JP2011217116A - Reproducing device, imaging reproducing system, imaging reproducing method, reproducing program and imaging program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the following problem: time for a user to search for a required moving image becomes long.SOLUTION: The reproducing device 3 includes: an acquisition part 21 which acquires moving image information MD in which the moving image obtained by picking up the external world during travel of an automobile 5 is correlated with danger values α1, α2, α3 for determining danger D1, D2, D3 of travel detected during the travel of the automobile 5; a moving image extractor 23 which extracts a partial moving image PMn which is a part of time length of the moving image included in the moving image information MD, based on magnitude of the danger D1, D2, D3 set based on danger values α1, α2, α3 included in the moving image information MD acquired by the acquisition part 21; and a display unit 25 which displays the partial moving image PMn extracted by the moving image extractor 23 to be reproducible on a screen.

Description

  The present invention relates to a playback device, an imaging playback system, an imaging playback method, a playback program, and an imaging program.

  2. Description of the Related Art A reproduction device that reproduces an image captured by an imaging device such as a drive recorder while the vehicle such as an automobile is traveling is known.

Patent Document 1 discloses a drive recorder that transmits a captured moving image to the outside wirelessly.
[Prior art documents]
[Patent Literature]
[Patent Document 1] JP 2009-288915 A

  However, with the technique of Patent Document 1, a user cannot view a moving image in a necessary time zone unless the user first views the moving image. Therefore, there is a problem that it takes a long time for a user to search for a necessary moving image.

  In order to solve the above-mentioned problem, in the first aspect of the present invention, a moving image that captures the outside world while the vehicle is traveling, and a risk for determining the risk of traveling detected while the vehicle is traveling. The video information based on the magnitude of the risk set based on the risk value included in the video information acquired by the acquisition unit A moving image extraction unit that extracts a partial moving image that is a part of a time length of the moving image included in the display, and a display unit that displays the partial moving image extracted by the moving image extraction unit on a screen so as to be reproducible. Is provided.

  According to a second aspect of the present invention, there is provided an imaging reproduction system including an imaging device that captures a moving image and a reproducing device that reproduces the moving image captured by the imaging device, wherein the imaging device is in a traveling state of a vehicle. A moving image generating unit that captures an image of the outside world to generate a moving image, a danger detecting unit that detects a danger value for determining a risk of traveling while the vehicle is traveling, and the moving image generated by the moving image generating unit And a moving image information recording unit that records moving image information in association with the danger value detected by the danger detection unit, and the playback device acquires the moving image information, and the acquisition A part of the time length of the moving image included in the moving image information based on the degree of the risk set based on the danger value included in the moving image information acquired by the section Extract partial videos It has a video extraction unit, and a display unit for renewable displaying the partial videos extracted by the moving image extracting unit on the screen to be.

  In the third aspect of the present invention, the moving image information that associates a moving image that captures the outside world while the vehicle is traveling with a danger value that is detected during the traveling of the vehicle. And a part of the time length of the moving image included in the moving image information based on the degree of the risk set based on the danger value included in the acquired moving image information Is extracted, and the extracted partial moving image is displayed on the screen so as to be reproducible.

  According to a fourth aspect of the present invention, there is provided an imaging / reproducing method for capturing a moving image and reproducing the captured moving image, capturing a moving image by capturing an outside world while the vehicle is traveling, and driving the vehicle Detecting a danger value for determining the danger level of traveling, recording the moving picture information in which the generated moving picture is associated with the detected dangerous value, acquiring the moving picture information, and acquiring A partial moving image that is a part of a time length of the moving image included in the moving image information based on the degree of the risk set based on the danger value included in the moving image information The extracted partial video is displayed on the screen so as to be reproducible.

  According to a fifth aspect of the present invention, there is provided a moving image reproduction program for a computer, wherein the computer captures a moving image obtained by imaging the outside world while the vehicle is traveling, and a travel risk detected while the vehicle is traveling. A function for acquiring moving image information in association with a risk value for determining a degree, the moving image based on the magnitude of the risk level set based on the risk value included in the acquired moving image information The function of extracting a partial moving image that is a part of the time length of the moving image included in the information and the function of displaying the extracted partial moving image on the screen so as to be reproducible are realized.

  According to a sixth aspect of the present invention, there is provided a moving image capturing program for a computer, the function of causing the computer to capture an image of the outside world during the traveling of the vehicle to generate a moving image, the danger of traveling while the vehicle is traveling A function of detecting a danger value for determining the degree, and a function of recording moving picture information in which the generated moving picture is associated with the detected dangerous value are realized.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

It is a block diagram which shows the function structure of an imaging reproduction system. It is a figure explaining an example of the data format of moving image information. It is a figure explaining the partial moving image currently displayed on the display part, and a danger level. It is a figure explaining the still picture currently displayed on the display part. It is a flowchart explaining the imaging process of an imaging device. It is a flowchart explaining the reproducing process of a reproducing | regenerating apparatus. It is a flowchart explaining the extraction process of a moving image extraction part. It is a block diagram which shows the hardware constitutions of the imaging device of an imaging reproduction system. It is a block diagram which shows the hardware constitutions of the reproducing | regenerating apparatus of an imaging reproduction system. It is a flowchart explaining the extraction process of the moving image extraction part by the example of a change.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  With reference to the drawings, a description will be given of an embodiment which is an imaging reproduction system for a kind of vehicle of a vehicle. FIG. 1 is a block diagram illustrating a functional configuration of the imaging reproduction system.

