A blind deconvolution algorithm based on the Richardson -Lucy deconvolution algorithm is presented. Its performance in the presence of noise is found to be superior to that of other blind deconvolution algorithms. Results are presented and compared with results obtained from implementation of a Weiner filter blind deconvolution algorithm. The algorithm is developed further to incorporate functional forms of the pointspread function with unknown parameters. In the presence of noise the point-spread function can be evaluated with 1.0% error, and the object can be reconstructed with a quality near that of the deconvolution process with a known point-spread function.

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In this paper measurements on several types of active matrix polymer LED (AMPLED) displays will be presented. The issues of image uniformity and polymer aging will be addressed by pixel circuit designs.

A new optical feedback pixel circuit is presented that enables a high degree of differential ageing correction, has low power consumption compared to standard AMOLED pixel circuits and enables a high degree of non‐uniformity correction. The circuit operation and the technology used to construct it will be described and results presented.

Abstract— We have developed a new multi‐head polymer OLED ink‐jet‐printing technology to make large‐screen OLED television displays. This printer is used to make a 13‐in.‐diagonal 16:9‐format polymer‐OLED prototype driven by an LTPS active matrix with a pixel circuit which compensates for TFT threshold‐voltage variations. A novel scrolling‐bar addressing scheme is used to reduce motion artifacts and to make sparkling images with a high local peak brightness. The scalability of the polymer‐OLED technology to larger sizes for television applications is discussed.

Image smear caused by frame transfer in CCD detectors is considered in terms of an image restoration problem, and an efficient method of achieving smear removal is described and demonstrated. A frequency analysis of the image smearing process identifies optimal regimes for the operation of the CCD.

Water‐use efficiency (WUE) may be a useful trait for improving productivity of cotton (Gossypium spp.) under certain water‐limited conditions, but it is difficult to measure in the field or in large controlled‐environment screening studies. Recently, an easily measured trait, the epidermal conductance of dark‐adapted leaves (gdark), was shown to be predictive of whole‐plant WUE in soybean [Glycine max (L.) Merr.]. Here, a greenhouse experiment was conducted using 22 cotton race stocks, converted lines, and commercial varieties to determine if the relationship between WUE and gdark previously observed in soybean also exists in cotton. A secondary objective was to determine if genotypic differences in WUE and gdark in cotton were constitutive in nature, or if they differed between water replete and drought conditions. There was significant genotypic variation for both WUE and gdark, and in both cases the lack of a treatment × genotype interaction indicated that the trait was constitutive. The relationship between WUE and gdark (r = −0.75, P < 0.0001) was very similar to that reported previously for soybean. Understanding the mechanistic link between gdark and WUE may provide further insight into the physiological basis of genotypic differences in WUE.

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