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This paper presents a study on the radiation-induced trapped charges and the pixel parameter degradation of a 4T CMOS image sensor through the pixel bias voltage technique and trap-annealing. The bias voltage during the radiation has an effect on the yield of oxide trapped charges. The post-radiation shallow trapped charges can be quickly annealed at room temperature. The pixel dark random noise is...
We present a complementary metal-oxide semiconductor (CMOS) image sensor with non-uniform pixel placement that enables a highly efficient calculation of the discrete cosine transform (DCT), which is the most mathematically intensive step of an image compression algorithm. This technique is based on the arithmetic Fourier transform (AFT), which has been shown to be five times more computationally efficient...
The whistle repertoires of some dolphin species have been characterised and classified both qualitatively and quantitatively [1, 2, 3, 4, 5]; however, given the extensive range of the species relatively little is known about the acoustic repertoire of the Indo-Pacific humpback dolphin, Sousa chinensis [6, 7], particularly those in South-east Asia. Quantitative classification methods have been developed...
During the human-robot cooperation assembly process, detecting an operator's position not only protects the operator, but can also predict the operator's intention according to his position. This paper describes an image-based operator monitoring system based on the direct linear transformation (DLT) method. To overcome the changing light conditions in actual factories, a special color filter method...
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