 10.
A signal generator I / F that outputs a trigger signal for starting the generation of a signal.

[0034] Next, the operation will be described. Here, FIG.
Is a flow chart showing a flow of operations of the vehicle-mounted image recording apparatus. First, in step ST100, a file on the hard disk 13 is opened to store the file. Next, in step ST101, the signal generator I / F 20 outputs a trigger signal to the signal generator 15 to cause the signal generator 15 to start generating the SG signal.
The sweep signal indicated by the characteristic line 15a is supplied to the indicating instrument 16 and the A / D conversion I / F 19. Then step S
In step T102, the actual image of the actual indicating instrument 16 is captured by the video camera 17, and the captured image signal is captured by the computer 10 for one frame as frame image data via the video capture I / F 18. Next, in step ST103, the SG signal of the signal generator 15 is taken into the computer 10 via the A / D conversion I / F 19,
The computer 10 sets it to the indicating instrument 16 corresponding to the level.
Convert to the indicated value of. This is the instruction value information corresponding to the frame video data captured in step ST102.

The frame video data and instruction value information fetched in steps ST102 and ST103 are associated with each other in step ST104 to be filed and recorded on the hard disk 13. In addition,
The format of the video data file in the first embodiment is as shown in FIG.
.., 22n corresponding to the frame are sequentially recorded so as to be synchronized with each other. Reference numeral 23 is a memory area in the hard disk 13 in which the video data file is stored.

[0036] Then in step ST105, the instruction value information makes a determination of whether or not reached the full-scale value of the indicating instrument 15 branches to step ST102 otherwise, the repeated processing of steps ST102~ST105 Meanwhile, a series of video data files are sequentially formed. When the full scale is reached, the video data file has been completed, so step ST10.
Branch to 6. This step ST106 is a process for converting the completed video data file into a convenient record carrier 4 on the image display device side, and in this embodiment 1, the CD-R is used.
The data in the hard disk 13 is transferred to the CD-ROM which is the record carrier 4 by the printer 14. Finally, in step ST107, the file on the hard disk 13 is closed and the series of processes is completed.

Although the CD-ROM is illustrated as the recording carrier 4 in the first embodiment, other carriers such as a digital VTR, an optical disk, an IC card, and a semiconductor memory may be used.

[0038] Thus, by generating an actual still image signal by capturing an indicating instrument 16 in the video camera 14, an equally smooth and realistic indicating instrument image data movement and real, easily and reliably create Can also,
Since the instruction value information is sequentially recorded in synchronization with each frame image, the image data can be created in real time. Further, according to the video data format created by such a method, the instruction value information is recorded in synchronization for each video frame, so when the video data is reproduced and displayed on the vehicle-mounted image display device side, It is possible to accurately and smoothly express the information to be instructed as an indicating instrument by a simple synchronization control.

[0039] Example 2. Next, a second embodiment of the present invention will be described with reference to the drawings. Figure 7
Is a block diagram showing a device configuration of an in-vehicle image recording device according to another embodiment of the present invention. Corresponding parts are designated by the same reference numerals as those in FIG. In the figure, reference numeral 30 denotes a CG image generating means capable of generating a CG image by drawing a virtual indicating instrument model by computer graphics (CG) to represent an indicating instrument. This Example 2
In the above, the still image signal generating means 1 is realized by the CG image generating means 30, and as the CG image generating means 30, for example, a three-dimensional CG animation creating tool is assumed. The CG image generation means 30
A three-dimensional model of a virtual indicating instrument, a movement model of its pointer, and the like (in the case of a speedometer, moving a pointer from 0 km / h to 100 km / h, etc.) are prepared. Reference numeral 31 is a communication output I / F for instructing a series of drawing processing start commands and the like to the CG image generating means 30 by communication, and 32 is a state in which the CG image generating means 30 is executing a series of drawing processing. It is a communication input I / F for obtaining status information by communication. Also, 33 is C
A CG video signal sent from the G video generation means 30 to the video capture I / F 18, and 34 is a communication output I / F 3
A command sent from 1 to the CG image generation means 30;
Is status information sent from the CG image generation means 30 to the communication input I / F 32.

[0040] Next, the operation will be described. Here, FIG.
Is a flowchart showing the flow of the operation of this vehicle-mounted image recording device, and steps ST100 and ST10 thereof.
4 to ST107 are the same processes as those in FIG. 5, and only the processes of steps ST201 to ST205 are different, and therefore they will be mainly described below. First, when the opening of the file in step ST100 is completed and the process proceeds to step ST201, a drawing start command 34 is issued from the communication output I / F 31 in order to start a series of drawing operations of the CG image generating means 30, and then step ST202. Then, the status information 35 of the drawing processing state of the CG image generating means 30 is input from the communication input I / F 32.

[0041] Next, in step ST 203, of the status obtained in step ST202, and checks the status indicating 1 frame drawing completion, waits until completion returns to step ST202 if incomplete.
On the other hand, if completed, the process branches to step ST204,
The CG video signal 33 of the corresponding frame video is captured by the computer 10 via the video capture I / F 18 as frame video data. Next in step ST20
5, the instruction and information of the pointer drawn in the corresponding frame are extracted from the status obtained in step ST202, and the process proceeds to step ST104 and subsequent steps.

[0042] Thus, even in the actual instruction instrument creates difficult design, by generating a still image signal by using a CG image generating unit 30, a virtual reality computer graphics instead of real It is possible to easily and surely create the indicating instrument image data using the three-dimensional indicating instrument image.

Further , since the real-time drawing of computer graphics is conventionally performed on the vehicle-mounted image display device side, the CG processing on the vehicle-mounted image display device side satisfies the simultaneous color development number, the drawing quality, the real-time property and the like. In order to achieve this, there is a problem that the size of the on-vehicle image display device side becomes large. However, by adopting the above configuration, CG drawing only needs to be provided on the on-vehicle image recording device side. Then, by reproducing the drawn video data with a simple device, it is possible to reproduce and display a real image in real time.

