A multi-view camera based depth image estimation method is provided. The depth image estimating method includes: converting multi-view images to a virtual viewpoint; Estimating a depth image using the transformed multi-view images; And generating multi-view depth images using the estimated depth images. Accordingly, the multi-view image-based depth estimation technique is a highly complex technique, but according to embodiments of the present invention, high-quality depth images using about 20 high resolution images can be acquired in real time.
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