Abstract: TV settings such as brightness can be established by sending from a TV signals from an ambient light sensor to a network server, with the network server establishing settings such as brightness in response for a program being played on the TV.

Abstract: A video projector device includes a visible light projector to project an image on a surface or object, and a visible light sensor, which can be used to obtain depth data regarding the object using a time-of-flight principle. The sensor can be a charge-coupled device which obtains color images as well as obtaining depth data. The projected light can be provided in successive frames. A frame can include a gated sub-frame of pulsed light followed by continuous light, while the sensor is gated, to obtain time of flight data, an ungated sub-frame of pulsed light followed by continuous light, while the sensor is ungated, to obtain reflectivity data and a background sub-frame of no light followed by continuous light, while the sensor is gated, to determine a level of background light. A color sub-frame projects continuous light, while the sensor is active.

Abstract: A display image of a frame is input in time series. An inverse colored image to cancel the display image is generated. The display image is divided into a plurality of subfields, and the inverse colored image is also divided into a plurality of subfields. A time divisional image is generated by disposing a display time of a subfield of the inverse colored image before and after a display time of a corresponding subfield of the display image. While displaying the time divisional image on a screen, a light from the screen is transmitted in synchronization with display timing of the display image in a display time of the time divisional image, and the light is cut off in synchronization with display timing of the inverse colored image in the display time of the time divisional image.

Abstract: A method and system are provided in which a video channel is selected from multiple video channels in a video processor. A picture quality profile associated with a content of the selected video channel is received by the video processor to modify a value of one or more picture quality control parameters utilized by the video processor that are mapped to a user level setting. Metadata associated with the content of the selected video channel may be determined and communicated to a server. The server may utilize the metadata to determine a picture quality profile for the video processor. In some instances, environmental conditions associated with a television or display device may be measured and communicated to the server to determine the picture quality profile. For example, the measured environmental conditions may comprise one or more of an ambient light, a sound, a motion, and a temperature measurement.

Abstract: Extracting and processing video content encoded in a rendered color space to be emulated by an ambient light source, comprising extracting dominant color information from a video signal and transforming the color information through unrendered color space using tristimulus primary matrices to form a second rendered color space for ambient distribution. Steps include quantizing the rendered color space to form an assigned color distribution, such as by reducing possible color states, or binning to form superpixels; and selecting a dominant color using a mode, mean, median, or weighted average of pixel chromaticities. A color of interest can be further analyzed to produce a true dominant color, and past video frames can guide selection of dominant colors in future frames.

Abstract: In order to calculate the calorimetric value of a color patch under a given viewing illuminant, a plurality of colorimetric value sets obtained by measuring the colors of color patches under a plurality of illuminants are stored in a memory, the type of spectral distribution and white point information of the viewing illuminant are obtained (S12), and a calorimetric value set corresponding to the type of spectral distribution of the viewing illuminant is selected (S13). A colorimetric value set under the viewing illuminant is calculated from the selected calorimetric value set, on the basis of the white point information of the viewing illuminant and the white point information of the illuminant of the selected colorimetric value set (S14).

Abstract: An apparatus and method for improving visibility of an image. The apparatus includes: a lookup table (LUT) generating module generating an LUT having image data in a high illuminance environment corresponding to image data of an input image set therein so as to increase lightness and chroma of the input image according to external illuminance; an image mapping module mapping the image data of the input image into the image data in the high illuminance environment on the basis of the generated LUT; and a local contrast increasing module increasing local contrast of the mapped image data using a parameter for adjusting the local contrast according to the external illuminance.

Abstract: In order to obtain colorimetric data close to the color appearance under an actual viewing condition, a plurality of conversion data for converting colorimetric data measured under the first geometric condition of colorimetry into that measured under the second geometric condition of colorimetry are held, and the information of a viewing illuminant and colorimetric data measured under the first geometric condition of colorimetry are obtained. Conversion data which corresponds to the information of the viewing illuminant is interpolated from the plurality of conversion data which are held. The colorimetric data measured under the first geometric condition of colorimetry is converted into that measured under the second geometric condition of colorimetry using the interpolated conversion data.

