JP3163705B2 - Intermittent image recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intermittent image recording apparatus for recording a low-speed image using an optical disk as a recording medium.

[0002]

2. Description of the Related Art Conventionally, time-lapse image recording has been performed in order to observe a phenomenon with a long time lapse in a short time. In this time-lapse image recording, for example, a time-lapse photographing apparatus using a silver halide film (movie film) as a recording medium,
Video tape recorders and the like using a magnetic tape having a long-time recording function and a time-lapse recording function as a recording medium are used.

[0003]

In a time-lapse photographing apparatus using a silver halide film as a recording medium, the photographed image cannot be viewed unless the photographing is completed and the film is developed. In addition, in a video tape recorder using a magnetic tape as a recording medium, although intermittent recording can be performed, the operation is too slow to arbitrarily return and reproduce the accumulated recorded video so far. Observation and analysis are difficult. In addition, if an operation of arbitrarily returning and playing back the recorded video during intermittent recording is performed,
It is extremely difficult to accurately return to the next intermittent recording frame, and it may not be possible to obtain a high-quality recording result. Furthermore, video tape recorders have poor durability and cannot be used for valuable recordings.

In general, illumination is performed when a subject is photographed. However, if low-speed image recording is performed, if the illumination is continuously performed for a long time, the subject may be deteriorated by light depending on the observation target. There is.

In view of the above-mentioned conventional problems, the present invention automatically reproduces the image information of a predetermined frame that has been recorded by utilizing an idle time (interval) of intermittent recording. An intermittent image recording apparatus capable of confirming a recording process is provided. Another object of the present invention is to provide an intermittent image recording apparatus including an illumination mechanism capable of arbitrarily setting an illumination time for a subject.

[0006]

In order to solve the above-mentioned problems, an intermittent image recording apparatus according to the present invention records image information of a subject captured by an image capturing means on an optical disk one frame at a time interval. A recording unit, a time interval setting unit for setting a time interval for recording image information of a subject on an optical disc by the recording unit, and a reproduction operation for a predetermined frame whose time interval set in advance by the time interval setting unit is possible. A reproduction unit that reproduces the latest image information of the predetermined frame from the optical disc during a period from the end of recording by the recording unit to the start of the next recording when the recording is performed for a predetermined time or more. And

Further, an intermittent image recording apparatus according to the present invention comprises:
When the time set by the time interval setting means has elapsed, the lighting means for irradiating the subject with light, and an irradiation time setting means for setting a light irradiation time by the lighting means, The object is illuminated by the illumination means for a time set by the irradiation time setting means in synchronization with the recording operation timing.

[0008]

In the intermittent image recording apparatus according to the present invention, the image information of the subject imaged by the imaging means is recorded on the optical disk one frame at a time at a predetermined time interval set by the time interval setting means. When the time interval set in advance by the time interval setting means is equal to or longer than a certain time during which a reproducing operation for a certain frame is possible, the reproducing means starts the next recording after the recording by the recording means. Until the start, the latest image information of the certain frame is reproduced from the optical disk.

Further, in the intermittent image recording apparatus according to the present invention, the subject is illuminated by the illumination means for the time set by the irradiation time setting means in synchronization with the recording operation timing of the recording means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an intermittent image recording apparatus according to the present invention will be described below in detail with reference to the drawings. The intermittent image recording apparatus according to the present invention is configured, for example, as shown in the block diagram of FIG.

The intermittent image recording apparatus shown in FIG. 1 includes a video camera 1 for capturing an image of a subject, an illuminating device 2 for illuminating the subject, and a write-once type video disc recording / reproducing for recording the output of the video camera 1 on an optical disc 11. The apparatus comprises an illumination controller 3, a monitor television apparatus 4, and a video printer 5 connected to the write-once type video disk recording / reproducing apparatus 10.

The video camera 1 captures an image of a subject illuminated by the illumination device 2 and supplies the captured output to the write-once type video disk recording / reproducing device 10. The illumination time of the illumination device 2 is controlled by the illumination controller 3.

