截止吸收型颜色玻璃的着色技术

研究了着色剂加入量对玻璃着色的影响和着色剂配比、热处理条件等对玻璃光截止吸收性能的影响。结果表明,着色剂Se加入的质量分数为0 6%左右,着色剂CdS加入的质量分数为0 6%～1 0%时,能制备出着色均匀的颜色玻璃;玻璃的光截止吸收性能主要取决于Se与CdS质量比和热处理条件;采用光谱纯着色剂可以明显提高玻璃的光透过效率。

广告语体“随机造词”现象及其动因探析——以广告语体中的写意型三音节颜色词为例

本文以广告语体中的一类新型颜色词——写意型三音节颜色词为研究对象,对该类词中出现的"随机造词"现象进行分析,并从语言学动因和社会动因两大方面探讨"随机造词"现象产生的原因。

颜色指示型智能包装监测生鲜肉新鲜度的研究进展

颜色指示型智能包装作为一种新型的包装方式,可以帮助消费者更加直观地判断生鲜肉制品新鲜程度,具有尺寸小、成本低和直观准确等优点。本文在介绍颜色指示型智能包装原理的基础上,对指示剂类型和基材进行综述,同时系统论述了其在生鲜肉新鲜度监测中应用的研究进展,指出该包装方式在实际应用中存在的局限性,并对其未来的发展进行展望,以期为颜色指示型智能包装在监测生鲜肉新鲜度中的应用和推广提供理论参考。

利用计算机视觉技术量化解析食物颜色与斜纹夜蛾幼虫体色变化的关系

【目的】为了明确食物颜色对不同日龄昆虫体色的影响,并推广利用计算机视觉研究昆虫体色的技术。【方法】本研究以斜纹夜蛾Prodenia litura幼虫为实验材料,采用计算机定量分析的方法,对取食不同颜色型人工饲料的斜纹夜蛾幼虫头部、胸部斑纹、胸腹部和背中线的红色（R）、绿色（G）、蓝色（B）和明度（L）值进行了定量化分析。【结果】结果表明：幼虫的斑纹、胸腹部背面及侧面主色和背中线的R,G,B和L值随日龄增加而下降;头部R,G,B和L值在1-3日龄增加,后随日龄的增加而下降。幼虫体色变化也受食物颜色的影响,以对1-7日龄的影响为最大;红色型食物r∶g∶b=（128-251）∶（3-129）∶（6-96）对幼虫各部位体色的影响大于黄色、绿色和紫色的食物;幼虫取食不同颜色型食物后,各部位的变异系数大小依次为：斑纹〉胸腹部〉头部〉背中线。最后,建立了幼虫体色与食物色彩r,g,b值及日龄的回归方程。【结论】斜纹夜蛾幼虫体色受到食物颜色的影响,且在低龄时更为显著。

不同类型樟子松无性系生长状况分析

根据樟子松雄孢子初期颜色，可将樟子松划分为绿、红、粉３种类型。通过统计分析，从木材生产量考虑，绿色型为优良类型。３种类型无性系的生长状况表明，此种划法是可靠的，而在绿型樟子松中，尤以黑色种子型的樟子松为优。

赤水乌骨鸡不同产蛋期蛋壳颜色的测定

为探究不同产蛋时期赤水乌骨鸡绿壳蛋颜色的数值及变化规律,试验选取360只赤水乌骨鸡所产的600枚鸡蛋,利用NR型蛋壳颜色色差计分别测定180、360、540日龄的蛋壳颜色△L;值,每个时期测定200枚鸡蛋。结果:180日龄蛋壳颜色△L;值为49.47±3.14,360日龄为52.39±2.93,540日龄为54.12±2.77,各日龄组之间△L;值差异极显著(P<0.01)。整个产蛋期蛋壳颜色△L;值主要集中在50~55之间。随着日龄的增加,蛋壳绿色逐渐变浅。

New Color-Difference Formula Based on CIECAM97s

To deduce a new color difference formula based on CIE 1997 Color Appearance Model(CIECAM97s), a color space J a 1 b 1 is first constructed with color appearance descriptors J,a,b in CIECAM97s. The new formula is then deduced in the space and named CDF CIECAM97s. The factors for lightness, chroma and hue correction in the formula are derived by linear regression according to BFD? CP data sets. It is found by statistical analysis that CDF CIECAM97s is in closer accordance with the visual assessments when compared with CMC(1∶1), CIE94 and CIE L *a *b * color difference formulae. Based on color appearance model, the new color difference formula can be used to predict color difference perception in a varity of different viewing conditions.

