Sensor architecture using frame-based and event-based hybrid scheme
First Claim
Patent Images
1. An apparatus for providing image sensing, the apparatus comprising:
- a pixel array having a plurality of pixels arranged in two dimensions, wherein;
input sensed by each pixel of the plurality of pixels results in a value associated with each pixel,each pixel of the plurality of pixels is configured to be periodically evaluated at a frame rate, andeach pixel of the plurality of pixels comprises at least one output, the at least one output comprises an analog output that provides an output signal to peripheral circuitry only when the value associated with each pixel has changed above a threshold level since the previous evaluation of the pixel.
1 Assignment
0 Petitions
Accused Products
Abstract
A hybrid camera sensor offers efficient image sensing by periodically evaluating pixels at a certain frame rate and disregarding values of pixels that have changed less than a threshold amount. Because only a fraction of pixels in the camera sensor may change values from frame to frame, this can result in faster readout times, which can optionally enable increased frame rates.
48 Citations
28 Claims
-
1. An apparatus for providing image sensing, the apparatus comprising:
-
a pixel array having a plurality of pixels arranged in two dimensions, wherein; input sensed by each pixel of the plurality of pixels results in a value associated with each pixel, each pixel of the plurality of pixels is configured to be periodically evaluated at a frame rate, and each pixel of the plurality of pixels comprises at least one output, the at least one output comprises an analog output that provides an output signal to peripheral circuitry only when the value associated with each pixel has changed above a threshold level since the previous evaluation of the pixel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for providing image sensing, the method comprising:
-
for each pixel in a plurality of pixels in a pixel array, sensing a value associated with the pixel; periodically evaluating each pixel in the plurality of pixels at a frame rate; and
providing, at each pixel of the plurality of pixels, at least one output, the at least one output comprising an analog output that provides an output signal to peripheral circuitry only when the value associated with the pixel has changed beyond above a threshold level since a previous evaluation of the pixel. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. An apparatus comprising:
-
means for sensing, for each pixel in a plurality of pixels in a pixel array, a value associated with the pixel; means for periodically evaluating each pixel in the plurality of pixels at a frame rate; and means for providing, at each pixel of the plurality of pixels, at least one output, the means for providing at least one output comprising means for providing an analog output signal to peripheral circuitry only when the value associated with each pixel has changed above a threshold level since a previous evaluation of the pixel. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
-
22. A non-transitory computer-readable medium having instructions embedded thereon for processing an image, the instructions, when executed by one or more processing units, cause the one or more processing units to:
-
periodically evaluate each pixel in a plurality of pixels at a frame rate, wherein input sensed by each pixel of the plurality of pixels results in a value associated with each pixel; and receive, for each pixel of the plurality of pixels, at least one output, the at least one output comprising an analog output that provides an output signal to peripheral circuitry only when the value associated with the pixel has changed above a threshold level since a previous evaluation of the pixel. - View Dependent Claims (23, 24, 25, 26, 27, 28)
-
Specification