The write-once type video disk recording / reproducing apparatus 10 includes a disk motor 12 for rotating the optical disk 11, an optical head 13 for optically scanning recording tracks of the optical disk 11, and an optical head 13 for connecting the optical head 13 to the optical disk 11. Head motor 14, which moves on the radius of
An interface circuit 16 including a servo control circuit 15 for controlling the drive of the disk motor 12 and the head motor 14, and the video camera 1, the lighting controller 3, the monitor television device 4, the video printer device 5, and the like; It comprises a recording signal processing circuit 17, a reproduction signal processing circuit 18, and a system controller 19 internally connected to the interface circuit 16, and an operation unit 20 and a display unit 21 connected to the system controller 19.

This write-once type video disk recording / reproducing apparatus 1
0, the recording signal processing circuit 17 performs signal processing necessary for recording image information on the write-once optical disc 11 from the video camera 1 to the interface 16.
To the image signal of the subject supplied via the An image signal of the subject, which has been subjected to predetermined signal processing by the recording signal processing circuit 17, is supplied to the optical head 13 frame by frame and recorded on the optical disk 11.

The reproduction signal processing circuit 18 reproduces a video signal of a predetermined standard television system by performing predetermined signal processing on a reproduction signal reproduced from the optical disk 11 by the optical head 13. A video signal obtained by the reproduction signal processing circuit 18 is supplied to the monitor television device 4, the video printer device 5, and the like via the interface 16.

Further, the system controller 19
Is based on the control information set by the operation of the operation unit 20, for example, as shown in the flowchart of FIG.
In addition to controlling the operation of the servo control circuit 15, controlling the operation of the recording signal processing circuit 17 and the reproduction signal processing circuit 18, and controlling the operation of the illumination controller 3 and the like via the interface circuit 16. Has become.

That is, the system controller 19
First performs determination processing of whether a whether a intermittent recording mode in step S _1. The determination result of step S ₁ "N
When O "or not in the intermittent recording mode, after performing normal processing mode of the processing operation proceeds to step S _2, it is determined whether or not processing has been interval set moves to step S _3. Further, if the determination result of step S ₁ is "YES", that is the intermittent recording mode, it is determined whether or not the processing has passed the set time T _S proceeds to step S _4.

[0018] In the step S _3, the determination result is not set "NO" or interval, the process returns to step S _1. Thus, steps S ₁ , S ₂ , and S ₃ are repeated to wait for an interval setting input by operating the ten keys of the operation unit 20. Then, after the setting of the illumination time T _L is performed by the ten key operation of the operation unit 20, the numeric keypad is operated accepting setting input of the recording interval T _R, the determination result is "YES", the proceeds to step S _4. When receiving the setting input of the recording interval T _R, it is the intermittent recording mode thereafter. In addition,
When the setting operation of the recording interval T _R, to set whether the automatic reproduction mode.

Further, in the step S _4, it performs the elapsed time is whether exceeds the set time T _S determination process from the determination result at Step S ₃ is "YES", the determination result is " when the nO ", that has not passed the set time T _S, the process returns to step S _1. By repeating the above steps S ₁ and S ₄ , it waits for the set time T _S to elapse. Here, the set time T _S is:
As shown in FIG. 3, the recording interval T _R and the illumination time T _L and 1 frame image recording period T _F from T _S = T _R - given by (T _L -T _F).

[0020] When the determination result in the step S ₄ has passed the "YES" or set time T _S, the procedure proceeds to step S _5, is lit the illumination device 2 controls the lighting controller 3, a recording standby state Becomes

In the next step S ₆ , the above step S ₅
In the above, a process of determining whether or not the elapsed time from turning on the lighting device 2 exceeds the lighting time _TL is performed. If the determination result is “NO”, that is, if the lighting time _TL has not elapsed, by repeating the determination process in step S _6, waits for the elapse of the lighting time T _L. When the determination result in step S ₆ has passed the "YES" or the illumination time T _L, the procedure proceeds to step S _7,
The recording system is controlled to record one frame of image information, and the lighting controller 3 is controlled to turn off the lighting device 2.

In the next step S ₈ , step S ₃
A determination process is performed to determine whether or not the recording interval T _R set in is longer than 6 seconds, and the determination result is “NO”.
That is, when the recording interval T _R is less than 6 seconds, immediately returns to step S _1, shifts to control operation of the next recording interval. Further, when the result of judgment in step S ₈ is "YES", i.e. the recording interval T _R is over 6 seconds, move from making preparations for playback operation at step S ₉ to step S _10.

