Thomson Licensing

Thomson Licensing S.a.

Chinese Research Adademy of Environmental Sciences

Wei Liang Meng

Kangying Cai

Tao Luo

Jiang Tian

Yonghui Song

The invention provides a method for generating an n dimensional vector as a shape descriptor of a model, and corresponding apparatus and shape descriptor. The method comprises: determining a type element of the vector to describe the basic shape of the model; and calculating n&#x2212;1 metric elements of the vector, each of which represents the percentage of all of a feature of the model falling into one of n&#x2212;1 layers divided as a function of the type element.

Method and apparatus for generating shape descriptor of a model

Wastewater treatment methods and systems for removal of phosphorus (P) and nitrogen (N) from wastewater and for recovery of them as usable materials. Sufficient amount of dolomite lime and slaked dolomite lime is added into the wastewater to increase the pH of the wastewater to above 8.5 and to form P precipitates and to convert ammonium to ammonia in a precipitation-ammonia stripping reactor or a continuous flow precipitation reactor. The P precipitates are separated from the wastewater and recovered as usable solid material. The ammonia gas is absorbed and concentrated with acid solution in an ammonia absorption tower as usable liquid material.

Methods and systems for wastewater treatment and resource recovery

Many 3D mesh models have a large number of small connected components that are repeated in various positions, scales and orientations. The respective positions are defined by the position of at least one reference point per component. For an enhanced encoding of the positions of the respective reference points, a given space is divided into segments and the number of points lying in each particular segment is determined. When a cell with at least n points is subdivided into child cells, an indication is added indicating if all points of a parent are in only one child cell. If so, the index of the only non-empty child node is encoded, while otherwise the number of points in one of the two child cells is decremented and encoded. The invention avoids non-effective subdivisions of a cell, and therefore improves the compression efficiency.

Growing community of inventors

Beijing, China

Wei Liang Meng