Systems and methods for image zoom

A non-transitory computer readable medium storing instructions that, when executed by a computing device, cause the computing device to perform functions comprising:

• operating a first camera having a first field of view of an environment, to capture a first image stream representing the first field of view;
• operating a second camera having a second field of view of the environment, to capture a second image stream representing the second field of view, wherein the first field of view is wider than the second field of view;
• initially using the first image stream to display the first field of view in a live-view interface, wherein the live-view interface is displayed on a graphic display;
• while displaying the first image stream in the live-view interface, receiving an input corresponding to a zoom command;
• and
• in response to receiving the input:
• (a) switching from using the first image stream to display the first field of view in the live-view interface to using a combination of the first image stream and the second image stream to display a transitional field of view of the environment in the live-view interface;
• and
• (b) subsequently switching to using the second image stream to display the second field of view in the live-view interface.

A system comprising:

• a processor;
• and
• a non-transitory computer readable medium storing instructions that, when executed by the processor, cause the system to perform functions comprising:
• operating a first camera having a first field of view of an environment, to capture a first image stream representing the first field of view;
• operating a second camera having a second field of view of the environment, to capture a second image stream representing the second field of view, wherein the first field of view is wider than the second field of view;
• initially using the first image stream to display the first field of view in a live-view interface, wherein the live-view interface is displayed on a graphic display;
• while displaying the first image stream in the live-view interface, receiving an input corresponding to a zoom command;
• and
• in response to receiving the input:
• (a) switching from using the first image stream to display the first field of view in the live-view interface to using a combination of the first image stream and the second image stream to display a transitional field of view of the environment in the live-view interface;
• and
• (b) subsequently switching to using the second image stream to display the second field of view in the live-view interface.

A method comprising:

• operating a first camera having a first field of view of an environment, to capture a first image stream representing the first field of view;
• operating a second camera having a second field of view of the environment, to capture a second image stream representing the second field of view, wherein the second field of view is wider than the first field of view;
• initially using the first image stream to display the first field of view in a live-view interface, wherein the live-view interface is displayed on a graphic display;
• while displaying the first image stream in the live-view interface, receiving an input corresponding to a zoom command;
• and
• in response to receiving the input:
• (a) switching from using the first image stream to display the first field of view in the live-view interface to using a combination of the first image stream and the second image stream to display a transitional field of view of the environment in the live-view interface;
• and
• (b) subsequently switching to using the second image stream to display the second field of view in the live-view interface.

A mobile device comprising:

• a first camera arranged on a surface of the mobile device and having a first field of view;
• a second camera arranged on the surface of the mobile device and having a second field of view, wherein the first field of view is wider than the second field of view, and wherein an optical axis of the second camera is substantially parallel to an optical axis of the first camera;
• a graphic display;
• and
• a control system that is operable to:
• operate the first camera to capture a first image stream;
• operate the second camera to capture a second image stream;
• use the first image stream to display an image stream of the first field of view in a live-view interface, wherein the live-view interface is displayed on the graphic display;
• while displaying the image stream of the first field of view in the live-view interface, receive an input corresponding to a zoom command;
• and
• in response to receiving the zoom command, switch to use of the second image stream to display an image stream of the second field of view in the live-view interface.