Image depth domestic and international methods for estimating image depth

Domestic and international methods of image depth estimation are mainly divided into monocular depth estimation methods and binocular depth estimation methods, monocular is based on a lens, while binocular is based on two lenses, based on them there are many depth estimation methods, the following are given separately. Monocular is based on an image to estimate its depth information, relative to the binocular depth estimation methods, - there is a certain degree of difficulty, many scholars have proposed a large number of monocular depth estimation methods based on monocularity, there are based on the understanding of the content of the image, based on the focus, based on the focus, based on the dark and light changes, etc., the following briefly introduces two of these methods.

(1) Depth estimation methods based on image content understanding Depth estimation methods based on image content understanding are mainly categorized by chunking each scene in the image, and then estimating the depth information of each category of scene with their respective applicable methods.

(2) Depth estimation methods depicted in the focus Depth from focus (DIT) is enough to make the camera relative to the point being measured in the spot, then) according to the lens imaging formula can be obtained relative to the distance of the point being measured camera. Domestic and foreign more mature and widely used binocular depth estimation method is more than in the double E1 parallax depth estimation method, it is the use of two cameras imaging, because the two cameras called the existence of a certain distance, so the same scene through the two lenses into the image has a? A certain difference, both parallax, because of the existence of parallax information, can be due to estimate the scene of the general depth information.