Amazon Technologies, Inc.

Alessio Carosi

Ilya Vladimirovich Brailovskiy

Qi Keith Wang

Gordon McLean Downie

Ulises Brindis

Techniques are generally described for remote estimation of bandwidth. In various examples, a video stream may be received at a first bit rate over a first communication channel. A first value of a network condition of the video stream may be determined over a first time period. A determination may be made that the first value is less than a threshold value. A first bandwidth estimate of the communication channel may be determined. The first bandwidth estimate may comprise the first bit rate reduced by a first percentage. A second value of the network condition may be determined over a second time period. A determination may be made that the second value is greater than the threshold value. A second bandwidth estimate of the communication channel may be determined. The second bandwidth estimate may be less than the first bandwidth estimate.

Bandwidth estimation for video encoding

An embodiment of a camera device may include an optical filter. The camera device may attempt to actuate the optical filter from an inactive position to an active position, record video, count a quantity of pixels, and/or a quantity of lines of pixels, in one or more frames of the video that are a color that is characteristic of the absence of the optical filter, determine that the quantity is greater than a threshold, and again attempt to move the optical filter to its active position.

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Waterbeach, United Kingdom

Alessio Carosi