46results about How to "Accurate tone" patented technology

An OLED display device includes: an array of light emitting pixels, each pixel having red, green, and blue OLEDs and at least one additional colored OLED that expands the gamut of the display device relative to the gamut defined by the red, green and blue OLEDs, wherein the luminance efficiency or the luminance stability over time of the additional OLED is higher than the luminance efficiency or the luminance stability over time of at least one of the red, green, and blue OLEDs; and means for selectively driving the OLEDs with a drive signal to reduce overall power usage or extend the lifetime of the display while maintaining display color accuracy. In accordance with various embodiments, the present invention provides a color display device with improved power efficiency, longer overall lifetime, expanded color gamut with accurate hues, and improved spatial image quality.

A method of color conversion includes providing a first color domain input signal set having plural input signals; sorting the input signals of the first color domain input signal set according to signal intensity; designing and generating plural 1-D look-up table sets for color polyhedrons; selecting a set of look-up tables for use with a specific color polyhedron, wherein said selecting is a function of a section of the polyhedron determined as a function of the input signal set; looking up values in the look-up table set as a function of the input signal set; generating weights as a function of the sorted signal intensities; and interpolating the output from the selected look-up tables as a function of the selected look-up table and the generated weights to produce a color domain signal set which is converted to a desired color domain signal set.

An ambient light adaptive color correction system and method are provided in the present invention. Firstly, a color information sensor measures color information of at least black and white reference images on a projector plane with influence of ambient light. Then a color correction information calculator calculates color correction information for color appearance matching and gamut mapping based on the measured color information and a projector profile. And after pre-calculation, an image data correction unit processes an input image according to the color correction information to produce a corrected-color image to be outputted to the projector. Accordingly, the output image displayed on the projection plane with influence of ambient light will have a close color appearance to that in the dark room.

A system, method and medium correcting a display image. The system includes a parameter calculation module to calculate a plurality of parameters required for a transform of a first image, based on a plurality of characteristic differences between the first image and a second image, into which the first image is to be transformed to visually match the second image, a first characteristic transform module to transform a first characteristic of the first image using the plurality of calculated parameters, the transformation resulting in an unrelated change to a second characteristic of the first image, and a second characteristic restoration module to restore the second characteristic changed by the transforming of the first characteristic.

The application discloses a photographing method. The photographing method comprises the steps of: judging whether the ambient brightness is smaller than or equal to a preset ambient brightness; if so, controlling a supplement light to work; when the supplement light works, acquiring a first image and processing the first image to detect a light source of the first image; and determining the colorof the light source of the first image and determining the color temperature of the light source of the first image; and performing white balance processing on the first image according to the colortemperature of the light source of the first image. The application also discloses a photographing device, a computer readable storage medium and computer equipment. According to the photographing method and device, the computer readable storage medium and the computer equipment, when the ambient brightness is smaller than or equal to the preset brightness, the accuracy of detecting the color temperature of the light source of the first image is improved by using the supplement light, and then the white balance processing can be performed on the first image according to the more accurate colortemperature of the light source of the first image, so that the tone of the first image after the white balance processing is more accurate.

An image display according to the present invention includes a driving device which performs pulse width modulation drive, restrains power consumption, and produces a good multi-tone display. The image display makes the difference between the scan line voltage and the signal line voltage equal in positive polarity writing and negative polarity writing by which pixels are AC driven, so as to make the on-resistances of transistors equal. This allows a maximum pulse width, the size of switching elements, etc. to be determined first so that they match positive polarity writing in which the resistances value of the switching elements rise. No high frequency clock is required to produce subtle differences of charge ratio in negative polarity writing in which the resistances of the switching elements fall. Power consumption which depends on the clock frequency drops too.

