The invention provides a program screening method with a mood identifying function. The program screening method includes steps of acquiring user face characteristic information and voice information; comparing the acquired user face characteristic information and the voice information with a preset historic mood comparison database to judge mood types of a user; and screening program information corresponding to the current mood type of the user according to the mood types of the user. The invention further discloses a program screening system with a mood identifying function and a television with the program screening system. By comparing the acquired user face characteristic information and the voice information with the preset historic mood comparison database to judge the mood types of the user and screening historically watched television programs and network movie programs corresponding to the mood type finally, the television program and the network movie program accordant with the mood of the current are selected on the premise of no user operation, and time for screening programs is saved for the user.

Program screening method, program screening system and television with program screening system

The invention discloses a precision calibrating method of an infrared thermometer with a wide temperature range; the method comprises the steps: firstly, acquiring initial temperature values measured by the infrared thermometer according to experiments and drawing into a discrete point drawing; performing segmented fitting for the initial temperature values acquired by the infrared thermometer and a true temperature curve by means of a least square method, and acquiring a correction coefficient of each temperature interval; and finally, correcting the initial temperature values according to the corresponding correction coefficients of the initial temperature values, acquired by the infrared thermometer, in the temperature intervals and acquiring one temperature value which is closer to the actual temperature than the initial temperature values. The measuring precision of the infrared thermometer is improved and the measuring error is reduced.

Precision calibrating method of infrared thermometer with wide temperature range

The invention discloses a method for detecting and monitoring cracks of mechanical parts by utilizing fluorescent quantum dots, and relates to material detection and analysis by utilizing optical methods. The method comprises the following steps: preparing solidifiable quantum dot film forming resin; solidifying at a part to be detected to form a fluorescent quantum dot resin coated film; carrying out a tensile test on a metal CT (Compact Tensile) specimen coated with quantum dot resin coated film to obtain fluorescence spectrum sample data; irradiating the fluorescent quantum dot resin coated film at the part to be detected by using an excitation light source, monitoring whether fatigue cracks occur at the part to be detected or not, and collecting and storing fluorescence spectrum historical data; if the fatigue cracks occur at the part to be detected, determining the width of cracks, and sending safety pre-warning. By detecting the quantum dot resin coated film solidified on a monitored mechanical part, the method disclosed by the invention has the advantages that tiny fatigue cracks on the mechanical part in an early stage can be discovered, the detection precision is high, the cost is low, influence caused by the appearance of a detected component can be avoided, dangerous parts of important mechanical parts can be subjected to real-time safety monitoring, and the application range is wide.

Method for detecting and monitoring cracks of mechanical parts by utilizing fluorescent quantum dots

The invention provides a method for displaying a high-grayscale depth image, and relates to a pseudo-color coding display method for a high-grayscale depth image. According to the invention, the high-grayscale depth image is mapped to RG two channels or RGB three channels through certain computing and processing, details of the high-grayscale depth image are visually displayed at a receiving and displaying terminal of receiving equipment, and the depth precision is highlighted. The content provided by the invention is conducive to display and processing of the high-grayscale depth image.

Method for displaying high-grayscale depth image

The invention relates to the combustion field and the optical measurement technology and particularly relates to a five-channel adaptive two-dimensional temperature field measurer and a measurement method thereof. A flat light splitter is at the back of a combined lens comprising an industrial endoscope and a collimation objective, a light splitter set is mounted in a light splitting direction of the flat light splitter, a color CCD camera is mounted in another light splitting direction of the flat light splitter, black and white near-infrared CCD cameras are respectively mounted in two light splitting directions of the light splitter set, a light filter is arranged between the light splitter set and the black and white near-infrared CCD cameras, each camera is connected with a synchronization data image acquisition card, and the synchronization data image acquisition card is connected with an image processing system. According to the measurer, a before-the-lens light splitting and black and white CCD imaging measurement mode is employed, a four-channel light splitting and two-CCD-camera measurement mode is employed, an image processing method of image segmentation and partitioned area combination is employed, and measurement precision is improved.

