A review on visual privacy preservation techniques for active and assisted living

This paper reviews the state of the art in visual privacy protection techniques, with particular attention paid to techniques applicable to the field of Active and Assisted Living (AAL). A novel taxonomy with which state-of-the-art visual privacy protection methods can be classified is introduced. Perceptual obfuscation methods, a category in this taxonomy, is highlighted. These are a category of visual privacy preservation techniques, particularly relevant when considering scenarios that come under video-based AAL monitoring. Obfuscation against machine learning models is also explored. A high-level classification scheme of privacy by design, as defined by experts in privacy and data protection law, is connected to the proposed taxonomy of visual privacy preservation techniques. Finally, we note open questions that exist in the field and introduce the reader to some exciting avenues for future research in the area of visual privacy.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work is part of the visuAAL project on Privacy-Aware and Acceptable Video-Based Technologies and Services for Active and Assisted Living (https://www.visuaal-itn.eu/). This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 861091. The authors would also like to acknowledge the contribution of COST Action CA19121 - GoodBrother, Network on Privacy-Aware Audio- and Video-Based Applications for Active and Assisted Living (https://goodbrother.eu/), supported by COST (European Cooperation in Science and Technology) (https://www.cost.eu/)

Approximate Nearest Neighbor Fields in Video

We introduce RIANN (Ring Intersection Approximate Nearest Neighbor search), an algorithm for matching patches of a video to a set of reference patches in real-time. For each query, RIANN finds potential matches by intersecting rings around key points in appearance space. Its search complexity is reversely correlated to the amount of temporal change, making it a good fit for videos, where typically most patches change slowly with time. Experiments show that RIANN is up to two orders of magnitude faster than previous ANN methods, and is the only solution that operates in real-time. We further demonstrate how RIANN can be used for real-time video processing and provide examples for a range of real-time video applications, including colorization, denoising, and several artistic effects.Comment: A CVPR 2015 oral pape

A Computer-Assisted Colorization Algorithm based on Topological Difference

National audienceRegion-based approaches to cel painting typically use shape similarity and topology relations between regions of consecutive animation frames. This paper presents a new colorization algorithm based on topological differences defined over a hierarchical graph of adjacent regions, which allows an almost full automatic colorization process. Also this paper discusses other attributes that improve the solution of the image association problem

Impulse

Features:[Page 2] Teaching and research 2[Page 4] IAP 4[Page 5] Learning _cooperatively 5[Page 6] Engineering course offers helping hand 6[Page 7] Students call on local telephone company 7[Page 8] The Gray Team 8Students:[Page 10] Mathi draws on experience 10[Page 11] Eidem enjoys stellar summer 11[Page 12] Students receive undergraduate research assistantshjps 12[Page 13] Clarifying remote sensing images 13[Page 14] MET program studied 14[Page 15] Broulik receives Space Grant Consortium assistantship 15College:[Page 16] Lecn1re series advances mission of CEET 16[Page 18] Engineering holds first job fair 18[Page 19] Unique fiber optics lab developing 19[Page 20] ERC reaches thousands 20Faculty:[Page 21] Brown named to IEEE post 21[Page 21] Snow video proves a hit 21[Page 22] Shin visits Korea 22[Page 23] Burckhard conducts research at EROS 23[Page 24] P aul Koepsell retires 24[Page 25] Helder directs Engineering Research 25Alumni:[Page 28] Texan awarded degree sixty-three years later 28[Page 29] Summer job led Belsaas from engineering to medicine 29[Page 30] Gifts put Crothers project on track for success 30[Page 31] Alumni News 31Contributors:[Page 32] Dean\u27s Club 32https://openprairie.sdstate.edu/coe_impulse/1023/thumbnail.jp

Community heritage interpretation games: A case study from Angaston, South Australia

The residents of Angaston in South Australia, have worked on interpreting their town’s history since the early 1990s. Heritage walks brochures and interpretive plaques attracted, and continue to attract, steady interest from adults interested in history. An attempt to broaden the audience base to include children and ‘younger people’ in general, led to the development of an interpretive game designed as a choose-your-own adventure and intended for conversion to CD as a computer game. Although the town had an interpretation plan and keen local historians, the project ultimately shed its historical base and became a cartoon-like ‘choose your own adventure’ game which did not attract its intended market. This case study demonstrates the difficulty of achieving heritage interpretation with integrity when working within the complex dynamics of a small community. Some strategies to assist community-based interpretation projects are suggested

Animating perception: British cartoons from music hall to cinema, 1880 - 1928

This thesis examines the history of animated cartoons in Britain between 1880 and 1928, identifying a body of work that has been largely ignored by film and animation historians, covering the production, distribution, and exhibition of these films. Throughout this history, graphic arts - especially print cartooning and illustration - and the music-hall lightning cartoon act are found to have played a formative role in British animated cartoons. The artists who made the first British animated cartoons were almost exclusively drawn from one of those two fields and thus this work may be considered to form a parallel history of ‘artists’ film’. They brought with them to film a range of concerns from those prior forms that would shape British animated cartoons. Examining that context provides an understanding of the ways British animated cartoons developed in technologic, economic, and aesthetic terms. This work includes the first in-depth history of the music-hall lightning cartoon act, which finds that it anticipates cinematic animation, featuring qualities such as transformation, the movement of line drawings, and the desire to bring drawings to life. Building on this history, a new critical framework for examining these films aesthetically is provided, emphasising the role of the spectator and their perceptual processes. This framework draws upon the work of E.H. Gombrich and Sergei Eisenstein, and extends it to include recent findings from neuroscientific fields. The result is an original aesthetic reading of this body of work, which finds the films to have a deep engagement with the basic perceptual processes involved in viewing moving line drawings