Further , according to the above-mentioned video data format, since the instruction value information is recorded in synchronization with each video frame, when the video data is reproduced and displayed on the in-vehicle image display device side, an instruction as an indicating instrument is given. Accurate and smooth information can be expressed by simple synchronization control.

[0045] Example 3. Next, a third embodiment of the present invention will be described with reference to the drawings. Figure 9
Is a flow chart showing the flow of the operation of the vehicle-mounted image recording apparatus according to still another embodiment of the present invention, and the apparatus configuration is the same as that of the first embodiment shown in FIG. 10 is a format diagram showing a video data file in the third embodiment, and FIG. 11 is a format diagram showing the management information recording area in more detail. According to FIG. 10 and FIG. 11, the video data file has a format configuration in which a frame information recording area and a management information recording area for recording management information are added together at a predetermined location in a different area. ing.

Next will be described the operation in accordance with the flowchart of FIG. 9. Incidentally, in this FIG. 9, step ST301
To ST302 and steps ST303 to ST305 are different, and the other steps are the same as those in FIG. 5, and therefore the following description will be focused on them. First, when step ST100 ends and the process proceeds to step ST301, the management information recording area shown in FIG. 10 is secured in the hard disk 13, and the process proceeds to step ST302 to initialize the management information index IX to "0". To do. Hereinafter, step ST10
The processes of 1 to ST103 are executed as in the case of the first embodiment, and the process proceeds to step ST303.

In step ST303, step ST10
The frame video data captured in 2 is sequentially added to the end of the frame video recording area and recorded so as to be combined.
Next, in step ST304, the instruction value information IND corresponding to the frame video captured in step ST103
And the address ADR in which the frame information is recorded in step ST303 are paired and written in the management information recording area indicated by the index IX (the detailed format is shown in FIG. 11). That is, IND
Write (IX) = IND and ADR (IX) = ADR. Next, in step ST305, the management information index IX is incremented in preparation for the storage of the next management information, and the process proceeds to step ST105 and subsequent steps.

Since the management information recording area is added to the video data format created by such a method, it is possible to easily and surely obtain video data suitable for random access on the in-vehicle image display device side. You can Further, the present invention can be applied to a record carrier in which it is difficult to record the instruction value information in synchronization with the frame image in the frame image recording area.

[0049] Example 4. Next, a fourth embodiment of the present invention will be described with reference to the drawings. Figure 1
2 is a flowchart showing the operation flow of the vehicle-mounted image recording apparatus according to still another embodiment of the present invention, and the apparatus configuration is the same as that of the first embodiment shown in FIG. Also,
FIG. 13 is a format diagram showing a video data file in the fourth embodiment. The management information recording area of the third embodiment shown in FIG. 11 is added to the video data file of the frame structure of the first embodiment shown in FIG. It has a formatted format. Here, the operation will be described with reference to FIG.
5 is the same processing as those in FIG. 5 or FIG. 9, and the third embodiment of the flowchart shown in FIG.
Step ST303 in the flowchart of FIG.
The flowchart is different from that of the first embodiment in that it is replaced by step ST104 in the flowchart, and operates in the same manner as in the first and third embodiments. Therefore, the description thereof is omitted.

[0050] Incidentally, according to the video data format created by such a method, since the instruction value information is recorded in synchronization with each video frame, the case of reproducing the video data in-vehicle image display apparatus In, the information expression to be instructed as an indicating instrument can be smoothly performed by the synchronous control, and since the management information recording area is added, the frame image is directly accessed at random,
It is possible to play back the required video at high speed. That is, according to the above method, it is possible to easily and surely obtain the video data suitable for the reproduction by arbitrarily switching the reproduction method that emphasizes smoothness or the reproduction method that emphasizes high speed.

[0051] Example 5. Next, a fifth embodiment of the present invention will be described with reference to the drawings. Figure 1
4 is a flow chart showing the flow of the operation of the vehicle-mounted image recording apparatus according to still another embodiment of the present invention, the apparatus configuration of which is the same as that of the first embodiment shown in FIG. Also,
FIG. 15 is an explanatory view showing the format conversion of the video data file in the fifth embodiment.
A video data file b shown in FIG. 15B has a format in which a plurality of identical indication value information (marked with * in the figure) is recorded, such as the video data file a shown in FIG. 15A.
It is configured so that it can be converted into a format in which duplicate information such as is deleted.

Next will be described the operation according to the flowchart of FIG. 14. First, in step ST400, the file a of the target video data file is opened, and in step ST401, the file b is opened for the video data in which the duplicate information is newly deleted. Next, in steps ST402 and ST403, the files a
And the index counters IX_a and IX_b for accessing the respective arrays of the file b are cleared to “0”. After that, in step ST404, the file a extracted with the current value of the index counter IX_a.
Information (instruction value information and corresponding frame video)
Is transferred to the area indicated by the value of the index counter IX_b of the file b. Next, in step ST405, the index counter IX_a is incremented,
Then, in step ST406, the index counter IX
_B is incremented.

[0053] Next, the process proceeds to step ST407, and check that the search of the file a has been completed up to the end on whether or not the index counter IX_a ≧ n, performs a series of repeated processing branches to step ST408 does not exceed If so, steps ST404 to ST4
After the repetition process of 08, the process branches to step ST409. Further, in step ST408, it is checked whether or not the data overlapping with the instruction value information extracted by the current value of the index counter IX_a has already been transferred to the file b, and if not transferred, the process branches to step ST404 and transferred. If so, the process branches to step ST406. When these repetitive processes are completed, the file b with the duplicate information deleted is created. Next, in step ST409, the contents of the file b are transferred to the record carrier 4 as in step ST106 of FIG. Then, step ST4
The file a is closed at 10 and the file b is closed at step ST411, and a series of processing is ended.

