繢йѺͧ͡͡Ҿ觴ԨԷ (digital still camera) ͷѡ¡ѹҡͧԨԷ ¡ԨóͧǢ˭ͤسҾͧͧ ͧСͺҧ Ѻдǡ㹡ҹ

ѡͧ͡Ԩóҡ͹ҷҹͧáͧسҾдѺ㹧ҳҹ ͧҡҤҢͧͧԧѺسҾҧҡ ͧسҾ٧Ҥᾧ仴 ҡ鹤仾ԨóººѵԴҹҹҷҹͧäö㴺ҧ

سҾͧҾҡͧԨԷŢ鹡ѺѨµҧ 仹

1. ´ (Resolution)

´ ¶֧ӹǹԡ (pixel, Picture Element) ѺҾ (image detector, Imager) Ҩ繫իմ (CCD-Charge Coupled Device) ͫ (CMOS-Complementary Metal Oxide Semiconductor) ҧ 3.34 ҹԡ 2.1 ҹԡ繵 ӹǹԡŢͧѺҾռҧ觵ͤسҾͧҾ㹴ҹ´ФѴ ͧҡͧըӹǹԡźѺʧҡöѹ֡´ͧҾҡ

Ҿ 1 ʴմͧҾҡͧդ´ҧѹ

 

 

㹻ѨغѹͧԨԷöѴ´ 4 дѺ

1. дѺ´ҡ ͧ㹡ըӹǹԡŻҳ ֧ 3 ʹԡ 辺繡ѹ令 web camera toy camera

2 дѺ´ ͧ㹡ըӹǹԡŻҳ 3 ʹ ֧ 1.5 ҹԡ

3. дѺ´ҹҧ ͧ㹡ըӹǹԡŻҳ 2.1- 4 ҹԡ

4. дѺ´٧ ͧ㹡ըӹǹԡ ҡ 4 ҹԡ

ͧ͡дѺ㴹ѵػʧͧҹѡ ǤͧäسҾҡѡ ٻҾҴ ҹѾͶ ͧҤҶ١ҤдѺѹҷ͵͡ҹ ҡͧҧྨ¤͡դسҾբ ·ҾԹѡբҴԹ 800x600 ͻҳ 5 ʹԡҹ ͧдѺ´դö§ͷسҾ ҡͧդ´٧ҡ ҡͧŴ´ͧҾŧͧҾբҴзйʹͺҾ ҡҾҴ˭ բҴ˭仴· load ҾҴٷ ҡͧùҾ仾ͧդ´٧ ͻҹҧ鹡Ѻҵͧþ颹Ҵ˭ش

äӹdzҢҴͧҾդسҾ٧ش§Ҿ· öٵ ҴͧҾ = ӹǹԡźдҹͧҾ鹩Ѻ / 300 ˹·繹 ҧҾ鹩ѺҴ 800x600 ԡ Ҩо颹Ҵ (800/300) x (600/300) = 2.67 x 2 жҾ鹩ѺբҴ 3000x2000 ԡ Ҩо颹Ҵ 10 x 6.67 ҧáöҾբҴ˭ࡳ˹ سҾŴŧ仺ҧ 鹡Ѻͧ෤աþк ҡͧ ҨҴҡࡳҡѡ ѧդسҾࡳѺ ҡккþ֡ ԧ(inkjet) ҨöҾҴ 8x10 ҡ鹩Ѻդ´ 3 ҹԡѧҾդسҾࡳ ѧҡͧùӡͧͼԵ觾 Ҵ A4 ͧդ´ 6 ҹԡ ҡͧþҾͧԧҾҴʡ 4x6 ѡ 5x7 ͧդ´ 2-3 ҹԡš礧§͡Ѻҹ ҡͧҾҴ A4 ͧ ´ҡ 4 ҹԡŢ

2. Ź (Lens)

ͧԨԷŷöʹ¹Ź ѡ繡ͧдѺҪվҤᾧ ѧ鹼СǶ֧ѨͧŹͧͧԨԷǹ繡ͧʹ¹Źѡ ·仡ͧԨԷѡŹö¹⿡ (Optical zoom) ͷ¡ѹŹ ͧŹ鹨Ҥ٧ҡͧö¹⿡

ͧԨԷŷԵǹ˭ö㹪ǧŹҧ֧Ź öҾͺء ҡҺҡͧö㴹٨ҡŹͧͧ 7-21 mm 繵 ººѺͧ 35 . ѹ ŹͧͧԨԷŨբҴ Ф⿡ʹ¡ 駹ͧҡҴͧ㹡ͧ 35 բҴ˭ҢҴͧѺʧ㹡ͧԨԷ ͤдǡ Եѡʹ͢ŷͧǹͤ⿡ʢͧŹԧѺ⿡ʷºҡͧ 35 ͧ Nikon Coolpix 950, zoom lens 7-21mm (38-118mm, 35mm equivalent) ʴŹͧͧöŹҧŹ硹 (»㹡ͧ 35 ҨШѴŹդ⿡ʵӡ 50 Źҧҡ 50 Ź) ԵѡЪѹö㹡ëͧͧ 2X 3X 觷͡§ҧ ҹ ҧáաԧµ͡ºº ҨзҺѹ ͧ zoom 3x դö㹡ëա ͧ zoom 2x 駹觷ѧͧ͡ҧ դö㹡÷ digital zoom ÷ digital zoom ҧҡëԴҡ¹⿡ʢͧŹ Ǥ interpolation ¡ԡҡ鹨ҡäӹdz ֧Ҿ˭鹡 ҾդѴŴŴ ѧ鹡͡Źºº Optical Zoom ѡ