  The imaging / playback system 1 captures the outside world while the automobile 5 is traveling, and plays back the captured moving image. As illustrated in FIG. 1, the imaging / reproducing system 1 includes an imaging device 2 that captures a moving image and a reproducing device 3 that reproduces the moving image captured by the imaging device 2.

  The imaging device 2 is attached to the front part of the automobile 5 and images a moving image of the outside world while the automobile 5 is traveling to generate moving image information MD. The imaging device 2 includes a moving image generation unit 11, a danger detection unit 12, and a moving image information recording unit 13.

  The moving image generation unit 11 captures the outside world while the automobile 5 is traveling and generates a moving image. Here, the moving image generation unit 11 images the situation in front of the automobile 5 at a wide angle. The moving image generation unit 11 outputs the generated moving image to the moving image information recording unit 13. A known video camera or the like can be applied to the moving image generation unit 11.

  The danger detection unit 12 detects vertical acceleration α1, longitudinal acceleration α2, and left-right acceleration α3, which are examples of a plurality of types of acceleration of the automobile 5, and outputs them to the moving image information recording unit 13. The three types of accelerations α1, α2, and α3 correspond to risk values for determining the risk levels D1, D2, and D3 during travel of the automobile 5. In the present embodiment, the risk levels D1, D2, and D3 are absolute values of the accelerations α1, α2, and α3. The danger detection unit 12 includes a vertical acceleration sensor 15, a longitudinal acceleration sensor 16, and a lateral acceleration sensor 17.

  The vertical acceleration sensor 15 detects the vertical acceleration α1 during travel of the automobile 5. Then, the vertical acceleration sensor 15 outputs the detected vertical acceleration α1 to the moving image information recording unit 13.

  The longitudinal acceleration sensor 16 detects the longitudinal acceleration α2 while the automobile 5 is traveling. Then, the longitudinal acceleration sensor 16 outputs the detected longitudinal acceleration α2 to the moving image information recording unit 13.

  The lateral acceleration sensor 17 detects the lateral acceleration α3 while the automobile 5 is traveling. Then, the lateral acceleration sensor 17 outputs the detected lateral acceleration α3 to the moving image information recording unit 13.

  The moving image information recording unit 13 stores the moving image information MD in which the moving image is associated with the accelerations α1, α2, and α3 in the storage medium 6 such as an SD card. The moving image information MD will be described later.

  The playback device 3 plays back a moving image captured by the imaging device 2 and stored in the storage medium 6. The playback device 3 includes an acquisition unit 21, a numerical value storage unit 22, a moving image extraction unit 23, a still image extraction unit 24, and a display unit 25.

  The acquisition unit 21 acquires the moving image information MD stored in the storage medium 6. As described above, the moving image information MD corresponds to a moving image in which the outside world is imaged while the vehicle 5 is traveling, and acceleration for determining the travel risk levels D1, D2, and D3 detected while the vehicle 5 is traveling. Information. Then, the acquisition unit 21 outputs the acquired moving image information MD to the moving image extraction unit 23.

  The numerical value storage unit 22 stores an extraction number AN (for example, six) and three types of risk threshold groups Th1, Th2, and Th3. The extraction number AN is a number for extracting the partial moving image PMn. Each risk threshold group Th1, Th2, Th3 is a group of threshold values of the risk levels D1, D2, D3. Furthermore, the danger threshold value group Th1 includes a plurality of danger threshold values Th1n (n = 1, 2,...) Having different values. Note that “Th11> Th12> Th13>... Similarly, the risk threshold value group Th2 includes a plurality of risk threshold values Th2n. Further, the danger threshold group Th3 includes a plurality of danger thresholds Th3n.

  The moving image extracting unit 23 sets the risk levels D1, D2, and D3 based on the accelerations α1, α2, and α3 included in the moving image information MD acquired by the acquiring unit 21. Then, the moving image extraction unit 23 extracts a partial moving image PMn, which is a part of the time length of the moving image included in the moving image information MD, based on the risk levels D1, D2, and D3, and displays the extracted partial moving image PMn. To the unit 25.

