Abstract:
A two-dimensional shift array for use in image compression VLSI techniques. The present invention utilizes a two-dimensional shift array which provides a significant savings in terms of required silicon area over a conventional implementation.
Abstract:
An improved method for converting between two color spaces such as the RGB and YIQ color on a 32 bit microprocessor. The present invention only requires in total number of operations three table look-ups, two adds, two barrel shifts and two masking operations. In terms of speed it is believed that the present invention is optimal for microprocessors such as 32 bit microprocessors.
Abstract:
Transforms such as the DCT are useful for image compression. One close relative of the DCT is preferred for its arithmetic simplicity. A method and apparatus is described whereby the quantization operates with speeds comparable to 16 bit transforms yet the mean squared error is comparable to that of a 32 bit transform. The factorability of the transform into a relatively rapid set of additions and a set of multiplications permits an efficient pipelined data flow wherein the addition sections of the vertical and horizontal transforms are performed by the same hardware prior to a final multiplication.
Abstract:
A novel quantization method for use in image compression techniques provides a 3-6% improvement in compression which is achieved with minimal additional hardware or software and yet which is compatible with proposed standard techniques.
Abstract:
A color image compression system and method provides an improved technique of combining various image processing techniques to obtain high quality color image compression. The present invention provides color image compression, especially high quality original images that require up to 24 bits of data per pixel. The present invention utilizes a delta quantizing technique between an array of pixels to provide an improved color image compression aspect.
Abstract:
A digital camera for capturing images and transmitting captured images over a wireless network includes a sensor for capturing images; a display for displaying at least one captured image; at least one user input for selection of at least one captured image and for selection of a wireless network; a communication interface capable of transmitting the at least one selected image over the selected wireless network; a memory for storing a password needed to utilize the selected wireless network; and a processor for controlling the transmission of the at least one selected image over the selected wireless network utilizing the stored password.
Abstract:
Digital camera includes an image sensor receiving incident light of a scene, the digital camera captures an image corresponding to the incident light; display displays the plurality of captured images and displays a menu of destinations; at least one user input for selection of at least one image from the plurality of captured images and a destination from the menu of destinations displayed on the display; communications interface transmits the at least one selected image to the selected destination over one of a plurality of networks, the plurality of networks including at least two different types of wireless networks; memory; and processor coupled to the image sensor, the display, the at least one user input, the communications interface, and the memory, the processor controlling the transmission of the at least one selected image to the selected destination using either one of the at least two different types of wireless networks.
Abstract:
A computer-implementable method, system and computer-usable medium includes a virtual contact group that can be dynamically created, in response to a particular user input such as, for example, registration by the user with a particular organization and/or facility. The virtual contact group generally includes a plurality of key or designated personnel. The virtual contact group is associated with the user. The designated personnel are then allowed to communicate electronically with one another within the virtual contact group to provide a coordinate service to the user. The virtual contact group is defined based on a user profile associated with the user. The virtual contact group can be stored within one or more memory locations of a computing device associated with one or more designated personnel among the virtual contact group. Such a computing device can be, for example, a wireless communication device capable communicating with the network and/or a server associated with the network.
Abstract:
A wireless communication system operating in the presence of the periodic noise signals such as from a microwave oven, the communication system, including at least two wireless communication stations with each station including a transceiver, each such transceiver. Each transceiver includes a detector for detecting periodic noise signals and producing a first signal indicating the presence of noise signal's quiescent period and second signals indicating the end of quiescent periods of such periodic noise signal. A controller responsive to the first and second noise signals controls the transceiver to provide effective communication with an other transceiver which minimizes the noise effect of the periodic noise signal. The transceiver transmits information concerning the detected quiescent period for use by the other transceiver to determine when to transmit during such quiescent period.
Abstract:
An encoding technique in which numeric data in a set of data is selected and the least significant bits (LSBs) of numeric data values in the numeric data are replaced with a single least significant bit that is shared by the numeric data values in the numeric data.