Devices and techniques are described for validation of depth data. A first pattern and second pattern may be projected. A first image of the first pattern and a second image of the second pattern may be captured. A first code word may be determined for a first pixel address based on a first value of the first pixel address in the first pattern and a second value of the first pixel address in the second pattern. A third pattern may be projected. A second code word may be determined for the first pixel address based on a third value of the first pixel address in the third pattern and the second value of the first pixel address in the second pattern. A confidence value of the first pixel address may be assigned based on the first code word and the second code word corresponding to the same projector column.

A window for resistive heating and a camera apparatus including a window for resistive heating. The window includes a transparent member having an outer edge, wherein the transparent member is made of a first material, wherein the first material is a low conductivity material; and at least one set of two conductive pads disposed on the outer edge of the transparent member and electrically coupled to at least one source of electricity, wherein each conductive pad is made of a second material, wherein matter disposed on the transparent member is removed via resistive heating when electricity is conducted from the at least one source through the at least one set of two conductive pads and the transparent member.

The present invention provides a method and a device for calibration applied to the field of image processing. The method includes: acquiring a common two-dimensional image and an infrared image of a calibration object, wherein the calibration object carries a first pattern; calculating coordinates of the first pattern in the common two-dimensional image, acquiring coordinates of the first pattern in a global coordinate system, and calculating intrinsic parameters of a first camera device capturing the common two-dimensional image; and calculating coordinates of the first pattern in the infrared image, acquiring the coordinates of the first pattern in the global coordinate system, and calculating intrinsic parameters of a second camera device capturing the infrared image. The method for calibration is capable of enhancing calibration efficiency by a simple calibration method when calibrating a depth camera device.

Systems and methods directed toward acoustic analysis can include a plurality of acoustic sensor arrays, each including a plurality of acoustic sensor elements, and a processor in communication with the plurality of acoustic sensor arrays. The processor can be configured to select one or more of the plurality of acoustic sensor arrays based on one or more input parameters, and generate acoustic image data representative of an acoustic scene based on received acoustic data from the selected one or more acoustic sensor arrays. Such input parameters can include distance information and/or frequency information. Different acoustic sensor arrays can share acoustic sensor elements in common or can be entirely separate from one another. Acoustic image data can be combined with electromagnetic image data from an electromagnetic imaging tool to generate a display image.

Various wall-mounted cameras are disclosed that have embedded computer systems that functionally link the camera to various electronic devices, such as switches, lights, passive infra-red devices, and remote computer systems. The wall-mounted camera could be triggered by passive infra-red devices, which cause the camera to record video streams and transmit them to remote computer systems for analysis and triggering of alternative systems.

A device (1) for gas measurement in a measuring environment (7) with a first camera (3) configured to detecting an invisible image area (33) in the measuring environment (7) and with a second camera (5) configured to detecting a visible image area (55) in the measuring environment (7). A control unit (13) initiates a detection of invisible image information (33) within at least one detection area (11, 33, 55) and a detection of visible image information (55) in the detection area (11, 33, 55). The control unit (13) determines special image areas (66), which indicate individual persons (9) or a plurality of persons (9). The control unit (13) is configured to determine at least one gas concentration (21) on the basis of the image information (33), taking into account the special image areas (66).

A method of calculating depth information for a three-dimensional (3D) image includes generating a pattern based on the value of at least one cell included in a two-dimensional (2D) image, projecting the pattern, capturing a reflected image of the pattern, and calculating depth information based on the reflected image of the pattern.

A system and a method for detecting and determining predetermined conditions related to a human occupant in a predetermined space includes one or more microphones for receiving sounds from within the predetermined space, and for transmitting received sounds to a received sound processor. The received sound processor is responsive to the received sounds, for determining at least one predetermined condition related to human occupant in the predetermined space. The system may further include an imager, a range-finder, a calibration factor and a processer. Images are taken of a space and corrected based on the appropriate calibration factor based on the output of the range-finder. The images are analyzed and compared to characteristics representative of certain events including falls. If the images match the particular characteristics, the system concludes that an event has occurred and outputs this result. An alarm may be generated if the system detects certain events.

By forming an infrared light emitting surface 21 on the front side of a display 11, irradiating the infrared light emitting surface 21 with infrared light, forming a reproduced image R2 of the infrared light emitting surface 21 at a position of a reproduced image R1, and photographing, through an infrared camera 26 provided at the back of the reproduced image R1, reflected light from the reproduced image R2 of the infrared light emitting surface 21 in the case where an indicating means such as a finger indicates the reproduced image R1, a position of the indicating means in contact with the reproduced image R1 becomes detected. An extremely hygienic method and apparatus for contactlessly detecting an indicated position on a reproduced image with which an input without touching a display is enabled can thereby be provided.

A system for monitoring a driver of a vehicle is provided. The system includes an infrared flash to beam an infrared light at the driver; an infrared camera to capture the reflection from the beam; and a reflective infrared film adhered to a windshield of the vehicle. A method for implementing a driver monitoring system is provided. The method includes installation of an infrared reflective layer on a vehicle; installing an infrared camera and an infrared flash in a dashboard of the vehicle; and orientating either the infrared camera or the infrared flash in a direction facing the infrared reflective layer.