[0054] by removing duplicate information in this way, it is possible to obtain information display data becomes minimum readings video frame easily and reliably. Further, the information display data obtained in this way becomes the information display data suitable for reproducing the quantized indicating value image such that the pointer is step-displayed in the unit of reading resolution.

[0055] Example 6. Next, a sixth embodiment of the present invention will be described with reference to the drawings. Figure 1
6 is a block diagram showing a device configuration of an in-vehicle image recording device according to still another embodiment of the present invention.
The same reference numerals are given and their explanations are omitted. In the figure,
Reference numeral 40 denotes an image information compression means using orthogonal transformation. As the orthogonal transformation, for example, a two-dimensional discrete cosine transform (Discrete Cosine T) represented by the following equation (1) is used.
The image information is compressed using ran-sform (DCT).

[0056]

[Equation 1]

[0057] Here, DCT is an orthogonal transformation where the cosine function and the basis functions, those used for spatial information compression can convert an image signal into coefficients of frequency components. Generally, an image signal has a large correlation, which is particularly remarkable in the image of the indicating instrument as in the present invention. When DCT, the coefficient of the direct current component becomes a large value, and the coefficient of the high frequency component in the horizontal and vertical directions is very small. Will be things. By utilizing this property, a bit length is assigned to the DCT coefficient while considering the visual characteristic, that is, a sufficient bit length is assigned to the DC coefficient and a small bit length is assigned to the high frequency component coefficient. By allocating, it is possible to significantly compress data while suppressing deterioration of image quality.

Although the other structure is almost the same as that of the first embodiment, according to the sixth embodiment, the data of the video data file is compressed by an image like the file A shown in FIG. 17A. Since the data of the frame video before being processed is filed in the DCT coefficient representation of the frame video as in the file B shown in FIG. 7B, that is, in the form of spatial information compression, the data of the entire file is significantly large. It is configured to be compressed.

[0059] Next, the operation will be described. Here, FIG.
8 is a flow chart showing the flow of the operation of this vehicle-mounted image recording apparatus. First, in step ST500,
The file A before image information compression is opened, and subsequently, a new file for storing the result of compression in step ST501 is opened as the file B.
Next, in step ST502, one frame of frame image data is extracted from the file A, and then step ST
Move to 503. In step ST503, step ST5
The frame information extracted in 02 is divided into a plurality of blocks each having a unit of vertical 8 × horizontal 8 pixels, and an 8 × 8 two-dimensional DCT operation is executed for each block for each entire frame. The obtained DCT coefficient is assigned a sufficient bit length for the DC coefficient, and the AC coefficient is assigned such that the low frequency component side has a large bit length and the high frequency component side has a small bit length.

[0060] In a subsequent step ST 504, the DCT coefficients obtained in step ST503 file B
Write in. Next, in step ST505, the instruction value information corresponding to the frame image is extracted from the file A, and in step ST506, it is extracted in step ST.
File B corresponding to the DCT coefficient written in 504
Write in. Next, in step ST507, it is checked whether or not all the processes for the file A are completed. If not completed, the process returns to step ST502 to repeat the above processes. If completed again, step ST5
The file A is closed at 08, the file B is closed at step ST509, and the series of processes is ended.

In the sixth embodiment, according to the flow chart shown in FIG. 18, the image compression is performed on the frame video once filed, but the first embodiment shown in FIG. 5 and the second embodiment. 8 and the procedure shown in FIG. 9 of the third embodiment, the same data compression can be performed by executing the above-mentioned image information compression every time the frame video data input from the video capture I / F 18 is captured. Needless to say, the file obtained by performing

[0062] Thus, by performing image data compression by orthogonal transform, the information display data subjected to significant data compression while suppressing the deterioration of image quality can be obtained easily and reliably.

[0063] Example 7. Next, a seventh embodiment of the present invention will be described with reference to the drawings. Figure 1
9 is a block diagram showing a functional configuration of a vehicle-mounted image display device according to still another embodiment of the present invention. In the figure,
Reference numeral 4 denotes a record carrier equivalent to the one denoted by the same reference numeral in FIG. 1. In this case, a still image for each reading resolution of the indicating instrument and an instantaneous value of the still image are recorded in association with each other. ing. Reference numeral 5 denotes a variable amount detecting means for obtaining an instantaneous value as the indicating instrument, and reference numeral 6 retrieves an instantaneous value based on the variable amount detected by the variable amount detecting means 5 from the record carrier 4 to obtain the instantaneous value. It is a still image reading means for reading and outputting the associated still image. Reference numeral 7 denotes an image display unit for displaying a moving image by continuously displaying the still image signal read by the still image reading unit 6 as an image unit.

[0064] Further, FIG. 20 is a block diagram showing a specific device structure of the vehicle image display device shown in FIG. 19.
In the figure, 50 is a CPU that controls the entire vehicle-mounted image display device, and 51 is a bus of the CPU 50.
52 is a program ROM in which a control program of the CPU 50 is stored, and 53 is RA in which data of a process is stored.
M is a reference numeral 54, a CD-ROM disk corresponding to the record carrier 4 shown in FIG. 19, and a reference numeral 55 is a CD-ROM drive for driving the CD-ROM disk 54. 5
6 is an A / D corresponding to the variable amount detecting means 5 shown in FIG.
A conversion I / F, 57 is a speed sensor connected to the A / D conversion I / F 56, 58 is a rotation sensor,
Reference numeral 59 is an acceleration sensor, and reference numeral 60 is a tilt angle sensor. Reference numeral 61 is a frame memory for constructing image data, and 62 is a liquid crystal display corresponding to the image display means 7 shown in FIG. 19 and formed as a vehicle instrument panel. These program ROM 52, RAM 53,
The CD-ROM drive 55, the A / D conversion I / F 56, the frame memory 61, and the liquid crystal display 62 are each connected to the CPU 50 via the bus 51.

