Patent ID: 11889203
Assignee: LG INNOTEK CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A camera module, comprising:
an image sensor configured to output a plurality of image frames;
a lens assembly disposed on the image sensor,
wherein the lens assembly comprises:
at least one lens unit;
a holder holding the at least one lens unit disposed on an optical path; and
a variable filter unit configured to perform a pixel shift in response to a control signal to adjust the optical path of light incident on the image sensor,
wherein the variable filter unit comprises:
a filter configured to filter light within a predetermined wavelength range, the filter and the at least one lens unit being separately held by the holder; and
an actuator configured to adjust an angle of the filter with respect to an optical axis of the at least one lens unit in response to the control signal, thereby changing the optical path,
wherein the changing the optical path includes changing an angle of a field of view of an optical signal or a direction of the field of view,
wherein the plurality of image frames comprises image frames generated along respectively different optical paths changed by the variable filter unit, and
wherein the image sensor generates an image frame when the pixel shift has been performed by the variable filter unit;

a controller configured to generate the control signal; and
an image synthesizer configured to generate a composite image,
wherein the composite image has a resolution N (N is a positive integer greater than or equal to 4) times higher than that of each of the plurality of image frames,
wherein the image synthesizer sequentially receives the image frames from the image sensor, and
wherein the image synthesizer is configured to successively generate a plurality of composite images by generating a composite image, when a current image frame is received, based on the current image frame that is currently received from the image sensor thereto and N−1 image frames received immediately before the current image frame.