ͧҧöѺŹöŹ ͹繢蹷ҨоԨó ͧ nikon coolpix ö֧ 1 ͡ҡѧ觷þԨóҶ֧ö㹡ûѺŢͿ (f number) ҡͧյŢͿ Ҩзö͡Ѵ֡ͧҾҡдѺ 駤ҧͧŹ ¾ԨóҨҡŢͿ·ش з¹ͧ Olympus camdia 2040Z 3040Z ҧҡش f1.8

3. èѴ§ǢͧѺʧ

ǹ˭ CCD ͧͧٻШШѴ§Ẻҧҡء͵͡ѹ 0 ͧǹ͹ 90 ͧǵ § Fuji Film ҧ CCD ٻỴ § 45 · Fuji ͡ըش 4 ͤ

1. resolution ٧ҧҧǵǹ͹Ŵŧ ѹѺͧ繢ͧ

2. signal to noise ratio (s/n) բ ͷѺʧҡ

3. dynamic range բ ͷѺʧҡ

4. sensitivity բ ͷѺʧҡ

Fuji ͡ superCCD ö resolution ҡ 60% 1.6 Ңͧ CCD Fuji ҧҴͧ CCD Ẻ ͻ 1999 Ѻ Finepix 4700Z 蹵 ҷͧ Supper CCD ըӹǹѺʧ superCCD 2.4 ҹ pixel Ҿ´٧ش֧ 4.3 Megapixel ҡ interpolation

ӶǤسҾͧҾºѺͧ 3 ҹԡ㹵ҴҤ§ѹ ÷ͺСººͧҧ öҹҡ website 跴ͺͧµç 觷繵çѹҤسҾ͹ FUJI ͡ ʹǡѺ super CCD ෤յǹ繡ù ѡɳТͧ繢ͧҧ繼Եѳ ǤͤҨ´ǹ͹ҡǵ硹 зǹ͹ǵҡ§ Super CCD ѡù ҷѹǵǹ͹ 觨з´ҡ ѹԧǤԴ ÷ҡ͹ кþ ink jet ҡ resolution ͧͧǹ͹ҡǵ 1440x720 dpi 繵 Fuji 繤áѺͧԨԷ ѭҾѹ֡ҡ supper CCD еͧ١Ѵ§ǹ͹ǵ 觵ͧ Interpolate ա çͧ·سҾѺͧŴŧҡͤ

4. ԴСèѴ§

ͧԨԷǹ˭ RGB ѧ˹ҵѺʧ Ѻʧ 1 տѧ§˹ҹ ʴͶҾоԡŨ红Ҿ§˹ҹ ҾоԡբŤú ҾաͧշԴ㹾ԡŨҡҾ Դҡ interpolation ͧͿҾ㹡ͧ §ǢͧӴѺҧáռŵͤسҾҹѴ ١ͧͧ ͺ ͧǹ˭ШѴ§Ẻ (Bayer) RGBG ҧáͧҧ੾Тͧ Canon CMGY Cannon PowerShot G1, A5, Pro70 ͧԵѡ´ ͧҡԵçҧͧᵡҧѹҡѡ ·ѡǹ

5. Ϳ

ͿǹӤѭµͤسҾͧҾҡͧԨԷ Ҩ繡 interpolation ûѺբ (white balance) Ŵѭҳúǹ (noise reduction) ûѺѴ (sharpness) ǵǢͧ (saturation) ͧҤҶ١ѡիͿѺء觷ءҧµͧͺ ҹöѺѡ ҧá ͧդسҾ٧ öѺ´÷ӧҹͧͿҧҾʧѵط ͧкѷͿѲѺͧǹ ੾ ЫͿ㹡ͧ¡ firmware 觺ѷҨաûѺا firmware ѺسҾС÷ӧҹͧͧ բ õǨͺѺ web site ͧͧ͹ͧաûѺا firmware ҧ

 

ҡҷ 5 ѨµҧռŵͤسҾͧҾش· ͤþԨóҨҡسҾͧҾӤѭҡͧ سҾ繷Ҿ֧ ͧդسҾ§дѺǡѹ ѡҤᵡҧѹҡ

ͧСͺ Фдǡ㹡ҹ

͡ҡͧسҾ þԨóͧСͺ Сͺ仴

1. Դͧ

ͧ㹻ѨغѹѺ红Ҿ ҡҡ鹵෤շ¹ ͻʡ (Floppy Disk) Ū(Compact Flash), (Smart Media) ʵԡ(Memory Stick) իա(PC Card) (Microdrive) Թԫմ (miniCD)

