Abstract: Systems and techniques are described herein for generating a composite image. For instance, a method for generating a composite image is provided. The method may include receiving first data representative of an image of a field of view from an array of photodiodes of an image sensor; receiving second data representative of an image of a region of interest within the field of view from a subset of the array of photodiodes, wherein the region of interest is smaller than the field of view, wherein the subset of the array of photodiodes within the array of photodiodes corresponds to the region of interest within the field of view, and wherein the subset of the array of photodiodes includes fewer photodiodes than the array of photodiodes; and generating a composite image of the field of view based on the first data and the second data.

Abstract: A device may include one or more processors, an image signal processor, and system memory. The one or more processors are configured to receive a request to accommodate a preview stream and a snapshot stream and output a request to increase a bandwidth between the image signal processor and the system memory to accommodate the preview stream in response to receiving the request to accommodate the preview stream and the snapshot stream. The request to increase the bandwidth to accommodate the preview stream refrains from accommodating the snapshot stream. Responsive to receiving a request to generate an image, for storage at the system memory, that corresponds to an image being output by the preview stream, the one or more processors are further configured to output a request to further increase the bandwidth between the image signal processor and the system memory to accommodate the snapshot stream.

Abstract: Methods and devices for determining camera tampering are disclosed. In some aspects, a device includes one or more processors and a memory coupled to the one or more processors. The memory includes instructions that, when executed by the one or more processors, cause the device to determine a first sum vector of intensity values from a first image frame captured by a camera at a first time, determine a second sum vector of intensity values from a second image frame captured by the camera at a second time after the first time, compare the first sum vector to the second sum vector, and detect a tampering of the camera based on the comparison.

Abstract: A device may include one or more processors, an image signal processor, and system memory. The one or more processors are configured to receive a request to accommodate a preview stream and a snapshot stream and output a request to increase a bandwidth between the image signal processor and the system memory to accommodate the preview stream in response to receiving the request to accommodate the preview stream and the snapshot stream. The request to increase the bandwidth to accommodate the preview stream refrains from accommodating the snapshot stream. Responsive to receiving a request to generate an image, for storage at the system memory, that corresponds to an image being output by the preview stream, the one or more processors are further configured to output a request to further increase the bandwidth between the image signal processor and the system memory to accommodate the snapshot stream.