Abstract: A system comprising a secure computer system, a network-enabled secure end-user device, and a coercion security system. The secure computer system can host secure services and/or sensitive data. The secure end-user device can utilize a secure device architecture that requires biometric authentication of an authorized user for access. The coercion security system can have an application running on the secure end-user device. The coercion security system can be configured to capture and analyze verbal communication proximate to the secure end-user device to address coercion of the authorized user by a nefarious actor to access the secure computer system and/or the secure end-user device. Without coercion of the authorized user, the nefarious actor can be unable to access the secure end-user device and/or the secure computer system. The coercion security system can executes one or more security commands upon the secure end-user device in response to detected coercion.

Abstract: A panoramic optical device includes a quadric reflector, a mirror, and a set of one or more optical elements. The quadric reflector has a conical shape, which tapers from a wide base to an apex. The apex includes an aperture. The mirror is positioned within the device in a plane approximately parallel to a circular cross section of the conical shape. The mirror reflects environmental light that is reflected by the quadric reflector into the aperture or reflecting light emitting from the aperture onto the quadric reflector. The set of one or more optical elements are positioned at least partially within a volumetric region of the quadric reflector. The one or more optical elements focus light passing through the aperture.

Abstract: A display device renders a field of view of a panoramic image that is produced from several separate images taken by different cameras. The field of view can be panned across the panoramic image. The separate images each show a portion of a panoramic view and border other images. When rendering a field of view that includes a border between two adjacent images, the images can be merged in a way that substantially eliminates the border and makes the view appear as one continuous image. The merging is performed only as needed, and border regions between images that are not in the rendered field of view are not merged so as to avoid using processing resources unnecessarily.

Abstract: A 360 degree panorama can capture a view of a real world environment. The view can be a 360 panorama which can conform to a stereographic projection. The capturing can be performed by a one shot panoramic video capture device lacking a display. A 360 degree arc frame can be analyzed to determine a one-to-one mapping to a target projection. The target projection can be a cylindrical or an equirectangular projection. The stereographic projection can be mapped to the target projection in real-time without performing a digital stitching operation within the device. Distortion in the target projection resulting from the mapping can be corrected. The target projection can be conveyed in real-time wirelessly to a display of a communicatively linked computing device.

Abstract: A stereographic image associated with a panoramic camera can be identified. The panoramic camera can include of a set of lenses and an image sensor. A pixel degradation curve associated with the image and/or the hardware of the panoramic camera can be determined, as can a sensor geometry of an image sensor used by the panoramic camera. A fixed smoothing function based on the pixel degradation curve and/or the sensor geometry can be created. The fixed smoothing function can be applied to a stereographic image to modify the image so it includes substantially uniform image detail per image region.

Abstract: A reflector can have a conical shape. The shape can tapers from a wide base to an apex. The apex can include an aperture, a mirror, and a set of one or more optical elements. A mirror is location in a cavity and is positioned within an overhang enclosure of the device in a plane approximately parallel to a circular cross section of the conical shape. The mirror can reflect environmental light that is reflected by the reflector into the aperture or reflect light emitting from the aperture onto the reflector. Stray light reflected by the mirror is absorbed by the cavity walls. A set of one or more optical elements can be positioned at least partially within a volumetric region of the reflector. The one or more optical elements focus light passing through the aperture to an image sensor.

Abstract: A quadric reflector can have an approximately conical shape. The shape can tapers from a wide base to an apex. The apex can include an aperture, a mirror, and a set of one or more optical elements. A mirror can be positioned within an overhang enclosure of the device in a plane approximately parallel to a circular cross section of the conical shape. The mirror can reflect environmental light that is reflected by the quadric reflector into the aperture or reflect light emitting from the aperture onto the quadric reflector. The overhang enclosure can have a substantially conical shape which eliminates secondary reflection resulting from the environmental light reaching the aperture twice. Using the overhang enclosure to absorb the secondary reflection eliminates or minimizes banding.