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Smear correction method, and solid-state image pickup apparatus and image pickup device which use same

A solid-state imaging device and blur correction technology, applied in image communication, color TV components, TV system components, etc., can solve problems such as blur removal and slow readout of photographic information

Inactive Publication Date: 2011-02-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, since the conventional example above uses two horizontal registers as the transfer path, it is difficult to properly remove blur due to the influence of the characteristics of the transfer path.
Furthermore, since it is a two-line simultaneous readout type solid-state imaging device that reads two lines at the same time and outputs imaging information of all pixels for each field, the imaging information of all pixels is alternately output in each of the two lines. , so the readout speed of photographic information is slow

Method used

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  • Smear correction method, and solid-state image pickup apparatus and image pickup device which use same
  • Smear correction method, and solid-state image pickup apparatus and image pickup device which use same
  • Smear correction method, and solid-state image pickup apparatus and image pickup device which use same

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Embodiment approach 1

[0044] figure 1 It is a configuration diagram of main parts of the solid-state imaging device according to Embodiment 1 of the present invention. For simplicity of description, only the light receiving elements 1 of the solid-state imaging device 100 in a vertical row and the vertical registers 2 in a vertical row are shown. In an actual solid-state imaging device 100 , the light receiving elements 1 and the vertical registers 2 are arranged in a plurality of columns so that the light receiving elements 1 form a matrix.

[0045] exist figure 1 Among them, four light-receiving elements 1 are arranged vertically. The vertical registers 2 are arranged twice as many as the number of light receiving elements 1, and are connected to the horizontal registers 3 at their lower ends. Charges are generated when light is irradiated onto the light receiving element 1 . The charges generated by the light-receiving element 1 are generated by figure 1 The transport unit 6 indicated by...

Embodiment approach 2

[0062] Next, Embodiment 2 of the present invention will be described. The imaging device according to Embodiment 2 of the present invention is characterized in that, depending on the saturation state of the light receiving element, switching is performed between the activation of the blur correction mode for correcting blur caused by a high-brightness light source, and the activation of saturated pixels. A high dynamic range mode that increases the sharpness of the reduction more.

[0063] Image 6 It is a configuration diagram of main parts of an imaging device according to Embodiment 2 of the present invention. exist Image 6 Among them, the imaging device 210 includes: an imaging element 41 that alternately outputs two kinds of image signals with different exposure amounts during one field period during normal exposure and short-term exposure; The processing unit 42 ; the mode switching unit 51 for switching the mode based on a determination result of whether the number ...

Embodiment approach 3

[0072] Next, Embodiment 3 of the present invention will be described. The imaging device according to Embodiment 3 of the present invention is characterized in that it uses a vertical register having three times or more the number of transfer stages than usual, and only transfers the charge of the light-receiving element during normal exposure and does not transfer the charge from the light-receiving element. Blurred charge and charge of the light receiving element during short-time exposure, blur correction and high dynamic range processing are performed simultaneously using each imaging element that outputs image signals and its signal. In addition, here, the case of using a general 3 times vertical CCD having 3 times the number of transfer stages will be described.

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Abstract

Provided is a smear correction method provided with a multiple-fold vertical CCD, a vertical transfer unit for alternately transferring a first signal composed of a smear signal and an image signal and a second signal composed of only a smear signal to each of vertical resisters, a horizontal transfer unit for alternately outputting the first signal and the second signal from a horizontal register, and a signal subtraction unit for subtracting the second signal from the first signal to obtain the image signal that does not include the smear signal by subtracting the second signal from the first signal.

Description

technical field [0001] The present invention relates to a solid-state imaging device, a simia correction method, and an imaging device using the method, and in particular, to a solid-state imaging device with a blur correction function, a simia correction method for the solid-state imaging device, and an imaging device using the method. Background technique [0002] In an imaging device using a solid-state imaging device such as a CCD (Charge Coupled decvice, charge-coupled device) image sensor, blur occurs when light directly enters the vertical register. Therefore, in order to remove blurring, there is known a two-line simultaneous readout type that simultaneously reads out two lines of imaging charges transferred via the vertical transfer section via two horizontal transfer sections, and outputs imaging information for all pixels in each field. A method of a solid-state imaging device (for example, refer to Patent Document 1). [0003] This is a method in which the imagi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/335H04N5/341H04N5/359H04N5/372H04N25/00
CPCH04N5/3595H04N5/35581H04N5/335H04N25/00H04N25/589H04N25/625
Inventor 西泽真人三宅一永
Owner PANASONIC CORP