The invention discloses a photographing method. The photographing method comprises the following steps: controlling a light supplementing lamp to carry out auxiliary exposure so as to obtain a first image; acquiring the color temperature of a light source of the first image; determining the first color temperature of a scene according to the color temperature of the light source of the first imageand the color temperature of the light supplementing lamp; acquiring a second image when the light supplementing lamp is turned off; acquiring the color temperature of a light source of the second image as the second color temperature of the scene; determining the equivalent color temperature of the scene according to the first color temperature and the second color temperature; and carrying outwhite balance processing on the second image according to the equivalent color temperature of the scene. The invention further discloses a photographing device, a computer readable storage medium andcomputer equipment. According to the photographing method and the device, the computer readable storage medium and the computer equipment provided by the embodiment of the invention, the accurate equivalent color temperature of the scene is determined according to the first image acquired when the light supplementing lamp is turned on and the second image acquired when the light supplementing lampis turned off, so that the tone of the second image subjected to the white balance processing according to the equivalent color temperature of the scene is more accurate.

A background color of a document is detected based on image data of a colormetric system in which brightness and color components are separated. A color plane is divided into a plurality of color areas, and the number of elements of image data belonging to each color area is counted. The number of elements of image data belonging to each area of a multiple area constituted of mutually adjacent color areas is then counted. A color area in which the number of elements of image data exceeds a first threshold is extracted and given a positive evaluation. A multiple area in which the number of elements of image data exceeds a second threshold is extracted and a positive evaluation is given to each color area in the multiple area. A color area receiving a positive evaluation both individually and as part of a multiple area is specified as a color area of background color.

The invention relates to a bilingual pronunciation advanced-training device and a bilingual pronunciation advanced-training method for deaf children. The bilingual pronunciation advanced-training device comprises a single chip microcomputer (3), an air pressure sensor (12) and a cavity (16), wherein the air pressure sensor (12) is arranged at the front end (or at an opening of the front end) of the cavity (16); the air pressure sensor (12) is connected with the single chip microcomputer (3); an opening formed at the rear end of the cavity (16) is aligned with the mouth when the device is in use. An advanced intelligent technology is introduced, and the deaf children are endowed with rights of receiving scientific and systematic training of bilingual pronunciation and enjoying the achievement of the intelligent technology, so that the deaf children can communicate smoothly and beautifully in both Chinese and English.

The invention provides a method for assembling a frame of an invisible sound box, comprising the following steps of: S1, making a mould in the preset structure of the invisible sound box, and ejectingintegrated installing tubes according to the mould, wherein glue grooves in staggered arrangement are arranged in two ends of the installing tubes; S2, filling the glue grooves of every two installing tubes with glue for adhesion, so as to form a square frame of the invisible sound box; S3, embedding the frame of the invisible sound box in a reserved wall body installing position which is 3mm-5mmlower than the wall; S4, plastering gaps around the frame of the invisible sound box; S5, putting and fixing the invisible sound box in a reserved invisible sound box installing position within the frame of the invisible sound box, and coating the surface, towards the audience, of the frame of the invisible sound box with acoustic fiber powder as well as a decorative material. The concealed method for assembling the frame of the invisible sound box provided by the invention realizes an installation method of a durable frame of the invisible sound box, and the frame is capable of moisture andtemperature change resistance.

The invention relates to the vocal music assistant technology field and particularly relates to a vocal music training assistant system. The system includes a server, a vocal music training database,a training playing module, a sound signal transceiver module, a pronunciation proofing module, a data analysis module and a vocal music recommendation module. Through collecting the pronunciation of atrainee, proofreading is performed with the trained music as a reference object, when the pitch of the proofread tone is different from the pitch in the corresponding music, error statistic is performed, the analysis result of the error frequency trend formed by pronunciation of the trainee of the same music after multiple trainings is obtained, according to the analysis result, music with different difficulty degrees is recommended to the trainee for training. The system is advantaged in that according to the strength level of the trainee, the music suitable for the trainee is recommended for training, for the beginner trainee, the system has a certain guiding effect.

An image forming apparatus includes an image supporting member; an exposure device for forming a static latent image on the image supporting member; a developing device for developing the static latent image formed on the image supporting member; an image control unit for controlling a condition for forming an image; and a density sensor for detecting a developer density. In the image forming apparatus, a first pattern for detecting the developer density is formed to determine whether the developer density is proper. When the developer density thus detected is greater than a threshold value, a second pattern for discarding developer is formed to discard the developer. A third pattern for density correction is formed to perform the density correction.

