Compress Pixels of an Image Without Moving the Edge of the Image Publication Date: July 28, 2005
Pixels of an image are compressed but without moving the edge of the image in like keystone correction. Image compression to any given point. Pixels of the image are compressed in any given area. This way if you project an image along a wall so that it needs major keystone correction and a person's face is part of the image you can squeeze the image in directions so that the person's face can be corrected. Not like keystone correction that travels with a mask. We would still use the entire pixel map but a portion of the unkeystone corrected image would have pixels compressed to correct that portion of the image.
For example, a projection person walking from right to left in an unkeystone corrected image would walk from a very out of focus area to an area of the image that has been corrected and suddenly they appear more in focus and not distorted.
This could provide some very useful visual effect.
Controls would shift an area where compression of pixel information would begin and how much get compressed.
or
a circular area could be moving within the image the circular area is like a circle of correction. The circle area could move either randomly or be made to be programmed in any area of the image. Inside of the circular area and even overlapping the circular area pixels would be compressed in a direction that repaired the distortion of the unkeystone corrected image.
Lens Shift Parameter Publication Date: June 1, 2005
Automated lighting products may be provided with Lens Shift. Lens Shift has been used for many years with great success by the projector industry. The DL.1 and DL.2 projectors already have the capacity for Lens Shift today. Here is what Projector People (see www.projectorpeople.com) write about Lens Shift:
Projector Lens Shift
is a great feature for a conference room or home theater projector because it provides greater installation flexibility. What's so great about installation flexibility? It means that do-it-yourself home theater and business projector installers can spend less time on the mathematics of installation, and more time enjoying their new projector.
What is Lens Shift?
Lens shift provides space to move the lens itself left and right or up and down within the projector housing. This adjustment can be made either manually with a dial or joystick, or mechanically using the menu buttons. This extra space to reposition the lens means greater leeway in the placement of a projector in a room.
For example, imagine looking at a picture on your wall. Now imagine your picture moving up or down so that the top of the image is now located where the center of the image used to be. A projector with lens shift can make an adjustment like this without requiring you to physically move the projector. Rather, the lens inside the projector housing is moving to create the effect. Some projectors, like the Hitachi HOME-1, feature a wider flexibility allowing you to move the image almost twice as far. The HOME-1's lens shift has the most dramatic lens shift in and entry level home theater projector.
Products like the DL.1 or DL.2 might offer Lens Shift as a variable parameter that would be controlled from the lighting console. The digital light might contain a motor or actuator to move the lens remotely to accomplish lens shift. The light would accept commands input by an operator from the control console sent over a communications system that would be received by a processing system at the digital light. The processing system would process Lens Shift commands and change the position of the lens relative to the light valves causing lens shift. Lens Shift could also be set at the input panel on the digital light itself.
Lens Shift Addition
Publication Date: January 5, 2007
A digital light can also have lens shift. The lens shift mechanicals are already available with the current DL.2 and controllable by operating software. A new rev of the DL.2 will have the bezel changed to allow a further extent of lens shift to be remotely controlled by an operator of a console. The lens shift may be on or off (one extreme to the other) or may be variable.
Trackball Centered Camera
Publication Date: May 31, 2006
The camera image from a moving video light such as a DL.2 is viewed by an operator. The operator can pick any location in the field of view of the camera to center the DL.2 . The operation would be similar to MapQuest, for example The operator uses a trackball or a mouse and clicks the area of the camera image that the operator wants the IPLD to be centered on. The camera image is used to guide be input the DL-2 on a stage or projection surface.
Variable Cloud-Like Mask For Undistinctive and Variable Edge
Publication Date: July 28, 2005
Variable cloud like mask provides undistinctive edge that can be constantly varying. A variable mask that forms a cloud like edge around the image but the cloud curves are continually moving. That way a 4x3 image can have an undefined edge but yet the edge should be computer generated and have variable fade. Very good for generating an image that does not have a defined edge but looks like the image is projecting on a cloud. Controls would vary the waveforms around the edge. Several waveforms may form the edge. Some waveforms may be sharp (like in degrees) and some may be very soft. Also we could have a rate control that increased the action of the edge.
