Imager array interfaces

• US 10,455,168 B2
• Filed: 04/02/2018
• Issued: 10/22/2019
• Est. Priority Date: 05/12/2010
• Status: Active Grant

• Current Assignee: FotoNation Limited (Adeia Inc.)
• Original Assignee: FotoNation Limited (Adeia Inc.)
• Inventors: McMahon, Andrew Kenneth John
• Primary Examiner(s): Tran, Nhan T
• Application Number:
  US15/943,512
• Publication Number:
  US 20180227511A1
• Time in Patent Office: 568 Days
• CPC Class Codes: H04N 23/13 with multiple sensors
• CPC Class Codes: H04N 23/951 by using two or more images to influence resolution, frame rate or aspect ratio
• CPC Class Codes: H04N 25/134 based on three different wavelength filter elements
• CPC Class Codes: H04N 25/40 Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
• CPC Class Codes: H04N 25/41 Extracting pixel data from a plurality of image sensors simultaneously picking up an image, e.g. for increasing the field of view by combining the outputs of a plurality of sensors
• CPC Class Codes: H04N 25/44 by partially reading an SSIS array
• CPC Class Codes: H04N 25/672 between adjacent sensors or output registers for reading a single image
• CPC Class Codes: H04N 25/704 Pixels specially adapted for focusing, e.g. phase difference pixel sets
• CPC Class Codes: H04N 25/75 Circuitry for providing, modifying or processing image signals from the pixel array
• CPC Class Codes: H04N 25/767 Horizontal readout lines, multiplexers or registers
• CPC Class Codes: H04N 25/77 Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
• CPC Class Codes: H04N 25/772 comprising A/D, V/T, V/F, I/T or I/F converters
• CPC Class Codes: H04N 25/78 Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters

Abstract

Architectures for imager arrays configured for use in array cameras in accordance with embodiments of the invention are described. One embodiment of the invention includes a plurality of focal planes, where each focal plane comprises a two dimensional arrangement of pixels having at least two pixels in each dimension and each focal plane is contained within a region of the imager array that does not contain pixels from another focal plane, control circuitry configured to control the capture of image information by the pixels within the focal planes, where the control circuitry is configured so that the capture of image information by the pixels in at least two of the focal planes is separately controllable, sampling circuitry configured to convert pixel outputs into digital pixel data, and output interface circuitry configured to transmit pixel data via an output interface.

Claims

1. A method of obtaining image data, comprising:

separately capturing image data using an imager array comprising a plurality of focal planes functioning as a plurality of cameras in a single semiconductor substrate, where each camera comprises a two dimensional arrangement of pixels having at least two pixels in each dimension and each camera is contained within a region of the imager array that does not contain pixels from another camera, and wherein separately capturing the image data is performed by separately controlling at least two of the cameras having different imaging characteristics;

selecting a set of active cameras from said plurality of cameras, the active cameras having sensors which are active and that are providing the image data;

multiplexing the image data into at least one line of image data from the selected set of active cameras;

packetizing, by a master control logic, the at least one line of image data with additional data into a packet of data, wherein the additional information comprises at least codes inserted between pixel data for identifying a focal plane, integration time of each focal plane and information for demultiplexing the image data; and

transmitting the packet of data via output ports of an output interface in the imager array.

2. The method of claim 1, where in multiplexing the image data is performed onto output ports of an output interface including fewer than M×

N output ports, wherein the imager array includes M×

N cameras.

3. The method of claim 1, further comprising:

buffering portions of the captured image data within memory in the imager array until a time-slot is available on an output port of the output interface to transmit the image data.

4. The method of claim 1, wherein separately capturing the image data is performed by separately controlling at least two of the cameras, at least one of which is configured to capture image data at a predetermined wavelength of light.

5. The method of claim 1, wherein separately capturing the image data is performed by separately controlling at least two of the cameras, at least one of which is configured to capture image data at visible light wavelengths.

6. The method of claim 1, wherein separately capturing the image data is performed by separately controlling at least two of the cameras, at least one of which is configured to capture image data at near-IR wavelengths.

7. The method of claim 1, wherein separately capturing the image data is performed by separately controlling at least two of the cameras, at least one of which is configured to capture image data at extended-color wavelengths.

8. The method of claim 1, wherein separately capturing the image data is performed by separately controlling at least two of the cameras, at least one of which is configured to capture image data at a predetermined intensity of light.

9. The method of claim 1, wherein separately capturing the image data is performed by separately controlling at least two of the cameras, at least one of which is configured to capture image data using a predetermined exposure time.

10. The method of claim 1, wherein separately capturing the image data is performed by separately controlling at least two of the cameras configured to capture image data starting at different times.

11. The method of claim 1, wherein separately capturing the image data is performed by separately controlling at least two of the cameras configured to capture image data ending at different times.