2026年7月29日 星期三

forced perspective透視錯覺 : 麥特戴蒙在《奧德賽》打鬥場景中的二頭肌 (Matt Damon’s Biceps)?其實是身高僅1.4公尺的男主角的替身戴文道爾頓Devyn Dalton, a 4-foot-6 woman, ....實景拍攝不用 GREEN SCREEN. 綠幕是一種純綠色背景,用於影片和攝影製作中,以隔離拍攝對象並在後製中替換背景。

 

綠幕是一種純綠色背景,用於影片和攝影製作中,以隔離拍攝對象並在後製中替換背景。工作原理:色度鍵控隔離:去除綠色背景的過程稱為色度鍵控或色度鍵合成。替換:編輯軟體可辨識特定的綠色範圍,使其透明,並在其下方疊加新的背景影像或影片。為什麼要使用綠色?色彩對比:綠色與人類膚色和普通衣物顏色差異顯著。數位感光度:數位相機感光元件對綠色更敏感,與其他顏色相比,捕捉綠色所需的光線更少。常見用途:電影與電視:增加特效、數位佈景或危險特技背景。新聞廣播:在新聞主播身後顯示天氣地圖或圖形。內容創作:用於視訊通話(如 Zoom)或直播的虛擬背景。基本設定與編輯技巧:照明:均勻照亮螢幕以避免產生強烈的陰影,並使主體與背景保持至少 6 英尺(約 1.8 公尺)的距離,以防止綠光。反射到他們身上。服裝:避免讓主體穿著綠色衣服或穿戴反光配件,因為這些物品可能會在摳像過程中消失或導致故障。軟體工具:使用 Adob​​e Premiere Pro 中的 Ultra Key 或 DaVinci Resolve 中的 Delta Key 等工具來取樣綠色並優化摳圖。

A green screen is a solid green backdrop used in video and photography production to isolate a subject and replace the background during post-production. [1, 2]
How It Works: Chroma Keying
  • Isolation: The process of removing the green background is called chroma keying or chroma key compositing.
  • Replacement: Editing software identifies the specific green color range, makes it transparent, and layers a new background image or video underneath. [1, 2, 3]
Why Use Green?
  • Color Contrast: Green stands far apart from human skin tones and ordinary clothing.
  • Digital Sensitivity: Digital camera sensors are more sensitive to green, requiring less light to capture a clean signal than other colors. [1, 2]
Common Uses
  • Film and Television: Adding special effects, digital sets, or dangerous stunt backdrops.
  • News Broadcasting: Displaying weather maps or graphics behind news anchors.
  • Content Creation: Virtual backgrounds for video calls (like Zoom) or live streaming. [1, 2, 3, 4, 5]
Basic Setup and Editing Tips
  • Lighting: Light the screen evenly to avoid harsh shadows, and keep your subject at least 6 feet away from the backdrop to prevent green light reflecting onto them. [1, 2]
  • Wardrobe: Avoid letting your subject wear green clothing or reflective accessories, which can disappear or cause glitches in the keying process. [1]
  • Software Tools: Use tools like Ultra Key in Adobe Premiere Pro or the Delta Key in DaVinci Resolve to sample the green color and refine the cutout. [1, 2]


----

A battle scene from “The Odyssey” in a misty forest.
Damon explained that Nolan used forced perspective to create the illusion that Odysseus’ army was minuscule as compared with the man-eating giants they battle.Credit...Melinda Sue Gordon/Universal Pictures

《奧德賽》中霧氣瀰漫的森林裡的一場戰鬥場景。


達蒙解釋說,諾蘭運用了透視錯覺,營造出奧德修斯的軍隊與他們所對抗的食人巨人相比顯得渺小的錯覺。圖片來源:Melinda Sue Gordon/環球影業



Matt Damon’s Biceps in That ‘Odyssey’ Fight Scene? They’re Hers.

Devyn Dalton, a 4-foot-6 woman, is the leading man’s stunt double in Christopher Nolan’s summer blockbuster.


454

麥特戴蒙在《奧德賽》打鬥場景中的二頭肌?其實是她的。 身高僅1.4公尺的戴文道爾頓是克里斯多福諾蘭這部暑假大大片中男主角的替身。 收聽 · 4分55秒 分享全文 記者頭像 208 《奧德賽》電影海報,描繪了身穿盔甲的高大人物與一名持劍者對峙的場景。 《奧德賽》打鬥場景劇照,特技演員戴文道爾頓取代麥特戴蒙出賽。圖片來源…



A movie poster for “The Odyssey,” depicting tall, armored figures facing a single person holding a sword.
A shot from a fight scene in “The Odyssey,” with the stunt woman Devyn Dalton standing in for Matt Damon.Credit...

A selfie of Dalton on a hiking trail, with headphones around her neck and a black North Face backpack on.
Dalton has been performing stunts since 2011, but the Christopher Nolan film is the first time she’s done stunts for a male A-lister

沒有留言:

網誌存檔