DUAL-APERTURE RANGING SYSTEM

摘要

A ranging system including a first aperture stop, a second aperture stop, an image sensor and a processing unit is provided. The first aperture stop includes a sheet of IR-cut filter material. The second aperture stop includes a sheet of opaque material. The image sensor receives light passing through the first and second aperture stops to output an image frame. The processing unit respectively calculates a convolution between a first color subframe of the image frame and a plurality of first blur kernels to generate a plurality of blurred first frames, respectively calculates a convolution between a second color subframe of the image frame and a plurality of second blur kernels to generate a plurality of blurred second frames, and performs a best matching between the blurred first frames and the blurred second frames.

主权项

1. A ranging system comprising:
a first aperture stop comprising a sheet of IR-cut material and having a first diaphragm aperture; a second aperture stop comprising a sheet of opaque material and having a second diaphragm aperture, wherein the second diaphragm aperture is larger than the first diaphragm aperture; and a pixel array composed of IR pixels and green pixels or composed of IR pixels and blue pixels, and configured to receive light passing through the first aperture stop and the second aperture stop.