588 results about "Road edge" patented technology

Method for detecting road edges in a road of travel for clear path detection. Input images are captured at various time step frames. An illumination intensity image and a yellow image are generated from the captured image. Edge analysis is performed. The line candidates identified in a next frame are tracked. A vanishing point is estimated in the next frame based on the tracked line candidates. Respective line candidates are selected in the next frame. A region of interest is identified in the captured image for each line candidate. Features relating to the line candidate are extracted from the region of interest and input to a classifier. The classifier assigns a confidence value to the line candidate identifying a probability of whether the line candidate is a road edge. The potential line candidate is identified as a reliable road edge if the confidence value is greater than a predetermined value.

The invention discloses a burning-and-steam-curing-free alkaline slag brick. The burning-and-steam-curing-free alkaline slag brick is prepared from the following raw materials in part by weight or volume: 20 to 200 parts of alkaline slag or vulcanized alkaline slag, 0 to 200 parts of magnesium slag, 0 to 200 parts of fly ash, 0 to 200 parts of coal cinder, 0 to 200 parts of tailing sand, 0 to 200 parts of limestone powder, 0 to 200 parts of coarse aggregate, 0 to 200 parts of oil shale waste, 0 to 200 parts of activated coagulation aiding material, 0 to 200 parts of waste sand, 2 to 20 parts of cement, and a proper amount of water. The raw materials are stirred and then are fed into a block making machine for vibration compression molding, and a finished product is obtained through natural curing or solar warming-up curing for 7 to 28 days. The burning-and-steam-curing-free solid bricks, perforated bricks, hollow blocks, floor tiles, road edge bricks, grass planting bricks, slope protection bricks and fence railings of different specifications can be produced by replacing different mold machines. Industrial waste slag is utilized to turn harm into good, material selection is flexible, the process is simple and convenient, the cost is low, the strength of the product is high, and the burning-and-steam-curing-free alkaline slag brick has excellent development and application prospects.