초록 ▼

An image processing device for a vehicle according to the present invention has an edge extractor for emphasizing edges of a traffic lane in a front road image signal generated by a digital image pick-up device, a threshold setter for setting a threshold to extract the edges of the traffic lane base

An image processing device for a vehicle according to the present invention has an edge extractor for emphasizing edges of a traffic lane in a front road image signal generated by a digital image pick-up device, a threshold setter for setting a threshold to extract the edges of the traffic lane based on the result detected by the edge extractor, an outline extractor for extracting an outline of the traffic lane to generate an outline data based on the result detected by the edge extractor and the threshold set by the threshold setter, a noise eliminator for eliminating noise components from the outline data, a white line detector for detecting lane-indicating lines based on the outline data from which the noise components have been eliminated, an attitude change detector for estimating the attitude of the vehicle based on the detected lane-indicating lines, and a target advance direction detector for detecting a target direction to advance the vehicle based on the result obtained by the white line detector and the estimated attitude of the vehicle. According to the image processing apparatus, the target direction to advance the vehicle can be exactly measured, even if the helix angle (i.e. pitch angle) changes.

대표청구항 ▼

An image processing device for a vehicle according to the present invention has an edge extractor for emphasizing edges of a traffic lane in a front road image signal generated by a digital image pick-up device, a threshold setter for setting a threshold to extract the edges of the traffic lane base

An image processing device for a vehicle according to the present invention has an edge extractor for emphasizing edges of a traffic lane in a front road image signal generated by a digital image pick-up device, a threshold setter for setting a threshold to extract the edges of the traffic lane based on the result detected by the edge extractor, an outline extractor for extracting an outline of the traffic lane to generate an outline data based on the result detected by the edge extractor and the threshold set by the threshold setter, a noise eliminator for eliminating noise components from the outline data, a white line detector for detecting lane-indicating lines based on the outline data from which the noise components have been eliminated, an attitude change detector for estimating the attitude of the vehicle based on the detected lane-indicating lines, and a target advance direction detector for detecting a target direction to advance the vehicle based on the result obtained by the white line detector and the estimated attitude of the vehicle. According to the image processing apparatus, the target direction to advance the vehicle can be exactly measured, even if the helix angle (i.e. pitch angle) changes. ormation in the data storage element relating to the nature of the sample, the apparatus can be tuned to that type or class of sample and more reliable results obtained. A suitable data storage element is a bar code, and a suitable sample container is a tray. The apparatus preferably includes an image storage means for storing the output of the detector, wherein the data storage includes an identification code for a sample in the container, the image storage means being adapted to store the detector output in association with the identification code. This apparatus is particularly useful in scanning meat for bones. Containers in which the apparatus detects a bone are then presented for checking, and the stored detector output can be displayed to assist the operator. It is preferred that the stored detector output is displayed and the location of the bone in the container is identified. , wherein the distance between the first cathode and the first anode is arranged so as to be shorter a few times the interaction length of the short-range electrons. 6. The detector as claimed in claim 1, further comprising a gaseous avalanche amplifier for avalanche amplifying electrons created during ionization of said ionizable gas. 7. The detector as claimed in claim 1, further comprising an amplifier for amplifying the electrons created during ionization of said semiconducting material. 8. The detector as claimed in claim 1, wherein said second cathode and said second anode are arranged such that said part of said radiation can enter said solid state slab between said second cathode and said second anode. 9. The detector as claimed in claim 1, wherein said second cathode and said second anode are arranged such that said part of said radiation can enter said solid state slab through said second cathode and substantially perpendicular to said second cathode and said second anode. 10. The detector as claimed in claim 1, wherein the radiation entrance is arranged such that a planar radiation beam can enter the space, and the read-out arrangement is arranged such that electrons derivable mainly from ionization by transversely separated portions of said planar radiation beam are separately detectable. 11. The detector as claimed in claim 1, wherein the first cathode and the first anode are substantially parallel with each other and wherein the second cathode and the second anode are substantially parallel with each other. 12. The detector as claimed in claim 1, wherein the first cathode and the first anode are substantially non-parallel with each other and wherein the second cathode and the second anode are substantially non-parallel with each other. 13. A device for use in planar beam radiography, said device comprising: an X-ray source; means for forming an essentially planar X-ray beam located between said X-ray source and an object to be imaged; and the detector as claimed in claim 1 located and arranged for detection of the planar X-ray beam as transmitted through or reflected off said object. 14. The device as claimed in claim 13, further comprising: a second detector as claimed in claim 1, where the detectors are stacked to form a detector unit; and means for forming an essentially planar X-ray beam for each detector, said means being located between said X-ray source and said object, wherein each detector is located and arranged for detection of the respective planar X-ray beam as transmitted through or reflected off said object. 15. A detector for detection of ionizing radiation comprising a first detector section, which includes: a first cathode and a first anode between which a first voltage is applicable; a space capable of being filled with an ionizable gas and arranged at least partly between said first cathode and said first anode; a radiation entrance arranged such that ionizing radiation can enter said space between said first cathode and said first anode, for ionizing the ionizable gas; a read-out arrangement, wherein said first voltage is applicable for drifting electrons created during ionization of said ionizable gas towards the first anode, and said read-out arrangement is arranged for detection of the electrons drifted towards the first anode; and a second detector section, which includes: a second cathode and a second anode between which a second voltage is applicable; a solid state slab of an ionizable semiconducting material and arranged between said second cathode and said second anode; and a second radiation entrance arranged such that radiation can be entered into said solid state slab for ionizing the ionizable semiconducting material,wherein said second voltage is applicable for drifting electrons and holes created during ionization of said semiconducting material towards the second anode and cathode, respectively, and said read-out arrangement is further arranged for detect