Ranging device, ranging method and computer readable medium
AssigneeMitsubishi Electric Corporation
InventorMasashi FUKUNAGA
Life of this patent
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Abstract
A sensitivity adjustment unit (102) adjusts a responsivity of a light receiving element (400) so that the responsivity becomes high. A noise removal unit (103) analyzes, after the responsivity is adjusted by the sensitivity adjustment unit (102), a temporal transition of a phase difference between an irradiation light emitted from a light emitting element (300) paired with the light receiving element (400) and a light received by the light receiving element (400) including a reflected light reflected by a ranging target (200) being a target of ranging, and removes a noise component included in the light received by the light receiving element (400).
Claims8
A ranging device comprising:
- processing circuitry:
- to adjust a responsivity of a light receiving element so that the responsivity becomes high;
- and
- to analyze, after the responsivity is adjusted, a temporal transition of a phase difference between an irradiation light emitted from a light emitting element paired with the light receiving element and a light received by the light receiving element including a reflected light reflected by a ranging target being a target of ranging, and to remove a noise component included in the light received by the light receiving element.
A ranging method comprising:
- adjusting a responsivity of a light receiving element so that the responsivity becomes high;
- and
- analyzing, after the responsivity is adjusted, a temporal transition of a phase difference between an irradiation light emitted from a light emitting element paired with the light receiving element and a light received by the light receiving element including a reflected light reflected by a ranging target being a target of ranging, and removing a noise component included in the light received by the light receiving element.
A non-transitory computer readable medium storing a ranging program to make a computer perform:
- a sensitivity adjustment process to adjust a responsivity of a light receiving element so that the responsivity becomes high;
- and
- a noise removal process to analyze, after the responsivity is adjusted by the sensitivity adjustment process, a temporal transition of a phase difference between an irradiation light emitted from a light emitting element paired with the light receiving element and a light received by the light receiving element including a reflected light reflected by a ranging target being a target of ranging, and to remove a noise component included in the light received by the light receiving element.
Dependencies are inferred from the claim text.