61results about How to "Reduce the amount of detection" patented technology

The invention discloses a camera calibration mark center coordinate extraction method. The calibration mark center coordinate extraction method applies the following steps that (1) an image is divided into areas, and different parameters are set for different areas to perform Hough circle detection so that a circular mark image is obtained; (2) the inscribed polygon of the circular mark image in the step (1) is extracted; (3) Hough linear detection is performed in the inscribed polygon, and the intersection point coordinates of straight lines are extracted; and (4) reliability of the intersection point coordinates is detected, coordinates of the center of circle obtained in the step (1) are compared and a threshold is set, intersection points outside the threshold are deleted, the intersection points of the straight lines within the threshold are obtained, and the mean value of the intersection points of the straight lines is obtained and calibration mark center coordinates are obtained. The image is divided into areas, the parameters of different areas are respectively set to perform circle detection in the circle detection process, and the mean value is obtained according to the intersection point coordinates of the straight lines and the mark center coordinates are obtained so that extraction precision of the center coordinates is greatly enhanced.

The invention relates to a screen detection device, and discloses a screen detection and screening device. The screen detection and screening device comprises a transport device and a screening device, wherein a first conveying belt is arranged on the transport device; a clamping device is fixed on the first conveying belt; a screen is clamped on the clamping device; one end of the first conveyingbelt stretches into the screening device; the screening device comprises a transfer device for transferring the screen from the transport device to the screening device, a carrying device arranged below the transfer device, a conveying device for driving the carrying device to move to a detection device, and a marking device arranged at one end of the detection device; a transmission device is slidably connected above the transfer device; the transmission device is fixedly connected with the upper end of a support, and the lower end of the support is fixedly connected with the conveying device; a second conveying belt is arranged on the conveying device; and the detection device is arranged between the conveying device and the transmission device, the lower end of the detection device isfixed on the conveying device, and a space allowing the carrying device to pass is reserved between the detection device and the conveying device. The screen detection and screening device is beneficial to saving time.

A method and a wireless device (110) for managing probe messages are disclosed. The probe messages are used for verifying a required level of a connectivity for a service of the wireless device (110) towards a wireless network (100). The required level of the connectivity relates to likelihood of maintaining the connectivity towards the wireless network (100). The wireless device (110) estimates an estimated level of the connectivity for the wireless device (110).The wireless device (110) further adjusts an amount of the probe messages based on the required level of the connectivity and the estimated level of the connectivity. Moreover, corresponding computer programs and computer program products are disclosed.

An optical imaging device includes a display panel whereon a coordinate detecting area is formed, at least one light source disposed outside the display panel for emitting light to illuminate an object, and a depth sensor installed on a side of the display panel for sensing image data of the object. The image data include a width information corresponding to a distance between the object and the depth sensor in a first direction, and a depth information corresponding to a distance between the object and the depth sensor in a second direction. The optical imaging device further includes a control module coupled to the depth sensor for receiving the image data sensed by the depth sensor and for determining whether to calculate a coordinate value of the object according to the width information and the depth information.

The invention provides a planting system and a planting method for controlling the temperature of vegetable roots; wherein the system comprises a hydroponic planting nutrient solution pool and a nutrient solution sterilization temperature-control trough; the nutrient solution sterilization temperature-control trough is arranged beside the growing period hydroponic pool, is internally provided with a precise filter, a nutrient solution cooling group, a temperature sensor group and an electric heater heating group and is externally provided with a condensation compression unit that is connectedwith the nutrient solution cooling group; and a ultraviolet sterilization device is arranged above the nutrient solution sterilization temperature-control trough. The method comprises the following steps of: planting the hydroponic vegetable in the planting system for controlling the temperature of the vegetable roots; opening the nutrient solution valves arranged at two sides of the planting pool by the temperature-control planting system; pouring the nutrient solution into the nutrient solution sterilization temperature-control trough; filtering the solution by a precise filter; reducing the temperature when the solution flows by the nutrient solution cooling group subsequently or increasing the temperature by the electric heater heating group so as to lead the temperature of the nutrient solution to be kept at about 18 DEG C in summer and at about 22 DEG C in winter and lead the temperature of the vegetable plant to be reduced or increased, thus leading the vegetables to have the capability of resisting hot or cold weather.

The invention relates to environment-friendly paint simulating a hyperspectrum of green vegetation and a preparation method of the environment-friendly paint. A component B of the paint comprises the following ingredients in percentage by mass: 30-45% of fluorocarbon resin, 10-30% of special pigment, 10-25% of filling, 1-8% of dispersing agent, 0.1-1% of flatting agent, 1-5% of matting agent, 0.01-0.3% of drier and 15-25% of mixed solvent; the special pigment comprises the following ingredients in percentage by mass: 1-13% of rutile titania, 1-8% of 1,4 diketopyrrolopyrrole organic red pigment, 0-4% of inorganic cobalt blue, 2-20% of benzimidazolone organic yellow pigment, 17-60% of green pigment and 10-75% of black pigment; a component A is aliphatic polyisocyanate; and a mass ratio of the component A to the component B is 1:14. The paint has good film coating luster, corrosion resistance and weather resistance, is free from hexavalent chromium, and an effective hyperspectrum (400-1300nm) scope has a specific reflection spectrum characteristic of the green vegetation.