Abstract: In order to obtain an excellent color processing result by calculating an optimal white point in partial adaptation, first white point data which indicates white of a device is input, the first white point data is projected onto a predetermined curve, and white point data in the partial adaptation located on the predetermined curve is calculated using the projected first white point data and the second white point data located on the predetermined curve. Color processing of input color data is performed using the white point data in the partial adaptation, which is corrected in accordance with the positional relationship between the first white point data and projected first white point data, and the color reproduction characteristics of the device.

Abstract: According to an aspect of the invention, a video display apparatus includes: a sensor that measures an external environment to output the external environment; a storing unit that stores a correction value associated with the measured value; a adjusting unit that changes the correction value based on a given operation by a user; and a processor that adjusts a picture quality of a picture to be displayed on a display based on the measured value and the correction value.

Abstract: A method for compensating an image produced by image means for implementing image information takes account of ambient illumination. Luminance of external background illumination around the image means is measured. The measured luminance of the background illumination is compared with preset tristimulus values and a reflectance factor of the image means, a comparison result is computed, and a control signal is generated to compensate luminance and chroma of an image. Luminance and chroma of the image means are compensated in response to the control signal.

Abstract: Various techniques for implementing aspects of color control in display devices are disclosed. One exemplary technique includes measuring an input/output profile of a display, then applying a mathematical model to the display's measured profile to generate color control tables. One exemplary technique may include tracking a first color temperature below a high-luminosity transition point and gradually transitioning to tracking a second color temperature above the high-luminosity transition point. One exemplary technique may also include gradually transitioning from tracking a darklight color temperature below a low-luminosity transition point to tracking the first color temperature above the low-luminosity transition point. Another exemplary technique may include tracking a response curve for a specified chromaticity above a low-luminosity transition point.

Abstract: A moving image processing apparatus includes a brightness information acquisition unit configured to acquire, from an input video signal, brightness information indicating brightness of the video signal, an illumination information acquisition unit configured to acquire illumination information about an environment of the moving image processing apparatus, an adaptation coefficient calculation unit configured to calculate an adaptation coefficient for an observer based on brightness when the brightness indicated by the brightness information is less than a first threshold and the brightness indicated by the illumination information is less than a second threshold, a correction coefficient calculation unit configured to calculate a correction coefficient to be used for image correction of the video signal based on the adaptation coefficient calculated by the adaptation coefficient calculation unit, and an image correction unit configured to perform image correction on the video signal using the correction coef

Abstract: An apparatus and method for display color fidelity optimization using performance prediction are provided. A method of the present invention can include obtaining data regarding available display parameters of the display device, obtaining feedback information regarding respective current values of the display parameters of the display device, performing simulations to determine how changes in the display parameters affect a display of the video content on the display, determining a prediction of a performance of the display device based upon the current values of the display parameters, determining an effect of ambient light on at least one of the determined prediction and the display parameters, and optimizing the display parameters in accordance with at least one of the determined prediction and the determined effect of ambient light. In an alternate embodiment, the method can further include recovering one or more original current values of the display parameters subsequent to a change.

Abstract: In a method of managing color output by appearance intent a color display value is received. The color display value comprises at least one appearance intent tag and is associated with an item of graphic content. The color display value is converted into an intermediate color value such that an appearance intent specified by the appearance intent tag is preserved in the intermediate color value. The intermediate color value is converted into an output color display value recognizable by an output device, such that the appearance intent is preserved in the output color display value.

Abstract: The remote control signal receiver of a TV sends not only user-generated commands to the TV processor but also, when no commands are sensed, an ambient light signal that can be used to adjust the brightness of the TV.

