Thomson Licensing

Thomson Licensing S.a.

Scholly Fiberoptic Gmbh

Thomson Multimedia S.a.

Sebastien Weitbruch

Carlos Correa

Rainer Zwing

Cedric Thebault

Didier Doyen

Ingo Tobias Doser

Nicole Giessler

Sylvain Thiebaud

Jean-Claude Chevet

Philippe Le Roy

Massimo Kubon

Jochen Dietrich

Mateusz Cichosz

Gangolf Hirtz

Patrick Spring

Clemens Meier

Andreas Hanselmann

Alexander Raiola

An image recording method () and an image recording device () for recording a sequence of single images of a scene () are provided, wherein the scene () is illuminated using an illumination unit (), a light intensity generated by the illumination unit () is characterized by an illumination variable (), a setting of the illumination variable () is performed as long as a regulating reserve () of an optimum regulating range () of the exposure parameter () is present, and a setting of the illumination variable () is performed or repeated until the illumination variable () is within an optimum regulating range () of the illumination variable ().

Image recording method and image recording device

In an image processing method (), for images () in a image sequence (), in each case a position indication () of a center () of the image content () of individual images () is calculated in a completely computer-implemented and/or hardware-implemented, statistical evaluation method (). The center () is defined by a circle section () which is described or characterized by a separation line () between the image content () and a periphery () which is supplementary to the image content () in the image () or complementary therewith.

Image processing method, corresponding image processing apparatus and endoscope arrangement

A method and a device for displaying an image on an Organic Light Emitting Display where a frame is divided into two groups of subframes are provided for flicker-free and very high level motion rendition. The first group of sub-frames and the at least second group of sub-frames comprise corresponding sub-frames and constitute each a complete image in a video frame and corresponding sub-frames of two groups of sub-frames have similar but not automatically the same duration. The data signal of a cell comprises plural independent elementary data signals wherein each of the elementary data signals is applied to the cell during a sub-frame and the gray scale level displayed by the cell during the respective group of sub-frames depends on the amplitude of the elementary data signals and the duration of the sub-frames.

Method and device for displaying an image on an organic light emitting display where a frame is divided into two groups of subframes

The present invention relates to an active matrix OLED (Organic Light Emitting Display) device. It comprises a matrix of luminous elements associated to different color components (red, green, blue). According to the invention, the connection of the row driver and/or data driver to the luminous elements of the matrix is modified. Each output of the row driver is connected to luminous element associated to a same color component (red or green or blue).

Active matrix organic light emitting display (AMOLED) device

A device for correcting a defect pixel value of a CMOS image sensor unit is proposed, the image sensor unit comprising at least a first and a second pixel array. The image sensor unit is arranged to project the same image onto each pixel array. The correcting device comprises at least a first and a second input channel for receiving pixel values of the first and the second pixel array, respectively. The processing device is operable to replace the defect pixel value by a corrected pixel value, which is determined from values of neighboring pixels to the defect pixel of the same pixel array. The corrected pixel value is evaluated with respect to values of a corresponding pixel and its neighboring pixels of the second pixel array at the same location as the defect pixel of the first pixel array in respect to the projected image.

Processing device for correcting defect pixel values of an image sensor unit, image sensor unit with the processing device and method

The present invention relates to an apparatus for displaying an input picture of a sequence of input pictures during a video frame made up of N consecutive sub-frames, with N&#x2267;2, comprising

Method for grayscale rendition in an AM-OLED

A method and a device for encoding the video level of a pixel of a picture into a subfield code word in a display device using a PWM (Pulse Width Modulation) technology and subfields for displaying video picture. The bits of the subfield code word are computed recursively one after the other from the bit having the most significant weight to the bit having the least significant weight. In determining the state of a bit of the subfield code word, a first threshold and a second threshold is associated with the bit, the second threshold being greater than the first threshold, and the video level to be encoded by this bit and its following bits in the subfield code word are compared to the first and second thresholds. A state is allocated to the bit based on the comparison.

Method and device for encoding video levels into subfield code words

The invention relates to a method for processing data of video pictures for displaying the pictures on a display device like a Plasma Display Panel. The existing false contour effect compensation methods which make a false contour compensation based on shifting sub-field code word entries along the direction of the motion vector of a current pixel, produce an artifact in the pictures, in case of object crossings. In the appearing area there is a lack of light generation. The invention solves this problem by checking whether an area exists in the picture which is currently hidden but will appear in a next frame and providing an adapted compensation method for 'hole filling'. The invention also gives a solution for an improved compensation method which is based on a dragging of sub-field code word entries along a motion vector direction to a current pixel.

Method and apparatus for processing video pictures for improving picture quality for subsequent display

With the new plasma display panel technology new kinds of artifacts can occur in video pictures. These artifacts are commonly described as dynamic false contour effect, since they correspond to disturbances of grey levels and colors in the form of an apparition of colored edges in the picture when the observation point on the PDP screen moves. According to the invention such an artifact is compensated by analyzing the motion in the pictures assigning to each block of a picture a corresponding motion vector and performing a re-coding step in which a sub-field code word entry of a current pixel are calculated. For this purpose the motion vector is defined to point from a pixel in a previous picture to a pixel in the current picture. The sub-field code word entries for a current pixel (P) are determined by dragging sub-field entries of the pixels lying on the motion vector trajectory. In this way for each pixel there is an exact calculation of the sub-field code word of a pixel also for complex moving trajectories like zoom and rotation.

Method for processing video pictures and apparatus for processing video pictures

An improved addressing scheme for plasma display panel control comprises partitioning the panel into a number of sections and splitting the addressing period into correspondingly small addressing periods for each section. By varying the time distance between successive addressing periods of the sections from one sub-field to the other, at least for the sub-fields with higher weights, a better spread of the energy input and output of the plasma display panel is achieved and the power supply circuit for the display panel may be constructed with less expensive components.

Growing community of inventors

Kappel, Germany

Sebastien Weitbruch