The invention, a dynamic subtitle, relates to the technical field of word record and display, which is mainly made with computer FLASHY software technology and displays dynamic words on display screen. The invention mainly comprises a word, a first phonetic symbol line, a second phonetic symbol line, a third phonetic symbol line, a fourth phonetic symbol line, a play head and a dyed word. Corresponding first, second, third or fourth phonetic symbol line can be positioned over the word to directly display the phonetic symbol of the word belongs to the first, second, third, fourth or light phonetic. Besides, a play head, a dyed word and sound are provided for the word, and; some words can be moved upwards and downwards correspondingly when the play head passes. Therefore, the invention does not only intuitively enhance the memory effect of vision and sound, but also ensure excellent synchronization in the chant of a plurality of person, which brings much convenience for enhancing the chanting level in Mandarin Chinese and can be best applied for pupils to learn new words and to chant poems.

The invention discloses an accessory ingredient for a tuning peg. A viscous solution is prepared after taking a rosin resin and an organic solvent as substrates and then adding one or two of gel and grease. According to the invention, the preparation process is simple, the operation is easy, the thick state is convenient for coating and dosage control, the liquid state is convenient for the solution to dip on uneven surfaces of the tuning peg and the tuning peg hole, and meanwhile, a cooperating layer is formed on the contact surface of the tuning peg and the tuning peg hole, so that the tuning peg can be flexibly adjusted and rotated in the tuning peg hole and the tuning peg is non-slipping after a tensile force of the string is applied.

The invention relates to the field of education, in particular to a smart error correction and calligraphy practicing device. The smart error correction and calligraphy practicing device comprises a writing board and an intelligent error correction pen placed on the writing board; the writing board comprises a pad board, a groove, character display boards, two-dimensional codes, a clamping board and calligraphy practicing paper, the character display boards are arranged at the left end of the pad board, the groove is formed in the right end of the pad board, the two-dimensional codes corresponding to characters are arranged on the right sides of the character display boards, and the calligraphy practicing paper which is fixed by the clamping board is arranged between the two-dimensional codes and the groove. Compared with a traditional method, the device adopts the two-dimensional codes in cooperation with an image decoding module, characters which are about to be written by a studentcan be accurately identified, the characters are correctly pronounced, and the device has the functions of identifying and correcting writing errors; at the same time, the device can give out a promptin time when the student bites the pen.

The invention discloses an adjustable multifunctional English auxiliary reading and training integrated device and method, and the device comprises a fixed plate and an adjusting plate, the top end of the fixed plate is fixedly provided with a lower adjusting rod, the bottom end of the adjusting plate is fixedly provided with an upper adjusting rod, and a double-end threaded rod is arranged between the lower adjusting rod and the upper adjusting rod, threaded grooves are formed in the top end of the lower adjusting rod and the bottom end of the upper adjusting rod, a rotating disc is fixedly arranged at the outer end of the double-end threaded rod, a reading plate is arranged at the top end of the adjusting plate, and a first sliding groove is formed in the top end of the adjusting plate. By arranging the adjusting plate capable of adjusting the height and the reading plate capable of adjusting the angle, the desk can adapt to people with different heights and body types for reading, so that the desk is comfortable in reading, high in practicability, capable of adapting to reading habits of different people, high in adaptability and capable of enabling people not to keep a posture and angle all the time, the reading fatigue and discomfort can be relieved, and the practicability is further enhanced.

The invention provides a pronunciation and font combined single English word memorizing device. The device comprises an input unit, a comparison unit, a storage unit and a judging unit, wherein the input unit is used for inputting required single words to be memorized, the comparison unit compares the input single words, the storage unit stores comparison rules, and the judging unit judges an accent or a secondary accent of a single word; the input unit, the comparison unit and the judging unit are connected sequentially, and the storage unit and the comparison unit are connected. According to the pronunciation and font combined single English word memorizing device and a method, successful results can be achieved rapidly by the aid of the pronunciation, the font and the meaning of a single word.