IMAGE DEVICE FOR DETERMINING AN INVALID DEPTH INFORMATION OF A DEPTH IMAGE AND OPERATION METHOD THEREOF

摘要

An image device for determining an invalid depth information of a depth image includes a first sensor, a second sensor, a pre-processing module, a depth map engine, and an error determination unit. The first sensor captures first images and the second sensor captures second images. The pre-processing module generates a reference image according to each first image of the first images and a target image corresponding to the reference image according to a second image of the second images. The depth map engine generates a first depth image according to the reference image and the target image. The error determination unit sets gray level values of pixels of invalid areas of the first depth image to be a predetermined value to generate a second depth image, wherein pixels of the second depth image with the predetermined value have the invalid depth information.