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An extremely low temporal noise and wide dynamic range CMOS image sensor is developed using low-noise transistors and high gray-scale resolution (17b) folding-integration/cyclic ADC. Two types of pixel are designed. One is a high conversion gain (HCG) pixel with removing the coupling capacitance between the transfer gate and the floating diffusion, and the other is a pixel for wide dynamic range (WDR)...
Image matching is an important topic in the field of image processing, and it is widely used in image registration and image fusion. An image fast template matching algorithm based on projection and sequential similarity detecting is proposed. The algorithm employs the strategy of image template matching that is from sketch matching to detail matching. Firstly the real-time images are projected to...
We compared the performance of SI-GaAs stripline antennas with different gaps, the widths of electrodes and electrode material by experiment. Large gap antenna have high electrical to terahertz (THz) and optical to THz conversion efficiency. The dynamic range of antenna with 150 mum gap, 100 mum Au/Ge/Ni electrodes and heat sink is 6300 without purging.
The performance requirements of next-generation CMOS image sensors (CIS) have been increasing in terms of frame rate, read noise, dynamic range, as well as pixel resolution. In order to satisfy strict specifications, a column-parallel ADC is a key element in a state-of-the-art CIS. However, this architecture leads to side-effects such as vertical fixed pattern noise (VFPN) and read noise. In order...
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