Lidar depth measurement systems and methods
AssigneeFacebook Technologies, LLC
InventorMichael Hall
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Abstract
The disclosed system may include (1) a light source that emits light pulses into a field of view, (2) a light sensor array that captures light reflected from the field of view resulting from the light pulses, (3) a light control subsystem that (a) controls an emission timing of the light source and (b) controls a capture timing of the light sensor array relative to the emission timing of the light source, and (4) a depth measurement subsystem that generated depth measurements of at least some of the field of view based at least in part on output from the light sensor array, where operation of the light control subsystem is based at least in part on prior knowledge of the field of view. Various other methods and systems are also disclosed.
Claims20
A system comprising:
- a light source that emits light pulses into a field of view;
- a light sensor array that captures light reflected from the field of view resulting from the light pulses;
- a light control subsystem that:
- controls an emission timing of the light source;
- and
- controls a capture timing of the light sensor array relative to the emission timing of the light source;
- and
- a depth measurement subsystem that generates depth measurements of at least some of the field of view based at least in part on output from the light sensor array;
- wherein operation of the light control subsystem is based at least in part on prior knowledge of the field of view.
A method comprising:
- emitting light pulses into a field of view according to an emission timing;
- capturing light reflected from a plurality of regions of interest of the field of view resulting from the light pulses according to a capture timing relative to the emission timing;
- and
- generating depth measurements of at least some of the field of view based at least in part on the captured light;
- wherein the capture timing for each of the plurality of regions of interest is based at least in part on prior knowledge of the field of view.
A method comprising:
- emitting light pulses sequentially into selected regions of interest of a field of view according to an emission timing;
- capturing light reflected from the selected regions of interest of the field of view resulting from the light pulses according to a capture timing relative to the emission timing;
- and
- generating depth measurements of at least some of the field of view based at least in part on the captured light;
- wherein at least one of the selected regions of interest, the emission timing, or the capture timing are based at least in part on prior knowledge of the field of view.
Dependencies are inferred from the claim text.