[0023] In the above step S _10, the step S ₃
A determination is made as to whether or not the automatic playback mode has been set. When the result of judgment in step S ₁₀ is "NO", that automatic reproduction mode is not set, the recording standby state immediately preceding frame moves to step S ₁₁ reproduces a still image, to the step S ₁ return,
The operation proceeds to the control operation for the next recording interval. Further, when the result of judgment in step S ₁₀ is "YES", that automatic reproduction mode is set, the process proceeds to step S _12.

[0024] At step S _12, the recording interval T _R, which is set in step 3 performs the determination processing of whether or not more than 12 seconds. And this step S
If the determination result in ₁₂ is "NO", that is the recording interval T _R is less than 12 seconds, the step S ₁₃
After image reproduction on the latest 50 frames moved to, returns to step S _1, shifts to control operation of the next recording interval. The determination result in step S ₁₂ is "Y
When ES "that is, the recording interval T _R is greater than or equal to 12 seconds, from the image reproducing the latest 230 frames proceeds to step S _14, the routine returns to step S _1, the control operation of the next recording interval Move on.

In such an intermittent image recording apparatus,
By performing the intermittent recording of the image information using the optical disk 11 capable of high-speed access as a recording medium, the recorded image information can be reproduced using the idle time (recording interval) of the intermittent recording. During the recording, observation can be performed at any time, and the imaging conditions and the subject can be changed, and the possibility of failure of the recording is extremely small.
In addition, the operation of the illumination device 2 for illuminating the subject is synchronized with the intermittent recording operation of the image information in the recording system, and the illumination time _TL can be set arbitrarily. For example, a subject that is likely to be degraded by illumination light, such as observation of a subject, can also be observed by time-lapse image recording.

[0026]

As is clear from the above description, in the intermittent image recording apparatus according to the present invention, the image information of the subject imaged by the image pickup means is transferred by one frame at a predetermined time interval set by the time interval setting means. By recording on the optical disc one by one, a time-lapse image can be recorded, and when the time interval set in advance by the time interval setting means is equal to or longer than a certain time at which a reproducing operation for a certain frame can be performed. Since the latest image information for the predetermined frame is reproduced from the optical disc during a period from the end of recording by the recording means to the start of the next recording, the recording process can be checked at any time. Therefore, it is possible to perform observation at any time while recording is in progress, change imaging conditions and subjects, and provide an intermittent image recording apparatus with extremely low possibility of recording failure.

In the intermittent image recording apparatus according to the present invention, the object is illuminated by the illumination means for the time set by the irradiation time setting means in synchronization with the recording operation timing of the recording means. It can be set arbitrarily. Therefore, with this intermittent image recording apparatus, it is possible to observe by flash recording an object that may be degraded by illumination light, such as observation of a cell tissue that is killed by light.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an intermittent image recording apparatus according to the present invention.

FIG. 2 is a flowchart showing the operation of the intermittent image recording device.

FIG. 3 is a timing chart showing the operation of the intermittent image recording device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Video camera 2 ... Illumination device 3 ... Illumination controller 4 ... Monitor television receiver 5 ... Video printer 10 ... Write-once optical disk recording / reproducing device 11 ... Optical disk 13. ..Optical head 15 ... Servo control circuit 16 ... Interface circuit 17 ... Recording signal processing circuit 18 ... Reproduction signal processing circuit 19 ... System controller 20 ... Operation unit 21 ... Display Department

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04N 5/76-5/937 G11B 7/00

Claims (2)

(57) [Claims] 1. A recording means for recording image information of a subject imaged by an imaging means on an optical disc at predetermined time intervals on a frame basis, and a time for setting a time interval for recording image information of the subject on the optical disc by the recording means. When the time interval preset by the interval setting means and the time interval set by the time interval setting means is equal to or longer than a predetermined time capable of performing a reproduction operation for a predetermined frame, the next recording starts after the recording by the recording means is completed. And a reproducing unit for reproducing the latest image information of the certain frame from the optical disk during the period up to. 2. An illumination unit for irradiating a subject with light when the time set by the time interval setting unit has elapsed, and an irradiation time setting unit for setting an irradiation time of light by the illumination unit. 2. An intermittent image recording apparatus according to claim 1, wherein the illumination unit illuminates the subject for a time set by the irradiation time setting unit in synchronization with a recording operation timing of the recording unit.