ЪԴդö㹡èѴ红ᵡҧѹ 駷ҧҹ Ф ТҴ ͷդҤԴҤҵ亵ҡش Թԫմ ¤Ңͧúѹ֡ 繷ѡ § sony ҹ鹷ʹѧ ҧá sony buffer öҾǢ ѺͷѺҡ դ 㹡ͧ Olympus Fuji աºѷ ŪѺͷ㹡ͧ Nikon Canon Casio Kodak ǹ memory stick ԢԷͧ⫹㹡ͧͺء蹢ͧͧ ǹÿ բҴҡѺͧŪդ˹ҡ 2 ѧ鹡ͧö ͺѹ֡ ͧ Դ type II Ѩغѹ ػóѺҹ촵ҧ ҡ Ҥҡ٧ҡѡ ҷҹ͡㴷ҹö ҾѧҨẺ desktop notebook

2. Դͧẵ

ẵԧӤѭҡ͡÷ӧҹͧͧ Сͧ蹡ᵡҧѹ ҡͧҹʹ ẵŤŹҹо ͧ¹ẵҡ ͧԨԷǹ˭ըҾ 觵ͧѧҹҡẵҡ ҧ͡ẵö Ҩ NiCd NiMH ѧҡҹͧ͡ẵ袹Ҵ AA ǡͧǡ ẵͧ仴ػó ẵ繷ա˹觤 ͹ բҴ͹ҧ˭ ҹҹ ѡѺͧػóѺ ҡҹҾҡѡ ͧẵẺѺҵͺʹͧ͡ҹշ ҶҾͧѹҡ ҹ Ǥͧҧ 1 ͹ ҧá ẵẺ Ҥ٧ NiMH ͹ҧҡ

3. ͧͧҾҧͿԡ (optical view finder)

ͧҡͧԨԷŵͧѧҹҡ੾СԴ LCD Ҿʹ ѧ ͧҧ͡ẺժͧͧҾ ШѴͧСͺͧҾͧ LCD öҾҹҡ鹡ҳ 3 駹ͧͧҾͧͧըеͧѺҴҾ繵 ëͧŹ ͡ҡͧդسҾѡöҹûѺµ 餹µ öҾͧµ ͧ дѺҤҤ͹ҧᾧ ͧͧҾ硷͹ԡ (electronic view finder,EVF) ᷹ͧͧҾҧͿԡ 觨ö繢Ţͧҵҧ ǡѺͧҾҡ LCD سҾͧҾѧ͹ҧҺ

4. Uncompressed file

÷աͧöѴ红ŷҹúպѴ Ѻ繤öҧ˹觵͡þԨóͧ͡ ͧҡúպѴŨա٭¢Ţͧ鹩Ѻ仺ҧ 鹡ѺҺպѴҡ͹ ҡѴ jpeg ѵҡúպѴẺ superfine ա٭ҡѡ ѧࡵµ͡ ҡ normal basic 繤ͧͧҾ 駹㹡öҾͧä١ͧҡش èѴ红 TIFF º jpeg кҧҡͧâŴԺҹкǹûѺا¹ŧ «Ϳ ͧͧ ͧ͡ raw format

5. White balance

㹡öҾʧᵡҧѹ ʧ俷ѧ൹ ૹ ʧᴴ ѡҾ ᵡҧѹ ҡͧкբǷ ͿǹоѺբͧҾ͡ ١ͧ ǹ˭ǫͿö¹ҡ觡Դʧó ѧշѧԴ¹ ͧտѧѹҾ öѺ white balance Ẻ manual ͧ鹨º öѺբǢͧҾբ ԧ Ҿ¹Ţͧն١ͧ仴 ͧҧ蹨տѧѹٻ¼§ѺԴͧ 觡ԴʧçѺʧҾҹ Ҩ繵 ѧѺҴա

6. Ū

ͧԨԷͺŪ㹵 öҾ㹷ʧ ͧҡŪբҴ ҹ֧Źѡѡջѭͧᴧ ʹʧŪͧѡдѺǡѺŹ ѧҡͧա §ԴᴧҾŪ ͧ͡ŪҧҡŹҡ 蹡ͧк pop up flash ҧá ͧҧѧѹźᴧ仴«觡繡ѭдѺ˹ ҵͧöҾŪ Ǥͧ͡ ҹºŪ (hot shoe) ըشöŪҡҾ͡ҵ

7. çҧٻҧͧͧ

ͧѺ͡Ẻ§ ѺѴ عҧ ҹ դ ҾعͧҾѴਹʧͧҷҾµç ͧСͺӤѭ Ѻͧ͡ ԧҧ ҹФӤѭᵡҧѹ ѧԸշշشͷҹ价ͧ ѺͧҹͧǷҹʹ Ͷ֧ҹԧ Ǫͺͺǹ˹ 駨Ҿ

8.

ѧբ աҡöй к⿡ кöҾ ҹõǨͺҡ specifications ͧͧҧ ´͡õѴԹ㨷ҷش