Sensitivity of the suspected blood indicator:An experimental study

AIM： To investigate whether suspected blood indicator （SBI） in capsule endoscopy （CE） is affected by back- ground color and capsule passage velocity. METHODS： Experimental models of the small intestine constructed from paper in a variety of colors were used to simulate the background colors observed in CE im- ages. The background colors studied included very pale yellow, yellow, very pale magenta, light grayish pink, burnt sienna, and deep and dark brown, and red spots were attached inside them. An endoscopic capsule was manually passed through the models. The rate of detection of the red spots by the SBI was evaluated based on the colors of the models and the capsule pas- sage velocities （0.5 cm/s, 1 cm/s, and 2 cm/s）.RESULTS： The rate of detection of the red spots byground color of the model （P 〈 0.001）. Detection rates were highest for backgrounds of very pale magenta, burnt sienna, and yellow, in that order. They were lowest for backgrounds of dark brown and very pale yellow. The rate of detection of red spots by the SBI tended to decrease at rapid capsule passage velocities （1-2 cm/s） compared to slow velocities （0.5 cm/s） for backgrounds of very pale yellow （P = 0.042）, yellow （P = 0.001）, very pale magenta （P = 0.002）, and burnt sien- na （P = 0.001）. No significant differences in the rate of detection were observed according to velocity for light grayish pink （P = 0.643） or dark brown （P = 0.396）. CONCLUSION： SBI sensitivity was affected by back- ground color and capsule passage velocity in the models. These findings may facilitate the rapid detection of bleeding lesions by CE.

EFFECTIVE APPEARANCE MODEL FOR PROBABILISTIC OBJECT TRACKING

This paper presents a robust object tracking approach via a spatially constrained colour model. Local image patches of the object and spatial relation between these patches are informative and stable during object tracking. So, we propose to partition an object into patches and develop a Spatially Constrained Colour Model (SCCM) by combining the colour distributions and spatial configuration of these patches. The likelihood of the candidate object is given by estimating the confidences of the pixels in the candidate object region. The appearance model is learnt from the first frame and the tracking is carried out by particle filter. The experimental results show that the proposed tracking approach can accurately track the object with scale changes, pose variance and partial occlusion.

Exploring High Strangeness Dibaryons with the Extended Quark Delocalization andColor Screening Model

Promising high strangeness dibaryons are studied by the extended quark delocalization and color screeningmodel. It is shown that besides H particle and di-Ω, there might be other dibaryon candidates worth to be searchedexperimentally such as NΩ.

Tracking of human head with particle filter

To cope with the problem of tracking a human head in a complicated scene,we propose a method that adopts human skin color and hair color integrated with a kind of particle filter named condensation algorithm.Firstly,a novel method is presented to set up human head color model using skin color and hair color separately based on region growing.Compared with traditional human face model,this method is more precise and works well when human turns around and the face disappears in the image.Then a novel method is presented to use color model in condensation algorithm more effectively.In this method,a combination of edge detection result,color segmentation result and color edge detection result in an Omega window is used to measure the scale and position of human head in condensation.Experiments show that this approach can track human head in complicated scene even when human turns around or the distance of tracking a human head changes quickly.

Inheritance of Seed Color and Luster in Mungbean(Vigna radiata)

The inheritance of seed color and seed luster of mungbean was studied by using accessions/varieties with different seed color,black (Bkck),green (KPS1) and green (KPS2).In KPS2×Bkck combination,the p2 seed color was shiny black.The F3 data indicated the following genotype:3B-for black seed color,and 1 bb for green seed color.Plant purple petiole gene and black seed color gene were very close linkage.There was no segregation between them.Perhaps the same gene B controlled the color of purple petiole.Moreover in KPS1X Bkck combination F3 seed color popuktion showed a wide rang of phenotypic variability.Perhaps seed luster was controlled by more than two genes.

Analysis of Morphological Processes in a Disturbed Gravel-Bed River （Piave River）： Integration of LiDAR Data and Colour Bathymetry

The magnitude of river morphological changes are better analyzed through the use of quantitative approaches, wherein resolution accuracy and uncertainty assessment are treated as crucial key-factors. In this sense, the creation of precise DEMs （Digital Elevation Models） of rivers represents an affordable tool to analyze geomorphic variations and budgets, except for wetted areas, where reliable channel digitalization can normally be obtained only using expensive bathymetric surveys. The proposed work aims at improving channel surface models without having available bathymetric sensors, by deriving dry areas elevations from LiDAR data and water depth of wetted areas from aerial photos through a predictive depth-colour relationship. The methodology was applied to two different sub-reaches of the Piave River, a gravel-bed river which suffered severe flood events in 2010. Erosion and deposition patterns were identified through DEM differencing, showing a predominance of scour processes which can lead to channel instability situations. The bathymetric output was compared to other previously-derived models confirming the accuracy of the in-channel elevation estimates. Finally, a discussion on the role played by longitudinal protections during the studied flood events is proposed, focusing the attention on the incidence of two major bank erosions that removed significant volumes of stable areas.