[0065] Next, the operation will be described. Here, FIG.
Reference numeral 1 is a flow chart showing the flow of the operation of the vehicle-mounted image display device configured as described above, and here, the case where it is applied to a speedometer as an indicating instrument will be described as an example.
First, in order to reproduce a frame image, in step ST600, reproduction initialization of the CD-ROM drive 55 storing image data is performed. This video data is created, for example, by the vehicle-mounted image recording apparatus according to the first embodiment so as to be suitable for a speedometer. As shown in FIG. 22, each frame video and instruction value information FP (n) _ID
Is formed into a set, and a frame video pointer FP (n) is added to each set, and
-It is recorded on the ROM disk 54. Note that 63a, 63b, ..., 63n in the figure are reproduced images for the speedometer by the respective frame images. In step ST600, this frame video pointer FP
(N) is initialized to FP (0) so that the first frame image can be taken out. In the seventh embodiment, the reproduced video 13a at the frame video pointer FP (0) has the pointer pointing at 0 km / h.

[0066] Then at step ST 601, A / D converter I
The signal of the speed sensor 57 is taken in via / F56, and the process proceeds to step ST602. In step ST602, the dimensions are converted so that the data taken in in step ST601 can be matched with the target instruction unit of the indicating instrument. For this conversion, for example, a predetermined value is set as shown in FIG. 23, and the signal output of the speed sensor 57 corresponds to 0 km / h to 200 km / h.
Make sure that 10V is output. The data converted here becomes the indication value that should be displayed on the indicating instrument.
_ID. For example, the indicated value to be displayed is 1 km / h
Then, Real_ID = 1 km / h.

[0067]. In step ST 603, takes out the frame picture frame image pointer FP (n) indicates the current from the CD-ROM drive 55 and stored in the frame memory 61, followed by step ST 604, the frame image The reproduced video of is reproduced and displayed on the liquid crystal display 62.

[0068] In next step ST 605, an instruction value information FP frame image that is currently reproduced (n) _ID
Take out. For example, if the currently reproduced frame image is FP (0), the instruction value information F extracted
P (0) _ID = 0 km / h. Then step S
In T606, the Real_ID obtained in steps ST602 and ST605 is compared with the FP (n) _ID. As a result of the comparison, if Real_ID is larger, the process branches to step ST607 to increment the frame video pointer FP (n). That is,
After the frame image on the forward reproduction side of the video data (direction in which the speed instruction value increases) can be taken out, the process returns to step ST601. On the other hand, if not, the process proceeds to step ST608.

At step ST608, Real_
The ID and FP (n) _ID are compared. As a result, R
If eal_ID is smaller, step ST609.
And the frame video pointer FP (n) is decremented. That is, after the frame image on the reverse reproduction side of the video data (direction in which the speed instruction value decreases) can be taken out, the process returns to step ST601. On the other hand, if not, the process proceeds to step ST610. In step ST610, Real_ID is 0 km /
It is checked whether or not it is h, and if it is not 0 km / h, the process branches to step ST611 and returns to step ST601 while maintaining the frame video pointer FP (n). That is, it is possible to extract the image of the frame in which the speed instruction value does not change. on the other hand,
Otherwise, it proceeds to step ST612. Step S
At T612, the frame video pointer FP (n) is FP
It is checked whether or not (0), and if FP (0), the process returns to step ST601, and if not, step ST6.
Proceed to 13.

In step ST613, the frame video pointer FP (n) is decremented. That is, after the frame image on the reverse reproduction side of the video data (direction in which the speed instruction value decreases) can be taken out, the process returns to step ST601. Note that steps ST612 and ST
In the process of 613, in the process of returning the indicated value to 0 km / h, even when the indicated value information is 0 km / h, even when the pointer of the indicating instrument image indicates between 0 km / h and 1 km / h in an analog manner. The indicating instrument image (corresponding to the frame image of FP (1) in FIG. 22) is completely 0 km /
This is so that h can be instructed. In the series of processes described above, the reproduction control is performed so that the instruction value information attached to the frame video is synchronized with the value to be instructed.

[0071] In addition, the Figure 24 illustrating the change in the indicated value of the still image to be played one after the other with the actual speed change. Here, FIG. 24 (a) is a graph showing an actual speed change that changes every predetermined time, and FIG. 24 (b) is a graph showing an instruction value shown by a still image reproduced based on the actual speed. Therefore, both the horizontal axis and the vertical axis have the same distribution. As can be seen from the characteristic lines 64 and 65 of both these graphs, when the change amount of the actual speed per unit time is large, the instruction value indicated by the still image gradually becomes smaller than the actual speed value. , Even if the actual speed becomes a constant speed, the still images are sequentially played back so that the indicated value indicated by the still image is equal to the actual speed, and the actual speed and the indicated value match. To make it work. By displaying in this way, a dynamic image representation is possible.

With the above-mentioned configuration, the display device does not need the graphic drawing process, and it is possible to display without a digital discomfort. Moreover, since the synchronous process is performed, the movement does not occur. A smooth and realistic indicator image is played back, improving visibility. Further, since the instruction value information is recorded in association with the frame video, accurate and smooth reproduction can be performed by simple synchronization control.

[0073] Example 8. Next, an eighth embodiment of the present invention will be described with reference to the drawings. Figure 2
5 is a flow chart showing the operation flow of the vehicle-mounted image display device according to still another embodiment of the present invention, and the device configuration is the same as that of the embodiment 7 shown in FIG. Note that, here, a case where the tachometer is applied as an indicating instrument is illustrated, and FIG. 26 is an explanatory diagram showing a video data file and a reproduced video thereof at that time. According to the eighth embodiment, the video data has a format configuration in which a management information recording area is added in addition to the frame video recording area as shown in FIG. 26, and is recorded by, for example, the method described in the third embodiment. It is recorded on the carrier 4.
Note that 66a, 66b, ..., 66n in the figure represent reproduced images for the tachometer of each frame image.

