Time-of-flight system and time-of-flight methods
AssigneeSony Semiconductor Solutions Corporation
InventorsMadani Arioua, Morin Dehan, Anthony Antoun, Carlos Belmonte Palmero
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Abstract
A Time-of-Flight system having a light source which emits first light rays at a first wavelength and second light rays at a second wavelength to an object, the second wavelength being larger than the first wavelength, and a time-of-flight sensor which detects the first light rays at the first wavelength and the second light rays at the second wavelength, and generates first time-of-flight data associated with the detected first light rays and second time-of-flight data associated with the detected second light rays.
Claims15
A Time-of-Flight system comprising:
- a light receiver configured to receive first light rays at a first wavelength and second light rays at a second wavelength reflected from an object, the second wavelength being larger than the first wavelength;
- and
- a time-of-flight sensor configured to detect the first light rays at the first wavelength and the second light rays at the second wavelength, and to generate first time-of-flight data associated with the detected first light rays and second time-of-flight data associated with the detected second light rays,
- wherein the time-of-flight sensor includes at least one first imaging element of a first type configured to detect the first light rays and at least one second imaging element of a second type configured to detect the second light rays, and
- the first time-of-flight data are generated by applying a first demodulation scheme to the at least one first imaging element of the first type and the second time-of-flight data are generated by applying a second demodulation scheme to the at least one second imaging element of the second type, the first demodulation scheme being applied independently from the second demodulation scheme.
A Time-of-Flight method, comprising:
- receiving first light rays at a first wavelength and second light rays at a second wavelength reflected from an object, the second wavelength being larger than the first wavelength;
- detecting the first light rays at the first wavelength and the second light rays at the second wavelength;
- generating first time-of-flight data associated with the detected first light rays and second time-of-flight data associated with the detected second light rays;
- and
- fusing the first time-of-flight data and the second time-of-flight data for enhancing a signal intensity in the fused data, wherein the signal intensity depends on a material reflectivity of the illuminated object, wherein the material reflectivity is different for the first light rays at the first wavelength and the second light rays at the second wavelength.
A Time-of-Flight system, comprising:
- a light receiver configured to receive first light rays at a first wavelength and second light rays at a second wavelength reflected from an object, the second wavelength being larger than the first wavelength;
- a time-of-flight sensor configured to
- detect the first light rays at the first wavelength and the second light rays at the second wavelength, and
- generate first time-of-flight data associated with the detected first light rays and second time-of-flight data associated with the detected second light rays;
- and
- a logic circuit configured to fuse the first time-of-flight data and the second time-of-flight data for enhancing a signal intensity in the fused data, wherein the signal intensity depends on a material reflectivity of the illuminated object, wherein the material reflectivity is different for the first light rays at the first wavelength and the second light rays at the second wavelength.
Dependencies are inferred from the claim text.