Soft measurement for component content based on adaptive model of Pr/Nd color features

For measurement of component content in the extraction and separation process of praseodymium/neodymium(Pr/Nd), a soft measurement method was proposed based on modeling of ion color features, which is suitable for fast estimation of component content in production field. Feature analysis on images of the solution is conducted,which are captured from Pr/Nd extraction/separation field. H/S components in the HSI color space are selected as model inputs, so as to establish the least squares support vector machine(LSSVM) model for Nd(Pr) content,while the model parameters are determined with the GA algorithm. To improve the adaptability of the model,the adaptive iteration algorithm is used to correct parameters of the LSSVM model, on the basis of model correction strategy and new sample data. Using the field data collected from rare earth extraction production, predictive methods for component content and comparisons are given. The results indicate that the proposed method presents good adaptability and high prediction precision, so it is applicable to the fast detection of element content in the rare earth extraction.

Colorfulness Enhancement Using Image Classifier Based on Chroma-histogram

The paper Proposes a colorfulness enhancement of pictorial images using image classifier based on chroma histogram. This approach firstly estimates strength of colorfulness of images and their types. With such determined infomation, the algorithm automatical- ly adjusts image colorfulness for a better natural image look. With the help of an additional detection of skin colors and a pixel chroma adaptive local processing, the algodtlan produces more natural image look. The algorithm perfomance had been tested with an image quality judgment experiment of 20 persons. The experimental result indicates a better image preference.

Kinetic Study of Color Changes of Tomato Purees with Microwave and Conventional Drying

Kinetics of color change in tomato purees dried using microwave and conventional method were investigated. For this purpose, the color parameters of Hunter L,a,b and browning index （A42o）, and estimated values of chroma, hue angle, AE, Hunter a/b and a ~ b were examined. The changes in color of tomato samples followed both zero and first order kinetic models to describe visual color changes, and ＆E parameters followed first order kinetic. It was concluded that Hunter axb parameters can be used adequately to follow up the color change of tomato samples during the drying.

New Environmental Friendly Yellow Ceramic Pigments of the Type （Fe^ⅢM^Ⅴ）-TiO2

The family of Cr（Ⅲ） and Fe（Ⅲ）-doped rutile pigments of nominal composition （M^ⅢM^V）xTi1-2xO2, with M^Ⅲ = Cr（Ⅲ） or Fe（Ⅲ） and M＇（V） = Sb, Nb, Ta, with x = 0.03, 0.15 and 0.25 were investigated as ceramic pigments covering the yellow-ochre-brown palette. The formulations containing Fe（Ⅲ） are novel compositions not included in the commercial rutile pigments. The materials were characterized by XRD （X-ray diffraction） analysis and FTIR （Fourier transformed infrared spectroscopy）. The transition temperature from anatase-to-rutile was estimated by the evolution of the spectral patterns. This crystal phase transition is responsible of the color formation. A higher distortion of TiO6 octahedra is observed in the case of （FeSb） containing cells which contribute to the enhancement of the light absorption. The coloring performance of all the formulations were evaluated by enameling the mixtures containing 5% pigments and commercial frits representative of single and double firing industrial processes. The chromatic values obtained are in the yellow to brown domain of the chromatic plot, depending on the composition of the pigment-frit batch. In the case of the Fe-glazes, and particularly the combination （FeNb）, the chromatic values are close to the best yellow tinting. This new FeNb-rutile pigment could be a more benign substitute of Cr-yellow pigments. The homogeneity of the enamels was confirmed by SEM （scanning electron microscopy）-EDAX （energy dispersive X-ray analysis） microscopy.

A Batesian mimic and its model share color production mechanisms

Batesian mimics are harmless prey species that resemble dangerous ones （models）, and thus receive protection from predators. How such adaptive resemblances evolve is a classical problem in evolutionary biology. Mimicry is typically thought to be difficult to evolve, especially if the model and mimic produce the convergent phenotype through different proximate mecha- nisms. However, mimicry may evolve more readily if mimic and model share similar pathways for producing the convergent phenotype. In such cases, these pathways can be co-opted in ancestral mimic populations to produce high-fidelity mimicry with- out the need for major evolutionary innovations. Here, we show that a Batesian mimic, the scarlet kingsnake Larnpropeltis elap-soides, produces its coloration using the same physiological mechanisms as does its model, the eastern coral snake Micrurus fulvius. Therefore, precise color mimicry may have been able to evolve easily in this system. Generally, we know relatively little about the proximate mechanisms underlying mimicry .