[0074] Next will be described the operation according to the flowchart of FIG. 25. Note that step S in FIG.
T601 to ST602 and ST603 to ST604
Are processes equivalent to those shown in FIG. First, in step ST700, the frame video management information is read into the main memory (RAM 53). Next step ST
At 601, the signal of the rotation sensor 58 is A / D converted I
After importing via / F56, step ST602
Proceed to. In step ST602, step ST601
Dimension conversion is performed so that the data taken in can be matched with the target unit of the target meter.
The data converted here becomes the indication value to be displayed on the indicating instrument and is referred to as Real_ID. For example, if the instruction value to be displayed is 30 rpm, Real_ID = 30rp
m.

[0075] In next step ST701, as a key indication value real_id, that is recorded in the pointer of the corresponding frame image from the management information (address) Re
Extract al_FP. Next, in step ST702, the frame video recording area is randomly accessed based on the pointer Real_FP so that the corresponding frame video can be taken out.
Update P (n) to Real_FP. After that, in step ST603, the frame image is taken out from the CD-ROM drive 55 and stored in the frame memory 61.
Then, in step ST604, the frame image is displayed on the liquid crystal display 62. Hereinafter, step ST601
Then, the above process is repeated.

[0076] Since the taking format configuration obtained by adding the management information recording area in this way in addition to the frame the video recording area, will be able to random access, it is possible to reproduce the video to be reproduced directly, as tachometer It is possible to perform high-speed follow-up display even with an indicating instrument that requires a sharp change in the pointer.

[0077] Example 9. Next, a ninth embodiment of the present invention will be described with reference to the drawings. Figure 2
7 is a flow chart showing the operation flow of the vehicle-mounted image display device according to still another embodiment of the present invention, and the device configuration is the same as that of the embodiment 7 shown in FIG. Here, the case where the present invention is applied to a speedometer of a sports car having a high maximum speed and a high exercise performance as an indicating instrument is illustrated, and FIG. 28 is an explanatory diagram showing a video data file and a reproduced video thereof at that time. . According to the ninth embodiment, the video data is each frame video and its instruction value information FP.
The (n) _ID has a format configuration as shown in FIG. 28 in which a management information recording area is added in addition to the frame video recording area stored as a set. For example, by the method described in the fourth embodiment, etc. It is recorded on the record carrier 4. In the figure, 67a, 67b, ...
67n shows a reproduced image for a speedometer of a sports car by each frame image.

[0078] Next will be described the operation according to the flowchart of FIG. 27. Note that in this FIG. 27, step ST8
Other than 00, steps ST600 to ST in FIG.
613 and steps ST700 to ST7 in FIG.
The processing according to No. 02 is combined, and the individual steps operate in the same manner as in the seventh and eighth embodiments, so detailed description will be omitted.

[0079] First step ST600, then steps ST700 is executed, further steps ST601~S
After T605 is executed, the process proceeds to step ST800. In this step ST800, the instruction value FP (n) _ID currently being reproduced is the value Real_I to be actually displayed.
It is checked whether or not it is apart from D and a predetermined constant value K. As a result, if it is separated from the constant value K, the process proceeds to step ST701, and if it is within the constant value K, the process proceeds to step ST606 to execute the subsequent processing.
In this way, the processes after step ST701 or ST606 are appropriately selected and executed according to the above-mentioned conditions.

As described above, by making the subsequent processing selectable depending on the conditions, if the reproduced video follows the instruction value to be instructed within a certain range, step ST60.
6, the synchronous reproduction is carried out so that the instruction value information added to the frame video and the information to be instructed obtained from the variable amount detecting means coincide with each other, and when a certain range is deviated, step ST701. It is possible to recover the instruction delay by jumping to the next step by performing a random access playback. Since the synchronous reproduction and the random access reproduction can be arbitrarily switched and reproduced, it is possible to display an indicating instrument having both smooth reproduction and high-speed response.

[0081] Example 10. Next, a tenth embodiment of the present invention will be described with reference to the drawings. FIG. 29 is an explanatory diagram showing a video data file and its reproduced video of the vehicle-mounted image display device according to still another embodiment of the present invention. In the figure, 68a, 68b, ...
8g shows a reproduced image for the speedometer by each frame image. The video data file is created by the vehicle-mounted image recording device according to the fifth embodiment. Here, in the tenth embodiment, the pointer of the indicating instrument is displayed step by step in units of reading resolution, and the device configuration is the same as that of the seventh embodiment shown in FIG.

[0082] In other words, indicating instrument of this Example 10,
Reading resolution is 10km / h and maximum speed is 60km / h
Since it is a speedometer of h, the frame data and the indicated value information FP are included in the image data file shown in FIG.
(N) _ID is 0 km / h, 10 km / h, 20 km
./H, ..., 60 km / h, only 7 sets are stored. By performing the same operation as that of the seventh embodiment using this video data file, the pointer of the indicating instrument is quantized and displayed in steps of 10 km / h as the speed changes.

With this configuration, the pointer of the indicating instrument is displayed step by step in units of reading resolution, so that reading errors due to individual differences can be prevented and the information can be accurately expressed in the vehicle. An image display device can be provided.

[0084] Example 11. Next, an eleventh embodiment of the present invention will be described with reference to the drawings. FIG. 30 is a block diagram showing a device configuration of an in-vehicle image display device according to still another embodiment of the present invention. Corresponding parts are designated by the same reference numerals as those in FIG. 20 and their description is omitted. In the figure, reference numeral 70 denotes an image information decompressing unit that decompresses image information compressed by the orthogonal transformation and restores the original data by decompressing the image information by the inverse transformation. In the eleventh embodiment, the orthogonal transformation is 2 Image information compressed using the three-dimensional DCT is converted into a two-dimensional inverse discrete cosine transform (Inverse Discrete Cosin) represented by the following equation (2).
eTransform: IDCT) is performed to expand.