Computer-assisted animation creation techniques for hair animation and shade, highlight, and shadow

制度:新 ; 報告番号:甲3062号 ; 学位の種類:博士(工学) ; 授与年月日:2010/2/25 ; 早大学位記番号:新532

Caricature generator

Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1982.MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH.Bibliography: leaves 111-116.The human face is a highly significant visual display which we are able to remember and recognize easily despite the fact that we are exposed to thousands of faces which may be metrically very similar. caricature is a graphical coding of facial features which seeks to be more like the face than the face itself: selected information is exaggerated, noise is reduced, and the processes involved in recognition are exploited. After studying the methods of caricaturists, examining perceptual phenomena regarding individuating features, and surveying automatic and man-machine systems which represent and manipulate the face, some heuristics for caricature are defined . An algorithm is implemented to amplify the nuance of a human face in a computer- generated caricature. This is done by comparing the face to a norm and then distorting the face even further away from that norm . Issues of style, context and animation are discussed. The applications of the caricature generator in the areas of teleconferencing, games, and interactive graphic interfaces are explored.by Susan Elise Brennan.M.S.V.S

An Investigation of Language Acquisition as an Antecedent to Pro-Social Development for Secondary Students at Risk for Behavior Disorders

Moral development in youth is of importance to both researchers and to educational professionals seeking to shape the pro-social moral development of young people. This study investigated a new theory of moral development based on literature from neuroscience, linguistics, and cognitive psychology. The purpose of this study was to research functional language acquisition’s potential as an antecedent to the development of pro-social moral development among a purposeful sample of alternative school students. This study answered four questions: What gaps, if any, exist between typical language development and the language development of the participants of the study as measured by a functional language sampling assessment? Given a picture of a social event with shared activities, will the participants make pro-social or antisocial connections among the agents? When cartooning to visually represent a participant’s understanding of possible moral transgressions, does the participant’s drawing and writing show a social, cognitive, and/or a language gap between what the participant draws and writes and what the participant tells about the concepts? Will participants show a difference in language function when the task requires higher and/or lower levels of cognition? To answer these questions, language samples were gathered from study participants using a verbal prompt, shared referent (pictures), and cartooning. Participants were ten alternative school students. Four students with significant behavior problems comprised the Core Group. Five of their higher achieving peers comprised the Comparison Group. An additional student with significant behavior and academic issues provided a Confirmation Case. All of the students in the study were found to have pre-language levels of language function across all tasks. Further, none of the students made consistently pro-social connections in their stories for agents depicted in APRICOT I and APRICOT II pictures. Students’ cartooned stories showed gaps between their cartooning and what they said orally. This study suggests alternative school students may have significant functional language deficits and that the behavioral programs at such schools fail to provide students the pro-social moral concepts needed for pro-social moral development. Additionally, they may benefit from the introduction of opportunities for functional language acquisition rarely offered by current curricula

Privacy aware human action recognition: an exploration of temporal salience modelling and neuromorphic vision sensing

Solving the issue of privacy in the application of vision-based home monitoring has emerged as a significant demand. The state-of-the-art studies contain advanced privacy protection by filtering/covering the most sensitive content, which is the identity in this scenario. However, going beyond privacy remains a challenge for the machine to explore the obfuscated data, i.e., utility. Thanks for the usefulness of exploring the human visual system to solve the problem of visual data. Nowadays, a high level of visual abstraction can be obtained from the visual scene by constructing saliency maps that highlight the most useful content in the scene and attenuate others. One way of maintaining privacy with keeping useful information about the action is by discovering the most significant region and removing the redundancy. Another solution to address the privacy is motivated by the new visual sensor technology, i.e., neuromorphic vision sensor. In this thesis, we first introduce a novel method for vision-based privacy preservation. Particularly, we propose a new temporal salience-based anonymisation method to preserve privacy with maintaining the usefulness of the anonymity domain-based data. This anonymisation method has achieved a high level of privacy compared to the current work. The second contribution involves the development of a new descriptor for human action recognition (HAR) based on exploring the anonymity domain of the temporal salience method. The proposed descriptor tests the utility of the anonymised data without referring to RGB intensities of the original data. The extracted features using our proposed descriptor have shown an improvement with accuracies of the human actions, outperforming the existing methods. The proposed method has shown improvements by 3.04%, 3.14%, 0.83%, 3.67%, and 16.71% for DHA, KTH, UIUC1, UCF sports, and HMDB51 datasets, respectively, compared to state-of-the-art methods. The third contribution focuses on proposing a new method to deal with the new neuromorphic vision domain, which has come up to the application, since the issue of privacy has been already solved by the sensor itself. The output of this new domain is exploited by further exploring the local and global details of the log intensity changes. The empirical evaluation shows that exploring the neuromorphic domain provides useful details that have demonstrated increasing accuracy rates for E-KTH, E-UCF11 and E-HMDB5 by 0.54%, 19.42% and 25.61%, respectively