...processing

Special thanks to HP Labs, Kodak, ViA, and Kopin

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...return 

Strictly speaking the actual quantity measured in early systems was that of a single homodyne channel, which only approximated energy. Later in some systems energy was measured properly with separate I and Q channels.

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...user-interface

An apparatus that embodies a user-interface of sufficient capability is said to meet the `Existential Criterion'mannpt

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...proximity

An apparatus that embodies a user-interface of sufficient and integral physical proximity is said to meet the `Eudaemonic Criterion'mannpt

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...constant

An apparatus having both operational constancy and interactional constancy is said to meet the `Ephemeral Criterion'mannpt

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...processing

The term `WearComp' denotes a class of wearable, tetherless, computational apparatus with visual display meansmannieeecomputer that meets the three criteria above.

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...project

For a detailed historical account of the WearComp project, and other related projects, seemannhistorical[15].

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...processing

The first wearable computers equipped with multichannel biosensors were built by the author during the 1980s inspired by a collaboration with Dr. Ghista of McMaster University. More recently, in 1995, the author put together an improved apparatus based on a Compaq Contura Aero 486/33 with a ProComp 8 channel analog to digital converter, worn in a Mountainsmith waist bag, and sensors from Thought Technologies Limited. The author subsequently assisted Healey in duplicating this system for use in trying to understand human emotionspicard97a.

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...dramatically

Perhaps it may stop, or ``skip a beat'' at first, but over time, on average, in the time following the event, experience tells us that our hearts beat faster when frightened.

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...light

This `lightspace' theory was first written up in detail in 1992mannlightspace.

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...scene

first modeling the motion as a projective coordinate transformation, and then estimating the residual epipolar structure or the residual epipolar structure or the like[33][34][35][36][37][38]

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...apparatus

The additional one-time download of a lens distortion map, into WearComp's coordinate transformation hardware, eliminates its lens distortion which would otherwise be very large, owing to the covert, and therefore small, size of the lens, and in engineering compromises necessary to its design. The Campbell method [42] is used to estimate the lens distortion for this one-time coordinate transformation map.

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...parameters

published in detail inmanntip338

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...operation

also known as a group action or G-set [49].

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...head)

The resulting collection of images may be characterized by fewer parameters, through application of the Hartley constrainthartley[27] to an estimate of a projective coordinate transformations.

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...like

For simplicity, all these methods of automatic exposure control are referred to as AGC in this paper, whether or not they are actually implemented using an Automatic Gain Control (AGC) circuit or otherwise.

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...``group

To be strictly mathematically correct, the projective group is written (ax+b)/(cx+d), but 47#47 in practical engineering problems (physically ``reasonable'' camera motion), so we may divide by d.

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...model

This approximate model is used in the feedforward loop, while the exact non-parametric model is used in the feedback loop, as described in detail inmanntip338[15].

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...camera

In some embodiments of WearComp, only a portion of the visual field is mediated in this way. Such an experience is referred to as `partially mediated reality'mann260.

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...synesthesia

Synesthesia [66] is manifest as the crossing of sensory modalities, as, for example, the ability (or as some might call a disability) to taste shapes, see sound, etc..

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...transform

The chirplet transform [67] characterizes the acceleration signature of Doppler returns, so that objects can be prioritized, e.g. those accelerating faster toward the wearer can be given higher priority, predicting eminent collision, etc..

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