Five-channel adaptive two-dimensional temperature field measurer and measurement method thereof

A visible light and infrared light splitting system comprises a window, a primary mirror, a secondary mirror, a lens group, a light splitting piece, two semi-transmitting and semi-reflecting lenses, three total reflection mirrors and two optical filters, wherein the window, the secondary mirror, the primary mirror and the lens group are sequentially placed on a main optical path; the light splitting piece is arranged behind the lens group, the first and the second semi-transmitting and semi-reflecting lenses are sequentially arranged behind the light splitting piece; the second total reflection mirror is placed on the optical reflection path of the first semi-transmitting and semi-reflecting lens; the first optical filter is placed on the optical transmission path of the second semi-transmitting and semi-reflecting lens, and the third total reflection mirror is placed on the optical reflection path; and the second optical filter is placed on the optical reflection path of the third total reflection mirror. The light splitting system can split one beam of light into four beams of light, wherein one of the four beams is visible light, the other three beams are infrared light, one of the three beams of infrared light is all-wave infrared light, and the other two beams of infrared light are monochromatic light with different wavelengths. The light splitting system can be used for real-time shooting and fusion of visible images and infrared images, can also be used in the field of infrared temperature measurement, and can provide a focusing function.

Visible light and infrared light splitting system

The invention relates to a method for detecting a welding seam on the basis of a quantum dot infrared fluorescence display technology. The detection process comprises the following steps of: carrying out primary cleaning on the surface of a welding zone; adding a quantum dot infrared fluorescence material; carrying out infrared laser scanning; acquiring a defect image by a detector; and recording and analyzing defects. The semiconductor quantum dot infrared fluorescence material is applied to carry out defect marking on the welding zone; beam-expanded laser emitted by an infrared laser with the corresponding wavelength is used for carrying out scanning on the welding seam so as to realize infrared excitation of the fluorescence material at the defect position; and then the recording of an implementing image is carried out by the detector. The image can be subjected to post processing to obtain more detailed information of the welding seam and the defect distribution condition of the welding zone is analyzed and forecasted. The method can be used for realizing the detection of the micro welding seam by utilizing the advantages of the linearity of quantum dots at the nano scale, has high detection accuracy and simple process, is used for detecting the defects of the welding seam on the premise of not damaging the welding seam and belongs to the category of the nondestructive testing. According to the method disclosed by the invention, the high precision detection standard can be met and the potential fault of the welding seam can be forecasted.

Method for detecting welding seam on basis of quantum dot infrared fluorescence display technology

The invention discloses a pseudo-color coding method for carrying out digital phase modulation on a gray image signal. The pseudo-color coding method comprises the following steps of: adopting a phase grating coding method as a physical model to carry out mathematical modeling, leading an optical path difference to vary with the density of an input gray image, finding an operator relationship between the strength of a pseudo-color image and the gray value of an original gray image, and always assuming that a white light source only contains three colored lights of red, green and blue, i.e. lambda r, lambda g and lambda b, wherein the light intensity on an output plane expresses the non-coherent superposition of the output three colored lights. The invention provides a pseudo-color coding scheme of the phase modulated digital image based on a RGB (Red, Green, Blue) true color display mechanism in the premise of assumption, thereby the mapping relationship between the gray and the color is optimized, and good operator selection is supplied for processing of the images and other signals. The coding method has good flexibility; and diffractive order colorized images obtained by adopting the coding method have excellent effects and have the advantages of rich chromaticity, good color saturation, high definition and the like.

Pseudo-color coding method for phase modulated digital image

Facial expression recognition method based on evidence theory

The invention discloses a non-contact type infrared measurement system and measurement method for surface temperature (-20DEGC to 60DEG C) of seawater. The non-contact type infrared measurement system can be erected above a ship and points to the sea surface at a vertical inclined angle. According to the non-contact type infrared measurement system and measurement method disclosed by the invention, daylight and dark night can be distinguished; the extraction of infrared signals aiming at different environments is realized; infrared signals of the surface layer of the seawater at night are extracted by adopting a semi-permeable and semi-reflexive membrane with the wavelength being 8-14mum; infrared signals at daylight are extracted by adopting a reflecting membrane with the wavelength being 1.06mum; two paths of silicon photovoltaic detection elements are controlled by using a light sensor to respectively work for converting the acquired infrared signals into electrical signals; and accurate temperature of the surface of the seawater is directly calculated by using a curve fitting method through a signal processing system. According to the non-contact type infrared measurement system and measurement method disclosed by the invention, the temperature of the surface of the seawater can be monitored in real time; the defects in the measurement of the temperature of the seawater bythe current popular contact type temperature measuring apparatus are overcome; the anti-jamming capability of the infrared temperature measuring system is enhanced; and the measurement accuracy is increased.

Infrared measurement system and measurement method for surface temperature of seawater

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