  Hereinafter, an example of the extraction operation of the moving image extraction unit 23 will be described focusing on the extraction process. First, the moving image extraction unit 23 sets absolute values of the accelerations α1, α2, and α3 as the risk levels D1, D2, and D3. That is, the absolute value of the vertical acceleration α1 is the danger level D1. For example, when the driver drives the automobile 5 at a high speed on a road with large irregularities, the risk D1 increases. The absolute value of the longitudinal acceleration α2 is the danger level D2. Therefore, when the driver of the automobile 5 performs an operation of rapid acceleration or rapid deceleration, the danger level D2 increases. The absolute value of the lateral acceleration α3 is the danger level D3. Therefore, when the driver of the automobile 5 suddenly operates the steering wheel at a high speed, the danger level D3 increases.

  Next, the moving image extraction unit 23 extracts a partial moving image PMn having risk levels D1, D2, and D3 that are greater than or equal to the maximum risk threshold values Th11, Th21, and Th31 among the risk threshold groups Th1, Th2, and Th3. The risk levels D1, D2, and D3 compared with the risk threshold values Th11, Th21, and Th31 are the maximum values of the risk levels D1, D2, and D3. As another example, the risk levels D1, D2, and D3 compared with the risk threshold values Th11, Th21, and Th31 may be average values of the risk levels D1, D2, and D3. Here, the average value is a value obtained by averaging the average values of the danger levels D1, D2, and D3 for a very short time (for example, 0.1 seconds) shorter than the unit time.

  Thereafter, when the number of extracted partial moving images PMn is not equal to or greater than the extracted number AN, the moving image extracting unit 23 selects the next largest risk threshold Th12, Th22, Th32 from each risk threshold group Th1, Th2, Th3. The moving image extraction unit 23 extracts the partial moving image PMn based on the risk threshold values Th12, Th22, and Th32. Thereafter, the moving image extracting unit 23 repeats these operations until the number of extracted partial moving images PMn becomes equal to or greater than the extraction number AN, and extracts partial moving images PMn that are equal to or greater than the extraction number AN. In other words, the moving image extracting unit 23 has the largest risk threshold value among the risk threshold values Th1n, Th2n, and Th3n that the partial moving image PMn having the risk levels D1, D2, and D3 equal to or higher than the risk threshold values Th1n, Th2n, and Th3n is equal to or greater than the extraction number AN. Th1n, Th2n, Th3n are selected from a plurality of risk threshold values Th1n, Th2n, Th3n, and a partial moving image PMn having risk levels D1, D2, D3 greater than or equal to the selected risk threshold values Th1n, Th2n, Th3n is extracted. Here, the partial moving image PMn includes not only a moving image of the time when the danger levels D1, D2, and D3 exceed the dangerous threshold values Th1n, Th2n, and Th3n (hereinafter, the dangerous time DT), but also moving images before and after the moving image. When the danger time DT is longer than the unit time, or when the danger time DT straddles the preceding and following partial movies PMn, the partial movie PMn is generated and extracted so as to include a few seconds before and after the danger time DT. May be. Then, the moving image extracting unit 23 outputs image information for display including the extracted partial moving image PMn and the risk degrees D1, D2, and D3 of the partial moving image PMn to the display unit 25.

  The still image extraction unit 24 includes a still image SG1 having a danger time DT in which the danger levels D1, D2, and D3 are greater than or equal to the danger threshold values Th1n, Th2n, and Th3n, and a still image SG2 that is a predetermined time before and after the dangerous time DT. , SG3 is extracted. For example, when the dangerous time DT includes a plurality of frames of still images, the still image extraction unit 24 extracts one frame of a still image having the highest degree of danger DT, one second before the dangerous time DT, and The still image after 1 second is extracted frame by frame. Then, the still image extraction unit 24 outputs the extracted still images SG1, SG2, and SG3 to the display unit 25.

  The display unit 25 is configured by a liquid crystal display or the like. The display unit 25 displays the partial moving image PMn extracted by the moving image extraction unit 23 so as to be reproducible on the screen. The display unit 25 displays the still images SG2, SG1, and SG3 extracted by the still image extraction unit 24. The partial moving image PMn displayed on the display unit 25 will be described later.

  Next, the data format of the moving image information will be described with reference to FIG. FIG. 2 is a diagram illustrating an example of a data format of moving image information.

  The moving image information recording unit 13 receives the moving image generated by the moving image generating unit 11 and the accelerations α1, α2, and α3 detected by the danger detecting unit 12. Then, as shown in FIG. 2, the moving image information recording unit 13 is configured to generate a partial moving image PMn (n = 1, 2,...) Having a unit time (for example, 10 seconds to 20 seconds) from continuously input moving images.・ ・) Is generated. In addition, the moving image information recording unit 13 generates accelerations α1, α2, and α3 having a unit time length from the continuously input accelerations α1, α2, and α3. Then, the moving image information recording unit 13 associates the partial moving image PMn with the accelerations α1, α2, and α3 of the unit time in the same time zone as each partial moving image PMn to form one unit file. The moving image information recording unit 13 stores the plurality of files in the storage medium 6 in time series. Thereby, the moving image information MD is stored in the storage medium 6 as a collection of files.

