Chain code is an image representation which can be used to represent a shape of object or structure and also to represent connectivity between lines in the image boundary. It can be used in various applications because of its ability for information preservation and allows considerable storage space reduction for properties data image shape. This representation also can be applied in image proc...

[1] Valley networks, regional drainage patterns suggesting liquid water stability at the surface, are confined to early in the history of Mars (the Noachian/Hesperian boundary and before), prior to a major climate transition to the hyperarid cold conditions of the Amazonian. Several later fluvial valley systems have been documented in specific Hesperian and Early Amazonian environments, and are...

38 39 Magellania venosa, the largest recent brachiopod (Davidson 1886, McCammon 1973), 40 occurs in clusters and banks in population densities of up to 416 ind m-2 in the fjord Comau, 41 northern Chilean fjord region. Below 15 m depths, it co-occurs with the mytillid Aulacomya 42 atra and dominates the benthic community below 20 m. To determine the question why 43 Magellania venosa is a success...

As automated image analysis progresses, there is increasing interest in richer linguistic annotation of pictures, with attributes of objects (e.g., furry, brown. . . ) attracting most attention. By building on the recent “zeroshot learning” approach, and paying attention to the linguistic nature of attributes as noun modifiers, and specifically adjectives, we show that it is possible to tag ima...

n Orientatio l S a subband at the l th decomposition level and at one of three orientations D-R distortion-rate T 0 initial threshold c(i,j) the wavelet coefficient at location (i,j) x a function which chooses the largest integer less than x l D the domain tree whose coarsest coefficients are in the decomposition level l 1 − l R the range tree whose coarsest coefficients are in the decomposit...

Abstract. The recent process of digitalizing archives has increased the importance of choosing the best compression method and evaluating the quality of the compressed materials. Our paper focuses on monochrome portrait photographs. We suggest using an image quality index partly based on Human Visual System. We think that, despite its simplicity, it equals with Mean Subjective Rank. In addition...

The role of moments in image normalization and invariant pattern recognition is addressed. The classical idea of the principal axes is analyzed and extended to a more general definition. The relationship between moment-based normalization, moment invariants, and circular harmonics is established. Invariance properties of moments, as opposed to their recognition properties, are identified using ...

1 Range sensors are devices that capture the 3D structure of the world from the viewpoint of the sensor, usually measuring the depth to the nearest surfaces. These measurements could be at a single point, across a scanning plane, or a full image with depth measurements at every point. The benefits of this range data is that a robot can be relatively certain where the real world is, relative to ...