Abstract: Simulated textures whose parameters are held with object model data in a data store are modified in accordance with data held in data store which data defines a Gamma correction factor previously determined for each identified user. The gamma correction factor is determined by outputting to a Haptic Output interface a texture simulation including spaced grooves or ridges. By correlating user response to the perceived “feel” of the texture (rough, medium or smooth scale for example) the user's perceptual factors can be determined. Subsequently applying the perceptual factors to effect a mathematical adjustment (power) of texture in simulation algorithms allows output simulations to be adapted so that each user has a corresponding perception of the simulated objects.

Abstract: A method of compensating for network latency in haptics transmission in which the position of a haptic effector is controlled by signals received from a network. The method comprises storing a series of locations of the haptic effector, determining from the series using Fourier Transformation or other means frequencies having a growing amplitude and creating a filter function to eliminate the growing frequencies from output signals directing the force and direction of the haptic effector.

Abstract: A method of compensating for network latency in haptics transmission in which the position of a haptic effector is controlled by signals received from a network. The method comprises storing a series of locations of the haptic effector, determining from the series using Fourier Transformation or other means frequencies having a growing amplitude and creating a filter function to eliminate the growing frequencies from output signals directing the force and direction of the haptic effector.

Abstract: Simulated textures whose parameters are held with object model data in a data store 5 are modified in accordance with data held in a data store 6 which data defines a Gamma correction factor 73 previously determined for each identified user. The gamma correction factor is determined by outputting to a Haptic Output interface a texture simulation comprising spaced grooves or ridges. By correlating user response to the perceived “feel” of the texture (rough, medium or smooth scale for example) the user's perceptual factors can be determined. Subsequently applying the perceptual factors to effect a mathematical adjustment (power) of texture in simulation algorithms allows output simulations to be adapted so that each user has a corresponding perception of the simulated objects.