  Next, a display screen displayed on the display unit 25 will be described with reference to FIG. FIG. 3 is a diagram illustrating the partial moving image and the degree of risk displayed on the display unit.

  As shown in FIG. 3, the display unit 25 displays one frame of the partial moving image PMn on the upper left of the screen. One frame displayed here is a frame of the start time of the partial moving image PMn. When the user selects the partial moving image PMn of one frame with a cursor or the like, the display unit 25 reproduces the partial moving image PMn. Moreover, the display part 25 displays the danger levels D1, D2, and D3 in the lower half area together with the partial moving image PMn. Here, the display unit 25 indicates that the time zone of the danger time DT in which the danger levels D1, D2, and D3 are equal to or higher than the danger threshold values Th1n, Th2n, and Th3n is different from the time zone that is not the danger time DT. Separately displayed. For example, the display unit 25 displays the time zone of the danger time DT in which the danger level D2 is equal to or greater than the danger threshold Th23, and displays a time zone that is not the danger time DT without dots. In the present embodiment, the danger time DT is set based on the danger threshold (here, the danger threshold Th23) selected by the movie extraction unit 23 so that the extracted partial animation PMn is equal to or greater than the extraction number AN. However, the danger time DT may be set by the largest danger threshold Th22 among the danger thresholds Th22 and Th23 in which the danger level D2 exceeds. Furthermore, a display of a time zone in which the danger level D2 exceeds the danger threshold Th22 (for example, fine dot display), a display of a time zone in which the danger level D2 exceeds the danger threshold Th23 (for example, a coarse dot display), and a danger time DT Other times may be different from different displays (for example, display without dots).

  As shown in FIG. 4, the display unit 25 displays the still images SG2, SG1, and SG3 extracted by the still image extraction unit 24 side by side in a time series and in a horizontal direction. FIG. 4 is a diagram illustrating a still image displayed on the display unit.

  Next, the imaging / reproducing operation of the imaging / reproducing system described above will be described. The imaging reproduction operation includes an operation of imaging a moving image and reproducing the captured moving image. In the following description, the number after “S” indicates a step number.

  First, the imaging process of the imaging device 2 will be described with reference to FIG. FIG. 5 is a flowchart for describing an imaging process of the imaging apparatus. The moving image generation unit 11 of the imaging device 2 starts to generate a moving image by imaging the outside of the vehicle 5 in the traveling vehicle 5. Then, the moving image generation unit 11 outputs the moving image to the moving image information recording unit 13. The acceleration sensors 15, 16, and 17 of the danger detection unit 12 start detecting the accelerations α 1, α 2, and α 3 for determining the danger levels D 1, D 2, and D 3 and output them to the moving image information recording unit 13. (S1).

  Next, the moving image information recording unit 13 stores the moving image information MD in which the moving image is associated with the accelerations α1, α2, and α3 in the storage medium 6 (S2). For example, the moving image information recording unit 13 stores, in the storage medium 6, moving image information MD in which a partial moving image PMn obtained by dividing a moving image by unit time and accelerations α1, α2, and α3 divided by unit time are associated with each other.

  Next, when the automobile 5 stops, the moving image generating unit 11 ends the imaging and moving image generation. Further, the acceleration sensors 15, 16, and 17 end the detection of the accelerations α1, α2, and α3 (S3). Thereafter, the user removes the storage medium 6 from the moving image information recording unit 13 of the imaging device 2 when the user desires to reproduce the moving image.

  Next, the playback process of the playback device 3 will be described with reference to FIG. FIG. 6 is a flowchart for explaining the playback process of the playback device. First, the storage medium 6 removed from the imaging device 2 by the user is attached to the acquisition unit 21 of the playback device 3. Thereby, the acquisition unit 21 acquires the moving image information MD, and outputs the moving image information MD to the moving image extraction unit 23 (S11). Thereafter, the moving image extraction unit 23 sets the risk levels D1, D2, and D3 based on the accelerations α1, α2, and α3 included in the acquired moving image information MD (S12). Here, the moving image extraction unit 23 sets the absolute values of the accelerations α1, α2, and α3 as the risk levels D1, D2, and D3.

  Next, the moving image extraction unit 23 extracts a partial moving image PMn that is a part of the temporal length of the moving image included in the moving image information MD based on the risk levels D1, D2, and D3 (S13). Thereafter, the moving image extracting unit 23 outputs the extracted partial moving image PMn and the corresponding degrees of risk D1, D2, and D3 to the display unit 25 (S14).