[0085]

[Equation 2]

The other construction is almost the same as that of the seventh embodiment, but according to the eleventh embodiment, the data of the video data file is created by the vehicle-mounted image recording apparatus of the sixth embodiment, for example. As shown in FIG. 31, the frame data is stored in the DCT coefficient representation of the frame video, that is, in the form of spatial information compression.
Note that 71a, 71b, ..., 71 in FIG.
n is a compressed frame image represented by a DCT coefficient, and 7
2a, 72b, ..., 72n are compressed frame images 7
.., 71n are paired with the instruction value information 1a, 71b ,. As described above, the frame data in the record carrier 4 is recorded in a state in which it is significantly compressed as compared with the data of the non-compressed and indicating instrument video having the same meaning.

[0087] Next, the operation will be described. Here, FIG.
2 is a flowchart showing the flow of the operation of this vehicle-mounted image display device. Note that in this FIG. 32, step ST9
Other than 00 and ST901, step S in FIG.
T600 to ST602 and steps ST604 to ST6
Since each step of 13 is the same as the operation of the seventh embodiment, detailed description will be omitted.

[0088] First, after finishing the process of step ST600～ST602, in step ST900, the DCT coefficients of a block in units of 8 × 8 pixels of the frame image currently being reproduced prepared removed one frame in step ST901 move on. In step ST901,
Perform 1 × 8 × 8 two-dimensional IDCT calculation for each DCT coefficient extracted in step ST900.
Perform on blocks of the entire frame. As a result, the image information that has undergone the spatial information compression is expanded, and the video of the speedometer is constructed on the frame memory 61. After that, the process proceeds to step ST604, and the remaining series of processes is executed.

By decompressing and processing the image data compressed and recorded in this way,
It is possible to reproduce a decompressed image while suppressing deterioration of image quality from the information display data that has undergone significant data compression. Therefore, it is possible to use a record carrier having a small storage capacity, and if the record carrier has the same storage capacity, it is possible to store more kinds of indicating instrument images.

[0090] Example 12. In addition, the vehicle-mounted image recording device is described in each of the above-described Examples 1 to 6 and the vehicle-mounted image display device is described in each of Examples 7 to 11, respectively. It may be integrated as an image recording / display system. FIG. 33 is a block diagram showing the functional arrangement of such an on-vehicle image recording / displaying system according to still another embodiment of the present invention. In the figure, 1 is a still image signal generating means, 2 is an instantaneous value signal generating means, 3 is a recording means, 4 is a record carrier, 5 is a variable amount detecting means, 6 is a still image reading means, and 7 is an image display means. , Which are equivalent to those denoted by the same reference numerals in FIGS. 1 and 19, respectively.

In the on-vehicle image recording / displaying system configured as described above, the still image signal of any indicator is generated by the still image signal generating means 1 on the image recording device side,
From the instantaneous value signal generating means 2, the still image signal generating means 1
The instantaneous value signal representing the generated still image is output, and the recording unit 3 records the still image signal and the instantaneous value signal on the record carrier 4 in association with each other. On the other hand, on the image display device side, the variable amount detecting means 5 detects the variable amount which is the indicated value of the indicating instrument, and the still image reading means 6 detects the variable amount (instantaneous value) detected by the variable amount detecting means 5. The record carrier 4 is searched based on the read still image signal from the record carrier 4, and the still image reading means 6 is read by the image display means 7.
The still image signal read by is displayed continuously as an image unit, and thereby a moving image is expressed.

With this configuration, the indicating instrument video data, which is a combination of the indicating instrument image data for each frame image of the indicating instrument, can be automatically edited, and the indicating instrument image data of the indicating instrument image data can be automatically edited based on the instruction information. Playback and display can be performed. Therefore, it is possible to configure a realistic and accurate image recording / display system for an indicating instrument at low cost while reducing the design work.

[0093]

As described above, according to the invention described in claim 1,
According to, the instantaneous value signal that encodes the variable value of the instantaneous value,
A still image signal for visually displaying the instantaneous value indicated by the instantaneous value signal is paired and recorded on a record carrier, and based on the variable amount detected and encoded by the variable amount detecting means. Since the instantaneous value signal recorded on the record carrier is searched and the still image signal that is paired with the instantaneous value signal is read and the still image is reproduced and displayed, it is possible to display the still image for each frame image of the indicating instrument. The video data of the indicating instrument can be automatically edited, and the video data of the indicating instrument can be played back and displayed based on the instruction information, which reduces the design effort and makes it realistic. There is an effect that an image recording and displaying system for an accurate indicating instrument can be constructed at low cost.

Further , according to the present invention, the set of the instantaneous value signal and the still image signal corresponding to the instantaneous value signal is recorded on the record carrier in the increasing order of the instantaneous value signal. It is possible to sequentially record the data in synchronization with each other, and it is possible to create the video data in real time, and it is possible to easily perform the recording on the record carrier.

Further , according to the present invention, since the actual indicating value of the indicating instrument is changed, the changed state is photographed, and the still image signal for visually displaying it is generated. , You can get the indicator image of the model itself, you can easily and surely create the indicator image data without the jaggedness peculiar to graphics drawing, and you can generate multiple still images with a simple structure. Therefore, the degree of freedom in design is improved.

Further , according to the present invention, since a plurality of still image signals, each of which shows a variable instantaneous value and different from each other, are generated by computer graphics, it is difficult to create a design instruction in reality. Even with an instrument, it is possible to easily and reliably create virtual-realistic and three-dimensional indicator image data, and further, the CG drawing process is performed on the image recording device side, and the image data that is the drawing result is obtained. Since it can be passed to the image display device side via a record carrier, even though the image display device side configures the video data with a simple device, the number of simultaneous colors, drawing quality, real-time property, etc. There is an effect that it is possible to display a CG image as an indicating instrument equivalent to the recording device side.

