Abstract: A surface pattern detecting method includes: capturing a surface image of a sample element to be detected, wherein the surface image containing N grayscale pixels and wherein the N is a positive integer; selecting f×N pixels with small grayscale value based on a selection ratio f in order to define a pattern zone and further calculating a pattern mean of the pattern zone based on pixel amount and grayscale value of the pattern zone; selecting f×N pixels with big grayscale value in order to define a background zone and further calculating a background mean of the background zone based on pixel amount and grayscale value of the background zone; and determining whether the surface image has a defect based on the pattern means of the pattern zone and the background mean of the background zone.

Abstract: A surface pattern detecting method includes: capturing a surface image of a sample element to be detected, wherein the surface image containing N grayscale pixels and wherein the N is a positive integer; selecting f×N pixels with small grayscale value based on a selection ratio f in order to define a pattern zone and further calculating a pattern mean of the pattern zone based on pixel amount and grayscale value of the pattern zone; selecting f×N pixels with big grayscale value in order to define a background zone and further calculating a background mean of the background zone based on pixel amount and grayscale value of the background zone; and determining whether the surface image has a defect based on the pattern means of the pattern zone and the background mean of the background zone.

Abstract: An apparatus for feature detection of a test object includes at least one light source module and at least one image capturing unit. The light source module provides light to illuminate a test region of the test object, and includes a substrate, a set of light-emitting components, and a light-focusing unit. The light-emitting components are mounted on the substrate for emitting light in parallel directions that are generally transverse to the substrate. The light-focusing unit is to be disposed between the light-emitting components and the test object, receives the light emitted by the light-emitting components, and focuses the light on the test region of the test object. The image capturing unit captures an image of the test object at the test region.

Abstract: An apparatus for feature detection of a test object includes at least one light source module and at least one image capturing unit. The light source module provides light to illuminate a test region of the test object, and includes a substrate, a set of light-emitting components, and a light-focusing unit. The light-emitting components are mounted on the substrate for emitting light in parallel directions that are generally transverse to the substrate. The light-focusing unit is to be disposed between the light-emitting components and the test object, receives the light emitted by the light-emitting components, and focuses the light on the test region of the test object. The image capturing unit captures an image of the test object at the test region.

Abstract: A vehicle deceleration communication system includes a deceleration detecting sensor mounted on a decelerating device for detecting deceleration action performed by a driver in traveling so as to send out a deceleration signal, a deceleration signal emission displaying device activated by the deceleration signal from the deceleration detecting sensor, the deceleration signal emission displaying device comprising a deceleration signal emitter mounted at a rear end of a car and a deceleration display to alert a trailing car driver to deceleration of the car, and a deceleration signal reception displaying device comprising a deceleration signal receiver mounted at a front end of the car and a receiving signal display which will flash and/or send out warning sounds to alert the trailing driver to the deceleration of the front car.

Abstract: A landing truck for receiving an aircraft in a forced landing constituted with a wheeled vehicle independently driven by front and rear engines and steered synchronously via front and rear steering compartments, a landing frame controllably operative in cooperation with a landing angle of the aircraft, a trapping unit and a cushion unit provided on the landing frame for absorbing impact and vibration of the aircraft landing on the landing frame, a supporting and a balancing unit for supporting and balancing the aircraft, and an automatically controlling unit including a set of touch sensors and a monitoring system, whereby the landing of the aircraft can be monitored in multiple viewing angles by operators in the front or the rear steering compartments, which help the operators to steer and control the landing truck in cooperation with the landing aircraft.