  Next, as shown in FIG. 3, the display unit 25 displays one frame of the partial moving image PMn on the screen so that the partial moving image PMn input from the moving image extracting unit 23 can be reproduced, and the risk levels D1, D2, D3 is displayed (S15). Here, as shown by the dot area in FIG. 3, the display unit 25 displays the danger time DT, which is the time when the danger level D2 is equal to or higher than the danger threshold Th23, different from other times. Further, when the user selects one frame of the partial moving image PMn displayed on the display unit 25, the partial moving image PMn is reproduced on the screen as a moving image. Thus, the playback device 3 ends the playback process.

  Next, with reference to FIG. 7, the extraction process of the partial moving image PMn performed by the moving image extracting unit 23 in step S13 will be described. FIG. 7 is a flowchart illustrating the extraction process of the moving image extraction unit.

  First, as illustrated in FIG. 7, the moving image extraction unit 23 reads the extraction number AN, which is the number that the partial moving image PMn must be extracted at least, from the numerical value storage unit 22 (S21).

  Next, the moving image extraction unit 23 selects and reads the largest risk threshold Th11 from the risk threshold group Th1 stored in the numerical value storage unit 22. Thereafter, the moving image extraction unit 23 selects and extracts the largest danger threshold Th21 among the danger threshold groups Th2 stored in the numerical value storage unit 22 and the largest danger threshold Th31 among the danger threshold groups Th3 ( S22).

  Next, the moving image extraction unit 23 extracts a partial moving image PMn having a degree of risk D1 equal to or higher than the selected risk threshold Th11. In addition, the moving image extraction unit 23 extracts a partial moving image PMn having a risk level D2 equal to or higher than the selected risk threshold Th21 and a partial moving image PMn having a risk level D3 equal to or higher than the selected risk threshold Th31 (S23).

  Next, the moving image extraction unit 23 determines whether the number of extracted partial moving images PMn is equal to or greater than the extraction number AN (S24). If the moving image extracting unit 23 determines that the number of extracted partial moving images PMn is equal to or less than the extracted number AN (S24: No), the risk threshold values Th12, Th22, Th32, which are the next larger than the above-described risk threshold values Th11, Th21, Th31. Is selected from the numerical value storage unit 22 (S25). Thereafter, the moving image extraction unit 23 executes the processes of steps S23 and S24 again. Then, the moving image extraction unit 23 repeats steps S23 to S25 until the number of extracted partial moving images PMn becomes equal to or greater than the extraction number AN.

  If the moving image extraction unit 23 determines that the number of extracted partial moving images PMn is equal to or greater than the extraction number AN (S24: Yes), the extraction operation ends. Thereafter, the moving image extracting unit 23 executes Step S14 of FIG.

  Next, still image reproduction processing by the still image extraction unit 24 and the display unit 25 will be described.

  First, the still image extraction unit 24 extracts the still image SG1 within the danger time DT from the moving image information MD acquired by the acquisition unit 21. Here, the danger time DT is a time when the danger levels D1, D2, and D3 are equal to or higher than the danger threshold values Th1n, Th2n, and Th3n. Next, the still image extraction unit 24 extracts still images SG2 and SG3 at times before and after the danger time DT from the moving image information MD. Then, the still image extraction unit 24 outputs the extracted three still images SG1, SG2, and SG3 to the display unit 25. As shown in FIG. 4, the display unit 25 displays the three input still images SG2, SG1, and SG3 side by side in time series. Thereby, the reproduction process of the still image is completed.

  Next, the hardware configuration of the imaging device 2 will be described. FIG. 8 is a block diagram illustrating a hardware configuration of the imaging apparatus 2. As shown in FIG. 8, the imaging apparatus 2 includes an imaging computer 37 having a CPU 31, a ROM 32, a RAM 33, an input / output interface (hereinafter, input / output IF) 34, a medium slot 35, and an HDD 36. Yes.

  The CPU 31 operates based on programs and setting information stored in the ROM 32, RAM 33, and HDD 36. The program includes an imaging program for executing the imaging process described above.

  The input / output IF 34 is connected to the moving image generation unit 11 and the danger detection unit 12 so that information can be input / output. The medium slot 35 reads or records information on the storage medium 6 by the CPU 31.

  The imaging program is installed in the HDD 36 from a storage medium (not shown) such as a floppy (registered trademark) disk, CD-ROM, DVD-ROM or the like. The imaging program includes a moving image information recording module as a functional configuration. The processing that this module works on the CPU 31 is the same as the function and operation of the moving image information recording unit 13 of the imaging apparatus 2 in the present embodiment, and thus the description thereof is omitted.

  Note that the imaging program may be configured to be read directly from the storage medium such as a CD-ROM into the RAM 33 and executed. Further, the imaging program may be stored in a single storage medium or a plurality of storage media. The module stored in the HDD 36 or the storage medium may provide each function in cooperation with the operating system. For example, the operating system may be requested to perform some or all of the functions, and the functions may be provided based on a response from the operating system.

