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Based on the requirements of miniaturization, stability and definition of the image acquisition device, an embedded Linux image acquisition and display system based on embedded system is designed. The system hardware using ARM core S3C2440 microprocessor, USB camera and LCD display to build image acquisition and display system; the software system placed Linux system as the core is built. Build hardware...
Compressive sensing lets researchers reconstruct high-resolution data from fewer samples, which could alleviate the data deluge in large-scale and multimodal camera networks. The Web extra at http://youtu.be/oVwdIr836WI is a video demonstrating how compressive sensing lets researchers reconstruct high-resolution data from fewer samples, which could alleviate the data deluge in large-scale multimodal...
Aim at the demand for the image acquisition of the portable infrared camera, we design an embedded image acquisition system using ARM and TVP5150 decoder. The system designed in this paper is based on the processor of S3C6410 and the Windows CE 6.0 operating system and the driver is designed for the hardware platform. After the design, the application can realize the image acquisition very well. Through...
In view of the current situation of the less embedded Linux image acquisition application based on V4L2(Video for Linux Two), embedded image acquisition system based on V4L2 is designed. S3C6410 is adopted as hardware development platform and Linux as software platform. After loading the driver of CMOS camera OV9650 and other relative drivers, image acquisition applications on the basis of V4L2 is...
Acquisition of consistent multi-camera image data such as for time-slice sequences (widely known by their use as cinematic effects, e.g. in “The Matrix”) is a challenging task, especially when using low-cost image sensors. Many different steps such as camera calibration and color conformation are involved, each of which poses individual problems. We have developed a complete and extendable setup for...
This paper presents a LabVIEW application and a hardware module used for movement detection of objects in a surveillance area (nuclear plant perimeters, frontiers, etc.) The system use as sensor a single video camera connected to the PC on the USB interface. An external module connected to the parallel interface of PC is used to drive a stepper motor that provides the proper orientation of the video...
In several fields of medicine, transportation and security the instantaneous gaze direction of a person under supervision is of crucial importance. We developed a contactless stereoscopic video-based eye tracker which works without any individual calibration. In real time it delivers information about the gaze direction frame by frame. The introduced algorithms are designed for computing the gaze...
High dynamic range (HDR) images keep dynamic range of luminance from 105 to 108 and preserve more details than low dynamic range (LDR) images. Conventional acquisition of HDR images requires several images with different exposure settings of one scene, so multiple cameras or static scene are necessary. Besides, in order to transform HDR images onto normal LDR display, tone-mapping algorithms are required...
Embedded 32 bits multimedia micro-processor SPCE3200 designed by Sunplus company is used as controller and CMOS image sensor chip OV7720 is used for image acquisition by the system. The use of the eCos Configuration Tool of Embedded Configurable Operating System can configure the driver's attributes of CSI & OV7720. The camera equipment can be controlled and configured by the POSIX standard file...
In a system for active computer vision, there is an intrinsic need for interfacing two different kinds of specific hardware devices: image digitizer and controllable camera. The architecture of software components responsible for these interfaces must be carefully designed in order to achieve their scalability, testability, maintainability, reusability and portability. Hardware abstraction is a major...
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