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.

System and method of using range image data with machine vision tools

Abstract: A system and method for using a machine vision system to locate and register patterns in an object using range data is provided. The machine vision system includes an acquisition system for acquiring a range image of an object. The system also includes a machine vision search tool coupled to the acquisition system for locating an instance of a trained pattern in the image. The tool registering the trained pattern transformed by at least two translational degrees of freedom and at least one non-translational degree of freedom with respect to an image plane. The acquisition system preferably includes a three-dimensional camera.

Optical Superresolution Using Solid-State Cameras And Digita; Signal Processing

Abstract: A common problem in optical metrology is the determination of the exact location of an edge (a black/white transition). The use of cameras for this task has been restricted in the past because of their limited number of pixels and the lack of methods for subpixel accuracy edge detection. Analysis of the optical and electronic parts of modern solid-state cameras shows that it is possible to determine the exact location of an edge to subpixel accuracy, independently of the system's modulation transfer function. A novel algorithm for this purpose is presented together with an expression for the precision of the edge location as a function of pixel noise and edge step height. Experimental verification was carried out using a modified CCD camera coupled to an intelligent framestore (smart camera). Under optimum conditions the measured accuracy for the edge position was better than 1/140 of the pixel period, corresponding to less than 120 nm on the sensor surface of the camera. Applications of this novel method in metrology and micrometrology are discussed.

VLIW processor architecture adapted to FPAs

Abstract: A new processor architecture intended to be integrated with a CMOS image sensor is presented. This association allows to design an intelligent camera that can perform on-chip image processing tasks. The processor is based on a VLIW architecture with a reduced instruction bus, able to execute multiple instructions in parallel without any loss of performance. In addition, no more instruction cache is required, thus decreasing the hardware complexity.

An inexpensive stereoscopic vision system for robots

Abstract: A relatively low cost stereoscopic vision system has been constructed here at the University of Alabama in Huntsville, using a video camera interfaced to a microcomputer. A motor driven mirror assembly attached to the camera is used to obtain the stereoscopic images. In the preliminary studies, an APPLE II microcomputer fitted with a DITHERTIZER II board was used for digitizing the video images. With its 280 × 192 resolution, we are able to measure distances with an accuracy of 8%. Currently, an IBM PC fitted with a VAN GOGH board by TECMAR having a resolution of 256 by 256 is used in place of the APPLE system. Using this system, much better results are obtained. The end system will be integrated to a Cincinnati Milacron T3industrial robot. In order to meaningfully utilize the information provided by the various subsystems interfaced to the robot, a three level hierarchical distributive system is being set up, using a PDP 11/34 minicomputer as the supervisory computer.

Control system for digital camera and control method for the same

Abstract: A control system for digital camera makes it possible to control a digital camera from a personal computer and to operate the digital camera simultaneously from both of the digital camera side and the personal computer side by means of performing a communication between the digital camera on which a WWW server function is equipped and the personal computer having a WWW browser function.