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The knowing camera

Pai Peng, Lidan Shou, Ke Chen, Gang Chen, Sai Wu
2013 Proceedings of the 36th international ACM SIGIR conference on Research and development in information retrieval - SIGIR '13  
This paper presents a framework called Knowing Camera for real-time recognizing places-of-interest in smartphone photos, with the availability of online geotagged images of such places.  ...  We propose a probabilistic field-of-view model which captures the uncertainty in camera sensor data. This model can be used to retrieve a set of candidate images.  ...  Acknowledgments The work is supported by the National Science Foundation of China (GrantNo. 61170034).  ... 
doi:10.1145/2484028.2484173 dblp:conf/sigir/PengS00W13 fatcat:vcvdlfmlo5bvnipfhwynnzqoxu

The knowing camera 2

Pai Peng, Lidan Shou, Ke Chen, Gang Chen, Sai Wu
2014 Proceedings of the 37th international ACM SIGIR conference on Research & development in information retrieval - SIGIR '14  
This paper presents a project called Knowing Camera for real-time recognizing and annotating places-of-interest(POI) in smartphone photos, with the availability of online geotagged images of such places  ...  We propose a "Spatial+Visual" (S+V) framework which consists of a probabilistic field-of-view model in the spatial phase and sparse coding similarity metric in the visual phase to recognize phone-captured  ...  Acknowledgments The work is supported by the National Science Foundation of China (GrantNo. 61170034) and National High Technology Research and Development Program of China (GrantNo. 2013AA040601).  ... 
doi:10.1145/2600428.2609557 dblp:conf/sigir/PengS00W14 fatcat:5hw3jotg3bh7zirtzoi25qup5m

Low-cost asset tracking using location-aware camera phones

David Chen, Sam Tsai, Kyu-Han Kim, Cheng-Hsin Hsu, Jatinder Pal Singh, Bernd Girod, Andrew G. Tescher
2010 Applications of Digital Image Processing XXXIII  
The client enables a user to snap a picture of a bookshelf and to subsequently view the recognized spines in the smartphone's viewfinder.  ...  The BoVF representation also allows matching each photo of a bookshelf rack against a photo of the entire bookshelf, and the resulting feature matches are used in conjunction with the smartphone's orientation  ...  In asset tracking, the location of each recognized asset is equally as important to know as the identity of the asset.  ... 
doi:10.1117/12.862426 fatcat:l5xxfvuo3nc5pazmbn4xcryyle

Smartphone camera based pointer [article]

Predrag Lazic
2020 arXiv   pre-print
In this paper, we present a novel idea that turns a smartphone into a direct virtual pointer on the screen using the phone's camera.  ...  However, there are not many ways in which smartphones and screens can interact besides casting the video from a smartphone.  ...  , y min x max , y max After establishing the coordinates of the diagonal corners of the server screen in camera relative coordinates, and knowing that the aiming point in camera relative coordinates is  ... 
arXiv:2004.08030v1 fatcat:xh2vc7dmareptpz6dbec4j4bsq

Privacy behaviors of lifeloggers using wearable cameras

Roberto Hoyle, Robert Templeman, Steven Armes, Denise Anthony, David Crandall, Apu Kapadia
2014 Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing - UbiComp '14 Adjunct  
of factors including time, location, and the objects and people appearing in the photo determines its 'sensitivity;' and 3) people are concerned about the privacy of bystanders, despite reporting almost  ...  To explore how people manage privacy in the context of lifelogging cameras, as well as which kinds of first-person images people consider 'sensitive,' we conducted an in situ user study (N = 36) in which  ...  Smartphone app Our custom Android application took periodic photos from the rear-facing camera of a Samsung Galaxy Y smartphone.  ... 
doi:10.1145/2632048.2632079 dblp:conf/huc/HoyleTAACK14 fatcat:nujmtmpwgreutky4drjjvzmdnq

My Naturewatch Camera

William Gaver, Andy Boucher, Michail Vanis, Andy Sheen, Dean Brown, Liliana Ovalle, Naho Matsuda, Amina Abbas-Nazari, Robert Phillips
2019 Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems - CHI '19  
We aligned its development to the interests of the BBC's Natural History Unit as part of an orchestrated engagement strategy also involving our project website and outreach to social media.  ...  In this paper, we describe the project and outcomes with a focus on its success in promoting engagement with nature, engagement with digital making, and the effectiveness of this strategy for sharing research  ...  advice, to Anne Schlottmann for comments and to all the people who made My Naturewatch Cameras.  ... 
doi:10.1145/3290605.3300532 dblp:conf/chi/GaverBVSBOMAP19 fatcat:fkhn5vr4ingcdf3ocj7jpdgnzy

Personalized Image-based User Authentication using Wearable Cameras [article]

Le Ngu Nguyen, Stephan Sigg
2017 arXiv   pre-print
We verified the authentication challenges in the presence of a random and an informed attacker who is familiar with the environment and observed that the time required and the number of attempts are significantly  ...  We integrate eye tracking data to select informative sequences of video frames and suggest a blurriness-based method if an eye-facing camera is not available.  ...  Our system randomized both the total number of images n and the quantity of valid photos k and did not let the user know those parameters.  ... 
arXiv:1612.06209v2 fatcat:4zcotuxt5zdadn4xupglfu57ny

The Entangled Apparatus: Cameras as Non-Distancing Devices [chapter]

