Imaging device, imaging method, and image processing device generating a complex sensor image
AssigneeHitachi, Ltd.
InventorsYusuke Nakamura, Kazuyuki Tajima, Keita Yamaguchi
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Abstract
An imaging device includes: a modulator configured to modulate the intensity of light, based on a grating pattern; an image sensor configured to convert light passing through the modulator to electrical signals to generate a sensor image; a complex sensor image processing unit configured to generate, from the sensor image, a complex sensor image comprising a complex number; and a data transmission unit configured to transmit the complex sensor image.
Claims15
An imaging device comprising;
- a modulator configured to modulate an intensity of light, based on a grating pattern;
- an image sensor configured to convert light passing through the modulator to electrical signals to generate a sensor image;
- a complex sensor image processing unit configured to generate, from the sensor image, a complex sensor image comprising a complex number;
- and
- a data transmission unit configured to transmit the complex sensor image,
- wherein the complex sensor image processing unit generates the complex sensor image, based on the following formula:
- I
- CF
-
- (
- x
- )
- =
- 1
- 2
-
- ∑
- Φ
-
-
- I
- F
-
- (
- x
- )
- ·
- exp
-
- (
- i
-
-
- Φ
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- .
An image processing device configured to communicate with an imaging device,
- wherein the imaging device comprises a modulator configured to modulate an intensity of light, based on a first grating pattern, an image sensor configured to convert light passing through the modulator to electrical signals to generate a sensor image, a complex sensor image processing unit configured to generate, from the sensor image, a complex sensor image comprising a complex number, and a data transmission unit configured to transmit the complex sensor image, and
- the image processing device comprises:
- a data reception unit configured to receive the complex sensor image;
- and
- an image processing unit configured to restore an image, based on an operation with the complex sensor image and data of a second grating pattern,
- wherein the complex sensor image processing unit generates the complex sensor image, based on the following formula
- I
- CF
-
- (
- x
- )
- =
- 1
- 2
-
- ∑
- Φ
-
-
- I
- F
-
- (
- x
- )
- ·
- exp
-
- (
- i
-
-
- Φ
- )
- .
An imaging device comprising:
- a modulator configured to modulate an intensity of light, based on a first grating pattern;
- an image sensor configured to convert light passing through the modulator to electrical signals to generate a sensor image;
- a complex sensor image processing unit configured to generate, from the sensor image, a complex sensor image comprising a complex number;
- and
- an image processing unit configured to restore an image, based on an operation with the complex sensor image and data of a second grating pattern,
- wherein the complex sensor image processing unit generates the complex sensor image, based on the following formula
- I
- CF
-
- (
- x
- )
- =
- 1
- 2
-
- ∑
- Φ
-
-
- I
- F
-
- (
- x
- )
- ·
- exp
-
- (
- i
-
-
- Φ
- )
- .
An imaging method comprising:
- a modulating step of modulating an intensity of light, based on a first grating pattern;
- an image generating step of converting the modulated light to electrical signals to generate a sensor image;
- a complex sensor image processing step of generating, from the sensor image, a complex sensor image comprising a complex number;
- and
- a data transmitting step of transmitting the complex sensor image,
- wherein based on the following formula, the complex sensor image is generated in the complex sensor image processing step
- I
- CF
-
- (
- x
- )
- =
- 1
- 2
-
- ∑
- Φ
-
-
- I
- F
-
- (
- x
- )
- ·
- exp
-
- (
- i
-
-
- Φ
- )
- .
Dependencies are inferred from the claim text.