Physical and technological approaches to systemic film moistening

This article discusses the physical and technological approaches to systemic film moistening. The features of storage and operation of film in various conditions are considered. A number of features and facts are presented that affect the organization of both systemic humidification and the maintenance of long-term storage of film materials on analog media. The article presents the main factors that affect the quality of the working surface of 35 mm and 16 mm film: the specifics of the composition of the film; the effects of a temporary, natural and technological nature on motion pictures; sophisticated technology for servicing analog film projectors, rewinding devices and film checking facilities. The analysis of the sequence of manipulations of technological equipment and chemical compositions for stable operation without gusts, drying and burnout of film materials is carried out. The article gives the physicochemical content of work on the stages of film moistening, taking into account the specifics of the applied filmostatic liquids. In the step-by-step process of moistening, after the end of each stage, the main results obtained are assessed by visual comparison of the image projections, followed by the digitization of the image and the correction of the result obtained in graphic editors. To eliminate artifacts, scratches and other elements of entropy, the authors recommend using neural network approaches for working with film materials.

Physicotechnical approach to systemic film moistening

This article discusses the features of storage, humidification and operation of film in Central Siberian conditions. A number of features and a certain factology are revealed that affect the organization of systemic moistening (humidification) and maintenance of film materials on analog media for long-term storage and operation of film. The main factors included in the description of this article, which affect the dynamics of maintaining the working surface of 35 mm and 16 mm film: the specifics of the composition of the film; the impact of a temporary, natural and technological nature on the "light pictures"; sophisticated technology for servicing analog film projectors, rewinding devices and film checking facilities; the specifics of the sequence of manipulations of equipment and chemical compositions for stable operation without gusts, drying and burnout of film materials. The article shows the content of work on the stages of film moistening, taking into account the specifics of their application. This specificity manifests itself most significantly when working with especially fragile film materials that are of cultural value and have an actual shelf life of at least 60 years. In the step-by-step process of moistening, after the end of each stage, the main results obtained are assessed by visual comparison of the image projections, followed by the digitization of the image and the correction of the result obtained in graphic editors. If the "light picture" is of interest and needs additional adjustments to eliminate artifacts, scratches and other elements of entropy, then neural network approaches are used to work with film material. The article presents an analysis that allows you to determine the permissible option for the implementation of film moistening in the given conditions of film testing for subsequent projection on film equipment.

Objects of Embodiment: A “Post-Material Turn” in Exhibiting Lost Material Culture

Exhibiting lost material culture goes beyond documenting, preserving, reconstructing, and staging material traces of the past. Museums, possessing modest collections of original historical objects, have to search for new ways of exhibiting material culture thereby replacing facts (original objects, documents, documentary media) by bodily experience similar to that evoked by mystical religious art addressing different human senses beyond the vision. Bodily sensations can be evoked by ambiences, following expressionist or constructivist architecture, by sculptural displays in tradition of the avant-garde, by soundscapes and large scale image projections evoking illusion and immersion. The “post-material turn” comprises thus not only virtual culture, but also new material approaches to the memory of the past, shifting from original historical artifacts to reproductions and substitutes, evoking an intense bodily experience. Although history gets space for embodiment, such ambiences evoke a strong sense of loss, because they avoid immediate contact with traces of the past by virtual and material “doubles”. The “post-material turn” will be discussed with the example of The Jewish Museum and Tolerance Center in Moscow, relating it to other contemporary “postdocumentary” and “post-factual” phenomena in memorial culture.

Recognition of Gender using Gait Energy Image Projections Based on Random Forest Classifier

Identification of gender is a very fascinating criterion in the present day scenario. Especially, in the surveillance applications, gender recognition is very beneficial. With the use of face, speech, voice and gait, the gender of a person can be determined. Non-contact, non-invasive and easily acquired at distance, gait analysis has attracted the interest of many researchers in the classification of gender. For the identification of gender, 2 stages of the methodology are used in our proposed work. A new descriptor called Gait energy image projection model(GPM) is proposed which highlights all the gender-related parameters. In the second stage of methodology, proposed descriptor GPM is fused with already existing descriptors like GEI and FED for enhanced performance. For classifying the gender, an Ensemble classifier called Random Forests is applied to the individual and fused descriptors and the results are evaluated. Two datasets are used for experimentation namely CASIA B and OU-ISIR datasets which are standard datasets for person identification and different performance metrics such as accuracy, precision, recall and error rate are evaluated.

Hidden Data Embedding Method Based on the Image Projections Onto the Eigenvectors of Subinterval Matrices

We consider the new method of hidden data embedding based on the transform of the container-image using the apparatus of subinterval matrices of the cosine transform. The developed method deals with the analysis of the container-image projections onto the eigenvectors of subinterval matrices. A decisive rule for the choice of informative and non-informative image projections subsets based on a given significance level is proposed. The computational experiments results of projections partitioning into informative and non-informative subsets show that it is possible to obtain a different numbers of informative and non-informative projections subsets using different significance levels. It allows to implement a hidden embedding of different data amounts. The embedding data are represented by a binary sequence. In our method we proposed to implement the data embedding on the basis of a relative change of given projections values. To test the workability of the developed method computational experiments were carried out. Their results showed that the developed method allows to perform data recovery without distortion, and causes a slight distortions of the image containing the embedded data. Also we carried out comparative computational experiments to compare the results of the developed method application with the results of Е. Koch and J. Zhao method and spread spectrum method. Their results showed that the developed method causes less distortions of the container-image than other ones.