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Image capturing device, image capturing method, electronic instrument, and signal processing device

Technology of an imaging device and a signal processing unit

Active Publication Date: 2019-08-23
SONY SEMICON SOLUTIONS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] By the way, even if the gain value of the image sensor can be finely adjusted, when the optimal setting value corresponding to all the adjusted values ​​is stored in the storage element, the amount becomes huge

Method used

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  • Image capturing device, image capturing method, electronic instrument, and signal processing device
  • Image capturing device, image capturing method, electronic instrument, and signal processing device
  • Image capturing device, image capturing method, electronic instrument, and signal processing device

Examples

Experimental program
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no. 1 approach

[0091] The imaging device of the present disclosure realizes correction based on a gain value and correction based on a temperature value while suppressing the number of set values ​​held in a storage element. Here, will refer to Image 6 A first embodiment of the image forming apparatus of the present disclosure is described.

[0092] Image 6 The imaging device 1 includes an image sensor 31 , an image processing unit 32 , an image sensor gain value acquisition unit 33 , an image sensor temperature value acquisition unit 34 and a signal processing unit 35 .

[0093] The image sensor 31 includes a complementary metal oxide semiconductor (CMOS), a charge-coupled device (CCD), or the like, generates charges by photoelectric conversion in units of pixels according to the amount of incident light, and will include an image based on pixel signals of the generated charges. Provided to the signal processing unit 35.

[0094] The image processing unit 32 performs predetermined proc...

Embodiment approach

[0148] In the above description, an example in which one signal processing unit 35 is provided has been described. However, there may be a plurality of signal processing units. In the case where different offset values ​​correspond to respective image sensor temperature values, interpolation processing corresponding to the respective values ​​may be performed.

[0149] Figure 10 An example of the imaging device 1 in the case where a plurality of signal processing units 35 are provided is shown.

[0150] Figure 10 The imaging device 1 includes an image sensor 31, image processing units 32-1 to 32-3, and signal processing units 35-1 and 35-2. The image processing units 32 - 1 to 32 - 3 have the same configuration as that of the image processing unit 32 , and the signal processing units 35 - 1 and 35 - 2 have the same configuration as that of the signal processing unit 35 .

[0151]More specifically, the image processing unit 32-1 performs predetermined image processing on ...

no. 4 approach

[0164] In the above description, an example has been described in which interpolation processing using different offsets is performed when there are a plurality of signal processing units 35 and different offsets correspond to respective temperature values. However, when the offset of one signal processing unit 35 is a constant multiple of the offset of the other signal processing unit 35, the other signal processing unit 35 may multiply the offset of one signal processing unit 35 by a constant, and The resulting value is used as an offset for another signal processing unit 35 .

[0165] Figure 11 A configuration example of the imaging device 1 in which one offset is multiplied by a constant and used as the other offset when a plurality of signal processing units 35 are provided is shown. It should be pointed out that, Figure 11 The imaging device 1 with Figure 10 The configuration of the imaging device 1 is different in that a multiplication unit 101 and a memory 102 st...

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Abstract

The present invention relates to an image capturing device, an image capturing method, an electronic instrument and a signal processing device which make it possible to reduce an amount of informationof set values to be stored, and an amount of interpolation calculations thereof, in an image processing block which reduces noise in accordance with an amount of noise. According to the present invention, an image captured by an image sensor is subjected to signal processing on the basis of a gain value of the image sensor, offset in accordance with a temperature value of the image sensor. This invention is applicable to image capturing devices.

Description

technical field [0001] The present technology relates to an imaging device, an imaging method, an electronic device, and a signal processing device, and in particular, to an imaging device capable of reducing the amount of storage of set values ​​and the amount of interpolation operations thereof relative to a configuration that reduces noise according to the amount of noise , imaging method, electronic equipment and signal processing device. Background technique [0002] Processing such as noise reduction (NR), image sharpening, pixel defect correction, etc. needs to be adjusted according to the amount of image noise or pixel defects to obtain high image quality image output. For example, when the amount of noise is large, the strength of NR increases and the strength of sharpening processing weakens. Also, when the amount of noise is small, adjustments are made to weaken NR strength and enhance sharpening. [0003] It is well known that the increase and decrease of the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G03B7/091H04N5/243H04N5/357H04N23/76
CPCG03B7/091H04N23/60H04N23/76H04N23/10H04N23/80H04N25/68
Inventor 藤本昌胜
Owner SONY SEMICON SOLUTIONS CORP
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