Abstract: An additional data generation system is provided which can produce an output based on additional data to impart an information conveying effect to an output based on output data. The additional data generation system includes a source unit 1 configured to supply an output signal, an operation control unit 4 configured to obtain output data from the output signal, a first output unit 5 configured to produce an output based on the output data, an additional data generator 3 configured to generate additional data which emphasizes a feature of the output from the first output unit, a second output unit 6 configured to produce an output based on the additional data, and an operation unit 2 configured to output, to the operation control unit, an operation signal which is used to change the output data.

Abstract: Extracting and processing video content encoded in a rendered color space to be emulated by an ambient light source, comprising extracting color information from a video signal and transforming the color information through unrendered color space using tristprimary matrices to form a second rendered color space to drive the ambient light source. Video signal decoding into frames can allow extracting average or other color information from an selected screen regions to reduce bitstream load, and negative gamma correction helps prevent garish or inappropriate chromaticities and luminance.

Abstract: The invention relates to an Ambient illumination system (100), a display device (200), and a method of generating an illumination variation. The ambient illumination system generates the illumination variation using an ambilight signal (A, (A1,1. . . A4,5), P, (P1,1, . . . P4,5)) derived from a video-image (I1, I2), the ambient illumination system comprises an analyzer for deriving the ambilight signals from the video-image and comprises a controller (10) for driving the light source (L1, L2, . . . L8) using the ambilight signal. The illumination variation is displayed by the controller while not displaying the video-image.

Abstract: An image display apparatus and method are provided. The image display apparatus includes an external light detection module which detects an intensity of external illumination; a storage module which stores a plurality of light emitting unit control values; and a control module which selectively performs, according to a result of a determination, a lightness compensation operation for compensating a lightness of a light emitting unit and a visibility adjustment operation for adjusting the visibility of the original input image. The method includes detecting an intensity of external illumination; determining whether a visibility of an original input image can be ensured according to an input light emitting control value and the detected external illumination intensity; and selectively performing, according to the determination, a lightness compensation operation for compensating a lightness of a light emitting unit and a visibility adjustment operation for adjusting the visibility of the original input image.

Abstract: The control unit provided in the image processing apparatus determines, based on the measurement result obtained by the time measurement unit, whether or not a change timing of external light detected and determined by the external light detection unit and the external light change determination unit is before a predetermined time has elapsed since the input switching detection unit detected the switching process. When the change timing of external light is before a predetermined time threshold value Th1 has elapsed as a result of the determination, the control unit provides instructions to the image processing unit about executing image quality adjustment processing while increasing the adjustment amount per unit time.

Abstract: A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense.

Abstract: Extracting and processing video content encoded in a rendered color space to be emulated by an ambient light source, using perceptual rules for intelligent dominant color selection. Steps include quantizing the video color space; performing dominant color extraction by using a mode, median, mean, or weighted average of pixel chromaticities; applying perceptual rules to further derive dominant chromaticities via [1] chromaticity transforms; [2] a weighted average using a pixel weighting function influenced by scene content; and [3] extended dominant color extraction where pixel weighting is reduced for majority pixels; and [4] transforming the dominant color chosen to the ambient light color space using tristimulus matrices. A color of interest can be further analyzed to produce a true dominant color, and past video frames can guide selection of dominant colors in future frames.

Abstract: A DC-DC converter includes a temperature compensation circuit arranged between a feedback differential amplification circuit and an output voltage detection circuit to compensate the variation of the voltage level of the DC output voltage of the converter caused by ambient temperature changes. The temperature compensation circuit includes a temperature detection circuit that detects the ambient temperature and, in response thereto, generates a temperature signal; and a current source circuit that is connected between a feedback signal input terminal of the feedback differential amplification circuit and the output voltage detection circuit. The current source circuit, based on the temperature signal, generates an electrical current and a compensation voltage proportional to the electrical current. The compensation voltage is applied to the DC output voltage to thereby regulate the voltage level of the DC output voltage.

