Jose Rivera-Rubio

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In this paper, we address a specific use-case of wearable or hand-held camera technology: indoor navigation. We explore the possibility of crowdsourcing navigational data in the form of video sequences that are captured from wearable or hand-held cameras. Without using geometric inference techniques (such as SLAM), we test video data for navigational(More)
Vision is one of the most important of the senses, and humans use it extensively during navigation. We evaluated different types of image and video frame de-scriptors that could be used to determine distinctive visual landmarks for localizing a person based on what is seen by a camera that they carry. To do this, we created a database containing over 3 km(More)
The ubiquity of smartphones with high quality cameras and fast network connections will spawn many new applications. One of these is visual object recognition, an emerging smartphone feature which could play roles in high-street shopping, price comparisons and similar uses. There are also potential roles for such technology in assistive applications, such(More)
Computer vision remains an under-exploited technology for assistive devices. Here, we propose a navigation technique using low-resolution images from wearable or hand-held cameras to identify landmarks that are indicative of a user’s position along crowdsourced paths. We test the components of a system that is able to provide blindfolded users with(More)
Visual object recognition is just one of the many applications of camera-equipped smartphones. The ability to recognise objects through photos taken with wearable and handheld cameras is already possible through some of the larger internet search providers; yet, there is little rigorous analysis of the quality of search results, particularly where there is(More)
One of the key behaviours found in biological place cells (BPCs) is a rate-coding effect: a neuron’s rate of firing decreases with distance from some landmark location. We used visual information from wearable and hand-held cameras in order to reproduce this rate-coding effect in artificial place cells (APCs). The accuracy of localisation using these APCs(More)
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