Patent ID: 11962912
Assignee: APTIV TECHNOLOGIES AG
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 12:
13. A computer implemented method comprising:
controlling a pulsed laser illumination source to illuminate a scene;
controlling a global shutter camera to capture a sequence of images of the scene, wherein the captured sequence of images includes images that are captured without illumination of the scene by the pulsed laser illumination source and images that are captured while the scene is illuminated by the pulsed laser illumination source; and
determining presence of an object in the scene based on comparison of the
images captured without illumination of the scene and images captured with illumination of the scene,
wherein, when capturing an image while the scene is illuminated by the pulsed laser illumination source, the pulsed laser illumination source is controlled to provide illumination during an integration time of each pixel row of the global
shutter camera for the image and without providing the illumination during an
entire frame period of the image, and
wherein the pulsed laser illumination source comprises a focused diode laser array including:
a flat surface and a spherical surface,
a collimation lens comprising two spherical surfaces,
two horizontal divergence lenses comprising two spherical surfaces and two cylindrical surfaces, and
two vertical divergence lenses comprising two spherical surfaces and two cylindrical surfaces.