Device and method for capturing images using depth-of-field

摘要

An image capturing device includes a pre-capturing module, a conversion module, a division module, a ranging module, a calculation module, and an image capturing module. The pre-capturing module obtains an initial image of a view the image capturing device to be captured. The conversion module converts the initial image to a gray scale image. The division module divides the gray scale image into multiple areas. The ranging module calculates an object distance collection of each area, and generates a total object distance collection by integrating the object distance collections. The calculation module calculates image capturing condition which makes a plurality of depth-of-field cover the total object distance collection. The image capturing module captures a plurality of images according to the image capturing condition to form an image array. An image capturing method is also provided.

主权项

1. An image capturing device using depth-of-field, comprising:
at least one processor; a storage system; and one or more programs that are stored in the storage system and executed by the at least one processor, the one or more programs comprising: a pre-capturing module to receive an initial image of a view required to be captured; a conversion module to convert the initial image to a gray scale image; a division module to divide the gray scale image into multiple areas; a ranging module to calculate an object distance collection of each area of the multiple areas and to generate a total object distance collection by integrating the object distance collections; a calculation module to calculate image capturing conditions which makes a plurality of depth-of-field cover the total object distance collection; and an image capturing module to capture a plurality of images according to the image capturing conditions to form an image array; wherein the calculation module calculates the image capturing conditions by using the formulas: the front depth-of-field=(H*D)/(H+D−F) and the back depth-of-field=(H*D)/(H−D−F), wherein D is the object distance, F is a focus distance, and H is a hyper focal distance dependent on an aperture coefficient of the image capturing device, and the image capturing conditions comprise the focus distance and the aperture coefficient of the image capturing device.