Patent classifications
G06V10/143
Spoof detection by comparing images captured using visible-range and infrared (IR) illuminations
Technology described herein can be embodied in a method for preventing access to a secure system based on determining a captured image to be of an alternative representation of a live person. The method includes capturing a first image and a second image of a subject illuminated by electromagnetic radiation in a first and a second wavelength ranges, respectively. The method also includes extracting, from the first image, a first portion representative of a sclera region of the subject, and from the second image, a second portion representative of the same region. It is determined that each of the first portion and the second portion includes features representative of vasculature in the sclera region, and in response, the subject in the image is identified to be an alternative representation of a live person. Upon search identification, the method includes preventing access to the secure system.
Recognition system employing thermal sensor
There is provided a recognition system adaptable to a portable device or a wearable device. The recognition system senses a body heat using a thermal sensor, and performs functions such as the living body recognition, image denoising and body temperature prompting according to detected results.
Method and device for measuring internal temperature of heap fermentation based on infrared temperature measurement
A device for measuring the internal temperature of heap fermentation includes an infrared thermal imaging camera, a distance detection camera, and a controller. The infrared thermal imaging camera obtains a temperature distribution image of a surface of a fermentation heap. The distance detection camera obtains a distance between the surface of the fermentation heap and the distance detection camera. The controller matches the temperature distribution image of the surface of the fermentation heap with the distance between the surface of the fermentation heap and the distance detection camera, performs semantic segmentation on the image after matching is completed, extracts a three-dimensional (3D) contour temperature map of the surface of the fermentation heap, corrects a surface temperature of the fermentation heap, and predicts an estimated internal temperature of the fermentation heap, such that the internal temperature of the fermentation heap is effectively and accurately predicted.
INFORMATION PROCESSING APPARATUS AND CONTROL METHOD
An information processing apparatus includes: a first sensor that outputs a first output signal obtained by photoelectrically converting visible light incident through a color filter; a second sensor that outputs a second output signal obtained by photoelectrically converting visible light incident through a color filter or a third output signal obtained by photoelectrically converting light including infrared light incident without going through the color filter; a first processor that generates first image data based on the first output signal, and second image data based on the second output signal or the third output signal; a memory that temporarily stores the first image data and the second image data; a second processor that generates image data obtained by fusing the first image data and the second image data.
IMAGING SYSTEM FOR A VEHICLE
An imaging system includes a mirror assembly. An imager is centrally disposed on the mirror assembly and configured to acquire an image of a biometric feature of a vehicle occupant within a field of view of the imager. A first light source is disposed within the mirror assembly and configured to project a ray of light onto a target surface corresponding to an eye of the vehicle occupant. The first light source is spaced from the target surface by a first distance. The first light source is spaced from the imager by a second distance. The ray of light forms an angle of incidence having legs extending from the target surface to the first light source and to the imager, and wherein the first distance and the second distance are operable to define the angle of incidence in the range of 5° to 15°.
Method and system for determining at least one property related to at least part of a real environment
A method for determining at least one property related to at least part of a real environment comprises receiving a first image of a first part of a real environment captured by a first camera, wherein the first camera is a thermal camera and the first image is a thermal image and the first part of the real environment is a first environment part, providing at least one description related to at least one class of real objects, wherein the at least one description includes at least one thermal property related to the at least one class of real objects, receiving a second image of the first environment part and of a second part of the real environment captured by a second camera, wherein the second part of the real environment is a second environment part, providing an image alignment between the first image and the second image, determining, for at least one second image region contained in the second image, at least one second probability according to the image alignment, pixel information of the first image, and the at least one description, wherein the at least one second probability relates to the at least one class of real objects, and wherein the at least one second image region comprises at least part of the first environment part, determining at least one image feature derived from pixel information of at least one third image region contained in the second image according to the at least one second probability, wherein the at least one third image region comprises at least part of the second environment part, and performing at least one computer vision method to determine at least one property related to at least part of the second environment part according to the determined at least one image feature.
Method and system for determining at least one property related to at least part of a real environment
A method for determining at least one property related to at least part of a real environment comprises receiving a first image of a first part of a real environment captured by a first camera, wherein the first camera is a thermal camera and the first image is a thermal image and the first part of the real environment is a first environment part, providing at least one description related to at least one class of real objects, wherein the at least one description includes at least one thermal property related to the at least one class of real objects, receiving a second image of the first environment part and of a second part of the real environment captured by a second camera, wherein the second part of the real environment is a second environment part, providing an image alignment between the first image and the second image, determining, for at least one second image region contained in the second image, at least one second probability according to the image alignment, pixel information of the first image, and the at least one description, wherein the at least one second probability relates to the at least one class of real objects, and wherein the at least one second image region comprises at least part of the first environment part, determining at least one image feature derived from pixel information of at least one third image region contained in the second image according to the at least one second probability, wherein the at least one third image region comprises at least part of the second environment part, and performing at least one computer vision method to determine at least one property related to at least part of the second environment part according to the determined at least one image feature.
Detecting device, detecting method, and recording medium
A light source (11) of a disguising mask detecting device (1) emits light at a person who is a subject. A camera (12) acquires images in multiple different wavelength ranges of reflected light of the light emitted at the person. A face detector (172) detects a face region of the person from the images acquired by the camera (12). A determiner (173) determines that the person is wearing a disguising mask when luminances of the face region in the images satisfy specific relations different from relations exhibited by skin.
Detecting device, detecting method, and recording medium
A light source (11) of a disguising mask detecting device (1) emits light at a person who is a subject. A camera (12) acquires images in multiple different wavelength ranges of reflected light of the light emitted at the person. A face detector (172) detects a face region of the person from the images acquired by the camera (12). A determiner (173) determines that the person is wearing a disguising mask when luminances of the face region in the images satisfy specific relations different from relations exhibited by skin.
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM
An image processing device is provided that can easily generate label data used for an object recognition technology using three-dimensional point cloud data. The image processing device (1) includes a three-dimensional point cloud obtaining unit (2), a two-dimensional label obtaining unit (4), and a label conversion unit (6). The three-dimensional point cloud obtaining unit (2) obtains three-dimensional point cloud data that represents a three-dimensional point cloud of an object. The two-dimensional label obtaining unit (4) obtains two-dimensional label data corresponding to a two-dimensional image of the object. The label conversion unit (6) associates the two-dimensional label data with the three-dimensional point cloud data, and converts the two-dimensional label data into three-dimensional point cloud label data that indicates a label of the three-dimensional point cloud.