Systems and methods for adjusting focus based on focus target information
First Claim
Patent Images
1. An apparatus, comprising:
- a camera module, comprising;
an image sensor, configured to convert a first optical scene information to a first electrical representation, wherein the first electrical representation includes first focus pixel information;
a lens assembly, configured to adjust focus of the first optical scene information based on a focus control signal;
a controller, coupled to the image sensor and the lens assembly and configured to;
receive focus target information, wherein the focus target information includes at least one of;
two dimensional (2D) coordinates, pixel image plane coordinates, integer pixel coordinates, normalized coordinates, or XY coordinates;
receive the first electrical representation from the image sensor;
continuously generate, by a focus control system within the controller, the focus control signal based on the focus target information and the first focus pixel information;
transmit the focus control signal to the lens assembly;
generate, by an array of analog-to-digital converter circuits, a digital representation of the first electrical representation; and
a camera interconnect, coupled to the controller, and configured to transmit the focus target information to the controller, and the digital representation from the controller,wherein the lens assembly, the image sensor and the controller are packaged together in a rigid housing; and
an application processor, coupled to the camera interconnect, and configured to;
receive the digital representation;
identify one or more focus regions based on the digital representation;
continuously generate the focus target information based on the one or more focus regions; and
cause transmission of the focus target information to the controller through the camera interconnect,wherein the application processor is packaged outside of the rigid housing.
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Abstract
A system, method, and computer program product are provided for adjusting focus based on focus target information. In use, an image is sampled as image data, using a camera module. Next, the image data is transmitted for processing, wherein the processing includes identifying one or more focus regions. Additionally, focus target information is determined corresponding to one or more focus regions. Further, a focus is adjusted, based on the focus target information, and the image is captured. Additional systems, methods, and computer program products are also presented.
167 Citations
20 Claims
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1. An apparatus, comprising:
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a camera module, comprising; an image sensor, configured to convert a first optical scene information to a first electrical representation, wherein the first electrical representation includes first focus pixel information; a lens assembly, configured to adjust focus of the first optical scene information based on a focus control signal; a controller, coupled to the image sensor and the lens assembly and configured to; receive focus target information, wherein the focus target information includes at least one of;
two dimensional (2D) coordinates, pixel image plane coordinates, integer pixel coordinates, normalized coordinates, or XY coordinates;receive the first electrical representation from the image sensor; continuously generate, by a focus control system within the controller, the focus control signal based on the focus target information and the first focus pixel information; transmit the focus control signal to the lens assembly; generate, by an array of analog-to-digital converter circuits, a digital representation of the first electrical representation; and a camera interconnect, coupled to the controller, and configured to transmit the focus target information to the controller, and the digital representation from the controller, wherein the lens assembly, the image sensor and the controller are packaged together in a rigid housing; and an application processor, coupled to the camera interconnect, and configured to; receive the digital representation; identify one or more focus regions based on the digital representation; continuously generate the focus target information based on the one or more focus regions; and cause transmission of the focus target information to the controller through the camera interconnect, wherein the application processor is packaged outside of the rigid housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method, comprising:
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receiving, using a controller coupled to an image sensor and a lens assembly, focus target information, wherein the focus target information includes at least one of;
two dimensional (2D) coordinates, pixel image plane coordinates, integer pixel coordinates, normalized coordinates, or XY coordinates;receiving, using the controller, a first electrical representation, including first focus pixel information from the image sensor; continuously generating, using the controller, by a focus control system within the controller, a focus control signal, configured to adjust focus of a first optical scene information of the lens assembly, based on the focus target information and the first focus pixel information; transmitting, using the controller, the focus control signal to the lens assembly; generating, using the controller, by an array of analog-to-digital converter circuits, a digital representation of the first electrical representation; receiving, using an application processor, the digital representation; identifying, using the application processor, one or more focus regions based on the digital representation; continuously generating, using the application processor, the focus target information based on the one or more focus regions; and transmitting, using the application processor, the focus target information to the controller through a camera interconnect; wherein the lens assembly, the image sensor and the controller are packaged together in a rigid housing, and the application processor is packaged outside of the rigid housing.
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Specification