To improve the classification accuracy rate of apple leaf disease images and solve the problem of dimension redundancy in feature extraction, Karhunen-Loeve (K-L) transform and sparse representation are applied to apple leaf disease recognition. Firstly 9 color features and 8 texture features of disease leaf images are extracted and taken as feature vectors after dimensionality reduction by the...

In this paper, we propose a type of joint feature with geometric parameters and color moments to represent the speaking-mouth frames for image-based visual speech synthesis systems. Based on FDP around the mouth area, the geometric feature is obtained by computing Euclidean distances to describe the width of the speaking mouth, the height of the outer and inner lips and the distances between th...

In this paper, we adopt local Fourier transform as a texture representation scheme and derive eight characteristic maps for describing different aspects of co-occurrence relations of image pixels in each channel of the (SVcosH, SVsinH, V) color space. Then we calculate the first and second moments of these maps as a representation of the natural color image pixel distribution, resulting in a 48...

the objective of this study was to determine the allowed and desired limits for heavy soils of texture (clay loom), as it has operational capability (friability), these limits were 6.34 mm for planting and 10.62 mm for harvesting in each raining or irrigation episode. we determined some factors that affect soil wetness and water content as follow: the amount and severity of rain, the condition ...

in order to evaluate of abscisic acid, paclobutrazol and uniconazole hormones effects on the egyptian broomrape (orobanche aegyptiaca. pers) control and growth indexes of tomato (lycopersicon esculentum mill.), a glasshouse experiment was conducted in crd design with four replications. treatments consisted of abscisic acid in 4 levels (1, 3, 5 and 7 mm), paclobutrazol in 2 levels (0.1 and 0.01 ...

the selection of a growing medium is one of the most important decisions in the culture of hydroponic crops. in order to select a suitable medium for hydroponic cucumber (cucumis sativus l. cv. negin), an experiment was carried out on growing media containing different particle sizes of perlite and organic substrates in a run-to-waste system in a greenhouse experiment. the growing media tested ...

Bogor Regency is one of the regions in Indonesia that produces quite large noni fruits. Noni fruit a plant has benefits as medicine and often used traditional medicine. This study aimed to determine diversity plants Ciampea, Regency, based on characteristic morphology. The methods are survey methods, characterization, interviews with farmers. Purposive Random Sampling method create sample. morp...