Claims
- 1. A solid-state imaging apparatus, comprising:
- a fast driving means that drives a solid-state imaging device at a high speed for a charge accumulation time for one screen in the solid-state imaging device obtaining a signal which can be displayed as an independent screen; that is, for one of time intervals corresponding to a plurality of divisions of a one-field period in a television signal mode, so as to obtain a pixel output which can be displayed as an independent screen in every time interval;
- a fast transfer means for transferring pixel outputs of said solid-state imaging device at a high speed;
- a memory means in which image signals sent from said fast transfer means are stored screen by screen;
- a selection output control means that reads the image signals stored screen by screen in said memory means by converting the time bases into the one for a one-field period in said television signal mode, and automatically selects for output one or more of the plurality of read image signals depending on a state of a subject; and
- an adding means for adding the image signals selected by said selection output control means and providing an output image signal.
- 2. A solid-state imaging apparatus according to claim 1, wherein said fast driving means drives a solid-state imaging device at a high speed for the charge accumulation time for one screen that is 1/n (where, n is an integer equal to or larger than 2) of a one-field period in the television signal mode.
- 3. A solid-state imaging apparatus according to claim 1, wherein said memory means includes field memories which in number are double the number of divisions of a drive time, that is, double a result of division of said one-field period in the television signal mode by the charge accumulation time for one screen in the solid-state imaging device driven by said fast driving means, and stores the image signals, which have been sent from said fast transfer means, screen by screen sequentially in the respective field memories; and
- said selection output control means reads image signals stored screen by screen in said field memories simultaneously at intervals of each division of said drive time by converting the time bases into the one for said one-field period in the television signal mode, and selectively outputs the plurality of read image signals depending on said state of a subject.
- 4. A solid-state imaging apparatus according to claim 3, further comprising an image state identification means for identifying a state of a subject image based on the image signals acquired from pixel outputs of said solid-state imaging device by computing whether motion of the subject image is below a predetermined minimum motion, between the predetermined minimum motion and a predetermined maximum motion, or above said predetermined maximum motion, wherein said selection output control means selectively outputs said image signals read simultaneously from said field memories at intervals of each division of said drive time according to a subject's motion, so that when a subject makes a motion which is determined by said image state identification means to be less than said predetermined minimum motion, all of said image signals will be selected and output; when a subject makes a motion which is determined by said image state identification means to be greater than said predetermined maximum motion, only one of said image signals will be selected and output; and when a subject makes a motion which is determined by said image state identification means to be intermediate between said predetermined maximum motion and said predetermined minimum motion, a number of signals corresponding to a quantity representing the subject's motion are selected and output.
- 5. A solid-state imaging apparatus according to claim 3, wherein said selection output control means inputs a control mode change signal, which can represent a plurality of control modes associated with states of a subject, from an external unit, and selectively outputs the image signals read simultaneously from said field memories at intervals of each division of said drive time according to the control mode specified by the control mode change signal.
- 6. A solid-state imaging apparatus according to claim 3, further comprising an image state identification means for identifying a state of a subject image based on the image signals acquired from pixel outputs of said solid-state imaging device;
- said selection output control means selectively outputting the image signals, which have been read from said field memories simultaneously at intervals of each division of said drive time, depending on said state of a subject which is detected by said image state identification means.
- 7. A solid-state imaging apparatus according to claim 6, wherein said image state identification means includes an encoding means that inputs image signals acquired from pixel outputs of said solid-state imaging device by distributing the signals, which have been acquired for each said charge accumulation time for one screen in the solid-state imaging device driven by said fast driving means, into a plurality of memory systems time-sequentially, and encodes the image signals of the respective memory systems to produce encoded image signals which represent the level shifts in the respective ones of said plurality of memory systems;
- a comparing means for comparing and correlating among the encoded signals output by the memory systems of the encoding means; and
- a quantifying means that quantifies the compared output of said comparing means and outputs an image-state detected signal representing a quantity of movement in a subject image.
- 8. A solid-state imaging apparatus according to claim 7, wherein said image state identification means includes a plurality of field memories in which image signals acquired from pixel outputs of said solid-state imaging-device are stored screen by screen sequentially; and
- said image state identification means reads image signals simultaneously from the plurality of field memories, supplies the image signals to said encoding means, and then generates a signal representing a quantity of movement in a subject image.
- 9. A solid-state imaging apparatus according to claim 7, wherein said image state identification means is connected to the output terminals of a plurality of field memories constituting said memory means, supplies the image signals read from the plurality of field memories to said encoding means, and then generates a signal representing a quantity of movement in a subject image.
Priority Claims (2)
Number |
Date |
Country |
Kind |
4-111812 |
Apr 1992 |
JPX |
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5-084923 |
Apr 1993 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 08/052,909 filed Apr. 27, 1993, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
63-98286 |
Apr 1988 |
JPX |
Continuations (1)
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Number |
Date |
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Parent |
52909 |
Apr 1993 |
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