Abstract: Flicker free operation of ambient light sources that emulate video content during low luminance conditions, where the ambient light source is output thresholded so that an on/off change of state of the ambient light source can be initiated after an intensity variable passes one or two thresholds. Output thresholding is used when extracting and processing video content encoded in a rendered color space, which can be decoded into frames tapped by an interframe interpolation process using only color information from selected frames, such as extracting average or other color information from an selected screen regions. Negative gamma correction helps prevent garish or inappropriate chromaticities and lumina.

Abstract: A method and an apparatus for adjusting a display parameter are provided. The method includes the steps of: (a) calculating a scene change value between a current frame and a previous frame; (b) setting a first weight according to the scene change value; (c) calculating an original parameter of the current frame; (d) providing a display parameter of the previous frame; (e) calculating a display parameter of the current frame according to the first weight, the original parameter, and the display parameter of the previous frame.

Abstract: A method and apparatus for processing a digital image to be displayed on a display panel illuminated with a backlight module. The backlight module is set to a specific backlight duty according to a luminance statistic of the digital image. The digital image is remapped through a tone mapping function formed according to the specific backlight duty and the luminance statistic.

Abstract: A digital photo frame (DPF) includes a power management unit connected to a power source, configured for distributing power from the power source to the DPF; a display panel configured for displaying displayable media; a shaking sensor configured for detecting whether the DPF is being shaken and producing a trigger signal when the DPF is being shaken; a light detector configured for detecting current ambient light level and producing a light signal corresponding to the detected ambient light level; and a processing unit configured for adjusting brightness of the display panel according to the trigger signal and the light signal.

Abstract: The invention provides a video system comprising at least one input for receiving incoming video data and at least one output for delivering outgoing video data to a display device. The system further comprises at least one processor for converting the incoming video data into outgoing video data as a function at least of one item of information delivered by a detecting element. According to an embodiment of the invention, the detecting element is suitable for measuring at least one colorimetric characteristic of an image produced by the display device. According to another embodiment of the invention, the processor converts incoming video data into outgoing video data as a function at least of one item of information delivered by a user. In one embodiment of the invention, the information delivered by the user represents a desired calorimetric response for different incoming data.

Abstract: According to an aspect of the present invention, there is provided with a screen transmission device including: an information receiver configured to receive operating condition information indicating an operating condition of a screen display device; a coloring determiner configured to determine coloring of screen data to be displayed on the screen display device based on the operating condition information; a screen data generator configured to generate screen data to be displayed on the screen display device according to the coloring; and a screen data transmitter configured to transmit the screen data to the screen display device.

Abstract: An image processing apparatus of the present invention comprising (a) a first signal processing circuit for applying gamma correction to an n-bit (n: a natural number) digital signal inputted as a video signal and for converting the n-bit digital signal into an m-bit (m>n, m: a natural number) digital signal, and (b) a second signal processing circuit for adding a noise signal, which is used for pseudo contour reduction, into the m-bit digital signal from the first signal processing circuit and for outputting a Q-bit (Q: a natural number) digital signal, which is obtained from rounding off a less significant (m?Q) bit (Q?n) from the m-bit digital signal, to a display section.

Abstract: According to an aspect of the present invention, there is provided a video image quality control apparatus including: a video processing module configured to adjust image quality based on a control signal; a data table holder configured to hold a data table representing information of a start time and an end time of a daytime in each area; a determination module configured to determine a current location of the apparatus based on areal setting information of a receiving channel; a specifying module configured to specify a start time and an end time of a daytime at the current location by referring to the data table based on information of the current location; and an adjusting module configured to output the control signal based on a start time and an end time of a daytime specified by the specifying module.

Abstract: A display device calibration system is provided. The overall color response of a display family is characterized, and the idiosyncratic color response characteristics of the display family are determined. The idiosyncratic color response characteristics of the display family are related to respective idiosyncratic color response points. Individual idiosyncratic color response point values for an individual member of the display family are determined. The color response of the individual member of the display family is specified from the individual idiosyncratic color response point values of the individual member of the display family and the overall color response of the display family.

