Abstract: An image capture device accesses two-dimensional input image comprising pixels distorted in a radial direction. The image capture device defines a projection of a region within the image corresponding to a set of control signals mimicking adjustments to a field of view of the camera, The projection is a two-dimensional coordinate plane of the region without distortions in the radial direction. The image capture device normalizes each point on the projection onto a three-dimensional coordinate sphere representing a full range of motion of the camera. The image capture device maps each normalized point on the coordinate sphere to a two-dimensional point on the input image. For each mapped point on the input image, the image capture device extracts a pixel value from a pixel at the mapped point to project the pixel value at a corresponding position on the projection of the region.

Abstract: An image capture device includes a camera that captures video frames of a scene surrounding the camera. The image capture device further includes a lens attachment that directs light rays from the lens of the camera across a wider field of view than the lens of the camera. The image capture device further includes a housing that removably couples the lens attachment to the camera. The image capture device further includes a processor communicatively coupled to the camera. The processor receives a video frame captured by the camera through the lens attachment and generates a two-dimensional projection of the video frame by mapping pixels of the video frame from the three-dimensional coordinate space to a two-dimensional coordinate space.