Patent ID: 11889193
Assignee: AUTEL ROBOTICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 0:
1. A zoom method, applied to an unmanned aerial vehicle comprising an image capturing apparatus, a memory, the method comprising:
controlling the image capturing apparatus to capture an initial image, wherein a resolution of the initial image is W0*H0 and an area of the initial image is S0;
obtaining a cropped image according to the initial image, wherein the cropped image is an image with an area of S cropped from a preset region in the initial image, S0/S=C and C is a digital zoom factor of the image capturing apparatus; and
obtaining a zoom image according to the cropped image, wherein the zoom image is an image obtained by zooming the cropped image by C/A times, a resolution of the zoom image is W1*H1, A=W0/W1, B=H0/H and C≤A, and storing the zoom image in the memory;
wherein obtaining a cropped image according to the initial image ,the method further comprising,
if B>A, cropping X parts to the initial image to obtain the cropped image, and zooming out the cropped images by A times to obtain the zoom image with a width of W1 and a height of H1, X parts is upper and lower regions on two opposite sides of the initial image;
if A>B, cropping Y parts to the initial image to obtain the cropped image, and zooming out the cropped images by B times to obtain the zoom image with a width of W1 and a height of H1, Y parts is left and right regions on two opposite sides of the initial image.