METHOD FOR DEPTH ESTIMATION UNDER LOW LIGHT LEVEL CONDITIONS USING A STEREOSCOPIC PASSIVE PHOTO-COUNTING IMAGING SYSTEM

摘要

PURPOSE: A method of estimating the location of an object in a dark environment is provided to enable 3D location tracking at night, in a dark room, or in a cave by estimating the location of an object by a location estimation algorithm through stereo photon counting detection imaging device and photon counting image matching. CONSTITUTION: A method of estimating the location of an object in a dark environment acquires a left photon-counting image with a left photon-counting detector (S1) and acquires a right photon-counting image with a right photon-counting detector (S2). The method pre-processes the acquired image (S3). The method pre-processes the acquired image (S4). Variation of pixel by nonlinear matching filtering of the left and right images is calculated (S5). The depth of a hidden object is estimated from pixel variation (S6). [Reference numerals] (AA) Left photon-counting detector; (BB) Right photon-counting detector; (S1) Obtain images using a left photon-counting detector; (S2) Obtain images using a right photon-counting detector; (S3) Preprocess the images from the left photon-counting detector; (S4) Preprocess the images from the right photon-counting detector; (S5) Calculate the variation of pixels by non-linearly matching filtering of the left and right images; (S6) Produce distance information