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Integrated camera system having two dimensional image capture and three dimensional time-of-flight capture with movable illuminated region of interest

A time-of-flight and lighting area technology, applied in image communication, stereo system, TV system components, etc.

Active Publication Date: 2017-03-08
GOOGLE LLC
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Since many computing systems with imaging capabilities are mobile in nature (e.g., laptops, tablets, smartphones, etc.), yinci's integration of light sources ("illuminators") into the system for "time-of-flight" operation brings Many design challenges such as cost challenges, packaging challenges and / or power dissipation challenges

Method used

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  • Integrated camera system having two dimensional image capture and three dimensional time-of-flight capture with movable illuminated region of interest
  • Integrated camera system having two dimensional image capture and three dimensional time-of-flight capture with movable illuminated region of interest
  • Integrated camera system having two dimensional image capture and three dimensional time-of-flight capture with movable illuminated region of interest

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Embodiment Construction

[0023] A "smart lighting" time-of-flight system addresses some of the above-mentioned design challenges. As will become clearer in the following discussion, a "smart lighting" time-of-flight system may only emit light onto a "region of interest" within the illuminator's field of view. Thus, the intensity of the emitted optical signal is strong enough to generate a detectable signal at the image sensor, while at the same time, the power consumption of the illuminator is not significantly drawn from the power source of the computer system.

[0024] One smart lighting approach is to use a movable objective lens to collect and focus light from an array of light sources into a stronger beam that can be directed to various regions of interest within the illuminator's field of view. followed by reference Figures 1a to 1d A review of some features of this particular method is discussed.

[0025] refer to Figure 1a , the illuminator 101 has a field of view 102 over which the illumi...

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Abstract

An apparatus is described having an integrated two-dimensional image capture and three-dimensional time-of-flight depth capture system. The integrated two-dimensional image capture and three-dimensional time-of-flight depth capture system includes an illuminator to generate light for the time-of-flight depth capture system. The illuminator includes an array of light sources and a movable lens assembly. The movable lens assembly is to movably direct an emitted beam of the light to one of any of a plurality of locations within the illuminator's field of view to form an illuminated region of interest within the illuminator's field of view. The illuminated region of interest has a size that is smaller than the illuminator's field of view.

Description

technical field [0001] The field of the invention pertains generally to computing system peripherals, and more specifically, to integrated camera systems with two-dimensional image capture and three-dimensional time-of-flight capture with movable illumination regions of interest. Background technique [0002] Many existing computing systems include traditional cameras as integrated peripherals. The current trend is to enhance the imaging capabilities of computing systems by integrating depth capture into their imaging components. Depth capture can be used, for example, to perform various smart object recognition functions, such as face recognition (eg, for security system unlocking) or gesture recognition (eg, for contactless user interface functions). [0003] One method of capturing depth information, known as "time-of-flight" imaging, sends light from the system onto the object and measures the light emitted and its reflection received on the sensor for each of the multi...

Claims

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Application Information

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IPC IPC(8): H04N5/225H04N5/232H04N5/235G01S17/894
CPCH04N23/56H04N23/60H04N23/55H04N23/74G01S7/4813G01S7/4815G01S7/4817G01S7/4972H04N13/254H04N13/271H04N13/286G01S17/894H04N13/296G01S17/89H04N5/2226H04N23/45H04N23/667H04N23/11
Inventor J.科温宗晋
Owner GOOGLE LLC
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