Further , according to the present invention, the instantaneous value signals generated by the instantaneous value signal generating means are deleted from each other until the number of the overlapping instantaneous value signals becomes at least one. Since it is configured so that the minimum necessary video data can be easily and reliably obtained, and a video suitable for reproducing a quantized indicator value video in which the pointer is step-displayed in the unit of reading resolution. By obtaining data and performing such step display, it is possible to prevent reading errors due to individual differences.

Further , according to the present invention, since the still image signal is compressed by the predetermined conversion method and recorded on the record carrier, it is possible to perform a large data compression while suppressing the deterioration of the image quality. Therefore, it is possible to use an inexpensive record carrier having a small storage capacity.

Further , according to the present invention, the management information of the still image signal is collectively recorded in an area set separately from the area for recording a plurality of sets of the instantaneous value signal and the still image signal of the record carrier. With this configuration, image data that can be read by either the synchronization method or the random access method on the image display device side is obtained, and it supports both the playback method that emphasizes smoothness and the reproduction method that emphasizes high speed. Therefore, there is an effect that it is possible to arbitrarily switch those methods and reproduce.

Further , according to the present invention, even when the instantaneous value indicated by the still image signal used for display is different from the variable amount detected by the variable amount detecting means, it is in the order recorded on the record carrier. Since the still image signals are read and reproduced one after another, it is possible to display without digital discomfort, and it is possible to reproduce a realistic indicating instrument image with smooth movement.

Further , according to the present invention, the variable amount detected by the variable amount detecting means and the electrostatic amount used for display are displayed.
The difference from the instantaneous value indicated by the image signal deviated from the specified range.
Random to catch up with instructions if you jump
When the management information is searched by the access method and a still image signal based on it is output, and when tracking is performed within a predetermined range,
Still image signal paired with the variable instantaneous value signal
Since it is configured to output in synchronization, it is possible to arbitrarily switch between synchronous playback (smooth playback) and random access playback (high-speed response) for playback. Normally, smooth playback is performed and sharp changes in the pointer are performed. At times, there is an effect that it is possible to skip the image and perform reproduction with emphasis on accuracy.

Further , according to the present invention, a still image signal is compressed by a predetermined conversion method and recorded on a record carrier, and the still image signal read from the record carrier is expanded by inverse conversion of the conversion method. Since it is configured to be sent to the image display means, it is possible to use an inexpensive record carrier with a small storage capacity while suppressing deterioration of image quality.
If the record carrier has the same storage capacity, there is an effect that more types of video data can be stored.

Further , according to the present invention, still image signals for visually displaying the respective instantaneous values of the variable amounts generated by the still image signal generating means are collectively recorded in a predetermined area of the record carrier, and Since the management information of the still image signal is collectively recorded in a separately set area, it is possible to easily and surely obtain image data suitable for random access on the image display device side. Alternatively, an image recording table applicable to a record carrier in which it is difficult to synchronously record instruction value information in the video recording area
There is an effect that the indication system can be obtained.

Further , according to the present invention, the record carrier in which the still image signals visually displaying the instantaneous values of the variable amounts and the management information thereof are collectively recorded in the separately set areas, The instantaneous value of the variable amount detected by the variable amount detecting means is used as a key to reproduce and display the still image from the still image signal read based on the corresponding management information, so that the frame video is randomly accessed. Since it becomes possible to directly reproduce the image of the indicating instrument to be reproduced, it is possible to obtain an image recording / display system capable of high-speed follow-up display even on an indicating instrument that requires a sharp change in the pointer. effective.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of an in-vehicle image recording device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing filing of video data in the above embodiment.

FIG. 3 is a block diagram showing a device configuration of an in-vehicle image recording device according to the embodiment.

FIG. 4 is a characteristic diagram for explaining a sweep within an allowable instruction range in the above embodiment.

FIG. 5 is a flowchart showing a flow of operations in the above embodiment.

FIG. 6 is a format diagram showing a video data file in the above embodiment.

FIG. 7 is a block diagram showing a device configuration of an in-vehicle image recording device according to a second embodiment of the present invention.

FIG. 8 is a flowchart showing a flow of operations in the above embodiment.

FIG. 9 is a flowchart showing an operation flow of the vehicle-mounted image recording device according to the third embodiment of the present invention.

FIG. 10 is a format diagram showing a video data file in the above embodiment.

FIG. 11 is a format diagram showing details of a management information recording area in the embodiment.

FIG. 12 is a flowchart showing an operation flow of the vehicle-mounted image recording apparatus according to the fourth embodiment of the present invention.

FIG. 13 is a format diagram showing a video data file in the above embodiment.

FIG. 14 is a flowchart showing an operation flow of the vehicle-mounted image recording apparatus according to the fifth embodiment of the present invention.

FIG. 15 is an explanatory diagram showing format conversion of a video data file in the above embodiment.

FIG. 16 is a block diagram showing a device configuration of an in-vehicle image recording device according to a sixth embodiment of the present invention.

FIG. 17 is an explanatory diagram showing image information compression of a video data file in the above embodiment.

FIG. 18 is a flowchart showing a flow of operations in the above embodiment.

FIG. 19 is a block diagram showing a functional configuration of an in-vehicle image display device according to Embodiment 7 of the present invention.

FIG. 20 is a block diagram showing a device configuration of an in-vehicle image display device according to the above-mentioned embodiment.

FIG. 21 is a flow chart showing a flow of operations in the above embodiment.

FIG. 22 is an explanatory diagram showing a video data file and a reproduced video thereof in the above embodiment.

FIG. 23 is an explanatory diagram showing instruction value conversion in the above embodiment.

FIG. 24 is a characteristic diagram showing a change in an instruction value of a still image according to an actual speed change in the above embodiment.