Birk Weiberg
2021 Zenodo  
in smartphones.  ...  Contemporary smartphone cameras, for example, use algorithms to identify the silhouettes of persons in the foreground.  ... 
doi:10.5281/zenodo.4709878 fatcat:p4vqtxd2nbd3tjmfyhapxbiv7y

ScreenAvoider: Protecting Computer Screens from Ubiquitous Cameras [article]

Mohammed Korayem, Robert Templeman, Dennis Chen, David Crandall, Apu Kapadia
2014 arXiv   pre-print
While capturing several meaningful and interesting moments, a significant number of images captured by these wearable cameras can contain computer screens.  ...  We live and work in environments that are inundated with cameras embedded in devices such as phones, tablets, laptops, and monitors.  ...  Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the sponsors.  ... 
arXiv:1412.0008v1 fatcat:57grtmginfgadfw6smzgn3by7u

Let Your Camera See for You: A Novel Two-Factor Authentication Method against Real-Time Phishing Attacks [article]

Yuanyi Sun, Sencun Zhu, Yao Zhao, Pengfei Sun
2021 arXiv   pre-print
The main idea is to request a user to take a photo of the web browser with the domain name in the address bar as the 2nd authentication factor.  ...  Recently, real-time phishing (RTP) has made the situation even worse because an adversary can effortlessly establish a phishing website replicating a target website without any background of the web page  ...  Then the user takes a photo of the address bar in his PC browser by pressing the "capture" button in the camera app. The captured photo (in jpeg format) is displayed in the middle region of the GUI.  ... 
arXiv:2109.00132v1 fatcat:5ibde7kegbg75e7obwtvdvl3qu

OralCam: Enabling Self-Examination and Awareness of Oral Health Using a Smartphone Camera [article]

Yuan Liang, Hsuan-Wei Fan, Zhujun Fang, Leiying Miao, Wen Li, Xuan Zhang, Weibin Sun, Kun Wang, Lei He, Xiang Anthony Chen
2020 arXiv   pre-print
This paper presents OralCam, the first interactive app that enables end-users' self-examination of five common oral conditions (diseases or early disease signals) by taking smartphone photos of one's oral  ...  With the advent of low-cost, sensor-equipped smartphones, mobile apps offer a promising possibility for promoting oral health.  ...  Smartphone Camera as Oral Sensor Smartphone cameras have enabled users to conveniently capture oral photos by themselves as input to OralCam.  ... 
arXiv:2001.05621v2 fatcat:uuaiujao4na3ddlhltui3lem7q

Technological approaches for addressing privacy concerns when recognizing eating behaviors with wearable cameras

Edison Thomaz, Aman Parnami, Jonathan Bidwell, Irfan Essa, Gregory D. Abowd
2013 Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing - UbiComp '13  
Using data gathered by 5 participants wearing a lanyardmounted smartphone, we show how the framework can be used to quantitatively assess the effectiveness of four automated techniques (face detection,  ...  First-person point-of-view (FPPOV) images taken by wearable cameras can be used to better understand people's eating habits.  ...  ACKNOWLEDGEMENTS We would like to thank the Intel Science and Technology Center for Pervasive Computing (ISTC-PC) for supporting this work.  ... 
doi:10.1145/2493432.2493509 dblp:conf/huc/ThomazPBEA13 fatcat:mbmz6xor4jde5f4f35piqbzaga

[Paper] Imperceptible Color Vibration for Screen-Camera Communication via 2D Binary Pattern

Satoshi Abe, Takefumi Hiraki, Shogo Fukushima, Takeshi Naemura
2020 ITE Transactions on Media Technology and Applications  
Communication between screens and cameras has attracted attention as a ubiquitous information source, motivated by the widespread use of smartphones and the increase of public information screens.  ...  In addition, scenarios of potential practical applications and a user study examining imperceptibility of barcodes and usability of the system are presented to illustrate the technological capabilities  ...  Passers-by see only the untainted images, and those interested in the product can access the website immediately by pointing their smartphone cameras at the displayed advertisement.  ... 
doi:10.3169/mta.8.170 fatcat:op7spzkbrzguvacragks4uzifm

Mechanics of Camera Work in Mobile Video Collaboration

Brennan Jones, Anna Witcraft, Scott Bateman, Carman Neustaedter, Anthony Tang
2015 Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems - CHI '15  
While we have a good understanding of the challenges of video conferencing in office or home environments, we do not fully understand the mechanics of camera work-how people use mobile devices to communicate  ...  Our analysis suggests that people use the camera view deliberately to support their interactionsfor example, to convey a message or to ask questions-but the limited field of view, and the lack of camera  ...  ACKNOWLEDGEMENTS We thank all of our study participants, as well as Ray Sharma of XMG Studio, NSERC, SurfNet, GRAND NCE, Nokia, and AITF for their generous support of this work.  ... 
doi:10.1145/2702123.2702345 dblp:conf/chi/JonesWBNT15 fatcat:val6bmi2zbdmpiydkad6bb4mra

Cops, cameras, and the policing of ethics

Meg Stalcup, Charles Hahn
2016 Theoretical criminology  
In this article, we explore how cameras are used in policing in the United States.  ...  We analyze these cases in relation to the major arguments for and against initiatives to increase police use of cameras, outlining what we see as techno-optimistic and techno-pessimistic positions.  ...  For thinking through many of the ideas in this article, the authors thank Gaymon Bennett at Arizona State University and the Center for Biological Futures, and Michelle Stewart at the University of Regina  ... 
doi:10.1177/1362480616659814 fatcat:4qd7gmo4qrfpraaxblslkbqskq
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