Abstract: A display device according to an embodiment of the invention includes a display panel, a drive circuit that drives the display panel, an illuminating unit that illuminates the display panel, a photosensing section Ls having an ambient light photosensor Ts that senses the brightness of ambient light and a capacitor Cw that is charged with a predetermined reference voltage via a first switch S1, an ambient light photosensor reading section Re1 that reads a value sensed by the photosensing section, and a controller that controls the illuminating unit according to an output of the ambient light photosensor reading section. The ambient light photosensor reading section is provided with a noise avoidance unit that avoids erroneous sensing in the photosensing section induced as a result of noise generated when the drive circuit operates.

Abstract: A system for facilitating accompanying an image or video rendering with a concurrent controlled ambient lighting, comprises a color selector (302) for selecting a color of the controlled ambient lighting in dependence on scene lighting information associated with the image or with at least one image of the video. An image analyzer (304) is provided for computing an illuminant parameter indicative of the scene lighting based on the image or video, wherein the color selector is arranged for selecting the color in dependence on the illuminant parameter.

Abstract: A process for creating three-dimensional or relief views with the help of software running on a computer system for adjusting brightness of a scene comprising a plurality of pixels includes: determining a representative brightness of at least one predetermined area of the scene based on brightness of each pixel of the at least one predetermined area; comparing the average brightness to a reference value; and correcting the brightness of at least a portion of the scene in accordance with a result of the comparison.

Abstract: System and method for computing coefficients for color correcting rendered colors used in displaying images. A preferred embodiment comprises measuring color values of light output for a display system, receiving color values of desired colors, and computing a color correction matrix based on the measured color values and the input color values. The color correction matrix may be used to modify color commands to a light engine of the display system. The modifications to the color commands permit the storage and use of a set of color commands designed for a reference display system, simplifying display system design and manufacture.

Abstract: An ambient light system applied in a TV including a display panel, a loudspeaker and a plurality of ambient light sources includes an audio level detector, a pattern generator, and an ambient light controller. The audio level detector detects the level of an input audio signal to obtain a detected level. The pattern generator generates an ambient light pattern based on the detected level by reference to a selected operation mode. The ambient light controller controls the intensity of one or more ambient light sources based on the ambient light pattern.

Abstract: A method is set forth for automatically adjusting screen and keypad brightness on a mobile electronic device having a light sensor, display screen and keypad, for optimum legibility under varying lighting conditions, with minimal eye strain and distraction to the user. The method includes obtaining light level samples from the light sensor, and independently adjusting backlight intensity of the display screen and keypad responsive to the light level samples. Preferably, correct screen and keypad adjustments are made responsive to the user pulling his or her handheld device out of its holster notwithstanding non-optimal ambient light detection while the device is being removed from the holster. According to another aspect, the described method allows for ambient light detection in a handheld device where the light sensor and a message notification indicator share a common light pipe.

Abstract: A method of controlling an ambient system (1) including a presentation apparatus (6-8, 16,17) for rendering a media signal and an ambience control system (2) for adjusting at least one perceptible aspect of ambient conditions prevailing in an environment of the presentation apparatus, includes selecting one of a set of media signals available for rendering based upon a mood to which the ambience control system has been set to adjust the at least one perceptible aspect of the ambient conditions. The method further includes obtaining respective measures of at least one characteristic of a plurality of the available media signals and making the selection using a mapping of the at least one characteristic to data representative of a mood space.

Abstract: A wireless TV system includes a base station including a wireless signal processor to process a predetermined video signal into a wireless signal, and a transmitter to transmit the wireless signal from the wireless signal processor; and a wireless TV comprising a receiver to receive the wireless signal from the transmitter, an LCD displaying a picture based on the wireless signal, a backlight unit to illuminate the LCD, a battery to supply power, an inverter to supply the power from the battery to the backlight unit, and a controller to determine whether a wireless communication state is normal or abnormal based on the received wireless signal and to control the inverter to lower a brightness level of the LCD into a predetermined brightness level when the wireless communication state is abnormal.