FIG. 25 is a flowchart showing a flow of operations of the vehicle-mounted image display device according to the eighth embodiment of the present invention.

FIG. 26 is an explanatory diagram showing a video data file and its reproduced video in the above embodiment.

FIG. 27 is a flow chart showing the operation flow of the vehicle-mounted image display device according to the ninth embodiment of the present invention.

FIG. 28 is an explanatory diagram showing a video data file and its reproduced video in the embodiment.

FIG. 29 is an explanatory diagram showing a video data file and its reproduced video in the vehicle-mounted image display device according to the tenth embodiment of the present invention.

FIG. 30 is a block diagram showing the device configuration of an in-vehicle image display device according to example 11 of the present invention.

FIG. 31 is a format diagram showing a video data file in the above embodiment.

FIG. 32 is a flowchart showing a flow of operations in the above-mentioned embodiment.

FIG. 33 is a block diagram showing the functional configuration of a vehicle-mounted image recording / displaying system according to a twelfth embodiment of the present invention.

[Explanation of symbols]

1 still image signal generating means, 2 instantaneous value signal generating means,
3 recording means, 4 record carrier, 5 variable amount detecting means, 6
Still image reading means, 7 image display means, 15 signal generator (instantaneous value signal generating means), 16 actual indicating instrument, 1
7 video means (video camera, still image signal generation means), 30 CG video generation means (still image signal generation means), 40 image information compression means, 56 A / D conversion I /
F (variable amount detecting means), 70 image information expanding means.

Claims (12)

(57) [Claims] 1. An instantaneous value signal generating means for generating and outputting an instantaneous value signal obtained by encoding a variable amount of a predetermined instantaneous value, and an instantaneous value indicated by a plurality of different instantaneous value signals output by the instantaneous value signal generating means. Still image signal generating means for generating and outputting a still image signal to be visually displayed, an instantaneous value signal from the instantaneous value signal generating means, and a still image signal from the still image signal generating means corresponding to the instantaneous value signal. Recording means for recording a plurality of sets on a predetermined record carrier,
Variable amount detecting means for detecting and encoding the variable amount, an instantaneous value determined based on a predetermined relationship between the instantaneous value indicated by the still image signal used for display and the variable amount detected by the variable amount detecting means. Still image reading means for retrieving a signal from the record carrier and reading and outputting a still image signal paired with the record carrier, and image display for reproducing and displaying a still image from the still image signal output by the still image reading means. Image recording and display system having means. 2. A still image signal, which forms a pair with the instantaneous value signal generated by the instantaneous value signal generating means and the instantaneous value signal generated by the still image signal generating means, is recorded on a record carrier in the increasing order of the instantaneous value signal. The image recording / displaying system according to claim 1 , wherein the image recording / displaying system is recorded. 3. The still image signal generating means comprises image pickup means for photographing the changing indication value of the actual indicating instrument, and the actual indication value of the indicating instrument is obtained based on the photographed image signal taken by the image pickup means. characterized in that it comprises a function of generating a plurality of still image signals for each visual display, the image recording system according to claim 1. 4. The still image signal generating means is provided with CG image generating means for generating a plurality of still image signals, each of which indicates a variable amount of instantaneous value, different from each other, by computer graphics. image <br/> image recording display system according to claim 1. 5. The recording means combines the instantaneous value signal and the instantaneous value signal until at least one instantaneous value signal generated by the instantaneous value signal generating means is duplicated. the still image signal generated by the still image signal generating means to be, characterized in that it comprises a function of deleting every the set, the image recording system according to claim 1. 6. An image information compression means for compressing a still image signal recorded on a record carrier in combination with an instantaneous value signal by a predetermined conversion method and sending the compressed image signal to a recording means. Item 1. The image recording / displaying system according to Item 1 . 7. A record carrier for recording a plurality of sets of instantaneous value signals and still image signals as a set, for recording the management information of the still image signals together separately from the area where the record carriers are recorded. characterized in that it comprises a region, according to claim 1
The image recording and displaying system described in . 8. The still image reading means reads the still image signal from the record carrier even if the variable amount detected by the variable amount detecting means and the instantaneous value indicated by the still image signal used for display are different. There, characterized in that a function for sending read one after another in the street the order in which they are recorded on the record carrier on the image display unit, the image recording system according to claim 1. 9. The still image reading means includes a variable amount detected by the variable amount detecting means and a still image signal used for display.
If the difference from the indicated instantaneous value deviates from the specified range, jump
Random access method to recover the delay of each instruction
By searching for the management information and outputs a still image signal based thereon, in the case where, following a predetermined range and a function to synchronize outputs a still image signal which is the instantaneous value signal and the set of variable amounts characterized in that there, according to claim 1
The image recording system. 10. A still image signal recorded in combination with an instantaneous value signal on a record carrier is compressed by a predetermined conversion method, and the still image signal read by the still image reading means from the record carrier is used. , characterized in that a picture information decompression means for sending to the image display unit and decompressed by inverse transformation of the transformation method, the image recording system according to claim 1. 11. A still image signal generating means for generating and outputting a still image signal for visually displaying a variable amount of instantaneous value, and a still image signal from the still image signal generating means in a predetermined area of a record carrier. The image recording / displaying system according to claim 1, further comprising recording means for collectively recording and collectively recording the management information of the still image signal in an area set separately from the area for recording the still image signal.
Mu. 12. A still image signal in which a variable amount of instantaneous value is visually displayed is recorded in a predetermined area, and the area is set separately from the area in which the still image signal is recorded. A record carrier on which management information of the still image signal is recorded, variable amount detecting means for detecting and encoding the variable amount, based on management information corresponding to the instantaneous value of the variable amount detected by the variable amount detecting means, claims a still image signal corresponding with the still image reading means from the record carrier to read output, image display means for the still image reading means reproduces the still image from the still image signal is output and displayed
Item 1. The image recording / displaying system according to Item 1.