To test high resolution and dynamic performance of star sensor, a method of consideration image motion on Modeling the motion blur of star sensor is proposed. Firstly, image motion geometric model based on the rotation of Starlight vector is studied. Secondly, with the help of the normal distribution of static star image energy model, introducing the star image motion speed, obtaining the energ...

The paper presents a methodology to reduce the energy consumption of visual sensor node in wireless sensor networks. This methodology, based on a balancing between processing and transmission tasks, can be applied in all those situations where subjective image based measurements are required. Considering that in a sensor node, the transmission task is the most energy consumption, the proposed m...

Abstract We have developed an on-chip image sensor with target applications of on-chip biomolecular and neural imaging. The sensor pixel can sense not only intensity of incident light, but also on-chip electric potential. The light shield structure on the pixel circuit was used as a sensing electrode. Once the passivation layer on the sensing electrode was removed, one can perform on-chip volta...

Large image sensors usually contain some defects. Defects are pixels with abnormal photo-responsibility. As a result they often generate outputs different from their adjacent pixel outputs and seriously degrade the visual quality of the captured images. However, it is not economically feasible to produce sensors with no defects for rendering images. A limited number of defects are usually allow...

For a variety of image processing tasks, such as biological vision modeling, stereo range finding, pattern recognition, target tracking, and transmission of compressed images, it is desirable to have image data available at varying resolutions to increase processing speed and efficiency. The user can then obtain a frame of data at the lowest resolution necessary for the task at hand and elimina...

There has been an active development toward the extraction of human image by measuring heat sources with infrared rays. This is because infrared rays are more effective at detecting human than visible light. Detection of position and posture of occupants using low resolution sensor is proposed. The proposed system can measure the position and posture of occupants from data using a sensor. Other...

processing. Real-time image processing system pro­ ceeds in three steps; transducing, read-out and pro­ In this paper, we propose novel image sensors which cessing. The high bandwidth required to transfer data compress image signal. By making use of very fast from the sensor to the processor is also a fundamen­ analog processing on the imager plane, the compres­tal disadvantage of the paradigm ...