  Furthermore, the imaging program and the moving image information recording module may be stored in an external storage medium. Recording media include floppy (registered trademark) disks, CD-ROMs, optical storage media such as DVD or PD, magneto-optical storage media such as MD, tape media, magnetic storage media, IC cards, miniature cards, etc. A semiconductor memory or the like can be used. Alternatively, a storage device such as a hard disk drive or a RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a storage medium to provide the imaging program to the imaging device 2 via the communication network.

  Next, the hardware configuration of the playback device 3 will be described. FIG. 9 is a block diagram showing a hardware configuration of the playback device 3. As shown in FIG. 9, the playback apparatus 3 includes a playback computer 47 having a CPU 41, a ROM 42, a RAM 43, an input / output interface (hereinafter referred to as input / output IF) 44, a medium slot 45, and an HDD 46. Yes.

  The CPU 41 operates based on programs and setting information stored in the ROM 42, the RAM 43, and the HDD 46. The program includes a reproduction program for executing the reproduction process described above. The setting information includes the number of extractions AN and risk threshold values Th1n, Th2n, Th3n stored in the numerical value storage unit 22.

  The input / output IF 44 is connected to the display unit 25 so that information can be input / output. The medium slot 45 reads or records information on the storage medium 6 by the CPU 41.

  The reproduction program is installed in the HDD 46 from a storage medium (not shown) such as a floppy (registered trademark) disk, CD-ROM, DVD-ROM or the like.

  The reproduction program includes an acquisition module, a moving image extraction module, and a still image extraction module as functional configurations. The processing that this module works on the CPU 41 is the same as the functions and operations of the acquisition unit 21, the moving image extraction unit 23, and the still image extraction unit 24 of the playback device 3 in the present embodiment, and thus description thereof is omitted.

  Note that the reproduction program may be configured to be read directly from the storage medium such as a CD-ROM into the RAM 43 and executed. Further, the reproduction program may be stored in a single storage medium or in a plurality of storage media. The module stored in the HDD 46 or the storage medium may provide each function in cooperation with the operating system. For example, the operating system may be requested to perform some or all of the functions, and the functions may be provided based on a response from the operating system.

  Further, the reproduction program and each of the modules described above may be stored in an external storage medium. Recording media include floppy (registered trademark) disks, CD-ROMs, optical storage media such as DVD or PD, magneto-optical storage media such as MD, tape media, magnetic storage media, IC cards, miniature cards, etc. A semiconductor memory or the like can be used. Further, a storage device such as a hard disk drive or a RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a storage medium, and the playback program may be provided to the playback device 3 via the communication network.

  Next, the effect of the imaging reproduction system according to the above-described embodiment will be described.

  In the reproduction device 3 of the imaging reproduction system 1 according to the above-described embodiment, the moving image extraction unit 23 is based on the magnitudes of the risk degrees D1, D2, and D3 included in the moving image information MD acquired by the acquisition unit 21. PMn is extracted. As an example, the moving image extraction unit 23 extracts a partial moving image PMn in a time zone including a danger time DT in which the danger levels D1, D2, and D3 are greater than or equal to the danger threshold values Th1n, Th2n, and Th3n. Then, the display unit 25 displays the extracted partial video PMn. As a result, the user can view the dangerous time DT having a high degree of danger D1, D2, and D3 and the partial moving images PMn before and after that without viewing all the moving images of the moving image information MD. For this reason, the user can shorten the time for searching for a moving image in a dangerous driving state, which is a necessary moving image, and can efficiently view the moving image.

  In the playback device 3, the moving image extraction unit 23 extracts the partial moving image PMn based on the risk thresholds Th1n, Th2n, and Th3n from which the partial moving image PMn having the extraction number AN or more can be extracted. Thereby, since the moving image extraction part 23 extracts the partial moving image PMn more than extraction number AN, the user can see the partial moving image PMn with high risk D1, D2, and D3 reliably.

  In the reproducing apparatus 3, the display unit 25 displays the danger levels D1, D2, and D3 of the danger time DT so as to be different from the danger levels D1, D2, and D3 of other times. Thereby, the user can easily recognize the dangerous time DT.

  In the reproducing apparatus 3, the partial moving image PMn is reproduced on the display unit 25 in a state including moving images before and after the dangerous time DT. Thereby, the user can easily grasp the situation before and after the dangerous time DT.

  In the playback device 3, the still image extraction unit 24 extracts the dangerous time DT and the still images SG1, SG2, and SG3 before and after the danger time DT, and the still images SG1, SG2, and SG3 are displayed on the display unit 25. Thereby, the user can understand the situation of the dangerous time DT more clearly.

  Next, a modified example in which the extraction operation of the above-described embodiment is modified will be described with reference to FIG. FIG. 10 is a flowchart for explaining the extraction process of the moving image extraction unit according to the modification mode. In addition, the same code | symbol is attached | subjected to the structure similar to embodiment mentioned above, and description is abbreviate | omitted.

