This paper illustrates the development of a system to measure the variation in yarn parameters using image processing with the help of a low cost USB web camera along with a yarn moving arrangement. The complete system comprises of yarn guides and tension control device, motor with gear box, monitor for displaying yarn parameters etc. The system enables to develop yarn diameter spectrogram and ...

In this paper, an automatic method of counting the passing people through the gate by using two space-time images is proposed. In the proposed method, the images are obtained in series by using a camera which is hung straight from the ceiling of the gate, so that the data of the passing people are not overlapped each other in the images. First, a spacetime image which includes the data of the p...

this paper gives a novel approach towards real-time speed estimation of multiple traffic vehicles using fuzzy logic and image processing techniques with proper arrangement of camera parameters. The described algorithm consists of several important steps. First, the background is estimated by computing median over time window of specific frames. Second, the foreground is extracted using fuzzy si...

We present a highly miniaturized camera, mimicking the natural vision of predators, by 3D-printing different multilens objectives directly onto a complementary metal-oxide semiconductor (CMOS) image sensor. Our system combines four printed doublet lenses with different focal lengths (equivalent to f = 31 to 123 mm for a 35-mm film) in a 2 × 2 arrangement to achieve a full field of view of 70° w...

The advent of spacecraft mobile robots—free-flying sensor platforms and communications devices intended to accompany astronauts or remotely operate on space missions inside and outside of spacecraft—has demanded the development of a simple and effective navigation. One such system under exploration involves the use of a lasercamera arrangement to predict relative positioning of the mobile robot...

In this paper we investigate accuracy limits for 3-D rigid body motion estimation under perspective projection. Our approach is based on the observation that due to the discrete pixel nature of the image data the epipolar lines in real images can be represented by corresponding discrete line segments. We employ the theory of Farey series to derive subspaces in the motion parameter space that ca...

Recent developments in the technology of optical digital sensors made available digital cameras with medium format at favourable cost/benefit ratio. Many companies are using professional medium format cameras for mapping and general photogrammetric tasks. Image acquisition systems based on multi-head arrangement of digital cameras are attractive alternatives enabling larger imaging area when co...

This paper presents faults inspection scheme on cigarette packet on LabVIEW platform. The objectives of the proposed work are: (i) to count the number of cigarettes in an open packet, (ii) to check defect in the barcode, and (iii) to check defects on the label of the packet. A smart camera (from NI, India) is used to capture images from the required parts of the cigarette packets. These images ...

In this paper we describe the Automatic Task Demonstration Generator (ATDG), a system implemented into a software prototype for teaching the operation of a robot manipulator deployed on the International Space Station (ISS). The ATDG combines the use of path planning and camera planning to take into account the complexity of the manipulator, the limited direct view of the ISS exterior, and the ...