Core Logic Inc.

Lg Electronics Inc.

Young-Sin Lee

Gi-Moo Choi

Hwan-Jong Kang

The present invention provides non-linear tone mapping apparatus and method and a computer readable medium stored thereon computer executable instructions for performing the method. The non-linear tone mapping apparatus according to the present invention comprises a luminance value computing unit for computing a luminance value of each pixel of an object image using an image information of each pixel; a computing unit for computing a light adaptive value of each pixel using the image information and luminance value of each pixel, the light adaptive value representing the degree of response to brightness of the image in the image information of each pixel; and a converting unit for converting the image information of each pixel of the object image using a ratio of the image information of each pixel to the light adaptive value.

Non-linear tone mapping apparatus and method and computer readable medium stored thereon computer executable instructions for performing the method

An apparatus for reducing image noise with filter matrix comprises a first input unit for receiving input of an object image data for conversion; a second input unit for receiving input of a size data of a convention area; a first output unit for setting conversion unit matrixes movable in the conversion area in a predetermined direction relative to a standard matrix; a second output unit for outputting average values of image information of pixels corresponding to the conversion unit matrixes set by first output unit and outputting an average value of image information of pixels corresponding to the standard matrix; an arrangement unit for calculating difference values between the average value of the standard matrix and the average values of the conversion unit matrixes and arranging calculation (difference) values according to size; and a conversion unit for low-pass filtering the conversion unit matrixes having calculation values smaller than a predetermined ordinal number among the arranged calculation values.

Apparatus and method for reducing image noise with filter matrix and computer readable medium stored thereon computer executable instructions for performing the method

A method for reducing image noise with edge tracking comprises receiving input of an object image data for conversion and a size data of a matrix, namely, a conversion area of the image data; calculating a statistical difference value between each pixel of the image data and a pixel adjacent to the pixel in a predetermined direction and calculating edge map data obtained from the calculation in each predetermined direction; and converting an object pixel for conversion of the image data using calculation pixels located in the matrix of the image data, wherein the conversion step outputs main calculation pixels, namely, calculation pixels having a statistical difference value below a predetermined level with a value of the object pixel among the calculation pixels based on the edge map data, and converts the object pixel using a statistical calculation value of the main calculation pixels.

Apparatus and method for reducing image noise with edge tracking and computer readable medium having stored thereon computer executable instructions for performing the method

An apparatus for digital image stabilization according to the present invention comprises an image signal processing module for receiving image signals generated under first and second exposure value conditions (first exposure value condition&#x3e;second exposure value condition) from an image sensor, and outputting digital image signals of a first size and a second size (first size&#x3c;second size) corresponding to the first exposure value condition and the second exposure value condition, respectively; and an applied image processing module for determining adaptively the second exposure value condition from the first exposure value condition, changing an exposure attribute of the image sensor from the first exposure value condition to the second exposure value condition, receiving the image signals of the first size and the second size, and correcting a property of the image signal of the second size based on the image signal of the first size.

Apparatus for digital image stabilization, method using the same and computer readable medium stored thereon computer executable instructions for performing the method

Apparatus for digital image stabilization using object tracking can produce a digital still image free of an image blurring phenomenon caused by shaky hands without separate hardware and can produce an image that is bright, clear, and noise free. The apparatus includes an image signal processing unit that outputs a first digital image obtained under a first exposure value condition and a plurality of second digital images obtained under a second exposure value condition. The apparatus also includes a shaky hand compensating unit that compensates for motion in comparative second digital images relative to a reference second digital image using object tracking. The compensating unit then generates a shaky hand compensated image by overlapping each compensated comparative image with the reference image. The apparatus further includes an image property correcting unit that corrects a property of the shaky hand compensated image based on a property of the first digital image.

Apparatus and method for digital image stabilization using object tracking

Apparatus for digital image stabilization using object tracking includes an image signal processing unit that outputs a first digital image obtained under a first exposure value condition and a plurality of second digital images obtained under a second exposure value condition. The apparatus also includes a shaky hand compensating unit that compensates for motion in comparative second digital images relative to a reference second digital image by tracking an object in either a binary image or a reverse binary image of a respective second digital image that has the most objects (i.e., in the binary or reverse image). The compensating unit then generates a shaky hand compensated image by overlapping the motion-compensated images with the reference image. The apparatus further includes an image property correcting unit that corrects a property of the shaky hand compensated image based on a property of the first digital image.

Apparatus for digital image stabilization using object tracking and method thereof

A gatekeeper supporting a handoff and handoff method in an IP telephony system is disclosed. The gatekeeper is configured to perform third-party pause and rerouting (3PPR) signaling and to support the handoff using 3PPR signaling, so that a mobile terminal does not need to have a H.450.2 stack function. In addition, for a fast connect call, the H.245 control channel is induced and the 3PPR signaling, which is made through the H.245 control channel, is performed for every call including the fast connect call. Thus the handoff using the 3PPR signaling can be provided to every call. Moreover, the H.245 control channel for the fast connect call is set on the basis of the tunneling during a telephony, so that the fast connection can be maintained as it is and, thus, the fast handoff signaling can be provided.

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Seoul, South Korea

Young-Sin Lee