  The moving image extraction unit 23 of the playback device 3 according to this modification executes an extraction process for extracting the partial moving images PMn having the extraction number AN in descending order of the risk levels D1, D2, and D3. Hereinafter, an example of the extraction process will be described with reference to the flowchart of FIG.

  As shown in FIG. 10, the moving image extraction unit 23 reads the number of extractions AN stored in the numerical value storage unit 22 (S31). Next, the moving image extraction unit 23 rearranges the partial moving images PMn in the order of the danger levels D1, D2, and D3 (S32). After that, the moving image extraction unit 23 extracts the partial moving images PMn corresponding to the number of extractions AN in order from the partial moving images PMn having the highest degree of risk D1, D2, and D3. (S33). Next, the display unit 25 reproduces the partial moving image PMn extracted by the moving image extraction unit 23 as in the embodiment.

  In the playback device 3 according to this modification, the moving image extraction unit 23 extracts the partial moving images PMn of the extraction number AN in descending order of the risk levels D1, D2, and D3. Thereby, the user can see the same number, that is, the partial moving images PMn of the extracted number AN.

  Next, a modified example in which the extraction operation of the above-described embodiment is modified will be described. In addition, the same code | symbol is attached | subjected to the structure similar to embodiment mentioned above, and description is abbreviate | omitted.

  In the reproduction apparatus 3 according to this modified example, the risk levels include three types of risk levels D1, D2, and D3. Then, the moving image extraction unit 23 extracts the partial moving image PMn based on the risk levels D1, D2, and D3. Here, the moving image extraction unit 23 extracts the partial moving images PMn so that the risk numbers D1, D2, and D3 are the same.

  As an example, the moving image extraction unit 23 reads the extraction number AN (for example, 2) from the numerical value storage unit 22. Next, the moving image extraction unit 23 extracts partial moving images PMn having a high degree of risk D1 by the number of extractions AN. Thereafter, the moving image extraction unit 23 extracts partial moving images PMn having a high degree of risk D2 by the number of extractions AN. Finally, the moving image extraction unit 23 extracts partial moving images PMn having a high degree of risk D3 by the number of extractions AN. As a result, the same number (that is, the same extraction number AN) of the partial moving images PMn are extracted for each of the risk levels D1, D2, and D3. Thereafter, the extracted partial moving image PMn is reproduced by the display unit 25.

  In the reproduction apparatus 3 according to this modification, the moving image extraction unit 23 extracts the partial moving image PMn having the extraction number AN in each of the risk levels D1, D2, and D3. As a result, the user can see the partial moving image PMn having a large risk level D1, D2, D3 in all the risk levels D1, D2, D3.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

  Hereinafter, the form which changed a part of above-mentioned embodiment is demonstrated.

  The arrangement, connection relationship, numerical value, shape, and the like of the configuration of each embodiment may be changed as appropriate. Moreover, you may combine each embodiment.

  In the above-described embodiment, an example in which the present invention is applied to an imaging / playback system for automobiles has been described. However, an imaging / playback system for other vehicles such as a train may be used.

  Further, the playback apparatus is configured to play back all of the above-described one partial video, but the playback apparatus may be configured to play back a part of the partial video. For example, the playback apparatus may be configured to play back a partial video during a playback unit time including a dangerous time that is shorter than the time of the partial video, that is, the unit time. Further, the playback device may be configured to play back a partial moving image of a time including a certain time before and after the dangerous time.

  Moreover, you may combine embodiment and a modification. For example, based on the embodiment, the degree of danger is compared with the danger threshold value, and partial moving pictures greater than the number of extractions are extracted. Thereafter, the moving image extraction unit may be configured to rearrange the extracted partial moving images in descending order of the degree of risk and extract the partial moving images by the number of extractions in descending order of the degree of risk.

  In the above-described embodiment, the absolute value of acceleration is used as the degree of risk, but the time change rate of acceleration, the speed, or the like, or a combination thereof may be used as the degree of risk.

  In the above-described embodiment, the degree of risk is displayed on the display unit, but a risk value (for example, acceleration) or the like may be displayed instead of the degree of risk. Furthermore, the display method of the display unit is an example, and other information may be displayed.

