Solid state imaging device, calculating device, and calculating program
First Claim
1. A solid state imaging device, comprising:
- a first imaging device includinga first optical system,a first imaging unit provided between the first optical system and an imaging position of the first optical system, the first imaging unit including a plurality of imaging pixels, anda second optical system provided between the first optical system and the first imaging unit, the second optical system including a first microlens array;
a second imaging device provided to be separated from the first imaging device, the second imaging device includinga third optical system,a second imaging unit provided between the third optical system and an imaging position of the third optical system, the second imaging unit including a plurality of imaging pixels, anda fourth optical system provided between the third optical system and the second imaging unit, the fourth optical system including a second microlens array; and
a calculating unit configured to perform a first calculation and a second calculation, the first calculation including deriving a first distance from stereo disparity using a first image signal and a second image signal, the first image signal being of an object as obtained by the first imaging device, the second image signal being of the object as obtained by the second imaging device, the second calculation including deriving a second distance from a parallax image obtained via at least one selected from the first microlens array and the second microlens array, the calculating unit being configured to estimate a target distance based on at least one selected from the first distance and the second distance, whereinthe calculating unit is configured to adopt the first distance as the target distance in response to the first distance exceeding a threshold, and adopt the second distance as the target distance in response to the first distance not being more than the threshold.
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Abstract
According to one embodiment, a solid state imaging device includes a first imaging device, a second imaging device, and a calculating unit. The first imaging device includes a first optical system, a first imaging unit, and a second optical system provided between the first optical system and the first imaging unit. The second imaging device includes a third optical system, a second imaging unit, and a fourth optical system provided between the third optical system and the second imaging unit. The calculating unit is configured to perform a first calculation and a second calculation. The first calculation includes deriving a first distance from stereo disparity. The second calculation includes deriving a second distance from a parallax image. The calculating unit is configured to estimate a target distance based on at least one selected from the first distance and the second distance.
24 Citations
17 Claims
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1. A solid state imaging device, comprising:
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a first imaging device including a first optical system, a first imaging unit provided between the first optical system and an imaging position of the first optical system, the first imaging unit including a plurality of imaging pixels, and a second optical system provided between the first optical system and the first imaging unit, the second optical system including a first microlens array; a second imaging device provided to be separated from the first imaging device, the second imaging device including a third optical system, a second imaging unit provided between the third optical system and an imaging position of the third optical system, the second imaging unit including a plurality of imaging pixels, and a fourth optical system provided between the third optical system and the second imaging unit, the fourth optical system including a second microlens array; and a calculating unit configured to perform a first calculation and a second calculation, the first calculation including deriving a first distance from stereo disparity using a first image signal and a second image signal, the first image signal being of an object as obtained by the first imaging device, the second image signal being of the object as obtained by the second imaging device, the second calculation including deriving a second distance from a parallax image obtained via at least one selected from the first microlens array and the second microlens array, the calculating unit being configured to estimate a target distance based on at least one selected from the first distance and the second distance, wherein the calculating unit is configured to adopt the first distance as the target distance in response to the first distance exceeding a threshold, and adopt the second distance as the target distance in response to the first distance not being more than the threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A calculating device comprising:
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calculating circuitry configured to perform a first calculation and a second calculation, the first calculation including deriving a first distance from stereo disparity using a first image signal and a second image signal, the first image signal being of an object obtained by a first imaging device, the second image signal being of the object obtained by a second imaging device, and the second calculation including deriving a second distance from a parallax image obtained via at least one selected from a first microlens array and a second microlens array, the calculating circuitry being configured to adopt the first distance as a target distance in response to the first distance exceeding a threshold, and adopt the second distance as the target distance in response to the first distance not being more than the threshold, the first imaging device including; a first optical system; a first imaging unit, implemented by circuitry, provided between the first optical system and an imaging position of the first optical system, the first imaging unit including a plurality of imaging pixels; and a second optical system provided between the first optical system and the first imaging unit, the second optical system including the first microlens array, the second imaging device being provided to be separated from the first imaging device and including; a third optical system; a second imaging unit, implemented by the circuitry, provided between the third optical system and an imaging position of the third optical system, the second imaging unit including a plurality of imaging pixels; and a fourth optical system provided between the third optical system and the second imaging unit, the fourth optical system including the second microlens array. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A non-transitory computer-readable medium including computer executable instructions, wherein the instructions, when executed by a computer, cause the computer to perform a method, the method comprising:
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performing a first calculation including deriving a first distance from stereo disparity using a first image signal and a second image signal, the first image signal being of an object obtained by a first imaging device, the second image signal being of the object obtained by a second imaging device; performing a second calculation including deriving a second distance from a parallax image obtained via at least one selected from a first microlens array and a second microlens array; and adopting the first distance as a target distance in response to the first distance exceeding a threshold, and adopting the second distance as the target distance in response to the first distance not being more than the threshold, the first imaging device including; a first optical system; a first imaging unit, implemented by circuitry, provided between the first optical system and an imaging position of the first optical system, the first imaging unit including a plurality of imaging pixels; and a second optical system provided between the first optical system and the first imaging unit, the second optical system including the first microlens array, the second imaging device being provided to be separated from the first imaging device and including; a third optical system; a second imaging unit, implemented by the circuitry, provided between the third optical system and an imaging position of the third optical system, the second imaging unit including a plurality of imaging pixels; and a fourth optical system provided between the third optical system and the second imaging unit, the fourth optical system including the second microlens array.
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Specification