Seiko Epson Corporation

George Lyons

Tatiana Pavlovna Kadantseva

Barinder Singh Rai

Eric Jeffrey

Doug McFadyen

Raymond Chow

William Low

Ricardo Te Lim

Manfred Wittmeir

Apparatuses and methods are provided for determining whether a user intends to provide an input using an image of a control appearing on a surface. An apparatus may include first and second cameras to capture set and second sets of two or more images of the surface, and a unit to determine whether various conditions are true. A first condition is that a particular number of skin-color pixels are present within one cell of the two or more images. A cell location substantially coincides with the image of the control. A second condition is that the skin-color pixels persist for at least a particular time period. A third condition is that a region of skin-color pixels has a substantially rectangular shape. A fourth condition is that corresponding edges of skin-color pixels in the first and second sets of images are within a predefined offset distance. Additional conditions are disclosed.

Detecting user input provided to a projected user interface

A calibration image including dots and scale points is projected at first and second display surfaces. A location of a scale point may be modified. A location for a registration point is determined and the registration point is added to the calibration image. The projected calibration image is captured. A location of the captured registration point and locations captured scale points are identified. Captured dots that are projected onto the first display surface and their locations are identified. Each of the captured dots identified as being projected onto the first display surface are mapped to a corresponding dot of the calibration image. Dots of the calibration image that are not projected onto the first display surface are identified, locations of each of the identified dots are determined, and a synthetic dot is added to the captured image for each identified dot. The captured image may be provided as input to a process for determining one or more inverse offsets.

Method and apparatus for calibrating a projector for image warping

A method is provided for transmitting image data in a plurality of formats simultaneously over a data path. Successive data blocks, each comprising compressed image data representing a block of pixels of a first image are transmitted over a data path. During intervals between transmission of the successive data blocks, image data representing at least a portion of a second image is transmitted along the data path. An imaging module and imaging device capable of transmitting high resolution compressed data and lo resolution uncompressed data simultaneously over a data path are also provided.

Imaging module, interface, and method handling multiple simultaneous data types

In a preferred embodiment, a system includes a host, an image data source, and a graphics controller. The image data source provides a frame corresponding to a particular image size. The graphics controller is receives the frame. Preferably, the graphics controller is remote from the image data source and the host, and includes a fitting module for calculating a scale factor based on the image size, and a scaling unit for scaling the image according to the scale factor. In another preferred embodiment, a system includes a display device of a particular resolution, a memory, and a graphics controller. The memory is for storing a frame corresponding to a particular image size. The graphics controller preferably includes: a fitting module for calculating a scale factor based on the image size and the display device resolution, and a scaling unit for scaling the image according to the scale factor. The graphics controller may be adapted for retrieving the display device resolution from the display device. Preferred embodiments prevent the host from being repeatedly interrupted each time a new frame needs to be stored or written to the display device thereby improving host and system efficiency.

Efficient scaling of image data in graphics display systems

The invention is directed to a method and apparatus for selectively reducing the depth of digital data. Multiple bit digital data is transmitted to a data receiving device on a plurality of data output lines. Each data output line corresponds, respectively, to a unique one of the bits of the data. A determination is made whether, in the data receiving device, a power saving mode of operation of the device is to be initiated. If so, one or more of the data output lines are selected as non-transmitting data lines, one or more remaining data input lines are driven with corresponding bits of the data, and the non-receiving data lines are placed in a neutral state.

Method and apparatus for selectively reducing the depth of digital data

Multiple independent images are presented on multiple display devices by driving the display devices with a common set of control signals and a multiplexed set of data signals that convey information representing interleaved components of each independent image. In a preferred embodiment, a unique clock signal is provided to each respective display device that is aligned with the interleaved components of the image to be presented by that respective display. The control, data and clock signals may be obtained by multiplexing control and data signals received from display pipeline circuits, or by generating the, signals using a composite circuit that implements the features of two or more multiplexed display pipeline circuits.

Growing community of inventors

Langley, Canada

George Lyons