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Shape based leaf image retrieval
IEE Proceedings - Vision, Image, and Signal Processing, 2003The authors present an efficient two-stage approach for leaf image retrieval by using simple shape features including centroid-contour distance (CCD) curve, eccentricity and angle code histogram (ACH). In the first stage, the images that are dissimilar with the query image are first filtered out by using eccentricity to reduce the search space, and ...
Z. Wang, Z. Chi, D. Feng
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Archives of Dermatology, 1968
White macules are present in more than 50% of the patients with tuberous sclerosis when no other visible lesions typical of tuberous sclerosis have appeared; the majority, if not all, of the white macules appear at birth. In fair-skinned infants the lesions may be easily overlooked and may only be detected with Wood's light.
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White macules are present in more than 50% of the patients with tuberous sclerosis when no other visible lesions typical of tuberous sclerosis have appeared; the majority, if not all, of the white macules appear at birth. In fair-skinned infants the lesions may be easily overlooked and may only be detected with Wood's light.
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Leafing through Irregular Shapes
Mathematics Teaching in the Middle School, 2015By the time middle school students start a prealgebra course, they should have explored a variety of familiar two-dimensional and three-dimensional shapes and should have been exposed to the concepts of perimeter, area, and volume. They know that they can assign numerical values to some attributes of a shape, such as length and surface area.
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Automatic leaf shape category discovery
2016 23rd International Conference on Pattern Recognition (ICPR), 2016Categorical description of leaf shapes is of paramount importance in agriculture and plant sciences. Traditionally, these descriptions have been based on categorical systems proposed by domain experts. Despite the importance of these visual descriptive systems, these approaches may be limited by the representation of unknown shapes as expected in ...
Leonel Olivares +2 more
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Classification of leaf shapes and estimation of leaf mass
2012 International Conference on Green and Ubiquitous Technology, 2012The goal of classifying leaves is to find potential correlation between visually-unrelated leaves and link them with leaf mass. We apply cluster analysis to distinguish over 20 typical kinds of leaves extracted from arbor species. This approach can preferably rule out odd-shaped leaves and classify them according to the metrics.
Yelin Hong, Zhengyu Chen, Junhua Qiu
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LEAF SHAPE INHERITANCE IN COLEUS
1971(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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