Abstract: A display device capable of compensating for luminance of an environment is disclosed. The display device includes: a sensor, for sensing the luminance of the environment to generate a sensing signal corresponding to the luminance; a scaler, coupled to the sensor, for processing an original image signal according to the sensing signal to generate an adjusted image signal; and an image outputting device for outputting an image according to the adjusted image signal; wherein the scaler includes: an image signal adjuster for adjusting the original image signal to compensate for the luminance and generate a compensated image signal; and a gain controller coupled to the image signal adjuster for adjusting a gain setting and utilizing the adjusted gain setting to process the compensated image signal in order to generate the adjusted image signal.

Abstract: A method for emitting an ambient light corresponding to a display image on a display device includes the following steps. A color parameter group is extracted from overall pixels of a frame, an average color and/or an average brightness corresponding to the frame are/is obtained by calculating the color parameter group, and an ambient light corresponding to the average color and/or the average brightness is emitted according to the average color and/or the average brightness.

Abstract: An image processing and controlling system is provided in the present invention. In addition to adjusting the image displaying modes according to the ergonomic look-up table, the present invention is further capable of adjusting the weighting value with respect to each image characteristic value of an initial image according to lighting characteristics of an ambient light system such that a display unit can provide the most comfortable viewing conditions and the best image quality under different ambient lighting characteristics. In another embodiment, the present invention further functions to control the ambient light system according to the image characteristics of the weighted output image. By means of the foregoing dual controlling ways, the image processing and controlling system may provide appropriate output images corresponding to different viewing scenario and conforming to the requirement of output quality.

Abstract: A display method and system maps each source image pixel from a source device into several display pixels on a display screen, where the characteristics of the display pixels are selectively controlled to provide desired visual effects such as multiple luminance levels, increased color depth, increased dynamic luminance range and manipulation of temporal characteristics of the display.

Abstract: Provided is an audio visual environment control system capable of realizing optimal audio-visual environment illumination control in accordance with the illumination condition upon shooting of a display image. A data transmission device comprises: a data multiplexing portion for multiplexing the shooting illumination data indicating the illumination condition at the shooting of each scene of video data on the video data, and a transmitting portion for modulating and transmitting the video data on which the shooting illumination data is multiplexed. A data receiving apparatus which receives the data comprises: a data separating portion 22 for separating the shooting illumination data from the video data, a CPU 23 for controlling the illuminating light of an illuminating device 27 in accordance with the illumination data, and an illumination control data generating portion 24.

Abstract: Embodiments of the present invention comprise systems and methods for generating and applying image tone scale corrections with improved color fidelity.

Abstract: A display system may include an identifier configured to identify an image display condition associated with the display of an image produced by the display system, an apparatus configured to produce a plurality of differently colored images, and a display device. The images have color characteristics based on image information and the identified display condition. Differently colored images may be directed along associated portions of an optical path. The display device may be coupled to the apparatus and may be configured to display a color image formed of the differently colored images.

Abstract: An image signal processing method for performing nonlinear compensation on an image signal to be fed into a display device (103). The characteristics of nonlinear compensation are changed according to the brightness of a place in which the display device (103) is installed. This method can make the characteristics of brightness of human beings feel linear with respect to an image signal, even when the display luminance of the display device (103) is uniformly increased by the influence of ambient light.

Abstract: A mobile display control system is provided including providing a camera for monitoring an ambient light level; modifying an unprocessed video stream based on the ambient light level from the camera for forming a video stream; generating a pixel brightness and a contrast from the video stream and the ambient light level; creating a gamma corrected stream from the pixel brightness, the contrast and the video stream; and adjusting a display for viewing a video in the ambient light level.