Assistive device with a refreshable haptic feedback interface

An assistive method, comprising:

• in an assistive device that comprises a haptic feedback controller and a haptic feedback interface that includes a plurality of haptic elements:
• transforming sensor data of a three-dimensional (3D) real-world area within a first proximity range of the assistive device into a defined format, wherein the sensor data is associated with a plurality of different types of sensors;
• generating, by the haptic feedback controller, a first touch-discernible output layout on the haptic feedback interface by the plurality of haptic elements,
• wherein the first touch-discernible output layout corresponds to a first reproduction of the (3D) real-world area within the first proximity range of the assistive device, and
• wherein the first touch-discernible output layout includes at least a first set of haptic indicators to discern movement of a first set of moving objects within the first proximity range,
• wherein the first touch-discernible output layout is generated based on the transformation of the sensor data of the 3D real-world area within the first proximity range of the assistive device into the defined format;
• updating, by the haptic feedback controller, the first touch-discernible output layout to a second touch-discernible output layout based on a change of the first proximity range to a second proximity range,
• wherein the plurality of haptic elements are associated with a plurality of objects of the 3D real-world area within the first proximity range or the second proximity range from the assistive device;
• and
• controlling, by the haptic feedback controller, a movement of one or more of haptic indicators of the first set of haptic indicators or a second set of haptic indicators on the haptic feedback interface, based on the 3D real-world area and a difference between the first proximity range and the second proximity range.