System and method of depth imaging based on rolling shutter cmos image sensor and down conversion techniques
AssigneeGM Global Technology Operations LLC
InventorEmanuel Mordechai
Life of this patent
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Abstract
A vehicle, imaging system and method of determining a range of an object to a vehicle. The imaging system includes a light source, a receiver and a processor. The light source is configured to transmit a source signal at a source frequency at an object, wherein the source signal is reflected from the object to create a reflected signal. The receiver includes a sensor array and is configured to modulate the reflected signal at a mixing frequency to generate a down-converted signal and record the down-converted signal at the sensor array. The processor is configured to determine a range of the object to the vehicle using the down-converted signal.
Claims20
A method of determining a range of an object at a vehicle, comprising:
- transmitting a source signal from the vehicle at a source frequency at the object, wherein the source signal is reflected from the object to create a reflected signal;
- modulating the reflected signal using a mixing frequency to form a down-converted signal;
- recording the down-converted signal at a sensor array of the vehicle;
- and
- determining the range of the object to the vehicle using the down-converted signal.
An imaging system of a vehicle, comprising:
- a light source configured to transmit a source signal at a source frequency at an object, wherein the source signal is reflected from the object to create a reflected signal;
- a receiver having a sensor array, the receiver configured to modulate the reflected signal at a mixing frequency to generate a down-converted signal and record the down-converted signal at the sensor array;
- and
- a processor configured to determine a range of the object to the vehicle using the down-converted signal.
A vehicle, comprising:
- a light source configured to transmit a source signal at a source frequency at an object, wherein the source signal is reflected from the object to create a reflected signal;
- a receiver having a sensor array, the receiver configured to modulate the reflected signal at a mixing frequency to generate a down-converted signal and record the down-converted signal at the sensor array;
- and
- a processor configured to determine a range of the object using the down-converted signal.
Dependencies are inferred from the claim text.