Smart camera

About: Smart camera is a research topic. Over the lifetime, 5571 publications have been published within this topic receiving 93054 citations. The topic is also known as: intelligent camera.

Multimodal Video Analysis on Self-Powered Resource-Limited Wireless Smart Camera

Abstract: Surveillance is one of the most promising applications for wireless sensor networks, stimulated by a confluence of simultaneous advances in key disciplines: computer vision, image sensors, embedded computing, energy harvesting, and sensor networks. However, computer vision typically requires notable amounts of computing performance, a considerable memory footprint and high power consumption. Thus, wireless smart cameras pose a challenge to current hardware capabilities in terms of low-power consumption and high imaging performance. For this reason, wireless surveillance systems still require considerable amount of research in different areas such as mote architectures, video processing algorithms, power management, energy harvesting and distributed engine. In this paper, we introduce a multimodal wireless smart camera equipped with a pyroelectric infrared sensor and solar energy harvester. The aim of this work is to achieve the following goals: 1) combining local processing, low power hardware design, power management and energy harvesting to develop a low-power, low-cost, power-aware, and self-sustainable wireless video sensor node for video processing on board; 2) develop an energy efficient smart camera with high accuracy abandoned/removed object detection capability. The efficiency of our approach is demonstrated by experimental results in terms of power consumption and video processing accuracy as well as in terms of self-sustainability. Finally, simulation results show how perpetual work can be achieved in an outdoor scenario within a typical video surveillance application dealing with abandoned/removed object detection.

System and method for pairing hand-held devices utilizing a front-facing camera

Abstract: A hand-held wireless communications device includes a camera integrated within a housing of the wireless communications device, a front-facing lens assembly to focus light onto the camera, a display, and a controller connected to the camera and the display. The controller controls the camera to capture an image of another device that is in front of its display. The device can then analyze the image to extract information specific to the other device, and utilize that information to identify and authenticate the other device. Once identified and authenticated, the devices are able to share data and information with each other.

Human body-mounted camera

Abstract: The camera, which is put on a user, shoots and processes image into image data and records the same. The camera has two or more operation modes and is provided with a detector for detecting either the motion state or the physiological state of the user or both of them and a controller for selecting one mode from among the operation modes on the basis of the detection results by the detector.

Keeping Multiple Moving Targets in the Field of View of a Mobile Camera

Abstract: This study introduces a novel visual servo controller that is designed to control the pose of the camera to keep multiple objects in the field of view (FOV) of a mobile camera. In contrast with other visual servo methods, the control objective is not formulated in terms of a goal pose or a goal image. Rather, a set of underdetermined task functions are developed to regulate the mean and variance of a set of image features. Regulating these task functions inhibits feature points from leaving the camera FOV. An additional task function is used to maintain a high level of motion perceptibility, which ensures that desired feature point velocities can be achieved. These task functions are mapped to camera velocity, which serves as the system input. A proof of stability is presented for tracking three or fewer targets. Experiments of tracking eight or more targets have verified the performance of the proposed method.

System and method for servoing on a moving fixation point within a dynamic scene

Abstract: A system and method for servoing on a moving target within a dynamic scene. According to one embodiment, the system includes a master variable pointing camera system and a plurality of slave variable pointing camera systems positioned around the scene. The system also includes a master control unit in communication with the master variable pointing camera system. The master control unit is for determining, based on parameters of the master variable pointing camera system, parameters for each of the slave variable pointing camera systems such that, at a point in time, the master variable pointing camera system and the slave variable pointing camera systems are aimed at the target and a size of the target in an image from each of the master variable pointing camera system and the slave variable pointing camera systems is substantially the same. The system also includes a plurality of slave camera control units in communication with the master control unit. The slave camera control units are for controlling at least one of the slave variable pointing camera systems based on the parameters for each of the slave variable pointing camera systems. The system may also include a video image sequence generator in communication with the master control unit and the slave camera control units. The video image sequence generator may generate a video image sequence of the target by outputting an image from certain of the master variable pointing camera system and the slave variable pointing camera systems in sequence according to the position of the master variable pointing camera system and the slave variable pointing camera systems around the scene.