Google Inc.

Snap-on Inc.

Bill Duran

Adrian Mircea Proca

Siddarth Raghunathan

Wei Zhong

Dale A Trsar

Keith A Kreft

Tyrone J Moritz

Jim J Cancilla

James M Normile

Nikhil Sathe

Robert Hoevenaar

Dennis G Williamson, Jr

Terry Ogilvie

Ken Wang

Robert P Edwards

Carl T Raff

Arnold Kop

An electronic device receives a first plurality of images of a scene captured by an image sensor of an electronic device, receives an ambient light level proximate to the electronic device, and determines whether the ambient light level is less than a first threshold value. In accordance with a determination that the ambient light level is less than the first threshold value, the electronic device detects motion in the scene based on one or more of the first plurality of images. In accordance with detecting motion in the scene, the electronic device receives a second plurality of images of the scene captured by the image sensor of the electronic device, forms a composite image from two or more of the second plurality of images, and causes the composite image to be presented for display on a user device.

Low frame rate night vision on video camera

Composite frame generation for low-light video monitoring

A system and method that provides adaptive IR illumination for a camera. In some implementations, IR illumination adapts to the objects in a scene being monitored and IR illumination adaptation may be implemented in conjunction with automatic exposure and other exposure adjustment methods. Some implementations include: illuminating a scene using a first IR illumination power; capturing a first image of the scene with a camera; and determining whether a first region of the first image is underexposed or overexposed. When the first region is underexposed, the scene is illuminated at a second power level greater than the first illumination power and a second image is captured. When the first region is overexposed, the scene is illuminated at a third power level that is less than the first illumination power and a third image is captured. The operations are repeated until scene illumination is satisfactory.

Adaptive infrared illumination for exposure correction

A method is executed at a camera operating in a night mode in which an IR filter is not interposed between a lens assembly and sensor arrays of the camera. In the night mode, the camera receives ambient light that is not filtered by the IR filter. For each image tile, the camera determines whether the ambient light received at the tile is due to an IR light source or a light source other than an IR light source and generates a respective mode change signal accordingly. A mode change parameter is then determined as a function of a total number of the mode change signals for image tiles of the camera. Based on the mode change parameter, the camera determines whether to continue the operation of the camera in the night mode or switch the operation of the camera from the night mode to a day mode.

Tile-based camera mode switching

A method is executed at a camera for controlling a camera mode. The camera is operated in a night mode in which an IR filter is not interposed between a lens assembly and a sensor array of the camera. While operating in the night mode, the camera receives at the sensor array ambient light that is not filtered by the IR filter, and determines whether the received ambient light is due to a light source other than an IR light source. The camera continues operation of the camera in the night mode when it is determined that the received ambient light is due to an IR light source. In some implementations, the camera switches the operation of the camera from the night mode to a day mode when it is determined the received ambient light is due to a light source other than an IR light source.

Camera mode switching based on light source determination

A method for controlling a camera mode is executed at a camera including a controller, a sensor array, an IR filter, and a lens assembly. The camera is operated in a night mode. While in the night mode the IR filter is not interposed between the lens assembly and the sensor array, the camera receives at the sensor array ambient light that is not filtered by the IR filter, determines whether the received ambient light is due to a light source other than an IR light source, and detects a light level of the received ambient light. The camera switches the operation of the camera from the night mode to a day mode when it is determined the received ambient light is due to a light source other than an IR light source and that the light level of the received ambient light exceeds a first threshold.

Day and night detection based on one or more of illuminant detection, Lux level detection, and tiling

Day and night detection based on one or more of illuminant detection, lux level detection, and tiling

A method, executed at a camera with a Night mode and a Day mode, determines when to switch from Night mode to Day mode using one or more of: illuminant detection (detecting the type of illuminant providing ambient light based on R/G and B/G component ratios of the ambient light), lux detection (detecting the ambient light level), and tiling (performing illuminant detection and/or lux detection for sub-regions of an image sensor array so as to detect localized/narrow beam/point light sources that only illuminate a portion of a scene or are directed at the camera lens). Based on identification of the illuminant type, switching from Night mode to Day mode is done at different lux levels for different types of illuminants. E,g. when the light is due to sunlight or incandescent light switching to Day mode is done at higher lux than when the light is from other sources of visible light.

An integrated diagnostic system includes interface connectors to connect to a plurality of instruments/instrument modules, including engine analyzers, gas analyzers, oscilloscopes, scanners, network connections, and/or other desired peripheral modules. These modules advantageously interface to the system through diverse parts, connections and with various protocols. The system may connect to a network, wired or wireless, for interfacing among processors and modules, and with an internet connection for interaction with remote resources including databases and expert systems.

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Santa Cruz, CA, United States of America

Bill Duran