Using Remote Vision: The Effects of Video Image Frame Rate on Visual Object Recognition Performance

Garaj, Vanja; Hunaiti, Ziad; Balachandran, W.

doi:10.1109/tsmca.2009.2036938

Cited by 15 publications

(8 citation statements)

References 12 publications

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“…This is in agreement with earlier documented work on a similar systems reported in [11][12][13]. In our emphatic tests, the prototype system has proven effective in both micro-navigation (e.g.…”

Section: Discussionsupporting

confidence: 92%

“…It is estimated that motion compensation could improve the frame rate by a factor of 4, which would result in a 7 fps average frame rate. Interestingly, a small frame rate does not significantly influence obstacle detection performance by a remote guide, as shown in study [12], however, it results in a tiring effect. This phenomenon was also noticed during our study.…”

Section: A the Emphatic Field Trialsmentioning

confidence: 71%

“…The UHF link for transmitting video limits the system's usability to a range of several dozens of meters. Selected functional properties of the proposed system were tested by the authors of the system [12]. No commercial deployment of this system has been reported.…”

Section: A Telassistance Systems Aiding the Blindmentioning

confidence: 99%

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Field trials of a teleassistance system for the visually impaired

Barański

Strumiłło

2015

2015 8th International Conference on Human System Interaction (HSI)

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The paper reports the proof-of-concept tests, i.e. ergonomic, non-mobility tests with participation of blind volunteers and emphatic field trials (i.e. with the participation of sighted individuals) of a teleassistance system for the visually impaired. The system consists of two terminals connected by the GSM and Internet networks. The mobile terminal, housing a digital camera, GPS receiver and headset, is worn by a guided traveller and a stationary terminal is operated by a remote guide. A video stream from the traveller's camera is transmitted to the remote guide who provides assistance by short spoken navigation instructions. The trials were conducted on a university campus with the participation of seven sighted individuals. They walked along three different paths, each approximately 400 m in length, under the teleassisted supervision of the remote guide. During these trials, the sighted individuals who were being remotely guided, noted the number of potential lost ways or possible collisions. Comments from the target users, i.e. the visually impaired who assessed the ergonomic and communication quality in the static, non-mobility trials of the system, were collected. On the basis of the conducted tests and the field trials, we conclude that teleassisted navigation is a prospective solution for aiding the visually impaired in space orientation and mobility.

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Section: Discussionsupporting

confidence: 92%

Section: A the Emphatic Field Trialsmentioning

confidence: 71%

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Field trials of a teleassistance system for the visually impaired

Barański

Strumiłło

2015

2015 8th International Conference on Human System Interaction (HSI)

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“…An innovative class of ONSs is based on guiding the VIP by a remote human guide termed as Tele-assistance/Tele-guidance systems. [3]. The first reported system for remote guidance of the blind was the system developed at the Brunel University, UK [4].…”

Section: Orientation and Navigation Systems (Onss)mentioning

confidence: 99%

Tele-guidance Based Navigation System for the Visually Impaired and Blind Persons

Chaudary

Paajala

Keino

et al. 2016

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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The design and development of tele-assistance services have taken a great consideration in the domain of healthcare lately. With the growing proportion of dependent people (ageing, disabled users) in the society, teleassistance and tele-monitoring platforms will play a significant role to provide an efficient and economical remote care. It will allow aged or disabled persons to maintain their independence and lessen the burden and cost of care by caregivers. The concept of proposed tele-guidance system is based on the idea that a blind pedestrian can be assisted by spoken instructions from a remote caregiver who receives a live video stream from a camera carried by the visually impaired persons (VIP). The ICT based assistive tools have acceptance issues by visually impaired persons. It is important while designing navigation tools for the VIP to keep in view the factors that restrain them from the adoption of assistive technology. This paper presents a tele-guidance based navigation assistance system for the VIP and blind persons and reports a qualitative study about attitude of VIP towards technological navigation assistance.

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“…High-resolution imaging systems with advanced algorithms are now widely available in personal digital assistant (PDA) at relatively low-cost. Blind/VIP can share images/videos captured by a wearable camera through internet permitting a remotely guided navigation (Garaj et al 2010;Hunaiti et al 2009). More recently, rapid developing social networks (such as Twitter, Facebook and RSS) further enhance the global perception of the surrounding environments (Xiao et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Temperature-based alternate perception method for human-motion detection with visually impaired user applications

Jiang

Lee

2017

Int J Intell Robot Appl

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This paper presents an alternate perception method to improve the perception ability of the blind/visually impaired people who are generally familiar with stationary objects but less confident in congested environment where human motion is unpredictable. This method, taking advantages of the fact that the human body is essentially a natural heat source, utilizes temperature fields and their gradients from infrared (IR) images to locate individual humans in a relatively congested area and determine their face orientation and motion states. Unlike conventional illumination-sensitive visual images that often include many unrelated details, the normalized IR images in this method are naturally pre-filtered, effectively removing unwanted background ''noise'', which greatly simplifies the subsequent image processing tasks. The temperature-based method has been illustrated with three realistic scenes commonly encountered in daily walking. Practical implementation issues, which include the effects of low image resolution, overlapping/occlusions, reflection and non-human heat sources on the face orientation detection, are discussed; and their effects on the effectiveness and robustness of the method are experimentally investigated. The experimental findings offer physically intuitive insights into the development of alternate perception methods based on temperature field and its potential applications in intelligent space, smart city and smart cars.

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Using Remote Vision: The Effects of Video Image Frame Rate on Visual Object Recognition Performance

Cited by 15 publications

References 12 publications

Field trials of a teleassistance system for the visually impaired

Field trials of a teleassistance system for the visually impaired

Tele-guidance Based Navigation System for the Visually Impaired and Blind Persons

Temperature-based alternate perception method for human-motion detection with visually impaired user applications

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