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US 12,641,337 B2Granted
Information processing device, imaging device, information processing method, and program
AssigneeFUJIFILM Corporation
InventorsTomonori Masuda, Kenkichi Hayashi
Life of this patent
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Abstract
A processor measures a first distance to an object in a distance measurement target region on the basis of an irradiation timing when a light irradiator performs surface irradiation on the distance measurement target region with light and a light receiving timing when a light receiver receives reflected light of the light from distance measurement target region. In a case in which a specific pixel included in the light receiver generates a plurality of signals at different timings within a light receiving period corresponding to the surface irradiation by the light irradiator, the processor measures the first distance on the basis of a relationship between the plurality of signals.
Claims21
An information processing device comprising:
- a processor;
- and
- a memory that is connected to or provided in the processor,
- wherein the processor is configured to:
- measure a first distance to an object in a distance measurement target region on the basis of an irradiation timing when a light irradiator performs surface irradiation on the distance measurement target region with light and a light receiving timing when a light receiver receives reflected light of the light from the distance measurement target region;
- and
- in a case in which a specific pixel included in the light receiver generates a plurality of signals at different timings within a light receiving period corresponding to the surface irradiation, measure the first distance on the basis of a relationship between the plurality of signals generated by the specific pixel, the plurality of signals including a first signal and a second signal, the first signal having a first intensity that is equal to or greater than a first threshold value, and the second signal having a second intensity that is less than the first threshold value and is equal to or greater than a second threshold value that is less than the first threshold value,
- wherein the first threshold value is a value that is determined as a lower limit value of an intensity of the reflected light from a glossy object, and
- wherein the second threshold value is a value that is determined as a lower limit value of an intensity of the reflected light from a standard subject assumed to be the object.
6 more elements
An information processing method comprising:
- causing a light irradiator to perform surface irradiation on a distance measurement target region with light;
- causing a light receiver to receive reflected light of the light from the distance measurement target region;
- and
- measuring a first distance to an object in the distance measurement target region on the basis of an irradiation timing when the light irradiator performs the surface irradiation on the distance measurement target region with the light and a light receiving timing when the light receiver receives the reflected light,
- wherein, in a case in which a specific pixel included in the light receiver generates a plurality of signals at different timings within a light receiving period corresponding to the surface irradiation, the first distance is measured on the basis of a relationship between the plurality of signals generated by the specific pixel, the plurality of signals including a first signal and a second signal, the first signal having a first intensity that is equal to or greater than a first threshold value, and the second signal having a second intensity that is less than the first threshold value and is equal to or greater than a second threshold value that is less than the first threshold value,
- wherein the first threshold value is a value that is determined as a lower limit value of an intensity of the reflected light from a glossy object, and
- wherein the second threshold value is a value that is determined as a lower limit value of an intensity of the reflected light from a standard subject assumed to be the object.
4 more elements
A non-transitory computer readable recording medium storing a program that causes a computer to execute a process comprising:
- causing a light irradiator to perform surface irradiation on a distance measurement target region with light;
- causing a light receiver to receive reflected light of the light from the distance measurement target region;
- and
- measuring a first distance to an object in the distance measurement target region on the basis of an irradiation timing when the light irradiator performs the surface irradiation on the distance measurement target region with the light and a light receiving timing when the light receiver receives the reflected light,
- wherein, in a case in which a specific pixel included in the light receiver generates a plurality of signals at different timings within a light receiving period corresponding to the surface irradiation, the first distance is measured on the basis of a relationship between the plurality of signals generated by the specific pixel, the plurality of signals including a first signal and a second signal, the first signal having a first intensity that is equal to or greater than a first threshold value, and the second signal having a second intensity that is less than the first threshold value and is equal to or greater than a second threshold value that is less than the first threshold value,
- wherein the first threshold value is a value that is determined as a lower limit value of an intensity of the reflected light from a glossy object, and
- wherein the second threshold value is a value that is determined as a lower limit value of an intensity of the reflected light from a standard subject assumed to be the object.
4 more elements
Dependencies are inferred from the claim text.