Space scale factor is an important concept in physics.

Temporal and spatial scales of aquatic ecosystem;

Variation of water productivity in different spatial scales;

Review of soil erosion model at different spatial scales;

Affine invariant feature detection based on scale space analysis and depth information

In scale space,the local extremum ofwavelet transform modulo of image not only describes the local characteristics of ir-regular structure of image but also displays distribution of local singular points.

Based on the analysis of scale space theory and current Mean Shift algorithm,a scale and diretion adaptive Mean Shift tracking algorithm is proposed.

Harris corner detection based on theory of scale-space;

Anisotropic Scale－space in Image Inhancement;

Object tracking using the trust-region method in scale-space with probability distribution images generated by kernel density estimation

The whole framework of coordination theory of electric power system optimal dispatch considering security and economics is established, and the coordinative dispatching mechanism and model at 7 aspects of space scale, time scale, power production link, controlled object, security and stable control strategy, optimized goal and open impartial equitable dispatch are presented.

For the available predictive model for soil erosion in different space scale of slope,watershed and region,which are unattached and irrelevant in either choice of factors or building of models and the communication could not be effectively carried out accordingly.

Taking Chenghai city building as example,problems existed in current small town space design were analyzed,some suggestions were provided how to build suitable small town space scale from four aspects such as build entity scale,street space scale,square space scale and green space scale,which has guiding meaning fir space design of small town.