Tongue ’n’ Groove
نویسندگان
چکیده
Here we propose a novel musical controller which acquires imaging data of the tongue with a two-dimensional medical ultrasound scanner. A computer vision algorithm extracts from the image a discrete tongue shape to control, in realtime, a musical synthesizer and musical effects. We evaluate the mapping space between tongue shape and controller parameters and its expressive characteristics.
منابع مشابه
'Tongue-and-groove' effect in intensity modulated radiotherapy with static multileaf collimator fields.
The 'tongue-and-groove problem' in step-and-shoot delivery of intensity modulated radiotherapy is investigated. A 'tongue-and-groove' index (TGI) is introduced to quantify the 'tongue-and-groove' effect in step-and-shoot delivery. Four different types of leaf sequencing methods are compared. The sliding window method and the reducing level method use the same number of field segments to deliver...
متن کاملAccounting for the tongue-and-groove effect using a robust direct aperture optimization approach.
PURPOSE Traditionally, the tongue-and-groove effect due to the multileaf collimator architecture in intensity-modulated radiation therapy (IMRT) has typically been deferred to the leaf sequencing stage. The authors propose a new direct aperture optimization method for IMRT treatment planning that explicitly incorporates dose calculation inaccuracies due to the tongue-and-groove effect into the ...
متن کاملA comparison of step-and-shoot leaf sequencing algorithms that eliminate tongue-and-groove effects.
The performances of three recently published leaf sequencing algorithms for step-and-shoot intensity-modulated radiation therapy delivery that eliminates tongue-and-groove underdosage are evaluated. Proofs are given to show that the algorithm of Que et al (2004 Phys. Med. Biol. 49 399-405) generates leaf sequences free of tongue-and-groove underdosage and interdigitation. However, the total bea...
متن کاملOptimal leaf sequencing with elimination of tongue-and-groove underdosage.
The individual leaves of a multileaf collimator (MLC) have a tongue-and-groove or stepped-edge design to minimize leakage radiation between adjacent leaves. This design element has a drawback in that it creates areas of underdosages in intensity-modulated photon beams unless a leaf trajectory is specifically designed such that for any two adjacent leaf pairs, the direct exposure under the tongu...
متن کاملTongue 'n' Groove: An Ultrasound based Music Controller
Here we propose a novel musical controller which acquires imaging data of the tongue with a two-dimensional medical ultrasound scanner. A computer vision algorithm extracts from the image a discrete tongue shape to control, in realtime, a musical synthesizer and musical effects. We evaluate the mapping space between tongue shape and controller parameters and its expressive characteristics.
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