DESCRIPTION OF SYMBOLS 1 Imaging / reproducing system 2 Imaging device 3 Reproducing apparatus 5 Car 6 Storage medium 11 Movie generation unit 12 Danger detection unit 13 Movie information recording unit 15 Vertical acceleration sensor 16 Longitudinal acceleration sensor 17 Horizontal acceleration sensor 21 Acquisition unit 22 Numerical storage unit 23 Movie extraction Unit 24 still image extraction unit 25 display unit 31 CPU
32 ROM
33 RAM
34 I / O IF
35 Media slot 36 HDD
37 Imaging Computer 41 CPU
42 ROM
43 RAM
44 I / O IF
45 Media slot 46 HDD
47 Playback computer SG1 Still image SG2 Still image SG3 Still image Th1 Danger threshold group Th2 Danger threshold group Th3 Danger threshold group Th1n Danger threshold Th2n Danger threshold Th3n Danger threshold α1 Vertical acceleration α2 Longitudinal acceleration α3 Lateral acceleration MD Movie information PMn Partial animation DT Danger time AN Extraction number D1 Danger level D2 Danger level D3 Danger level

Claims (12)

An acquisition unit that acquires moving image information that associates a moving image obtained by capturing an image of the outside world while the vehicle is traveling, and a risk value for determining a risk of traveling detected during the traveling of the vehicle;
A part of the time length of the moving image included in the moving image information based on the magnitude of the risk set based on the danger value included in the moving image information acquired by the acquiring unit A video extractor for extracting a partial video that is
A playback device comprising: a display unit that displays the partial video extracted by the video extraction unit on a screen in a reproducible manner. A numerical value storage unit in which the number of extractions and a plurality of risk threshold values are stored;
The moving image extracting unit selects a largest risk threshold from a plurality of risk thresholds among risk thresholds in which a partial video having the risk level equal to or greater than the risk threshold is equal to or greater than the number of extractions, and is equal to or greater than the selected risk threshold. The playback apparatus according to claim 1, wherein a partial moving image having the risk level is extracted. It further includes a numerical value storage unit in which the number of extractions is stored,
The playback apparatus according to claim 1, wherein the moving image extraction unit extracts the extracted number of partial moving images in order from the partial moving image having the highest degree of risk. The playback apparatus according to claim 2, wherein the partial moving image includes a moving image before and after a danger time in which the degree of risk is a time equal to or greater than any of the danger thresholds. The display unit displays the danger value or the danger level together with the partial video, and displays the danger value or the danger level of the danger time and the danger value or the danger level other than the danger time. The playback apparatus according to claim 4. The risk level includes a plurality of types of risk levels,
The said moving image extraction part is any one of Claims 1-5 which extracts a partial moving image so that the number of the partial moving images extracted based on the said multiple types of risk level may become the same number in each risk level. The playback device described in 1. It further includes a numerical value storage unit in which the danger threshold value is stored,
A still image extraction unit that extracts still images within a danger time in which the danger level is equal to or higher than the danger threshold, and still images before and after the danger time;
The playback device according to claim 1, wherein the display unit displays the extracted still images side by side. An imaging reproduction system including an imaging device that captures a moving image, and a reproduction device that reproduces the moving image captured by the imaging device,
The imaging device
A video generation unit that captures an image of the outside world while the vehicle is running and generates a video;
A danger detecting unit for detecting a danger value for judging the degree of danger of running while the vehicle is running;
A moving image information recording unit that records moving image information in which the moving image generated by the moving image generation unit is associated with the danger value detected by the danger detection unit;
The playback device
An acquisition unit for acquiring the video information;
A part of the time length of the moving image included in the moving image information based on the magnitude of the risk set based on the danger value included in the moving image information acquired by the acquiring unit A video extractor for extracting a partial video that is
An imaging reproduction system comprising: a display unit that displays the partial video extracted by the video extraction unit on a screen so as to be reproducible. Obtaining moving image information that associates a moving image obtained by capturing an image of the outside world while the vehicle is traveling, and a danger value for determining the degree of risk of traveling detected while the vehicle is traveling,
A partial moving image that is a part of the time length of the moving image included in the moving image information based on the degree of the risk set based on the danger value included in the acquired moving image information Extract
A reproduction method for displaying the extracted partial moving image on a screen in a reproducible manner. An imaging reproduction method for capturing a moving image and reproducing the captured moving image,
Create a video by capturing the outside world while the vehicle is running,
Detecting a danger value for judging the danger of running while the vehicle is running;
Record the moving image information that associates the generated moving image with the detected dangerous value,
Obtaining the video information,
A partial moving image that is a part of the time length of the moving image included in the moving image information based on the degree of the risk set based on the danger value included in the acquired moving image information Extract
An imaging reproduction method for displaying the extracted partial moving image on a screen in a reproducible manner. A video playback program for a computer, comprising:
A function of acquiring moving image information in which a moving image obtained by capturing an image of the outside world during traveling of the vehicle and a danger value for determining a traveling risk detected during traveling of the vehicle are associated with each other;
A partial moving image that is a part of the time length of the moving image included in the moving image information based on the degree of the risk set based on the danger value included in the acquired moving image information The function of extracting
A reproduction program for realizing a function of displaying the extracted partial moving image on a screen so as to be reproducible. A moving image imaging program for a computer, wherein the computer
A function to capture the outside world while the vehicle is running and generate a video,
A function of detecting a danger value for judging the degree of danger of running while the vehicle is running;
An imaging program for realizing a function of recording moving image information in which the generated moving image and the detected danger value are associated with each other.